Podcasts about Jacobian

Show is Sponsored by The Ayn Rand Institute https://www.aynrand.org/starthereEnergy Talking Points, featuring AlexAI, by Alex Epstein alexepstein.substack.comExpress VPN https://www.expressvpn.com/yaronJoin this channel to get access to perks:https://www.youtube.com/@YaronBrook/joinLike what you hear? Like, share, and subscribe to stay updated on new videos and help promote the Yaron Brook Show: https://bit.ly/3ztPxTxSupport the Show and become a sponsor: / yaronbrookshow Or make a one-time donation: https://bit.ly/2RZOyJJOnline War; Continue the discussion by following Yaron on Twitter (https://bit.ly/3iMGl6z) and Facebook (https://bit.ly/3vvWDDC )Want to learn more about Ayn Rand and Objectivism? Visit the Ayn Rand Institute: https://bit.ly/35qoEC3 #gazaisrael #ukrainewar #turkeyelection #hatespeech #freespeech #squatters #capitalism #Economy ​#Objectivism​ #AynRand #politics #elections2024

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Intro topic: Revisiting the power of SpreadsheetsNews/Links: LK-99 Isn't a Superconductorhttps://www.nature.com/articles/d41586-023-02585-7 Normalizing Flowshttps://pyro.ai/examples/normalizing_flows_i.html How is llama.cpp possible?https://finbarr.ca/how-is-llama-cpp-possible/ Chat with open source large language models https://chat.lmsys.org/ Book of the Show Patrick: Math with Bad Drawings by Ben Orlinhttps://amzn.to/44dsgDz Jason: Overboard! https://play.google.com/store/apps/details?id=com.InkleLtd.Overboard Nhl=en_US&gl=US  Patreon Plug https://www.patreon.com/programmingthrowdown?ty=hTool of the Show Patrick: ffmprovisr https://amiaopensource.github.io/ffmprovisr/ Jason:Pandas read_ods() read_excel() Topic: Differential Equations Why should programmers learn about DiffEqLaw of Large Numbers What are differential equations? When you know the rate of change EigenVectors & EigenValues What is Jacobian What is Jacobian? | The right way of thinking derivatives and integrals Special cases Partial Differential Equations Ordinary Differential Equations Why solvers are important Numerical Stability at larger step sizes Example: https://medium.com/@pukumarathe/eulers-method-and-runge-kutta-4th-order-method-in-python-b4a0068a8ebe  Fun Examples Predator-Prey relationships in scipy https://scientific-python.readthedocs.io/en/latest/notebooks_rst/3_Ordinary_Differential_Equations/02_Examples/Lotka_Volterra_model.html  Physics Engines for games https://youtu.be/52n2qKgwW_Q  PageRank https://arxiv.org/pdf/2001.08973.pdf  ★ Support this podcast on Patreon ★

Subtitle: The Final Roommate

Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2023.03.29.534799v1?rss=1 Authors: Eckert, M. Abstract: Heschls gyrus (HG) can occur as a single gyrus or with a completely duplicated posterior HG that has been related to a variety of abilities and disorders. Voxel-based studies typically involve the normalization of these qualitatively different HG types, thus making it difficult to evaluate the contribution of sulcal/gyral variability to voxel-based effects and perhaps obscuring some effects. To examine the structural covariance of single and duplicated HG, templates were created for the left single and duplicated HG. Structural covariance analysis with a Jacobian measure of volumetric displacement demonstrated consistent spatial covariance with homologous structure in the right hemisphere across qualitatively different HG morphology. These results suggest that HG duplication is aptly named with respect to cortical structure variation and demonstrate a multi-template approach for studying qualitatively unique brain function and structure linked to perceptual and cognitive functions. Copy rights belong to original authors. Visit the link for more info Podcast created by Paper Player, LLC

Link to bioRxiv paper: http://biorxiv.org/cgi/content/short/2023.02.07.527431v1?rss=1 Authors: Manukian, M., Bahdasariants, S., Yakovenko, S. Abstract: Simulating human body dynamics requires detailed and accurate mathematical models. When solved inversely, these models provide a comprehensive description of force generation that evaluates subject morphology and can be applied to control real-time assistive technology, for example, orthosis or muscle/nerve stimulation. Yet, model complexity hinders the speed of its computations and may require approximations as a mitigation strategy. Here, we use machine learning algorithms to provide a method for accurate physics simulations and subject-specific parameterization. Several types of artificial neural networks (ANNs) with varied architecture were tasked to generate the inverse dynamic transformation of realistic arm and hand movement (23 degrees of freedom). Using a physical model to generate the training and testing sets for the limb workspace, we developed the ANN transformations with low torque errors (less than 0.1 Nm). Multiple ANN implementations using kinematic sequences solved accurately and robustly the high-dimensional kinematic Jacobian and inverse dynamics of arm and hand. These results provide further support for the use of ANN architectures that use temporal trajectories of time-delayed values to make accurate predictions of limb dynamics. Copy rights belong to original authors. Visit the link for more info Podcast created by Paper Player, LLC

The British Prime Minister steps down. Ben apologizes for riffing on it. And Micah Uetricht, editor/writer for Jacobian, manages to defend the New York Times. Is Ben unfair to the Times? See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Velocity profiles of matter and biased tracers around voids by Elena Massara et al. on Monday 10 October The velocity profile of galaxies around voids is a key ingredient for redshift space distortion (RSD) measurements made using the void-galaxy correlation function. In this paper we use simulations to test whether the velocity profile of the tracers used to find the voids matches the velocity profile of the dark matter around these voids. A mismatch is expected and found in the inner part of voids, where tracers are very sparse. We discuss how this difference is caused by a selection effect where the void centre positions are correlated to the particular realization of the sparse tracers and their spatial distribution. In turn, this then affects the RSD void-galaxy correlation analysis. We show this by evaluating the Jacobian of the real to redshift space mapping using the tracer or matter velocity profile. Differences of the order of 20% in the velocity profile translate into differences of the order of few percent in the Jacobian. This small discrepancy propagates to the monopole and quadrupole of the void-tracer correlation function, producing modifications of comparable magnitude to those from changes in $fsigma_8$ at the level of the statistical uncertainties from current analyses. arXiv: http://arxiv.org/abs/http://arxiv.org/abs/2206.14120v2

