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Retrieval augmented generation (RAG) has transformed text based question answering, yet its extension to visual domains remains hindered by fundamental challenges: bridging the modality gap between image queries and text heavy knowledge…

计算机视觉与模式识别 · 计算机科学 2026-04-27 Parthaw Goswami , Jaynto Goswami Deep

Data encoding is a common and central operation in most data analysis tasks. The performance of other models downstream in the computational process highly depends on the quality of data encoding. One of the most powerful ways to encode…

机器学习 · 计算机科学 2025-09-03 Teddy Lazebnik , Liron Simon-Keren

Webpage information extraction (WIE) is an important step to create knowledge bases. For this, classical WIE methods leverage the Document Object Model (DOM) tree of a website. However, use of the DOM tree poses significant challenges as…

计算机视觉与模式识别 · 计算机科学 2022-08-08 Anurendra Kumar , Keval Morabia , Jingjin Wang , Kevin Chen-Chuan Chang , Alexander Schwing

Transformer-based pre-trained models, such as BERT, have achieved remarkable results on machine reading comprehension. However, due to the constraint of encoding length (e.g., 512 WordPiece tokens), a long document is usually split into…

计算与语言 · 计算机科学 2021-09-15 Jing Zhao , Junwei Bao , Yifan Wang , Yongwei Zhou , Youzheng Wu , Xiaodong He , Bowen Zhou

This paper presents an advancement in Question-Answering (QA) systems using a Retrieval Augmented Generation (RAG) framework to enhance information extraction from PDF files. Recognizing the richness and diversity of data within…

计算与语言 · 计算机科学 2026-04-08 Thi Thu Uyen Hoang , Meenakshi Rajendran , Kun Zhang , Yuhan Wu , Viet Anh Nguyen

The detection of the abnormal area from urban data is a significant research problem. However, to the best of our knowledge, previous methods designed on spatio-temporal anomalies are road-based or grid-based, which usually causes the data…

社会与信息网络 · 计算机科学 2020-07-16 Huaishao Luo , Chuishi Meng , Bowen Wu , Junbo Zhang , Tianrui Li , Yu Zheng

Document-level relation extraction (DocRE) models generally use graph networks to implicitly model the reasoning skill (i.e., pattern recognition, logical reasoning, coreference reasoning, etc.) related to the relation between one entity…

计算与语言 · 计算机科学 2021-06-04 Wang Xu , Kehai Chen , Tiejun Zhao

Relation Extraction (RE) is a fundamental task of information extraction, which has attracted a large amount of research attention. Previous studies focus on extracting the relations within a sentence or document, while currently…

计算与语言 · 计算机科学 2022-11-01 Fengqi Wang , Fei Li , Hao Fei , Jingye Li , Shengqiong Wu , Fangfang Su , Wenxuan Shi , Donghong Ji , Bo Cai

Tax authorities and public-sector financial agencies rely on large volumes of unstructured and semi-structured fiscal documents - including tax forms, instructions, publications, and jurisdiction-specific guidance - to support compliance…

信息检索 · 计算机科学 2026-03-17 Akhil Chandra Shanivendra

Information Extraction (IE) aims to extract structural knowledge (e.g., entities, relations, events) from natural language texts, which brings challenges to existing methods due to task-specific schemas and complex text expressions. Code,…

人工智能 · 计算机科学 2023-11-07 Yucan Guo , Zixuan Li , Xiaolong Jin , Yantao Liu , Yutao Zeng , Wenxuan Liu , Xiang Li , Pan Yang , Long Bai , Jiafeng Guo , Xueqi Cheng

While Knowledge Distillation (KD) has been recognized as a useful tool in many visual tasks, such as supervised classification and self-supervised representation learning, the main drawback of a vanilla KD framework is its mechanism, which…

计算机视觉与模式识别 · 计算机科学 2021-12-03 Zhiqiang Shen , Eric Xing

This paper presents Deep Retinal Image Understanding (DRIU), a unified framework of retinal image analysis that provides both retinal vessel and optic disc segmentation. We make use of deep Convolutional Neural Networks (CNNs), which have…

计算机视觉与模式识别 · 计算机科学 2016-11-17 Kevis-Kokitsi Maninis , Jordi Pont-Tuset , Pablo Arbeláez , Luc Van Gool

In this paper, we consider advancing web-scale knowledge extraction and alignment by integrating OpenIE extractions in the form of (subject, predicate, object) triples with Knowledge Bases (KB). Traditional techniques from universal schema…

信息检索 · 计算机科学 2019-04-30 Dongxu Zhang , Subhabrata Mukherjee , Colin Lockard , Xin Luna Dong , Andrew McCallum

Relational triple extraction is crucial work for the automatic construction of knowledge graphs. Existing methods only construct shallow representations from a token or token pair-level. However, previous works ignore local spatial…

计算与语言 · 计算机科学 2024-06-14 Ning An , Lei Hei , Yong Jiang , Weiping Meng , Jingjing Hu , Boran Huang , Feiliang Ren

Legal document retrieval and judgment prediction are crucial tasks in intelligent legal systems. In practice, determining whether two documents share the same judgments is essential for establishing their relevance in legal retrieval.…

信息检索 · 计算机科学 2024-04-16 Weicong Qin , Zelin Cao , Weijie Yu , Zihua Si , Sirui Chen , Jun Xu

The rise of multi-modal search requests from users has highlighted the importance of multi-modal retrieval (i.e. image-to-text or text-to-image retrieval), yet the more complex task of image-to-multi-modal retrieval, crucial for many…

信息检索 · 计算机科学 2024-06-11 Zida Cheng , Chen Ju , Shuai Xiao , Xu Chen , Zhonghua Zhai , Xiaoyi Zeng , Weilin Huang , Junchi Yan

Visual document retrieval requires understanding heterogeneous and multi-modal content to satisfy implicit information needs. Recent advances use screenshot-based document encoding with fine-grained late interaction to encode holistic…

信息检索 · 计算机科学 2026-05-12 Wanqing Cui , Wei Huang , Yazhi Guo , Yibo Hu , Meiguang Jin , Junfeng Ma , Keping Bi

Extracting structured information from unstructured text is critical for many downstream NLP applications and is traditionally achieved by closed information extraction (cIE). However, existing approaches for cIE suffer from two…

计算与语言 · 计算机科学 2024-04-22 Nacime Bouziani , Shubhi Tyagi , Joseph Fisher , Jens Lehmann , Andrea Pierleoni

Dimensionality reduction (DR) on the manifold includes effective methods which project the data from an implicit relational space onto a vectorial space. Regardless of the achievements in this area, these algorithms suffer from the lack of…

机器学习 · 计算机科学 2019-09-23 Babak Hosseini , Barbara Hammer

The collection and release of street-level recordings as Open Data play a vital role in advancing autonomous driving systems and AI research. However, these datasets pose significant privacy risks, particularly for pedestrians, due to the…

计算机视觉与模式识别 · 计算机科学 2025-07-16 Robert Aufschläger , Youssef Shoeb , Azarm Nowzad , Michael Heigl , Fabian Bally , Martin Schramm