activity
20202026
most citedOpenChat: Advancing Open-source Language Models with Mixed-Quality Data

27 citations · 71 across the 26 of their papers we have counts for

collaborators

26 papers

cs.CL2026

ROAM: Robust Organization of Atomic Memories for Agents through Semantic Relations

Jianjie Zheng, Peng Lai, Sijie Cheng +3

Long-term language-model agents rely on external memory across interactions. Atomic memories are particularly useful: their fine-grained semantic boundaries enable precise retrieva…

cs.CV2026

CADER: Confidence-Aware Dynamic Evidence Reasoning for Long-Video Understanding

Jinlong Yang, Wenhao Zhang, Kuanwei Lin +1

Long-video understanding increasingly relies on large vision-language models and tool-augmented reasoning, but most systems apply the same inference procedure to every example rega…

cs.CL2026

AnchorMem: Anchored Facts with Associative Contexts for Building Memory in Large Language Models

Zhanyu Shen, Sijie Cheng, Zhicheng Guo +3

While large language models have achieved remarkable performance in complex tasks, they still need a memory system to utilize historical experience in long-term interactions. Exist…

cs.CL2026

Evaluating Memory Capability in Continuous Lifelog Scenario

Jianjie Zheng, Zhichen Liu, Zhanyu Shen +6

Nowadays, wearable devices can continuously lifelog ambient conversations, creating substantial opportunities for memory systems. However, existing benchmarks primarily focus on on…

cs.CV2025

VideoMem: Enhancing Ultra-Long Video Understanding via Adaptive Memory Management

Hongbo Jin, Qingyuan Wang, Wenhao Zhang +2

Ultra long video understanding remains an open challenge, as existing vision language models (VLMs) falter on such content due to limited context length and inefficient long term m…

cs.CV2025

Building Egocentric Procedural AI Assistant: Methods, Benchmarks, and Challenges

Junlong Li, Huaiyuan Xu, Sijie Cheng +4

Driven by recent advances in vision-language models (VLMs) and egocentric perception research, the emerging topic of an egocentric procedural AI assistant (EgoProceAssist) is intro…

cs.CL2025

Beyond the Surface: Enhancing LLM-as-a-Judge Alignment with Human via Internal Representations

Peng Lai, Jianjie Zheng, Sijie Cheng +4

The growing scale of evaluation tasks has led to the widespread adoption of automated evaluation using LLMs, a paradigm known as "LLM-as-a-judge". However, improving its alignment…

cs.CL2025

StableToolBench-MirrorAPI: Modeling Tool Environments as Mirrors of 7,000+ Real-World APIs

Zhicheng Guo, Sijie Cheng, Yuchen Niu +4

The rapid advancement of large language models (LLMs) has spurred significant interest in tool learning, where LLMs are augmented with external tools to tackle complex tasks. Howev…

cs.CV2024

VidEgoThink: Assessing Egocentric Video Understanding Capabilities for Embodied AI

Sijie Cheng, Kechen Fang, Yangyang Yu +6

Recent advancements in Multi-modal Large Language Models (MLLMs) have opened new avenues for applications in Embodied AI. Building on previous work, EgoThink, we introduce VidEgoTh…

cs.CV2024★ 1 cited

ConvLLaVA: Hierarchical Backbones as Visual Encoder for Large Multimodal Models

Chunjiang Ge, Sijie Cheng, Ziming Wang +6

High-resolution Large Multimodal Models (LMMs) encounter the challenges of excessive visual tokens and quadratic visual complexity. Current high-resolution LMMs address the quadrat…

cs.CL2024

StableToolBench: Towards Stable Large-Scale Benchmarking on Tool Learning of Large Language Models

Zhicheng Guo, Sijie Cheng, Hao Wang +6

Large Language Models (LLMs) have witnessed remarkable advancements in recent years, prompting the exploration of tool learning, which integrates LLMs with external tools to addres…

cs.CL2024★ 1 cited

DEEM: Dynamic Experienced Expert Modeling for Stance Detection

Xiaolong Wang, Yile Wang, Sijie Cheng +2

Recent work has made a preliminary attempt to use large language models (LLMs) to solve the stance detection task, showing promising results. However, considering that stance detec…

cs.CL2024

Speak It Out: Solving Symbol-Related Problems with Symbol-to-Language Conversion for Language Models