Welcome to The Nonlinear Library, where we use Text-to-Speech software to convert the best writing from the Rationalist and EA communities into audio. This is: [Short version] Information Loss --> Basin flatness, published by Vivek Hebbar on May 21, 2022 on The AI Alignment Forum. This is an overview for advanced readers. Main post: Information Loss --> Basin flatness Summary: Inductive bias is related to, among other things: Basin flatness Which solution manifolds (manifolds of zero loss) are higher dimensional than others. This is closely related to "basin flatness", since each dimension of the manifold is a direction of zero curvature. In relation to basin flatness and manifold dimension: It is useful to consider the "behavioral gradients" ∇θf(θ,xi) for each input. Let G be the matrix of behavioral gradients. (The ith column of G is gi=∇θf(θ,xi)). We can show that dim(manifold)≤N−Rank(G). Rank(Hessian)=Rank(G). Flat basin ≈ Low-rank Hessian = Low-rank G ≈ High manifold dimension High manifold dimension ≈ Low-rank G = Linear dependence of behavioral gradients A case study in a very small neural network shows that "information loss" is a good qualitative interpretation of this linear dependence. Models that throw away enough information about the input in early layers are guaranteed to live on particularly high-dimensional manifolds. Precise bounds seem easily derivable and might be given in a future post. See the main post for details. In standard terminology, G is the Jacobian of the concatenation of all outputs, w.r.t. the parameters. N is the number of parameters in the model. See claims 1 and 2 here for a proof sketch. Proof sketch for Rank(Hessian)=Rank(G): span(g1,..,gk)⊥ is the set of directions in which the output is not first-order sensitive to parameter change. Its dimensionality is N−rank(G). At a local minimum, first-order sensitivity of behavior translates to second-order sensitivity of loss. So span(g1,..,gk)⊥ is the null space of the Hessian. So rank(Hessian)=N−(N−rank(G))=rank(G) There is an alternate proof going through the result Hessian=GGT. Thanks for listening. To help us out with The Nonlinear Library or to learn more, please visit nonlinear.org.

Welcome to The Nonlinear Library, where we use Text-to-Speech software to convert the best writing from the Rationalist and EA communities into audio. This is: Apply to the second iteration of the ML for Alignment Bootcamp (MLAB 2) in Berkeley [Aug 15 - Fri Sept 2], published by Buck on May 6, 2022 on The Effective Altruism Forum. Redwood Research is running another iteration of MLAB, our bootcamp aimed at helping people who are interested in AI alignment learn about machine learning, with a focus on ML skills and concepts that are relevant to doing the kinds of alignment research that we think seem most leveraged for reducing AI x-risk. We co-organized the last iteration of the bootcamp with Lightcone in January, and there were 28 participants. The program was rated highly (see below for more), and several participants are now working full-time on alignment. We expect to start on Aug 15 but might push it back or forward by a week depending on applicant availability. Apply here by May 27. We're expecting to have space for about 40 participants. We'll pay for housing, travel, and food, as well as salaries for the TAs. We're now accepting applications for participants and TAs. TAs are expected to either know this material already or have a month free before MLAB to study all the content. Last time the schedule was roughly the following: Prep work: Pytorch array programming Week 1: Pytorch, optimization Implement a renderer in pytorch, as an exercise in mathematical array programming Implement ResNet from scratch in pytorch, implementing all the layers from scratch and loading weights from a trained model. Implement interpretability techniques on the ResNet. Implement SGD and other local optimization algorithms, run remote hyperparameter searches on a simple architecture Implement a simple clone of some of Pytorch, with particular focus on the implementation of backpropagation (Optional) CUDA programming day–write various CUDA kernels, see how close to the performance of Pytorch's kernels you can get Week 2: Transformers Implement BERT from scratch, load weights from the real pretrained BERT Implement GPT-2, implement beam search Fine tune BERT on classification, fine-tune GPT-2 on some specific corpus Look at various interpretability techniques on GPT-2 Data-parallel training Week 3 Pipeline parallelism Tensor parallelism Deep RL (DQN, policy gradient) RL algorithms on language models More transformer interpretability (Optional) ELK day Week 4: Optional final projects week, Q&As with various alignment researchers This time, we'll probably have more systematic transformer interpretability content, because we've spent a lot of time since MLAB doing our own transformer interpretability research and have a bunch more opinions now. We might also have more systematic content on various relevant math. I'm also hoping that we'll be able to cover content more efficiently as a result of experience gained from running the program the first time. Past participants report that MLAB was time-consuming; we strongly recommend against trying to juggle other commitments concurrently. About 8 hours a day, 5 or 6 (if you participate in the optional day) days a week will be spent on pair programming, in addition to daily lectures and readings. There is a lot of content packed into each day; not everyone will finish every part of the curriculum. We aim to create a learning environment that is focused but not frantic; we'd rather have you understand the material deeply than finish 100% of the day's content. The program is aimed at people who are already strong programmers who are comfortable with about one year's worth of university level applied math (e.g. you should know what eigenvalues and eigenvectors of a matrix are, and you should know basic vector calculus; in this course you'll have to think about Jacobian matrices and make heavy use of tensor diagram notation, so you should be able to pick up both of those pretty fast). We expect that abo...

