Customer-obsessed science
Research areas
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October 23, 20266 min read“Controllable text to speech” makes speech more expressive, character voices more distinct and consistent.
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October 22, 20266 min read
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October 20, 20263 min read
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October 12, 202614 min read
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Featured news
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2026E-commerce competition has intensified in recent years, further raising the delivery speed and cost efficiency standards that companies must meet. The middle mile network that connects fulfillment centers to local distribution centers plays a decisive role in achieving these standards. In this paper, we study the Middle Mile Network Design Problem, which determines optimal network investments that balance
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CIKM 20262026E-commerce stores struggle to understand the root causes of declining seller revenue, often relying on correlation-based analytics that leads to ineffective or even harmful interventions. This paper introduces the Revenue Loss Monitor (RLM), a system that uses Double Machine Learning (DML) to move from simple correlation to causal attribution of revenue loss. RLM successfully isolates the causal impact
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CIKM 20262026Many business and clinical decisions depend on the conditional average treatment effect (CATE) of each of several continuous treatments that move together: advertising spend and discount levels driven by the same campaign, or drug doses adjusted in a common protocol. Several estimator families produce CATE at every query point with a confidence interval, including meta-learners, doubly robust learners,
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2026Product families in large product catalogs suffer from inconsistencies such as duplicates and unit mismatches that degrade customer experience. Detecting these requires reasoning over multiple error types across lengthy product listings, where LLM classification quality degrades due to long-context limitations. We address this by decomposing detection into focused sub-tasks that reduce context and isolate
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2026Production Retrieval-Augmented Generation (RAG) systems serve repeated queries over evolving document corpora under user-specific access constraints. Standard pipelines perform full retrieval and generation for every request, wasting computation on recurring queries. Naive caching reduces latency but introduces safety failures: stale evidence from updated documents, unauthorized content crossing access
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