Rajarshi Bhattacharjee @_rajarshiB
CS PhD student at UMass Amherst. Interested in theoretical computer science and machine learning. rbhattacharj.github.io Amherst Joined June 2009-
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This is the scene where Linkin Park pulled a sample and transformed it into one of their biggest hits, “Faint” (2003)
Subrahmanyan Chandrasekhar, the great astrophysicist, showed humility and curiosity in his research. In 1967, at age ~57, he wrote to a 25-year-old Stephen Hawking, asking for guidance on the math behind Hawking’s work on cosmological singularities. 1/
Claim: gpt-5-pro can prove new interesting mathematics. Proof: I took a convex optimization paper with a clean open problem in it and asked gpt-5-pro to work on it. It proved a better bound than what is in the paper, and I checked the proof it's correct. Details below.
Many 20th century systems will melt down in a low-trust, high-tech environment. Fraud rates will just get out of control. We’ll need to rebuild those systems with cryptography. Digital signatures are much harder to fake than signatures.
Many 20th century systems will melt down in a low-trust, high-tech environment. Fraud rates will just get out of control. We’ll need to rebuild those systems with cryptography. Digital signatures are much harder to fake than signatures.
I underestimated Twitter. I did not expect anyone to post that Terence Tao is stealing math research jobs from hard working Americans.
A fourth problem on FrontierMath Tier 4 has been solved by AI! Written by Dan Romik, it had won our prize for the best submission in the number theory category.
AGI is here and has started murdering people
This is a really great point and something I totally forgot about. I've been often thinking there may be future optimization algorithms that may deviate from SGD or be something of a hybrid approach. However if you keep stacking parameters local minima are less of an enemy
The is diabolical... a Python object that hallucinates method implementations on demand any time you call them, using my LLM Python library github.com/awwaiid/gremllm
Prompt Theory (Made with Veo 3) What if AI-generated characters refused to believe they were AI-generated?
“As late as the 1980s it was widely believed that babies do not feel pain.” marginalrevolution.com/marginalrevolu…
I resigned from xAI tonight. It makes me very sad, but was the right thing to do -- and here's why. xAI told me I either had to delete the post quoted below, or face being fired. After reviewing everything and thinking a lot, I've decided that I'm not going to delete the post…
I resigned from xAI tonight. It makes me very sad, but was the right thing to do -- and here's why. xAI told me I either had to delete the post quoted below, or face being fired. After reviewing everything and thinking a lot, I've decided that I'm not going to delete the post…
This is an extraordinary photo of some of the greatest names of Indian science together, taken in Kolkata in perhaps the early 1930s. It has appeared today in The Daily Star, as part of an article on Satyendra Nath Bose by Prof Kamrul Hassan of Dhaka University.
QR algorithm is a gem of numerical algebra: iterative QR decomposition converges to a triangular matrix. Converges to a diagonal matrix for symmetric inputs. en.wikipedia.org/wiki/QR_algori…
Oxfam joins the display of mindless illiteracy with which leftist activists discuss impact of the British Raj. In a report called “Takers not Makers”, they claim that imperialist Britain “extracted” 85 tr $ from India, adding for drama, “enough to carpet London with 50£ notes”.
If you’re a guy in your early 20s, learn linear algebra. Go into debt if you have to
Eigenvalues are amazing. (Please like if you can see this.)
damn I’m tryna get rich enough to do shit like this casually what the hell man lmao
the electricity in your walls comes from turbo generators rotating at around 3000RPM. “about”, because it drifts around a bit. the actual frequencies are logged in power-grid frequency databases which are available to the public online. you can often pick up the ~50Hz hum in the…
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