Welcome to The Nonlinear Library, where we use Text-to-Speech software to convert the best writing from the Rationalist and EA communities into audio. This is: Apply to the second iteration of the ML for Alignment Bootcamp (MLAB 2) in Berkeley [Aug 15 - Fri Sept 2], published by Buck Shlegeris on May 6, 2022 on The AI Alignment Forum. Redwood Research is running another iteration of MLAB, our bootcamp aimed at helping people who are interested in AI alignment learn about machine learning, with a focus on ML skills and concepts that are relevant to doing the kinds of alignment research that we think seem most leveraged for reducing AI x-risk. We co-organized the last iteration of the bootcamp with Lightcone in January, and there were 28 participants. The program was rated highly (see below for more), and several participants are now working full-time on alignment. We expect to start on Aug 15 but might push it back or forward by a week depending on applicant availability. Apply here by May 27. We're expecting to have space for about 40 participants. We'll pay for housing, travel, and food, as well as salaries for the TAs. We're now accepting applications for participants and TAs. TAs are expected to either know this material already or have a month free before MLAB to study all the content. Last time the schedule was roughly the following: Prep work: Pytorch array programming Week 1: Pytorch, optimization Implement a renderer in pytorch, as an exercise in mathematical array programming Implement ResNet from scratch in pytorch, implementing all the layers from scratch and loading weights from a trained model. Implement interpretability techniques on the ResNet. Implement SGD and other local optimization algorithms, run remote hyperparameter searches on a simple architecture Implement a simple clone of some of Pytorch, with particular focus on the implementation of backpropagation (Optional) CUDA programming day–write various CUDA kernels, see how close to the performance of Pytorch's kernels you can get Week 2: Transformers Implement BERT from scratch, load weights from the real pretrained BERT Implement GPT-2, implement beam search Fine tune BERT on classification, fine-tune GPT-2 on some specific corpus Look at various interpretability techniques on GPT-2 Data-parallel training Week 3 Pipeline parallelism Tensor parallelism Deep RL (DQN, policy gradient) RL algorithms on language models More transformer interpretability (Optional) ELK day Week 4: Optional final projects week, Q&As with various alignment researchers This time, we'll probably have more systematic transformer interpretability content, because we've spent a lot of time since MLAB doing our own transformer interpretability research and have a bunch more opinions now. We might also have more systematic content on various relevant math. I'm also hoping that we'll be able to cover content more efficiently as a result of experience gained from running the program the first time. Past participants report that MLAB was time-consuming; we strongly recommend against trying to juggle other commitments concurrently. About 8 hours a day, 5 or 6 (if you participate in the optional day) days a week will be spent on pair programming, in addition to daily lectures and readings. There is a lot of content packed into each day; not everyone will finish every part of the curriculum. We aim to create a learning environment that is focused but not frantic; we'd rather have you understand the material deeply than finish 100% of the day's content. The program is aimed at people who are already strong programmers who are comfortable with about one year's worth of university level applied math (e.g. you should know what eigenvalues and eigenvectors of a matrix are, and you should know basic vector calculus; in this course you'll have to think about Jacobian matrices and make heavy use of tensor diagram notation, so you should be able to pick up both of those pretty fast). We expect that...

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Welcome to The Nonlinear Library, where we use Text-to-Speech software to convert the best writing from the Rationalist and EA communities into audio. This is: 100 Tips for a Better Life, published by Ideopunk on LessWrong. Write a Review (Cross-posted from my blog) The other day I made an advice thread based on Jacobian's from last year! If you know a source for one of these, shout and I'll edit it in. Possessions 1. If you want to find out about people's opinions on a product, google reddit. You'll get real people arguing, as compared to the SEO'd Google results. 2. Some banks charge you $20 a month for an account, others charge you 0. If you're with one of the former, have a good explanation for what those $20 are buying. 3. Things you use for a significant fraction of your life (bed: 1/3rd, office-chair: 1/4th) are worth investing in. 4. “Where is the good knife?” If you're looking for your good X, you have bad Xs. Throw those out. 5. If your work is done on a computer, get a second monitor. Less time navigating between windows means more time for thinking. 6. Establish clear rules about when to throw out old junk. Once clear rules are established, junk will probably cease to be a problem. This is because any rule would be superior to our implicit rules (“keep this broken stereo for five years in case I learn how to fix it”). 7. Don't buy CDs for people. They have Spotify. Buy them merch from a band they like instead. It's more personal and the band gets more money. 8. When buying things, time and money trade-off against each other. If you're low on money, take more time to find deals. If you're low on time, stop looking for great deals and just buy things quickly online. Cooking 9. Steeping minutes: Green at 3, black at 4, herbal at 5. Good tea is that simple! 10. Food actually can be both cheap, healthy, tasty, and relatively quick to prepare. All it requires is a few hours one day to prepare many meals for the week. 11. Cooking pollutes the air. Opening windows for a few minutes after cooking can dramatically improve air quality. 12. Food taste can be made much more exciting through simple seasoning. It's also an opportunity for expression. Buy a few herbs and spices and experiment away. 13. When googling a recipe, precede it with ‘best'. You'll find better recipes. Productivity 14. Advanced search features are a fast way to create tighter search statements. For example: img html will return inferior results compared to: img html -w3 15. You can automate mundane computer tasks with Autohotkey (or AppleScript). If you keep doing a sequence “so simple a computer can do it”, make the computer do it. 16. Learn keyboard shortcuts. They're easy to learn and you'll get tasks done faster and easier. 17. Done is better than perfect. 18. Keep your desk and workspace bare. Treat every object as an imposition upon your attention, because it is. A workspace is not a place for storing things. It is a place for accomplishing things. 19. Reward yourself after completing challenges, even badly. Body 20. The 20-20-20 rule: Every 20 minutes of screenwork, look at a spot 20 feet away for 20 seconds. This will reduce eye strain and is easy to remember (or program reminders for). 21. Exercise (weightlifting) not only creates muscle mass, it also improves skeletal structure. Lift! 22. Exercise is the most important lifestyle intervention you can do. Even the bare minimum (15 minutes a week) has a huge impact. Start small. 23. (~This is not medical advice~). Don't waste money on multivitamins, they don't work. Vitamin D supplementation does seem to work, which is important because deficiency is common. 24. Phones have gotten heavier in the last decade and they're actually pretty hard on your wrists! Use a computer when it's an alternative or try to at least prop up your phone. Success 25. History remembers those who got to market first. Getting your creation out into the world is more important than getting it perfect. 26. Are you...

