activity
20202026
most citedYelp Review Rating Prediction: Machine Learning and Deep Learning Models

6 citations · 25 across the 20 of their papers we have counts for

collaborators

25 papers

cs.AI2026

Seeing, Maintaining, and Learning: The Evolution of Multimodal Agent Memory

Minghao Guo, Qingyue Jiao, Xiujin Liu +77

Multimodal models and agents have emerged to enable AI systems to learn from and interact with the real world more like humans by integrating information across multiple modalities…

cs.AI2026

AutoMARS: Automatic and Scalable Multi-Agent Large Language Model Framework for Supply Chain Risk Assessment

Yinzhu Quan, Zefang Liu, Frederick Benaben +1

We propose AutoMARS (Automatic Multi-Agent Risk Assessment), an agentic framework for automatic and scalable comparative risk assessment in supply chain networks. The framework ena…

cs.AI2026

EconSkills: Studying Skill Transfer and Retrieval for Web Agents on Live Economic Data

Yinzhu Quan, Zefang Liu

Web agents often revisit the same sites, yet most evaluations discard the procedures learned in earlier successful interactions. We introduce EconSkills, a skill library and evalua…

cs.CL2026

StreamHear: Domain-Adapted Pseudo-Labeling for Semi-Supervised Streaming Speech Recognition

Zefang Liu, Chenyang Zhu, Sangwoo Cho +3

Streaming automatic speech recognition (ASR) underperforms on domain-shifted target audio, where labeled in-domain data is costly to prepare while unlabeled audio is abundant. We p…

cs.AI2026

Ask, Don't Judge: Binary Questions for Interpretable LLM Evaluation and Self-Improvement

Sangwoo Cho, Kushal Chawla, Pengshan Cai +4

Evaluating LLM outputs remains a major bottleneck in NLP: human evaluation is expensive and slow, lexical metrics correlate poorly with human judgments on open-ended generation, an…

cs.CL2026

ReHear: Iterative Pseudo-Label Refinement for Semi-Supervised Speech Recognition via Audio Large Language Models

Zefang Liu, Chenyang Zhu, Sangwoo Cho +1

Semi-supervised learning in automatic speech recognition (ASR) typically relies on pseudo-labeling, which often suffers from confirmation bias and error accumulation due to noisy s…

cs.CL2025

Temporal Tokenization Strategies for Event Sequence Modeling with Large Language Models

Zefang Liu, Nam H. Nguyen, Yinzhu Quan +1

Representing continuous time is a critical and under-explored challenge in modeling temporal event sequences with large language models (LLMs). Various strategies like byte-level r…

cs.CL2025★ 1 cited

AgentBnB: A Browser-Based Cybersecurity Tabletop Exercise with Large Language Model Support and Retrieval-Aligned Scaffolding

Arman Anwar, Zefang Liu

Traditional cybersecurity tabletop exercises (TTXs) provide valuable training but are often scripted, resource-intensive, and difficult to scale. We introduce AgentBnB, a browser-b…

cs.CL2025

AutoBnB-RAG: Enhancing Multi-Agent Incident Response with Retrieval-Augmented Generation

Zefang Liu, Arman Anwar

Incident response (IR) requires fast, coordinated, and well-informed decision-making to contain and mitigate cyber threats. While large language models (LLMs) have shown promise as…

physics.plasm-ph2025

A Generalized Multinodal Model for Plasma Particle and Energy Transport

Zefang Liu, Weston M. Stacey

We present a generalized multinodal model for simulating particle and energy transport in toroidal plasma configurations, developed to support burning plasma analysis and reactor-s…

physics.plasm-ph2025

Sensitivity Analysis of Transport and Radiation in NeuralPlasmaODE for ITER Burning Plasmas

Zefang Liu, Weston M. Stacey

Understanding how key physical parameters influence burning plasma behavior is critical for the reliable operation of ITER. In this work, we extend NeuralPlasmaODE, a multi-region,…

physics.plasm-ph2025

Optimizing External Sources for Controlled Burning Plasma in Tokamaks with Neural Ordinary Differential Equations

