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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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RecSys 2026 Workshop for Agentic and Generative AI for E-commerce2026Training classifiers for e-commerce catalog management is bottlenecked by two simultaneous scarcities: underspecified task specifications (a bare URL or one-sentence description) and few or no labeled examples. We present MASLOW, to our knowledge the first multi-agent synthetic data pipeline that handles the full journey from underspecified inputs to labeled training data without requiring clean class labels
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2026Large language models increasingly need to generate structured outputs that conform to predefined schemas, with one common constraint being selection from a finite set of valid strings. Current constrained decoding systems handle this through general-purpose grammar compilation, which becomes prohibitively slow as the number of valid values grows into the thousands, a cardinality wall. We introduce the
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2026Domain-specific finetuning is essential for dense retrievers, yet not all data pairs contribute equally to the learning process. We introduce OPERA1 , a data pruning framework that exploits this heterogeneity to improve both the effectiveness and efficiency of retrieval model adaptation. We first investigate static pruning (SP), which retains only high-similarity query document pairs, revealing an intrinsic
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2026Evolutionary prompt optimizers such as GEPA suffer from prompt bloat: each iteration appends rules and caveats, producing prompts up to 3×longer yet no more accurate. We trace this to three deficiencies - incomplete error observation, limited search diversity, and unreliable selection - and propose ESPO (Error-Structured Prompt Optimization), which decomposes prompt optimization into three phases: Diagnose
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2026Fine-tuning large language models (LLMs) for e-commerce attribute extraction requires labeled data representative across thousands of product types, attributes, and multiple languages. This combinatorial scale translates to millions of annotations, rendering human labeling prohibitively costly. While recent work has demonstrated synthetic label generation using LLMs (Negri et al., 2025), deploying such
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