#deeplearning #backpropagation #simulation More and more systems are made differentiable, which means that accurate gradients of these systems' dynamics can be computed exactly. While this development has led to a lot of advances, there are also distinct situations where backpropagation can be a very bad idea. This paper characterizes a few such systems in the domain of iterated dynamical systems, often including some source of stochasticity, resulting in chaotic behavior. In these systems, it is often better to use black-box estimators for gradients than computing them exactly. OUTLINE: 0:00 - Foreword 1:15 - Intro & Overview 3:40 - Backpropagation through iterated systems 12:10 - Connection to the spectrum of the Jacobian 15:35 - The Reparameterization Trick 21:30 - Problems of reparameterization 26:35 - Example 1: Policy Learning in Simulation 33:05 - Example 2: Meta-Learning Optimizers 36:15 - Example 3: Disk packing 37:45 - Analysis of Jacobians 40:20 - What can be done? 45:40 - Just use Black-Box methods Paper: https://arxiv.org/abs/2111.05803 Abstract: Differentiable programming techniques are widely used in the community and are responsible for the machine learning renaissance of the past several decades. While these methods are powerful, they have limits. In this short report, we discuss a common chaos based failure mode which appears in a variety of differentiable circumstances, ranging from recurrent neural networks and numerical physics simulation to training learned optimizers. We trace this failure to the spectrum of the Jacobian of the system under study, and provide criteria for when a practitioner might expect this failure to spoil their differentiation based optimization algorithms. Authors: Luke Metz, C. Daniel Freeman, Samuel S. Schoenholz, Tal Kachman Links: TabNine Code Completion (Referral): http://bit.ly/tabnine-yannick YouTube: https://www.youtube.com/c/yannickilcher Twitter: https://twitter.com/ykilcher Discord: https://discord.gg/4H8xxDF BitChute: https://www.bitchute.com/channel/yann... LinkedIn: https://www.linkedin.com/in/ykilcher BiliBili: https://space.bilibili.com/2017636191 If you want to support me, the best thing to do is to share out the content :) If you want to support me financially (completely optional and voluntary, but a lot of people have asked for this): SubscribeStar: https://www.subscribestar.com/yannick... Patreon: https://www.patreon.com/yannickilcher Bitcoin (BTC): bc1q49lsw3q325tr58ygf8sudx2dqfguclvngvy2cq Ethereum (ETH): 0x7ad3513E3B8f66799f507Aa7874b1B0eBC7F85e2 Litecoin (LTC): LQW2TRyKYetVC8WjFkhpPhtpbDM4Vw7r9m Monero (XMR): 4ACL8AGrEo5hAir8A9CeVrW8pEauWvnp1WnSDZxW7tziCDLhZAGsgzhRQABDnFy8yuM9fWJDviJPHKRjV4FWt19CJZN9D4n

Zoltan, Jake and Jacobian go deep on the Sam Darnold to Carolina trade, the 2021 rookie class as a whole (identifying some favorite sleepers, fades and "flag plants", and answer some questions from listeners. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app Support this podcast: https://anchor.fm/tradingtablepodcast/support

Zoltan and Jacobian host the first two-man pod, where they discuss Kenny Golladay's future in New York (*cough* New Jersey), the Steelers WR room, and a rapid fire session on the other smaller signings from the second half of Free Agency. --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app Support this podcast: https://anchor.fm/tradingtablepodcast/support

In Episode 4, the Boys discuss the surprise start of freshman quarterback JaCobian Morgan and the loss to BC. The guys reference play-calling and discuss the anemic Syracuse offense. They also preview the Lousiville game, get into five star Dior Johnson decommiting from the basketball team, and some interesting hypotheticals on SU Football recruiting. As always, don't forget to leave us a five-star question on iTunes! leave us a five-star review with a question and we will answer it on the next podcast! And don't forget to follow us on Twitter @MarshallStPod44. Basketball preview coming next week. Go Orange!

Happy 25th Anniversary to Doctor Who! The Doctor and Ace for the party as are a Jacobian villian and Richard, Deflores and his Nazis, The Cyberleader and Cybermen, OldWho, NuWho, and @TheCityofJeff  gate crash the party to see what is what.

