collaborators

7 papers

cs.AI2026

Goal-Oriented Reasoning for RAG-based Memory in Conversational Agentic LLM Systems

Jiazhou Liang, Armin Toroghi, Yifan Simon Liu +3

LLM-based conversational AI agents struggle to maintain coherent behavior over long horizons due to limited context. While RAG-based approaches are increasingly adopted to overcome…

cs.CL2026

Temporal Order Matters for Agentic Memory: Segment Trees for Long-Horizon Agents

Yifan Simon Liu, Liam Gallagher, Faeze Moradi Kalarde +3

Long-horizon conversational agents need to interact with users through evolving events, tasks, and goals. Such histories are naturally temporal, yet many existing memory systems or…

cs.CL2026

CommonWhy: A Dataset for Evaluating Entity-Based Causal Commonsense Reasoning in Large Language Models

Armin Toroghi, Faeze Moradi Kalarde, Scott Sanner

To effectively interact with the real world, Large Language Models (LLMs) require entity-based commonsense reasoning, a challenging task that necessitates integrating factual knowl…

cs.AI2026

Semantic XPath: Structured Agentic Memory Access for Conversational AI

Yifan Simon Liu, Ruifan Wu, Liam Gallagher +3

Conversational AI (ConvAI) agents increasingly maintain structured memory to support long-term, task-oriented interactions. In-context memory approaches append the growing history…

cs.IR2025

Multimodal Item Scoring for Natural Language Recommendation via Gaussian Process Regression with LLM Relevance Judgments

Yifan Liu, Qianfeng Wen, Jiazhou Liang +6

Natural Language Recommendation (NLRec) generates item suggestions based on the relevance between user-issued NL requests and NL item description passages. Existing NLRec approache…

cs.CL2025

CoLoTa: A Dataset for Entity-based Commonsense Reasoning over Long-Tail Knowledge

Armin Toroghi, Willis Guo, Scott Sanner

The rise of Large Language Models (LLMs) has redefined the AI landscape, particularly due to their ability to encode factual and commonsense knowledge, and their outstanding perfor…