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Retrieval-Augmented Generation (RAG) systems critically depend on how external knowledge is segmented, structured, and retrieved. Most existing approaches either retrieve fixed-length text chunks, which fragments discourse context, or…

Information Retrieval · Computer Science 2026-04-21 Mengzhu Chen , Haodong Yang , Jia Cai , Xiaolin Huang

Understanding and replicating human mobility requires not only spatial-temporal accuracy but also an awareness of the cognitive hierarchy underlying real-world travel decisions. Traditional agent-based or deep learning models can reproduce…

Multiagent Systems · Computer Science 2025-10-30 Qiumeng Li , Chunhou Ji , Xinyue Liu

This paper describes a neural semantic parser that maps natural language utterances onto logical forms which can be executed against a task-specific environment, such as a knowledge base or a database, to produce a response. The parser…

Computation and Language · Computer Science 2018-08-14 Jianpeng Cheng , Siva Reddy , Vijay Saraswat , Mirella Lapata

Recent advances in large language models (LLMs) have enabled agentic systems for sequential decision-making. Such agents must perceive their environment, reason across multiple time steps, and take actions that optimize long-term…

Artificial Intelligence · Computer Science 2026-03-10 ELita Lobo , Xu Chen , Jingjing Meng , Nan Xi , Yang Jiao , Chirag Agarwal , Yair Zick , Yan Gao

Maintaining narrative coherence and visual consistency remains a central challenge in open-domain video generation. Existing text-to-video models often treat each shot independently, resulting in identity drift, scene inconsistency, and…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Qinglin Zeng , Kaitong Cai , Ruiqi Chen , Qinhan Lv , Keze Wang

This paper proposes the problem of Deep Question Generation (DQG), which aims to generate complex questions that require reasoning over multiple pieces of information of the input passage. In order to capture the global structure of the…

Computation and Language · Computer Science 2020-04-28 Liangming Pan , Yuxi Xie , Yansong Feng , Tat-Seng Chua , Min-Yen Kan

The paper studies sequential reasoning over graph-structured data, which stands as a fundamental task in various trending fields like automated math problem solving and neural graph algorithm learning, attracting a lot of research interest.…

Artificial Intelligence · Computer Science 2024-12-13 Shuo Shi , Chao Peng , Chenyang Xu , Zhengfeng Yang

The technology of automatic document summarization is maturing and may provide a solution to the information overload problem. Nowadays, document summarization plays an important role in information retrieval. With a large volume of…

Information Retrieval · Computer Science 2012-04-10 Mohsen Pourvali , Mohammad Saniee Abadeh

This research introduces ScoreRAG, an approach to enhance the quality of automated news generation. Despite advancements in Natural Language Processing and large language models, current news generation methods often struggle with…

Computation and Language · Computer Science 2025-06-05 Pei-Yun Lin , Yen-lung Tsai

Composing simple elements into complex concepts is crucial yet challenging, especially for 3D action generation. Existing methods largely rely on extensive neural language annotations to discern composable latent semantics, a process that…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Xiao Liu , Guangyi Chen , Yansong Tang , Guangrun Wang , Xiao-Ping Zhang , Ser-Nam Lim

Extracting structured, machine-readable compliance criteria from regulatory documents remains an open challenge. Single-pass language models hallucinate structural elements, lose hierarchical relationships, and fail to resolve…

Multiagent Systems · Computer Science 2026-04-15 Mohammed Ali , Abdelrahman Abdallah , Adam Jatowt

We introduce Act2Vec, a general framework for learning context-based action representation for Reinforcement Learning. Representing actions in a vector space help reinforcement learning algorithms achieve better performance by grouping…

Artificial Intelligence · Computer Science 2019-05-21 Guy Tennenholtz , Shie Mannor

Recent advances in Large Language Models (LLMs) have significantly improved complex reasoning capabilities. Retrieval-Augmented Generation (RAG) has further extended these capabilities by grounding generation in dynamically retrieved…

Computation and Language · Computer Science 2026-02-23 Jash Rajesh Parekh , Pengcheng Jiang , Jiawei Han

Publicly significant images from events hold valuable contextual information, crucial for journalism and education. However, existing methods often struggle to extract this relevance accurately. To address this, we introduce GETReason…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Shikhhar Siingh , Abhinav Rawat , Chitta Baral , Vivek Gupta

Document-level event extraction aims to recognize event information from a whole piece of article. Existing methods are not effective due to two challenges of this task: a) the target event arguments are scattered across sentences; b) the…

Computation and Language · Computer Science 2021-06-01 Runxin Xu , Tianyu Liu , Lei Li , Baobao Chang

Text-to-video generation models have shown significant progress in the recent years. However, they still struggle with generating complex dynamic scenes based on compositional text prompts, such as attribute binding for multiple objects,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Kaiyi Huang , Yukun Huang , Xuefei Ning , Zinan Lin , Yu Wang , Xihui Liu

Document-level relation extraction aims to identify relations between entities in a whole document. Prior efforts to capture long-range dependencies have relied heavily on implicitly powerful representations learned through (graph) neural…

Computation and Language · Computer Science 2021-11-11 Dongyu Ru , Changzhi Sun , Jiangtao Feng , Lin Qiu , Hao Zhou , Weinan Zhang , Yong Yu , Lei Li

Generating long and coherent text is an important but challenging task, particularly for open-ended language generation tasks such as story generation. Despite the success in modeling intra-sentence coherence, existing generation models…

Computation and Language · Computer Science 2021-05-20 Jian Guan , Xiaoxi Mao , Changjie Fan , Zitao Liu , Wenbiao Ding , Minlie Huang

Although significant progress has been made in many tasks within the field of Natural Language Processing (NLP), Controlled Text Generation (CTG) continues to face numerous challenges, particularly in achieving fine-grained conditional…

Computation and Language · Computer Science 2025-09-18 Xinxu Zhou , Jiaqi Bai , Zhenqi Sun , Fanxiang Zeng , Yue Liu

We propose Point2Act, which directly retrieves the 3D action point relevant to a contextually described task, leveraging Multimodal Large Language Models (MLLMs). Foundation models opened the possibility for generalist robots that can…

Robotics · Computer Science 2026-03-05 Sang Min Kim , Hyeongjun Heo , Junho Kim , Yonghyeon Lee , Young Min Kim