In this episode, I welcome David Weinraub! He has been involved in professional theater productions, musical theater, and rock-and-roll bands, and talks about how his involvement with art has changed throughout the years with various life seasons. Connect with David Weinraub: https://www.facebook.com/david.weinraub.5Artfully Told links: www.facebook.com/artfullytold | www.artfullytold.podbean.com | elevateartskc@gmail.comSchedule your podcast interview with Artfully Told! https://calendly.com/artfullytold/podcast-interviewArtist's Edge: The Mission of Artist’s EDGE is to raise the level of Business Intelligence, Life Skills and Emotional Intelligence for people who are committed to expressing their passions, their creativity, and their unique genius through their careers, helping them reach higher levels of success with ease. Click here to access all courses! Intro & Outro Music Credits:Bad Ideas (distressed) by Kevin MacLeodLink: https://incompetech.filmmusic.io/song/3412-bad-ideas-distressed-License: http://creativecommons.org/licenses/by/4.0/ SHOW NOTES:Episode 12 - David WeinraubLindsey Dinneen: Hello, and welcome to Artfully Told ,where we share true stories about meaningful encounters with art.[00:00:07] Krista: I think artists help people have different perspectives on every aspect of life.[00:00:13] Roman: All I can do is put my heart into the world.[00:00:15] Elizabeth: It doesn't have to be perfect the first time. It doesn't have to be perfect ever, really. I mean, as long as you, you're enjoying doing it and you're trying your best, that can be good enough.[00:00:23] Elna: Art is something that you can experience with your senses and that you just experience as, as so beautiful.[00:00:32] Lindsey Dinneen: Hello and welcome to another episode of Artfully Told. I'm Lindsey and I am so excited to have as my guest today, David Weinraub, and thank you so much, David, for joining me. I'm so delighted to speak with you today.[00:00:49] David Weinraub: Thank you so much for having me. I'm excited to participate.[00:00:53] Lindsey Dinneen: Absolutely. Well, I would love if you would start by sharing just a little bit about who you are and maybe some of your involvement in art.[00:01:01] David Weinraub: Sure. Well, my name is David. I am a child of the seventies and grew up playing music. That turned into a love of rock and theater. As I continued to grow and after college, I began pursuing a career as an actor and did that and was able to pay my bills for a few years and then found a part-time job that turned into a full-time job in an office that I really enjoyed, and realized I can still continue to do art no matter what. I could still play music, I could still act, but I could also--didn't have to pursue it as my full-time gig, and continued to act. I met my wife. We were the only two people with day jobs on a six night a week dinner theater show, and we dated, got married a few years later, had a kid, and then I kind of dropped out of the art world for a while.[00:01:55] I stopped performing when our son was born and I didn't get back to it until about three years ago, and I've been going nonstop ever since, and I love it. And I love that I can share with my family. I love that I can share it with the world, and I'm just having a great time continuing to make music and, and perform. So that's me in a reader's digest nutshell.[00:02:18]Lindsey Dinneen: Perfect. Yeah. I mean, I know that there are many, many layers to your stories of course, but that's great. I'm so glad you're back into it. And I love that you met your wife through that. That is wonderful.[00:02:29] David Weinraub: Yeah, no, we would be, it was a dinner theater. So, you know, you, you get a paycheck just for performing, but you make more money by waiting tables, and we had day jobs and weren't able to get down to the theater in time for the dinner service before the show. So we would hang out backstage. It would just be the two of us, and that's how we really bonded and fell in love. So the theater has been great for us in many, many ways.[00:02:53] Lindsey Dinneen: It sounds like it. That is awesome. Wonderful. Well, I'd love to hear a little bit about maybe some stories of times where art has impacted you, or even hear a little bit about, you know, the various projects that you're embarking on now.[00:03:06] David Weinraub: Sure. Well, I guess my love of theater started in college. I was a Shakespeare fiend. I was an English major and I loved reading Shakespeare and analyzing Shakespeare, talking about it, and then my senior year, they were going to be doing "Henry the 4th," parts one and two in their entirety in the spring. And I decided in the fall, well, since they're doing it in the spring, I should audition. So they think I'm interested and then I can be a spear carrier, a soldier. And so I can just say I acted in one Shakespeare play. And I auditioned in the fall for a show called the "Prince of Homburg," which is a 16th century German piece very similar to the themes of "Henry the 4th."[00:03:52]So a young upstart Prince doesn't really know how to become a leader and goofs off a lot, but then becomes a leader in his own right. And, I, I got cast in a pretty good role and I loved it. And, then from that point forward, all of my focus turned towards theater. I was able to complete a theater minor in an entire year before graduation. And then right after college, I just kept going with it. So it started with the love of Shakespeare. I worked for the Annapolis Shakespeare--I think it's under new management now--but the Annapolis Shakespeare Company after college. I did some modern dramas and black box theaters in downtown DC, which no longer exist.[00:04:34] And then, I was auditioning a lot in New York while performing in DC and, then, fell into the dinner theater, 'cause I realized if I wanted to make money, I couldn't just do Shakespeare or weird modern dramas. The money was in musicals. And I played in bands in high school, in college as well. So I sang a little bit, but I started taking voice lessons and I got cast in a production of "Jesus Christ Superstar" as Pilot in the Giant Theater in Frederick, Maryland.[00:05:07] And, then I, I just kept doing musicals for awhile. And then I met Catherine and we got married. We worked together on four shows in dinner theater and then did a few more after we got married in community theater in the Northern Virginia area. And then our son was born, and that was amazing, but we dropped out of performing in theater and started attending theater. We became a Shakespeare Theater subscribers and Kennedy Center subscribers. And that was just amazing as well, just to be able to enjoy something from the other side, which when you're performing six nights a week, you don't have as much time to see.[00:05:42]I thought I still needed some sort of creative outlet when he was little, and then a friend of mine who I worked with who was in a band, asked me if I wanted to join his band. And the good thing about playing music--you can kind of take gigs when they become available to you, but also you can rehearse when it works for the whole band. All of us had day jobs. We were just, we called ourselves a bunch of old dudes who just got together and played when we could. And, we were getting more gigs, playing bars and stuff than we were able to take, because people travel for irregular job work and the children's calendars, you know, we had sports for our kids and stuff like that.[00:06:19] And we just played when we could. The band was called the Black Shag Sherpas, and I think they still have a website. I'm not sure if there are any original members left in that band or if they're still playing, but they played some great funky, weird rock, jazz hybrid music along with some covers. So that was fun. So I never stepped away from art or music. I just found an outlet. And then how I got back into it-- the dinner theater where Catherine and I had met closed down and they had a reunion picnic. So people who had worked there from the time it opened in the mid-seventies, till the time it shut down in 2016, everyone was invited.[00:07:06] And, I started talking to friends from the theater who I had not seen in 13 years, and I was telling them about playing in bands and they said, "Oh, you play in bands. Do you think you could get a band together to play the 'Rocky Horror Show?'" And I said, "I think I can." And that is how I got pulled into music, directing the "Rocky Horror Show" for the Workhouse Arts Theater in Lorton. And that's what started my journey into theater nonstop. Once again, began with the "Rocky Horror Show" in 2016.[00:07:39]Lindsey Dinneen:  Wow. That is a really interesting trajectory. I mean, you, you have dabbled in all--well, not dabbled, you're a professional; I didn't mean it like that--but you have gotten to experience so many different outlets for your art. And I love the fact that even if you couldn't do what you had originally started doing throughout your entire career, you've actually helped yourself grow as an artist. Would you say that? That, you know, because you've been able to do so many different things?