collaborators

8 papers

cs.LG2026

Task-to-Model Optimization for Enterprise LLM Coding Assistants: A Data-Driven Framework for Cost-Optimal Routing

Srinivasan Manoharan, Junhua Zhao, Fangbo Tu +6

Enterprise AI coding assistants incur substantial inference spend, and naive token-cost minimization often fails to reduce end-to-end cost once retries, escalations, and developer…

cs.LG2026

RLM-Cascade: Response-Level Speculative Decoding for Cost-Efficient LLM API Serving

Haifeng Wu, Srinivasan Manoharan, Fangbo Tu +2

We present RLM-Cascade, a proxy-layer system that applies speculative decoding at the response level to reduce LLM API costs without requiring model architecture access or a shared…

cs.AI2026

Beyond Output Matching: Preserving Internal Geometry in NVFP4 LLM Distillation

Fangbo Tu, Junhua Zhao, Chi Liu +4

Demand for low-precision inference, including NVFP4-based approaches, has grown as large language models are increasingly deployed in latency and cost constrained production enviro…

cs.CL2026

MT-OSC: Path for LLMs that Get Lost in Multi-Turn Conversation

Jyotika Singh, Fang Tu, Miguel Ballesteros +6

Large language models (LLMs) suffer significant performance degradation when user instructions and context are distributed over multiple conversational turns, yet multi-turn (MT) i…

cs.CL2026

GSM-SEM: Benchmark and Framework for Generating Semantically Variant Augmentations

Jyotika Singh, Fang Tu, Aziza Mirsaidova +11

Benchmarks like GSM8K are popular measures of mathematical reasoning, but leaderboard gains can overstate true capability due to memorization of fixed test sets. Most robustness va…

cs.AI2026

JTPRO: A Joint Tool-Prompt Reflective Optimization Framework for Language Agents

Sandip Ghoshal, Anshul Mittal, Jyotika Singh +9

Large language model (LLM) agents augmented with external tools often struggle as number of tools grow large and become domain-specific. In such settings, ambiguous tool descriptio…