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January 13, 20267 min readLeveraging existing environment simulators and reward functions based on verifiable ground truth boosts task success rate, even with small models and small training datasets.
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December 29, 20256 min read
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December 29, 20259 min read
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Featured news
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ACM SIGSPATIAL 20252025In today's fast-paced world, customers increasingly value quick and reliable delivery services, with many prioritizing speed as a decisive factor in their purchasing decisions. E-commerce stores serve customers through specialized programs ensuring delivery within same day. Facilitated by strategically placed delivery networks, this provides an ultra-fast delivery experience to the end customers enabling
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2025Large Language Models (LLMs) increasingly serve diverse global audiences, making it critical for responsible AI deployment across cultures. While recent works have proposed various approaches to enhance cultural alignment in LLMs, a systematic analysis of their evaluation benchmarks remains needed. We propose a novel framework that conceptualizes alignment along three dimensions: Cultural Group (who to
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arXiv2025Climate data science faces persistent barriers stemming from the fragmented nature of data sources, heterogeneous formats, and the steep technical expertise required to identify, acquire, and process datasets. These challenges limit participation, slow discovery, and reduce the reproducibility of scientific workflows. In this paper, we present a proof of concept for addressing these barriers through the
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2025Large language models (LLMs) have demonstrated impressive capabilities across diverse tasks, but they remain susceptible to hallucinations— generating content that appears plausible but contains factual inaccuracies. We present FINCH-ZK, a black-box framework that leverages FINe-grained Cross-model consistency to detect and mitigate Hallucinations in LLM outputs without requiring external knowledge sources
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Amazon Technical Reports2025We present Amazon Nova Multimodal Embeddings (MME), a state-of-the-art multimodal embedding model for agentic RAG and semantic search applications. Nova MME is the first embeddings model that supports five modalities as input: text, documents, images, video and audio, and transforms them into a single, unified embedding space. This powerful capability enables cross-modal retrieval —allowing users to search
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