[00:08:06] David Weinraub: Definitely! I mean, just sitting back as, as an active participant, as an observer, you learn so much from watching others and not, not that I would ever think, "Oh, I can do that better than so and so," 'cause I never thought that, but you, you can enjoy what they are doing and you can learn from the things you are seeing.[00:08:25]Lindsey Dinneen: Yes. Absolutely. Well, do you have any specific things that come to mind as inspiration for maybe a new direction that you took, or just an encounter with art that may have really impacted you and helped you on this trajectory?[00:08:40] David Weinraub: One of the more recent things I worked on, with one of your previous guests, was a production of "Bloody Bloody Andrew Jackson" for Dominion Stage, which is a very difficult piece. Andrew Jackson is a very divisive figure, especially nowadays. He was a horrible, horrible man who grew the size of the United States a quintuple fold from what it was by doing awful, awful things, which were admired at the time by many. His story was turned into a rock musical before "Hamilton" and it ran on Broadway very briefly. It was not well received.[00:09:19] But, working with Dani Guy as the director, when she asked me to be involved, I wanted to, because I loved the music. It is just dirty rock and roll, which I love. And also the band gets to be on stage and interact with the other performers. So that's always fun. I was able to put together--I call them the best band in the world--'cause they are. And, we all listened to one another when we play and we listened to what's going on onstage. So if you show up night one, it might sound a little different than night two if someone plays something or acts in a slightly different way, we're going to react to it, the band or actors too. But working with this collaborative group of people, we made something really, really special and very poignant. And, you know, it sucks that there is no venue for live theater right now, nor should there be 'til it is safe to return to it. But to go out on a note like that was, you know, at the end of February, was not a bad thing to go out on it, to have in my recent memory.[00:10:20]Lindsey Dinneen: Yeah. So Dani did share a little bit about her experience with that too. And it sounds like it was just an incredible experience for everyone involved and brought out a lot of conversation about art. I mean, did--what were the reactions that you kind of encountered personally, positive or negative?[00:10:39]David Weinraub: All positive in terms of, "This was a powerful piece." No one thought that we were doing anything wrong, who I spoke to. You know, we were pointing out, through beauty, we were able to point out some of the horrible things that have happened, and are continuing to happen, in this world, you know, through the power of performance, through the power of rock and roll, and dance and, and movement. I'm struggling to define what it was 'cause it is such a strange piece. But it was so beautiful the way it, it all came together. Does that make any sense?[00:11:12] Lindsey Dinneen: Absolutely. Yes. Yeah. She, she shared about getting some mixed reactions and how she, as the director, wanted to help everyone kind of navigate through some criticism that, you know, all art gets. I mean, we all have dealt with that at some point, and her outlook was so, so amazing to me because she just--I love her approach of using people's criticism to really think through a different perspective. And I think that's a really wonderful thing that she brought to that production in particular. So I know it's kind of, we're kind of in a weird place right now, but do you have anything coming up that you're excited about? Or how, how are you still able to kind of express yourself and be artful in these crazy days?[00:12:01] David Weinraub: Well, the amazing thing about artists is they always find a way to create, regardless of the circumstances. And I have many friends who have created online venues for us to do so. I've worked with a landless theater company as an actor. I did a production of "Puffs" with them last year, which is a "Harry Potter" spoof, and they are going to be releasing very soon some virtual performances. We recorded one, called "The Walking Fred," which is a spoof of "The Walking Dead," as told through the prism of the Flintstones.[00:12:41]So, we recorded it via Zoom and they're putting, you know, special effects on it to make it look like we're, we all have the same backgrounds and that sort of thing. So hopefully that will be coming out soon. So that was a nice outlet to be able to act. And then, I have a friend, who is an amazing actor-singer, and he's also, he, hosts a number of drag brunches and drag bingos as "Lips," and Lips has a new show, which is a virtual drag, a talent show, and he asked me to work on some songs for it. So I was able to write some songs and I, I'm a dirty rock and roll player. I like playing live with groups of people. You know, I will play one instrument at a time, with groups of people, but by doing it this way, and him asking me to write something, I had to learn how to use Garage Band that was able to record myself, you know, multi-track it.[00:13:34] So I'm playing all the instruments for, for this piece. So that should be out soon as well. So "Lips Virtual Drag Cabaret." So I'm, I'm finding things to keep me busy. I'm taking advantage of all that, that others are creating as well. Now that I have more time in the evenings, I'm watching it all. You know, there are so many people putting out--they're doing Zoom play readings. I was able to work with Dani again, and this was just for fun. I don't believe it was recorded, but as a stage reading of the "Duchess of Malfi," which is an amazing, Chekhovian, very dark drama. I don't think it was meant to be a comedy, but it kind of turned into one looking at it through 21st century prism. But we had a lot of fun just reading that. So there, there are always outlets to do things.[00:14:19]Lindsey Dinneen:  Yeah. Now you mentioned writing songs. Was that something you had done before, or is that a little bit newer to you?[00:14:26] David Weinraub: I have written songs for rock bands before, but I'd never recorded in a studio, you know, with engineers hanging around and stuff. But I never pursued it as something that I wanted to get out there and publish. The Black Shag Sherpas, which I mentioned before, we put out a four-song EP, which you could probably find online. But ever since then, since I got back into theater, I really haven't done any writing. So this was a nice outlet to do it once again. So this was just an, a fun, goofy, 1970s, disco rock. I was told to think of superheroes. So I was thinking of, you know, a combination of the "Wonder Woman" theme and, you know, seventies disco era Rolling Stones. And I put that together in my head to come up with a, with a theme song for them.[00:15:13]Lindsey Dinneen: Oh, neat. Well, that sounds incredible. I'm sure that's going to be great. Yeah, that's really neat. So I'm just curious, how has--or if, if it hasn't, that's fine too--but yeah, I guess more accurately, has becoming a father changed the way that you view art or create art?[00:15:33] David Weinraub: Definitely. I'm always looking at things through, through my son's eyes now. Is this something that I think he would appreciate? Not that it always--I don't expect a, he's now 16 years old, so I don't expect him to like everything I like, and he wouldn't be a cool teenager if he did-- but, the answer is yes, it forces you to see things in a different way. And now thinking, like going to museums with him when he was very young, you know, we might take advantage of looking at an impressionist painting for the first time, but seeing it through the eyes of a three-year-old in a stroller, totally changes the way you take something in.[00:16:08] And not that he understood the brushstrokes or the whole backstory of the impressionist or anything, and he just appreciated the art for what it was, you know, to him and seeing something with that freshness without having the 20-plus years of your experience on top of it lends you to appreciate it in a new way, totally different take on this. I don't know if you've ever watched the television show called "Community" from 10 years ago?[00:16:33] Lindsey Dinneen: Yeah, I have. I just actually recently got into it. What a fun show.[00:16:37] David Weinraub: It's a great show and I loved it when it first aired, but he was too young to watch it then. So, we were watching it together now from the beginning and something simple and easily accessible on Netflix, just watching it through his eyes and all of the, the pop culture references that it makes, you know, discussing them with him. And then going back if they talked about, well, you know, all that makes a joke about a Martin Scorsese film, then we can pause and talk about Martin Scorsese, and then we can go back and watch a Scorsese film together. You know, a "Good Fellows" the next day. So, always looking at things through new eyes is, is, you know, through someone else's eyes and someone else's experience--it's convenient when they're in the same house as you, so you can discuss it too.