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Large Language Model (LLM) agents are increasingly used in real-world products, where personalized and context-aware user interactions are essential. A central enabler of such capabilities is the agent's long-term semantic memory system,…

Information Retrieval · Computer Science 2026-05-27 Zhentao Xu , Shangjin Zhang , Emir Poyraz , Yvonne Li , Ye Jin , Xie Lu , Xiaoyang Gu , Karthik Ramgopal , Praveen Kumar Bodigutla , Xiaofeng Wang

Large Language Models (LLMs) have recently been widely adopted in conversational agents. However, the increasingly long interactions between users and agents accumulate extensive dialogue records, making it difficult for LLMs with limited…

Computation and Language · Computer Science 2025-09-30 Derong Xu , Yi Wen , Pengyue Jia , Yingyi Zhang , wenlin zhang , Yichao Wang , Huifeng Guo , Ruiming Tang , Xiangyu Zhao , Enhong Chen , Tong Xu

Named entity recognition (NER) models are typically based on the architecture of Bi-directional LSTM (BiLSTM). The constraints of sequential nature and the modeling of single input prevent the full utilization of global information from…

Computation and Language · Computer Science 2019-11-20 Ying Luo , Fengshun Xiao , Hai Zhao

We propose a method to create document representations that reflect their internal structure. We modify Tree-LSTMs to hierarchically merge basic elements such as words and sentences into blocks of increasing complexity. Our Structure…

Computation and Language · Computer Science 2019-10-08 Khalil Mrini , Claudiu Musat , Michael Baeriswyl , Martin Jaggi

Traditional studies of memory for meaningful narratives focus on specific stories and their semantic structures but do not address common quantitative features of recall across different narratives. We introduce a statistical ensemble of…

Statistical Mechanics · Physics 2025-02-25 Weishun Zhong , Tankut Can , Antonis Georgiou , Ilya Shnayderman , Mikhail Katkov , Misha Tsodyks

Recent advancements in large language models (LLMs) have enabled significant progress in decision-making and task planning for embodied autonomous agents. However, most existing methods struggle with complex, long-horizon tasks because they…

Artificial Intelligence · Computer Science 2026-02-11 Jae-Woo Choi , Hyungmin Kim , Hyobin Ong , Youngwoo Yoon , Minsu Jang , Dohyung Kim , Jaehong Kim

Recent advancements have significantly enhanced the performance of large language models (LLMs) in tackling complex reasoning tasks, achieving notable success in domains like mathematical and logical reasoning. However, these methods…

Artificial Intelligence · Computer Science 2025-05-30 Runquan Gui , Zhihai Wang , Jie Wang , Chi Ma , Huiling Zhen , Mingxuan Yuan , Jianye Hao , Defu Lian , Enhong Chen , Feng Wu

Human-agent dialogues often exhibit topic continuity-a stable thematic frame that evolves through temporally adjacent exchanges-yet most large language model (LLM) agent memory systems fail to preserve it. Existing designs follow a…

Computation and Language · Computer Science 2026-01-21 Dehao Tao , Guoliang Ma , Yongfeng Huang , Minghu Jiang

Information, stored or transmitted in digital form, is often structured. Individual data records are usually represented as hierarchies of their elements. Together, records form larger structures. Information processing applications have to…

Computation and Language · Computer Science 2007-05-23 Nikita Schmidt , Ahmed Patel

Long-term memory is essential for conversational agents to maintain coherence, track persistent tasks, and provide personalized interactions across extended dialogues. However, existing approaches as Retrieval-Augmented Generation (RAG) and…

Computation and Language · Computer Science 2026-04-13 Juwei Yue , Chuanrui Hu , Jiawei Sheng , Zuyi Zhou , Wenyuan Zhang , Tingwen Liu , Li Guo , Yafeng Deng

We propose a hybrid architecture that integrates decision tree-based symbolic reasoning with the generative capabilities of large language models (LLMs) within a coordinated multi-agent framework. Unlike prior approaches that loosely couple…

Artificial Intelligence · Computer Science 2025-08-08 Andrew Kiruluta

Verbalization of robot experience, i.e., summarization of and question answering about a robot's past, is a crucial ability for improving human-robot interaction. Previous works applied rule-based systems or fine-tuned deep models to…

Optimization modeling is one of the most crucial but technical parts of operations research (OR). To automate the modeling process, existing works have leveraged large language models (LLMs), prompting them to break down tasks into steps…

Artificial Intelligence · Computer Science 2025-10-28 Haoyang Liu , Jie Wang , Yuyang Cai , Xiongwei Han , Yufei Kuang , Jianye Hao

The ubiquity and value of tables as semi-structured data across various domains necessitate advanced methods for understanding their complexity and vast amounts of information. Despite the impressive capabilities of large language models…

Computation and Language · Computer Science 2024-11-14 Deyi Ji , Lanyun Zhu , Siqi Gao , Peng Xu , Hongtao Lu , Jieping Ye , Feng Zhao

In this study, we propose a novel human-like memory architecture designed for enhancing the cognitive abilities of large language model based dialogue agents. Our proposed architecture enables agents to autonomously recall memories…

Human-Computer Interaction · Computer Science 2024-04-02 Yuki Hou , Haruki Tamoto , Homei Miyashita

Sentence embedding is an effective feature representation for most deep learning-based NLP tasks. One prevailing line of methods is using recursive latent tree-structured networks to embed sentences with task-specific structures. However,…

Computation and Language · Computer Science 2018-11-16 Jiaxin Shi , Lei Hou , Juanzi Li , Zhiyuan Liu , Hanwang Zhang

Large language models (LLMs) have advanced in large strides due to the effectiveness of the self-attention mechanism that processes and compares all tokens at once. However, this mechanism comes with a fundamental issue -- the predetermined…

Computation and Language · Computer Science 2023-10-10 Howard Chen , Ramakanth Pasunuru , Jason Weston , Asli Celikyilmaz

This work introduces the Eigen Memory Tree (EMT), a novel online memory model for sequential learning scenarios. EMTs store data at the leaves of a binary tree and route new samples through the structure using the principal components of…

Machine Learning · Computer Science 2022-11-01 Mark Rucker , Jordan T. Ash , John Langford , Paul Mineiro , Ida Momennejad

Large language models (LLMs) have shown limitations in tasks requiring complex logical reasoning and multi-step problem-solving. To address these challenges, researchers have employed carefully designed prompts and flowcharts, simulating…

Computation and Language · Computer Science 2024-12-06 Changcheng Li , Xiangyu Wang , Qiuju Chen , Xiren Zhou , Huanhuan Chen

Detecting AI-involved text is essential for combating misinformation, plagiarism, and academic misconduct. However, AI text generation includes diverse collaborative processes (AI-written text edited by humans, human-written text edited by…

Computation and Language · Computer Science 2025-10-21 Yongxin He , Shan Zhang , Yixuan Cao , Lei Ma , Ping Luo