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Object-goal navigation is a challenging task that requires guiding an agent to specific objects based on first-person visual observations. The ability of agent to comprehend its surroundings plays a crucial role in achieving successful…

Computer Vision and Pattern Recognition · Computer Science 2024-04-29 Nuo Xu , Wen Wang , Rong Yang , Mengjie Qin , Zheyuan Lin , Wei Song , Chunlong Zhang , Jason Gu , Chao Li

Object goal navigation aims to navigate an agent to locations of a given object category in unseen environments. Classical methods explicitly build maps of environments and require extensive engineering while lacking semantic information…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Shizhe Chen , Thomas Chabal , Ivan Laptev , Cordelia Schmid

Data incompleteness severely impedes the reliability of multimodal systems. Existing reconstruction methods face distinct bottlenecks: conventional parametric/generative models are prone to hallucinations due to over-reliance on internal…

Artificial Intelligence · Computer Science 2026-02-05 Ruiting Dai , Zheyu Wang , Haoyu Yang , Yihan Liu , Chengzhi Wang , Zekun Zhang , Zishan Huang , Jiaman Cen , Lisi Mo

Large Language Models (LLMs) have transformed human-machine interaction since ChatGPT's 2022 debut, with Retrieval-Augmented Generation (RAG) emerging as a key framework that enhances LLM outputs by integrating external knowledge. However,…

Cryptography and Security · Computer Science 2025-07-08 Alberto Castagnaro , Umberto Salviati , Mauro Conti , Luca Pajola , Simeone Pizzi

AI search depends on linking large language models (LLMs) with vast external knowledge sources. Yet web pages, PDF files, and other raw documents are not inherently LLM-ready: they are long, noisy, and unstructured. Conventional retrieval…

Computation and Language · Computer Science 2025-10-31 Hongjin Qian , Zheng Liu

Question answering over visually rich documents (VRDs) requires reasoning not only over isolated content but also over documents' structural organization and cross-page dependencies. However, conventional retrieval-augmented generation…

Computation and Language · Computer Science 2026-03-03 Zhivar Sourati , Zheng Wang , Marianne Menglin Liu , Yazhe Hu , Mengqing Guo , Sujeeth Bharadwaj , Kyu Han , Tao Sheng , Sujith Ravi , Morteza Dehghani , Dan Roth

ObjectGoal Navigation (ObjectNav) is an embodied task wherein agents are to navigate to an object instance in an unseen environment. Prior works have shown that end-to-end ObjectNav agents that use vanilla visual and recurrent modules, e.g.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-04 Joel Ye , Dhruv Batra , Abhishek Das , Erik Wijmans

Sustainable Development Goals (SDGs) bring together the diverse development community and provide a clear set of development targets for 2030. Given a large number of actors and initiatives related to these goals, there is a need to have a…

Digital Libraries · Computer Science 2020-06-01 Lukas Pukelis , Nuria Bautista Puig , Mykola Skrynik , Vilius Stanciauskas

Document understanding is critical for applications from financial analysis to scientific discovery. Current approaches, whether OCR-based pipelines feeding Large Language Models (LLMs) or native Multimodal LLMs (MLLMs), face key…

Computation and Language · Computer Science 2026-04-21 Sensen Gao , Shanshan Zhao , Xu Jiang , Lunhao Duan , Yong Xien Chng , Qing-Guo Chen , Weihua Luo , Kaifu Zhang , Jia-Wang Bian , Mingming Gong

Text classification is fundamental in natural language processing (NLP), and Graph Neural Networks (GNN) are recently applied in this task. However, the existing graph-based works can neither capture the contextual word relationships within…

Computation and Language · Computer Science 2020-05-13 Yufeng Zhang , Xueli Yu , Zeyu Cui , Shu Wu , Zhongzhen Wen , Liang Wang

Modern code intelligence agents operate in contexts exceeding 1 million tokens--far beyond the scale where humans manually locate relevant files. Yet agents consistently fail to discover architecturally critical files when solving…

Artificial Intelligence · Computer Science 2026-02-24 Tarakanath Paipuru

LLM-based web agents show immense promise for information seeking, yet their effectiveness on long-horizon tasks is hindered by a fundamental trade-off in context management. Prevailing ReAct-based agents suffer from context saturation as…

LLM agents excel when environments are mostly static and the needed information fits in a model's context window, but they often fail in open-ended investigations where explanations must be constructed by iteratively mining evidence from…

Artificial Intelligence · Computer Science 2026-01-30 Saurabh Jha , Rohan Arora , Bhavya , Noah Zheutlin , Paulina Toro Isaza , Laura Shwartz , Yu Deng , Daby Sow , Ruchi Mahindru , Ruchir Puri

ChatGPT said: Text-attributed graphs, where nodes and edges contain rich textual information, are widely used across diverse domains. A central challenge in this setting is question answering, which requires jointly leveraging unstructured…

Computation and Language · Computer Science 2025-12-23 Lihui Liu

Although humans live in an open-ended world and endlessly face new challenges, they do not have to learn from scratch each time they face the next one. Rather, they have access to a handful of previously learned skills, which they rapidly…

Artificial Intelligence · Computer Science 2022-07-21 Ahmed Akakzia , Olivier Sigaud

Even for a conservative estimate, 80% of enterprise data reside in unstructured files, stored in data lakes that accommodate heterogeneous formats. Classical search engines can no longer meet information seeking needs, especially when the…

Computation and Language · Computer Science 2024-06-06 Qiang Sun , Yuanyi Luo , Wenxiao Zhang , Sirui Li , Jichunyang Li , Kai Niu , Xiangrui Kong , Wei Liu

Information extraction from copy-heavy documents, characterized by massive volumes of structurally similar content, represents a critical yet understudied challenge in enterprise document processing. We present a systematic framework that…

Computation and Language · Computer Science 2025-10-14 Zilong Wang , Xiaoyu Shen

Traditionally, Reinforcement Learning (RL) problems are aimed at optimization of the behavior of an agent. This paper proposes a novel take on RL, which is used to learn the policy of another agent, to allow real-time recognition of that…

Artificial Intelligence · Computer Science 2024-07-24 Matan Shamir , Osher Elhadad , Matthew E. Taylor , Reuth Mirsky

Large Language Models (LLMs) have recently demonstrated remarkable performance in tasks such as Retrieval-Augmented Generation (RAG) and autonomous AI agent workflows. Yet, when faced with large sets of unstructured documents requiring…

Databases · Computer Science 2025-02-25 Longbin Lai , Changwei Luo , Yunkai Lou , Mingchen Ju , Zhengyi Yang

Autonomous agentic AI systems powered by vision-language models (VLMs) are rapidly advancing toward real-world deployment, yet their cross-modal reasoning capabilities introduce new attack surfaces for adversarial manipulation that exploit…

Artificial Intelligence · Computer Science 2025-11-25 Hangoo Kang , Jehyeok Yeon , Gagandeep Singh