[00:17:21]Lindsey Dinneen: That's a great perspective. And it's, it's so interesting to hear how things change, you know, when you are getting the opportunity to experience them through somebody else's eyes, or with somebody who might also not share your opinion, and, and get to really explore that a bit.[00:17:39] David Weinraub: Yeah, definitely. And while my son has seen many of the shows that I've worked on in the last three years, there are some that he has expressed absolutely no interest in at all once I've told them about it. And, I did a very strange show at the DC Fringe Festival last year, as an actor. It was a show called "Inferno," which was a modern take on Dante's "Inferno" as a musical. It is not for everybody. It, it won like some Best of Fringe Audience Awards. But I, I didn't think that that was something--I told him about it-- and he said, "No, I'm not interested in something that weird at all." And he did not see it, but that's okay.[00:18:18] Lindsey Dinneen: It is okay. Well, and is he interested in being involved? Is he involved in the arts himself or does he just enjoy experiencing it or what does he like?[00:18:27] David Weinraub: He is a very talented drummer. I'm, I'm so jealous. I, I, that's the one thing I never took lessons in, so I don't really know how to play drums. I can fake my way through it, but he is really, really good and takes lessons. And, he started the FaceTime lessons during this time with his teacher, since you can't do it in person, but, yeah, so he, he has some musical ability. He does not like performing in front of people though. He's finishing up his sophomore year in high school. He does stage crew, and he has designed some lighting grids for one of the shows at his school, but he has no desire to act or to, you know, be in marching band or anything like that. And as long as he's enjoying himself playing drums, I want him to keep playing drums. But it's not something that we force, nor do we expect him to do anything just because we tell him he has to.[00:19:23] Lindsey Dinneen: Yeah. Well, he's forging his own path. I love it. Well, thank you. That was so interesting to hear about your life's trajectory and also the different, really unique experiences that you've had and the ways that they've helped you grow and adopt as an artist. And so thank you for sharing about that.  That is really neat what you've been able to do.[00:19:47] David Weinraub: You're very welcome. Thank you for having me.[00:19:50] Lindsey Dinneen: Yeah. Well, if it's okay with you, I always like to ask my guests a couple of questions, completely subjective, just about your views on a couple of things related to art, is that okay?[00:20:00] David Weinraub: Sure.[00:20:01]Lindsey Dinneen: Great. Okay. So the first thing is, how do you personally define art or what is art to you?[00:20:10] David Weinraub: That's not an easy question. I personally, I define art as anything that can enhance an emotion. I can go outside and I can see, you know, a turtle on my back deck who somehow found its way, you know, up the stairs to onto the porch. And, I find beauty in that and therefore that is art. To me, it elicits an emotion when it happens. Some people say that's where they see God in the world. And, I think in some ways, God and art are synonymous.[00:20:54]Lindsey Dinneen: Yeah. I love that answer. That's a pretty unique approach to it that I've heard so far. And I, I like that perspective a lot. Thank you for that. So the second question I have is, what do you think is the most important role of an artist?[00:21:12] David Weinraub: The most important role of an artist is, is to bring out that emotion. This is going to sound really cheesy, but the biggest compliment, I, I--the happiest I've ever been after getting a compliment after a show was when I was music directing "Rock of Ages," which is a very silly show, 1980s rock music. The band, again, is on stage the whole time, just as in "Bloody Bloody Andrew Jackson." The show doesn't have much of a point though, but, if you had seen the show on Broadway, you might've had a fantastic time. If you had seen the show at the Workhouse, we made it look like a real bar and it was a small intimate space. The band was right in the audience's face and yes, we were very well rehearsed and we knew our parts, but we played from the heart. We didn't necessarily play every single note exactly as written. It was not slick. And so that's what someone said to me after the show. That moved me so much because that band was, was reacting to the crowd and reacting to the actors on stage. We weren't just playing, you know, it didn't sound like a recording to them. And, that is what an artist is supposed to do. We're supposed to elicit an emotion. And even if it's, you know, playing an REO Speedwagon song, if it works, it works.[00:22:32]Lindsey Dinneen: Perfect. Okay. And then my final question is, and I'll explain my terms a little bit, but do you think that art should be inclusive or exclusive? And what I mean by that is inclusive referring to an artist who shares a little bit about their work with whoever their audience is. So if that's a dancer, perhaps they share what inspired the choreography, or if that's a painter, maybe it's a title or a brief description. Versus exclusive kind of referring to the artist puts their work out there and then leaves it open to interpretation.[00:23:11]David Weinraub:   I think art is always open to interpretation. However, I think that art should be inclusive. I don't think the point of an artist is to say only a few people can get this. If you don't understand what I'm doing, you are not a smart person. I don't think that's fair. I don't think that's right. I think that art should be made for everybody. Having said that, having participated in that reading of the "Duchess of Malfi," I'm not sure if you could put a production of the "Duchess of Malfi" on stage right now and expect someone who knows nothing about Jacobian-era language to understand every single moment of it. So you have to figure out a way to make that accessible to anyone who might show up. So it is on the, the artist's shoulders to, yes, allow for some interpretation of their art, but also to, to make it accessible to those who may not understand a hundred percent of it. Or like pausing "Community" when I'm watching it with my son, to explain the cultural references.[00:24:18]Lindsey Dinneen: Yeah, because it enriches the experience. Otherwise it would just go flying over and, you know, not be a point of education and conversation. That makes complete sense. Yeah. Love it. Well, thank you again so very much, David, for joining me. I really appreciate it. And I, am very passionate about art and about sharing it, and I'm very grateful for people like you, who do take what they have and what they've developed, their different skill sets over the years, and then they do share that with the world and they give back. And I think, when you choose to do that, you truly make the world a better, more beautiful place. So on behalf of myself, thank you for sharing art with the world. I know I appreciate it.[00:25:05] David Weinraub: And thank you, Lindsey, for bringing it to people's attention. This is a great forum. So thank you again for having me on.[00:25:13] Lindsey Dinneen: Of course. And if people want to stay in touch with you, maybe find out about some of your upcoming productions, whether they're, you know, in person or online, is there a way for them to do that?[00:25:26]David Weinraub: So the best way to just follow me on Facebook, just my name, David Weinraub. I don't have any other social media outlets right now.[00:25:34] Lindsey Dinneen: Perfect. Well, thank you again, David, for being here. Thank you to all of our listeners for joining us again. And if you're feeling as inspired as I am right now, I would love for you to share this episode with a friend or two, and I will catch you next time.[00:25:53] If you have a story to share with us, we would love that so much. And I hope your day has been Artfully Told.[00:26:04] Hey there, Artfully Told listeners. I wanted to share a really amazing resource with you that I think you will find invaluable. This website is called Artists' Edge. The mission of Artists' Edge is to raise the level of business intelligence, life skills, and emotional intelligence for people who are committed to expressing their passions, creativity, and unique genius through their careers, helping them reach higher levels of success with ease. Artists' Edge is the education arm of Deborah Russell Coaching. And she is an awesome person who uses all of her business background and skills to really assist artists become who they want to be. She has a bunch of different products and courses that you can go through as well as personalized coaching. If you're a wannabe artist that wants to turn their passion into a career, or is an already established artist that wants to take their career to the next level, she is the person to talk to you about this. So please follow the link in my comments and show notes.