Yile Wang, Sijie Cheng, Zixin Sun +2

Symbols (or more broadly, non-natural language textual representations) such as numerical sequences, molecular formulas, and table delimiters widely exist, playing important roles…

cs.CV2023★ 1 cited

EgoThink: Evaluating First-Person Perspective Thinking Capability of Vision-Language Models

Sijie Cheng, Zhicheng Guo, Jingwen Wu +4

Vision-language models (VLMs) have recently shown promising results in traditional downstream tasks. Evaluation studies have emerged to assess their abilities, with the majority fo…

cs.CL2023★ 27 cited

OpenChat: Advancing Open-source Language Models with Mixed-Quality Data

Guan Wang, Sijie Cheng, Xianyuan Zhan +3

Nowadays, open-source large language models like LLaMA have emerged. Recent developments have incorporated supervised fine-tuning (SFT) and reinforcement learning fine-tuning (RLFT…

cs.LG2023★ 2 cited

Offline Reinforcement Learning with Imbalanced Datasets

Li Jiang, Sijie Cheng, Jielin Qiu +3

The prevalent use of benchmarks in current offline reinforcement learning (RL) research has led to a neglect of the imbalance of real-world dataset distributions in the development…

cs.CL2023

Prompt-Guided Retrieval Augmentation for Non-Knowledge-Intensive Tasks

Zhicheng Guo, Sijie Cheng, Yile Wang +2

Retrieval-augmented methods have received increasing attention to support downstream tasks by leveraging useful information from external resources. Recent studies mainly focus on…

cs.NE2023★ 3 cited

Evolving Connectivity for Recurrent Spiking Neural Networks

Guan Wang, Yuhao Sun, Sijie Cheng +1

Recurrent spiking neural networks (RSNNs) hold great potential for advancing artificial general intelligence, as they draw inspiration from the biological nervous system and show p…

cs.CL2023

Modeling Adversarial Attack on Pre-trained Language Models as Sequential Decision Making

Xuanjie Fang, Sijie Cheng, Yang Liu +1

Pre-trained language models (PLMs) have been widely used to underpin various downstream tasks. However, the adversarial attack task has found that PLMs are vulnerable to small pert…

cs.CL2023

Say What You Mean! Large Language Models Speak Too Positively about Negative Commonsense Knowledge

Jiangjie Chen, Wei Shi, Ziquan Fu +3

Large language models (LLMs) have been widely studied for their ability to store and utilize positive knowledge. However, negative knowledge, such as "lions don't live in the ocean…

cs.CL2022

Unsupervised Explanation Generation via Correct Instantiations

Sijie Cheng, Zhiyong Wu, Jiangjie Chen +3

While large pre-trained language models (PLM) have shown their great skills at solving discriminative tasks, a significant gap remains when compared with humans for explanation-rel…

cs.IR2022

Learning What You Need from What You Did: Product Taxonomy Expansion with User Behaviors Supervision

Sijie Cheng, Zhouhong Gu, Bang Liu +3

Taxonomies have been widely used in various domains to underpin numerous applications. Specially, product taxonomies serve an essential role in the e-commerce domain for the recomm…

cs.CL2022★ 1 cited

Can Pre-trained Language Models Interpret Similes as Smart as Human?

Qianyu He, Sijie Cheng, Zhixu Li +2

Simile interpretation is a crucial task in natural language processing. Nowadays, pre-trained language models (PLMs) have achieved state-of-the-art performance on many tasks. Howev…

cs.CL2021★ 10 cited

Unsupervised Editing for Counterfactual Stories

Jiangjie Chen, Chun Gan, Sijie Cheng +3

Creating what-if stories requires reasoning about prior statements and possible outcomes of the changed conditions. One can easily generate coherent endings under new conditions, b…