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Information Retrieval is shifting from passive document ranking toward autonomous agentic workflows that operate in multi-step Reason-Act-Observe loops. In such long-horizon trajectories, minor early errors can cascade, leading to…

Artificial Intelligence · Computer Science 2026-04-14 Anushree Sinha , Srivaths Ranganathan , Debanshu Das , Abhishek Dharmaratnakar

Retrieval-augmented generation (RAG) has been extensively employed to mitigate hallucinations in large language models (LLMs). However, existing methods for multi-hop reasoning tasks often lack global planning, increasing the risk of…

Computation and Language · Computer Science 2025-11-14 Yijie Zhu , Haojie Zhou , Wanting Hong , Tailin Liu , Ning Wang

Feature Transformation is crucial for classic machine learning that aims to generate feature combinations to enhance the performance of downstream tasks from a data-centric perspective. Current methodologies, such as manual expert-driven…

Machine Learning · Computer Science 2025-03-27 Tianqi He , Xiaohan Huang , Yi Du , Qingqing Long , Ziyue Qiao , Min Wu , Yanjie Fu , Yuanchun Zhou , Meng Xiao

Large Language Models are being increasingly deployed as the decision-making core of autonomous agents capable of effecting change in external environments. Yet, in conversational benchmarks, which simulate real-world customer-centric issue…

Computation and Language · Computer Science 2026-04-29 Amir Saeidi , Venkatesh Mishra , Souradeep Mukhopadhyay , Gaowen Liu , Ali Payani , Jayanth Srinivasa , Chitta Baral

Integrating multimodal knowledge for abstractive summarization task is a work-in-progress research area, with present techniques inheriting fusion-then-generation paradigm. Due to semantic gaps between computer vision and natural language…

Artificial Intelligence · Computer Science 2022-08-09 Zijian Zhang , Chang Shu , Youxin Chen , Jing Xiao , Qian Zhang , Lu Zheng

Current state-of-the-art approaches to cross-modal retrieval process text and visual input jointly, relying on Transformer-based architectures with cross-attention mechanisms that attend over all words and objects in an image. While…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Gregor Geigle , Jonas Pfeiffer , Nils Reimers , Ivan Vulić , Iryna Gurevych

Reranker improves retrieval performance by capturing document interactions. At one extreme, graph-aware adaptive retrieval (GAR) represents an information-rich regime, requiring a pre-computed document similarity graph in reranking.…

Information Retrieval · Computer Science 2025-12-23 Soyoung Yoon , Jongho Kim , Daeyong Kwon , Avishek Anand , Seung-won Hwang

Text-based person retrieval aims to identify the specific persons using textual descriptions as queries. Existing ad vanced methods typically depend on vision-language pre trained (VLP) models to facilitate effective cross-modal alignment.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Bin Kang , Bin Chen , Junjie Wang , Yong Xu

In natural vision, feedback connections support versatile visual inference capabilities such as making sense of the occluded or noisy bottom-up sensory information or mediating pure top-down processes such as imagination. However, the…

Neurons and Cognition · Quantitative Biology 2023-11-01 Tahereh Toosi , Elias B. Issa

Explainable recommendation has demonstrated significant advantages in informing users about the logic behind recommendations, thereby increasing system transparency, effectiveness, and trustworthiness. To provide personalized and…

Information Retrieval · Computer Science 2025-02-19 Yuhan Li , Xinni Zhang , Linhao Luo , Heng Chang , Yuxiang Ren , Irwin King , Jia Li

Graphical User Interface (GUI) agents have gained substantial attention due to their impressive capabilities to complete tasks through multiple interactions within GUI environments. However, existing agents primarily focus on enhancing the…

Computation and Language · Computer Science 2025-05-28 Qinzhuo Wu , Pengzhi Gao , Wei Liu , Jian Luan

Conventional Retrieval Augmented Generation (RAG) approaches are common in text-based applications. However, they struggle with structured, interconnected datasets like knowledge graphs, where understanding underlying relationships is…

Information Retrieval · Computer Science 2025-07-15 Savini Kashmira , Jayanaka L. Dantanarayana , Krisztián Flautner , Lingjia Tang , Jason Mars

The multi-agent pathfinding (MAPF) problem seeks collision-free paths for a team of agents from their current positions to their pre-set goals in a known environment, and is an essential problem found at the core of many logistics,…

Robotics · Computer Science 2023-10-13 Chengyang He , Tianze Yang , Tanishq Duhan , Yutong Wang , Guillaume Sartoretti

In multimodal multi-hop question answering, we focus on the initial retrieval stage via two distinct tasks: (1) evidence set completion, retrieving missing evidence given context, and (2) sequential pool construction, iteratively building…

Information Retrieval · Computer Science 2026-05-28 Sunah O , Jay-Yoon Lee

The goal of algorithmic recourse is to reverse unfavorable decisions (e.g., from loan denial to approval) under automated decision making by suggesting actionable feature changes (e.g., reduce the number of credit cards). To generate…

Machine Learning · Computer Science 2022-11-07 Martin Pawelczyk , Lea Tiyavorabun , Gjergji Kasneci

Modern information systems require autonomous agents capable of navigating complex workflows, yet current methodologies often struggle with the transition from structured metadata parsing to general environmental perception. While the…

Artificial Intelligence · Computer Science 2026-05-28 Susanna Cifani , Mario Luca Bernardi , Marta Cimitile

Contemporary large language model (LLM)-based multi-agent systems exhibit systematic advantages in deep research tasks, which emphasize iterative, vertically structured information seeking. However, when confronted with wide search tasks…

Multiagent Systems · Computer Science 2026-02-03 Mingju Chen , Guibin Zhang , Heng Chang , Yuchen Guo , Shiji Zhou

LLM-based deep research agents are largely built on the ReAct framework. This linear design makes it difficult to revisit earlier states, branch into alternative search directions, or maintain global awareness under long contexts, often…

In Federated Learning (FL), the data in each client is typically assumed fixed or static. However, data often comes in an incremental manner in real-world applications, where the data domain may increase dynamically. In this work, we study…

Machine Learning · Computer Science 2024-06-04 Yichen Li , Qunwei Li , Haozhao Wang , Ruixuan Li , Wenliang Zhong , Guannan Zhang

Multi-hop question answering (QA) requires systems to iteratively retrieve evidence and reason across multiple hops. While recent RAG and agentic methods report strong results, the underlying retrieval--reasoning \emph{process} is often…

Computation and Language · Computer Science 2026-01-05 Yuelyu Ji , Zhuochun Li , Rui Meng , Daqing He