Zefang Liu, Weston M. Stacey

Achieving controlled burning plasma in tokamaks requires precise regulation of external particle and energy sources to reach and maintain target core densities and temperatures. Th…

cs.CL2025

EconWebArena: Benchmarking Autonomous Agents on Economic Tasks in Realistic Web Environments

Zefang Liu, Yinzhu Quan

We introduce EconWebArena, a benchmark for evaluating autonomous agents on complex, multimodal economic tasks in realistic web environments. The benchmark comprises 360 curated tas…

cs.CL2024

Multi-Agent Collaboration in Incident Response with Large Language Models

Zefang Liu

Incident response (IR) is a critical aspect of cybersecurity, requiring rapid decision-making and coordinated efforts to address cyberattacks effectively. Leveraging large language…

cs.CL2024

Retrieval of Temporal Event Sequences from Textual Descriptions

Zefang Liu, Yinzhu Quan

Retrieving temporal event sequences from textual descriptions is crucial for applications such as analyzing e-commerce behavior, monitoring social media activities, and tracking cr…

cs.LG2024

TPP-LLM: Modeling Temporal Point Processes by Efficiently Fine-Tuning Large Language Models

Zefang Liu, Yinzhu Quan

Temporal point processes (TPPs) are widely used to model the timing and occurrence of events in domains such as social networks, transportation systems, and e-commerce. In this pap…

physics.plasm-ph2024

Application of Neural Ordinary Differential Equations for ITER Burning Plasma Dynamics

Zefang Liu, Weston M. Stacey

The dynamics of burning plasmas in tokamaks are crucial for advancing controlled thermonuclear fusion. This study applies the NeuralPlasmaODE, a multi-region multi-timescale transp…

cs.CL2024★ 4 cited

InvAgent: A Large Language Model based Multi-Agent System for Inventory Management in Supply Chains

Yinzhu Quan, Zefang Liu

Supply chain management (SCM) involves coordinating the flow of goods, information, and finances across various entities to deliver products efficiently. Effective inventory manage…

cs.CL2024

EconLogicQA: A Question-Answering Benchmark for Evaluating Large Language Models in Economic Sequential Reasoning

Yinzhu Quan, Zefang Liu

In this paper, we introduce EconLogicQA, a rigorous benchmark designed to assess the sequential reasoning capabilities of large language models (LLMs) within the intricate realms o…

cs.CL2024★ 2 cited

AdaMoLE: Fine-Tuning Large Language Models with Adaptive Mixture of Low-Rank Adaptation Experts

Zefang Liu, Jiahua Luo

We introduce AdaMoLE, a novel method for fine-tuning large language models (LLMs) through an Adaptive Mixture of Low-Rank Adaptation (LoRA) Experts. Moving beyond conventional meth…

physics.plasm-ph2024

Application of Neural Ordinary Differential Equations for Tokamak Plasma Dynamics Analysis

Zefang Liu, Weston M. Stacey

In the quest for controlled thermonuclear fusion, tokamaks present complex challenges in understanding burning plasma dynamics. This study introduces a multi-region multi-timescale…

cs.CL2023★ 6 cited

SecQA: A Concise Question-Answering Dataset for Evaluating Large Language Models in Computer Security

Zefang Liu

In this paper, we introduce SecQA, a novel dataset tailored for evaluating the performance of Large Language Models (LLMs) in the domain of computer security. Utilizing multiple-ch…

cs.CL2023★ 1 cited

Anomaly Detection of Command Shell Sessions based on DistilBERT: Unsupervised and Supervised Approaches

Zefang Liu, John Buford

Anomaly detection in command shell sessions is a critical aspect of computer security. Recent advances in deep learning and natural language processing, particularly transformer-ba…

cs.IR2021★ 5 cited

Deep Reinforcement Learning based Group Recommender System

Zefang Liu, Shuran Wen, Yinzhu Quan

Group recommender systems are widely used in current web applications. In this paper, we propose a novel group recommender system based on the deep reinforcement learning. We intro…