Arash Sarshar
@sarshar.dev
CS Assistant Prof @ CSU Long Beach
Interested in probabilistic modeling
Interested in probabilistic modeling
Reposted by Arash Sarshar
Jensen's inequality gives the difference between the average value of a convex function φ, and its value at the center, where both “average” and “center” are defined in terms of some distribution p_X.
When the function φ is flat, or the distribution is narrow, they agree.
When the function φ is flat, or the distribution is narrow, they agree.
May 2, 2025 at 7:28 PM
Jensen's inequality gives the difference between the average value of a convex function φ, and its value at the center, where both “average” and “center” are defined in terms of some distribution p_X.
When the function φ is flat, or the distribution is narrow, they agree.
When the function φ is flat, or the distribution is narrow, they agree.
- No thank you; I already got the image that I wanted.
December 21, 2024 at 11:09 PM
- No thank you; I already got the image that I wanted.
No gpu flops left for visualization.
December 19, 2024 at 10:00 PM
No gpu flops left for visualization.
Reposted by Arash Sarshar
Entropy is one of those formulas that many of us learn, swallow whole, and even use regularly without really understanding.
(E.g., where does that “log” come from? Are there other possible formulas?)
Yet there's an intuitive & almost inevitable way to arrive at this expression.
(E.g., where does that “log” come from? Are there other possible formulas?)
Yet there's an intuitive & almost inevitable way to arrive at this expression.
December 9, 2024 at 10:44 PM
Entropy is one of those formulas that many of us learn, swallow whole, and even use regularly without really understanding.
(E.g., where does that “log” come from? Are there other possible formulas?)
Yet there's an intuitive & almost inevitable way to arrive at this expression.
(E.g., where does that “log” come from? Are there other possible formulas?)
Yet there's an intuitive & almost inevitable way to arrive at this expression.
Things fall apart, the center can not hold, a broken Monte Carlo sampler is loosened upon the world 🫠
December 6, 2024 at 8:01 AM
Things fall apart, the center can not hold, a broken Monte Carlo sampler is loosened upon the world 🫠
November 29, 2024 at 8:41 AM
If you refer to Gaussian process uncertainty plots as “sausage plots” we’re going to have a beef with each other 🥁 #turkeyDay
November 28, 2024 at 7:28 PM
If you refer to Gaussian process uncertainty plots as “sausage plots” we’re going to have a beef with each other 🥁 #turkeyDay
Reading @keenancrane.bsky.social MCMC slides, I bumped into this fitting portrait of "the curse of dimensionality." Reminiscent of Disco Elysium's psyche skills.
November 24, 2024 at 6:00 AM
Reading @keenancrane.bsky.social MCMC slides, I bumped into this fitting portrait of "the curse of dimensionality." Reminiscent of Disco Elysium's psyche skills.