Customer-obsessed science
Research areas
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November 5, 20266 min readAmazon senior applied scientist and coauthors showed that an overlooked mathematical condition from 1963 proves why frequently used machine-learning optimization methods work well.
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October 20, 20263 min read
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October 12, 202614 min read
Featured news
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ICDE 20272027A fundamental challenge of vector search is achieving consistently high recall while minimizing computational costs. Fixed search parameters cause significant performance variance across queries, and conventional evaluation on average recall masks these per-query disparities. We introduce QASP (Query-Adaptive robust vector Search Policy), which predicts the complete recall progression curve per query via
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Unified Search and Recommendation Workshop (USRW'26)2026Recommending a new content type to users who have never tried it is a hard cold-start problem: there is no in-domain history to infer taste from. We study audiobook discovery on a large music streaming platform, where most users have never played an audiobook. Many of them, however, leave behavioral traces in other domains: podcasts, audiobooks elsewhere, videos, and related content. We turn those traces
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PHUSE US Connect 20262026Producing Tables, Listings, and Figures (TLFs) remains one of the most important and expert-dependent steps in clinical study reporting. In a 10-week proof of concept, AI engineers from AWS and statistical programmers from Bayer jointly build a zero-shot, multi-agent workflow that generates structured work packages, executable R code, and draft TLFs with automated checks and human review. Developed on a
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CODE@MIT 20262026Many large-scale A/B testing systems leverage normal-normal empirical Bayes models to improve estimates of treatment impacts and launch decisions. We show that in these models maximum likelihood estimates of the variance of true impacts can be sensitive to a small number of extreme observations. We propose a bounded influence maximum likelihood estimator (BIMLE) that downweights such observations in proportion
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2026Can an LLM read a 30+ page Standard Operating Procedure (SOP) and produce a team of agents that reliably execute it? Industrial SOPs bury workflow logic in prose, leave inter-step dependencies implicit, and scatter referenced entities across sections, forcing planners to parse, sequence, and tool-map within one context window. We argue that the missing primitive is procedural chunking : decomposing a document
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