AI agents
Autonomous research agents can now generate, code and backtest their own trading factors. This paper asks the question that matters more than any single discovery — can you trust the process that found it?
arXiv:2609.00731
Sports analytics
Turning a contest's win probabilities back into competitor strength has been computationally impractical at scale for correlated performances — this method does it for a million alternatives at once, and does it fast.
arXiv:2609.01133
Quant + trading
A portfolio can look safe on a return basis and still become extraordinarily expensive to exit. Illiquidity-at-Risk gives that danger its own tail-risk number — and finds it spikes in ways continuous models miss entirely.
arXiv:2609.00943
ML systems
A quality-adjusted price index built from 21,000 AI pricing observations finds inference costs falling seven times faster than the standard method suggests — and, measured per completed task, not falling at all.
arXiv:2608.29843
AI agents
Ask a language model to import a package that doesn't exist or implement an algorithm that violates a proven theorem, and it will usually try anyway. A new benchmark measures exactly how often — and how rarely models refuse instead.
arXiv:2609.03267
AI agents
SimSkill never touches its own weights. It gets better at traffic simulation purely by inventing its own practice tasks, verifying its own attempts, and filing what works into memory — a self-improvement loop with no fine-tuning in sight.
arXiv:2609.03753
Quant + trading
A generative model can produce an implied volatility surface that looks statistically flawless and is still financially worthless. This paper maps the line between the two directly inside the model's latent space.
arXiv:2609.00332
Forecasting
WeatherNext 3 skips the traditional data-assimilation step and forecasts straight from raw satellite observations, updating every hour instead of every six — a genuine architecture change with commercial reach far beyond meteorology.
arXiv:2609.03582
Practice
Anthropic, Grab and Meta each shipped infrastructure work this week that, read together, sketches the early blueprint for running autonomous AI agents safely inside a real company.
3 papers
Quant + trading
A maturity-aware graph model turns a tiny forecasting edge into a smooth, near-market-neutral return stream from commodity calendar spreads — correlation with the S&P 500 of about minus two-hundredths.
arXiv:2606.25811
Uncertainty
The standard ways we grade a model's confidence can be not just unhelpful but actively misleading — and the fix is to stop grading the forecast and start grading the decision it enables.
arXiv:2606.26990
Quant + trading
In fast markets a mid-price signal decays in microseconds, so latency is part of the strategy — not an implementation detail. "Best model" is meaningless without a time budget.
arXiv:2606.25986
Practice
Correctness, infrastructure, culture. Jane Street, Slack and The Guardian each pulled a different lever this month — and together they show where lasting advantage hides when demos get cheap.
3 papers
Practice
Three teams — Cloudflare, Netflix and Airbnb — on three faces of staying reliable at scale: how to undo a half-finished job, schedule a flood of work fairly, and push changes to thousands of servers without breaking any.
3 papers
Uncertainty
Traditional weather uncertainty methods claim ninety percent confidence on rainfall but catch the truth only a third of the time. A distribution-free fix lands where forecasting begins.
arXiv:2606.27001
Quant + trading
Point a pretrained time-series model at the stock market and it wins almost every contest. Look closer and the gaps are a fraction of a single bit — a ranking victory that carries no edge you could trade.
arXiv:2606.27100
Forecasting
A retailer may need a billion product-by-store forecasts a week. This method predicts only the smooth 0.3% of them, then splits the rest with loaded dice so everything adds up.
arXiv:2606.26774
Forecasting
A line of algebra can match forecasting architectures thousands of times its size — if you stop scaling the model and start tuning the preprocessing nobody bothers to touch.
arXiv:2606.27282
ML systems
Language models shatter numbers into meaningless fragments before they ever reason about them. Fix that one interface — not the model — and forecasting accuracy jumps.
OpenReview preprint
Sports analytics
A camera that physically follows a ball in flight, cancels its travel, and reads the spin off the surface — live, on the regular ball, at 750 measurements a second.
arXiv preprint
Forecasting
A popular way of training trajectory predictors quietly corrupts the probabilities a self-driving planner relies on. The fix needs no retraining — just a clearer view of what went wrong.
arXiv:2606.26424
Quant + trading
Neural networks can beat the decades-old workhorses of bond forecasting — but this study insists on the harder test, asking whether a better forecast actually makes a better trade.
arXiv:2606.26815
Quant + trading
A machine-learning system can be genuinely right about Bitcoin's next move and still lose almost everything — because the cost of acting on each small correct call exceeds the call itself.
arXiv:2606.00060
Sports analytics
One reusable embedding of every on-ball event, learned BERT-style with the player names stripped out — and reused for expected goals, action value, and scouting.
arXiv:2606.09327
Sports analytics
A sixty-year-old chess-rating trick turns out to be a special case of a clean statistical principle — one that extends naturally to draws, scorelines, and whole-field rankings, with fairness baked in.
arXiv:2604.09143
AI agents
Today's AI coding agents close ten-minute tickets with ease. Give them a forty-hour project — port Kubernetes, clone Slack — and the best of them fail seven times out of ten.
arXiv:2606.07682
Uncertainty
AI weather models are brilliant on average and quietly overconfident at the tails. A cheap, distribution-free correction makes their stated uncertainty match reality.
arXiv:2606.19642
Practice
From AIs that talk to each other in shorthand to a four-line fix after a six-week bug hunt — nine recent reads, and the threads that tie them together.
9 papers
ML systems
For decades feeds answered one question — of everything that exists, what should we show you? This vision argues the next question is what should we make for you.
arXiv:2304.03516
ML systems
If the reader is another AI, why write in tidy English at all? A new method compresses text into dense, alien symbols that humans can't read but models still understand.
arXiv:2606.19857
ML systems
Skip HTML parsing entirely — retrieve and read the web as screenshots, in pixel space, and beat text-based retrieval even on text-only questions.
PixelRAG paper (GitHub)
AI agents
An AI agent follows a written rule most of the time — but "most of the time" is exactly where reliability dies. The craft is knowing which rules to prompt and which to enforce in code.
Anthropic