On this edition of the Geaux247 Podcast, Billy Embody and Shea Dixon break down 2020 Alexandria (La.) defensive tackle Jacobian Guillory committing to LSU over Alabama. We also break down the recruiting impact of the win, two key commits shutting down their recruitments and more on the recruiting front. Learn more about your ad choices. Visit megaphone.fm/adchoices

On this edition of the Geaux247 Podcast, we break down where things stand with LSU's official visitors and four-star wide receiver Koy Moore after Elite Camp. Learn more about your ad choices. Visit megaphone.fm/adchoices

Content Warning: We cover the story of Dinah in this episode, which involves a sexual assault. Shanah Tovah, Theophiloi, and welcome back to what we're pretty sure is the world's only Bible podcast! We're kicking off 5779 with the third part of our increasingly unwieldy discussion of Genesis. This week, the Lentil Stew Boys are back for hijinx as we cover the lives of Jacob and Esau, and give you a shofar performance that critics are already hailing as "well-intentioned." It is both our sexiest and most pro wrestling heavy episode yet, and we're as surprised by that as you are. Topics of discussion: Our wishes for a sweet Rosh Hashanah, Jacob's invention of cosplay, situations in which literally lying to your blind father about God is totally fine, conservation of blessings, a Jacobian installment of Benito's Anthroponomastics Corner, ordinary eyes, quite a few trips to the bone zone, animal husbandry and sympathetic magic, sympathetic sheep magic, Rachel's 11, whether or not the Holy Trinity tapped, the Biblical version of Death Wish meets Death Wish III. Hymnal: "Stairway to Heaven" by Led Zeppelin Offertory: If you enjoy the show, head to ko-fi.com/apocrypals and send us a love offering! We absolutely appreciate it!

A Tru Lady,J RIch, and Jacobian have an interesting conversation about Kanye West, Ja Rule influence, kissing during sex and more. CLick Play spillinthetea.com

Jacobian and X take A Tru Lady down a rabbit hole of memories! Worst ass whoopins, worst struggle meals, Takashi vs the Game, Neyo childish ass and so much more. Click play cause the trio is definitely with the shits. spillinthetea.com

This week on Bay Area Ventures I speak with my long-time colleague and good friend Erik Jones, Founder and CEO of Jacobian Engineering of Oakland California. Jacobian Engineering is an IT infrastructure and software development consultancy specializing in cybersecurity, HiTrust compliance, enterprise cloud hosting, 24/7 network monitoring and custom software development for SMB, enterprise, healthcare, e-commerce and nonprofit organizationsErik is a tech genius having developed sophisticated airborne and shipborne electronics for the US Department of Defense, Lawrence Livermore National Laboratories and numerous aerospace clients. He was an early employee of mine at my first startup DML Associates of Marin County, California where he worked on enterprise software development, database administration and IT infrastructure architecture and deployment. His clients included Microsoft, Sutter Health, Hewlett-Packard and BHP Billiton to name a few. Erik was one of my first hires when I was COO at Inflection and he grew into the role of VP Engineering along the way. Erik built Inflection’s e-commerce engine that supported dozens of consumer website supporting up to 60Million unique visitors per day.If cyber security is a concern for your business, especially in healthcare, Erik and his team offer certified HiTrust audits and most of Jacobian’s employees are CISSP, AWS Solutions Architect, Stanford Advanced Security and HCISPP certified.Erik was born and raised in the Bay Area and became engaged with technology at the age of 7. Before graduating from high school he was managing the network infrastructure for a division of a multinational oil services company. He worked for me full time while pursuing his Electrical Engineering degree at the University of California, Davis, being his class valedictorian. He led Inflection’s IT team while the company was growing 15-25% month over month for over three years ultimately leading to a $100M sale to Ancestry.com. Along the way he defended Inflection from cyber-attacks by Russian, Chinese and Romanian cyber-criminals. Simultaneously he was building Jacobean engineering to its current state. Listen in to learn if and when he ever sleeps.Erik is a serial entrepreneur, Silicon Valley veteran and is uniquely qualified to help you understand the Bay Area Way of Business.For more information on Erik go to www.jacobianengineering.com.

We investigate a small piece of area in a 2D region. We justify pictorially, the factor of r in the form dA = r dr theta. The Jacobian determinant is given for circular polars, which is then shown to yield r as the appropriate factor in the area dA.

Herb Gross illustrates how the Jacobian arises when changing coordinates in order to calculate a double integral.

Lecture by Professor Oussama Khatib for the Stanford Computer Science Department (CS223a). Professor Khatib shows a short video on Mobile Robots: Automatic Parallel Parking, he then finishes the lecture on the Kinematic Singularity and the Jacobian.

Lecture by Professor Oussama Khatib for the Stanford Computer Science Department (CS223a). Professor Khatib shows a short video on a robot playing beach volleyball, then continues where he left off on The Jacobian.

This lecture is based on joint work in progress with H.Derksen and J.Weyman. We obtain a far-reaching generalization of classical Bernstein-Gelfand-Ponomarev reflection functors playing a fundamental role in the theory of quiver representations. These functors are defined only at a source or a sink of the quiver in question. We introduce a class of quivers with relations of a special kind given by non-commutative analogs of Jacobian ideals in the path algebra. We then define the mutations at arbitrary vertices for these quivers and their representations. If the vertex in question is a source or a sink, our mutations specialize to reflection functors. The motivations for this work come from several sources: superpotentials in physics, Calabi-Yau algebras, cluster algebras. We will keep the exposition elementary, with all necessary background explained from scratch.