collaborators

6 papers

cs.AI2026

StepSafe: Learning Timely Intervention with Context-Aware Safety Reasoning

Siyi Gu, Kunhan Gao, Chao Peter Yang +3

Safety in agentic systems is inherently sequential: whether an action is safe depends on prior actions, tool outputs, information disclosures, and interactions among agents. Recent…

cs.CL2026

Fractional Decay KV-Cache: Ownership-Aware Memory Management for Improved Inference Relevancy in Dialog Systems

Sukanta Ganguly

Key-value (KV) caching is essential for efficient autoregressive inference in transformer based dialog systems, yet existing strategies treat all cached entries uniformly or apply…

cs.AI2026

PLACEMEM: Toward a Compute-Aware Memory Plane for Lifelong Agents

Sukanta Ganguly

Lifelong agents need more than larger context windows and better retrieval. They need memories that can persist, evolve, and be corrected without forcing the serving stack to recom…

cs.IR2026

Your Embedding Model is SMARTer Than You Think

Jianrui Zhang, Hyun Jung Lee, Sukanta Ganguly +3

Multimodal retrieval relies heavily on single-vector retrievers, which compress rich, sequential token sequences into one single global representation. While efficient, they discar…

cs.IR2026

Reasoning-Augmented Representations for Multimodal Retrieval

Jianrui Zhang, Anirudh Sundara Rajan, Brandon Han +3

Universal Multimodal Retrieval (UMR) seeks any-to-any search across text and vision, yet modern embedding models remain brittle when queries require latent reasoning (e.g., resolvi…

cs.IR2026

HypRAG: Hyperbolic Dense Retrieval for Retrieval Augmented Generation

Hiren Madhu, Ngoc Bui, Ali Maatouk +6

Embedding geometry plays a fundamental role in retrieval quality, yet dense retrievers for retrieval-augmented generation (RAG) remain largely confined to Euclidean space. However,…