Customer-obsessed science
Research areas
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October 20, 20263 min readHow Amazon partnered with AVERI to independently assess — and improve — our internal safety testing of Amazon models.
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October 12, 202614 min read
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August 21, 20269 min read
Featured news
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2026Contrastive fine-tuning of a single embedding model across heterogeneous retrieval tasks is challenging when the tasks differ in label structure. In product-compliance retrieval, some tasks have multi-label supervision — every item carries a set of compliance categories, and many in-batch items share at least one category with the query, producing frequent in-batch false negatives. Other tasks (e.g., cross-catalog
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2026Enterprise analytics agents solve long-horizon tool-use problems over distributed business data, requiring retrieval, reasoning, API calls, code execution, and adaptation to intermediate observations. Supervised fine-tuning (SFT) calibrates tool syntax and teacher-supported behavior, whereas reinforcement learning (RL) can explore reward-supported behaviors beyond demonstrations; applied uniformly, however
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ICML 2026 Workshop on Agents in the Wild2026Pre-deployment testing of conversational agents requires simulating diverse user behaviors, yet real interaction data is scarce for new products and scripted test cases miss critical edge cases. Existing LLM-based user simulators generate personas from demographic templates or fictional backstories, lacking grounding in operational data, validated behavioral controllability, and systematic coverage of agent
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NeurIPS 2026 Workshop on Foundation Models for Temporal Systems2026Adapting a forecasting system to a changing world classically means retraining. We ask whether the task of continually learning regimes for time series forecasting can be represented by a piece of text: a guidance block, evolved by outcome-driven reflection and used in a frozen LLM forecaster's prompt. On a refreshed multimodal benchmark (weekly search indices, daily currencies, daily commodities, each
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SOSP 20262026This talk presents a layered C++ architecture that solves this at scale. We present our core abstrcactions; a header-only Lie group library provides shared spatial math types (SE(3) poses, twists, wrenches); a trajectory library for motion planners and controllers; and a collision detection library from the same. We will discuss how we moved from virtual functions to C++ concepts with zero overhead and
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