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Multi-hop question answering (QA) necessitates multi-step reasoning and retrieval across interconnected subjects, attributes, and relations. Existing retrieval-augmented generation (RAG) methods struggle to capture these structural…

计算与语言 · 计算机科学 2026-02-19 Jimeng Shi , Wei Hu , Runchu Tian , Bowen Jin , Wonbin Kweon , SeongKu Kang , Yunfan Kang , Dingqi Ye , Sizhe Zhou , Shaowen Wang , Jiawei Han

Understanding visual art requires reasoning across multiple perspectives -- cultural, historical, and stylistic -- beyond mere object recognition. While recent multimodal large language models (MLLMs) perform well on general image…

Multi-hop question answering (MHQA) requires integrating knowledge scattered across multiple passages to derive the correct answer. Traditional retrieval-augmented generation (RAG) methods primarily focus on coarse-grained textual semantic…

计算与语言 · 计算机科学 2025-08-18 Changjian Wang , Weihong Deng , Weili Guan , Quan Lu , Ning Jiang

Cognitive maps play a crucial role in facilitating flexible behaviour by representing spatial and conceptual relationships within an environment. The ability to learn and infer the underlying structure of the environment is crucial for…

人工智能 · 计算机科学 2023-09-20 Daria de Tinguy , Toon Van de Maele , Tim Verbelen , Bart Dhoedt

Multi-modal Retrieval-Augmented Generation (MMRAG) has emerged as a powerful paradigm for enhancing Multimodal Large Language Models in knowledge-intensive question answering by integrating external visual, textual, and structural…

计算机视觉与模式识别 · 计算机科学 2026-05-29 Xiang Fang , Wanlong Fang , Changshuo Wang

Urban region representation is crucial for various urban downstream tasks. However, despite the proliferation of methods and their success, acquiring general urban region knowledge and adapting to different tasks remains challenging.…

人工智能 · 计算机科学 2025-07-04 Jiahui Jin , Yifan Song , Dong Kan , Haojia Zhu , Xiangguo Sun , Zhicheng Li , Xigang Sun , Jinghui Zhang

Long text generation is an important but challenging task.The main problem lies in learning sentence-level semantic dependencies which traditional generative models often suffer from. To address this problem, we propose a Multi-hop…

计算与语言 · 计算机科学 2020-09-29 Liang Zhao , Jingjing Xu , Junyang Lin , Yichang Zhang , Hongxia Yang , Xu Sun

Multi-agent hierarchical reinforcement learning (MAHRL) has been studied as an effective means to solve intelligent decision problems in complex and large-scale environments. However, most current MAHRL algorithms follow the traditional way…

人工智能 · 计算机科学 2024-11-05 Chanjuan Liu , Jinmiao Cong , Bingcai Chen , Yaochu Jin , Enqiang Zhu

Fine-Grained Change Detection and Regression Analysis are essential in many applications of ArtificialIntelligence. In practice, this task is often challenging owing to the lack of reliable ground truth information andcomplexity arising…

机器学习 · 计算机科学 2022-08-12 Niall O' Mahony , Sean Campbell , Lenka Krpalkova , Joseph Walsh , Daniel Riordan

Multi-hop reasoning over financial disclosures is often a retrieval problem before it becomes a reasoning or generation problem: relevant facts are dispersed across sections, filings, companies, and years, and LLMs often expend excessive…

计算金融 · 定量金融 2025-10-06 Abhinav Arun , Reetu Raj Harsh , Bhaskarjit Sarmah , Stefano Pasquali

Finance decision-making often relies on in-depth data analysis across various data sources, including financial tables, news articles, stock prices, etc. In this work, we introduce FinTMMBench, the first comprehensive benchmark for…

计算金融 · 定量金融 2025-08-05 Fengbin Zhu , Junfeng Li , Liangming Pan , Wenjie Wang , Fuli Feng , Chao Wang , Huanbo Luan , Tat-Seng Chua

Multi-task representation learning (MTRL) is an approach that learns shared latent representations across related tasks, facilitating collaborative learning that improves the overall learning efficiency. This paper studies MTRL for…

机器学习 · 计算机科学 2026-04-07 Yaoze Guo , Shana Moothedath

Constructing 3D representations of object geometry is critical for many robotics tasks, particularly manipulation problems. These representations must be built from potentially noisy partial observations. In this work, we focus on the…

计算机视觉与模式识别 · 计算机科学 2025-11-13 Herbert Wright , Weiming Zhi , Martin Matak , Matthew Johnson-Roberson , Tucker Hermans

Modern cities are increasingly reliant on data-driven insights to support decision making in areas such as transportation, public safety and environmental impact. However, city-level data often exists in heterogeneous formats, collected…

机器学习 · 计算机科学 2025-12-15 Takuya Kurihana , Xiaojian Zhang , Wing Yee Au , Hon Yung Wong

A proper scene representation is central to the pursuit of spatial intelligence where agents can robustly reconstruct and efficiently understand 3D scenes. A scene representation is either metric, such as landmark maps in 3D reconstruction,…

计算机视觉与模式识别 · 计算机科学 2024-11-21 Juexiao Zhang , Gao Zhu , Sihang Li , Xinhao Liu , Haorui Song , Xinran Tang , Chen Feng

In line with the latest research, the task of identifying helpful reviews from a vast pool of user-generated textual and visual data has become a prominent area of study. Effective modal representations are expected to possess two key…

多媒体 · 计算机科学 2024-03-26 HongLin Gong , Mengzhao Jia , Liqiang Jing

Accurate prediction of molecular properties is crucial in drug discovery. Traditional methods often overlook that real-world molecules typically exhibit multiple property labels with complex correlations. To this end, we propose a novel…

定量方法 · 定量生物学 2024-08-13 Linjia Kang , Songhua Zhou , Shuyan Fang , Shichao Liu

Urban land use inference is a critically important task that aids in city planning and policy-making. Recently, the increased use of sensor and location technologies has facilitated the collection of multi-modal mobility data, offering…

人工智能 · 计算机科学 2026-05-11 Xuehao Zhai , Junqi Jiang , Adam Dejl , Antonio Rago , Fangce Guo , Francesca Toni , Aruna Sivakumar

Cognitive maps play a crucial role in facilitating flexible behaviour by representing spatial and conceptual relationships within an environment. The ability to learn and infer the underlying structure of the environment is crucial for…

人工智能 · 计算机科学 2023-06-26 Daria de Tinguy , Toon Van de Maele , Tim Verbelen , Bart Dhoedt

Multimodal recommendation aims to recommend user-preferred candidates based on her/his historically interacted items and associated multimodal information. Previous studies commonly employ an embed-and-retrieve paradigm: learning user and…

信息检索 · 计算机科学 2026-01-15 Han Liu , Yinwei Wei , Xuemeng Song , Weili Guan , Yuan-Fang Li , Liqiang Nie