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Information Extraction from visual documents enables convenient and intelligent assistance to end users. We present a Neighborhood-based Information Extraction (NIE) approach that uses contextual language models and pays attention to the…

Machine Learning · Computer Science 2021-08-25 Kalpa Gunaratna , Vijay Srinivasan , Sandeep Nama , Hongxia Jin

Visual Question Answering (VQA) concerns providing answers to Natural Language questions about images. Several deep neural network approaches have been proposed to model the task in an end-to-end fashion. Whereas the task is grounded in…

Artificial Intelligence · Computer Science 2020-02-03 Mehrdad Alizadeh , Barbara Di Eugenio

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…

Computer Vision and Pattern Recognition · Computer Science 2022-08-08 Anurendra Kumar , Keval Morabia , Jingjin Wang , Kevin Chen-Chuan Chang , Alexander Schwing

Table Extraction (TE) consists in extracting tables from PDF documents, in a structured format which can be automatically processed. While numerous TE tools exist, the variety of methods and techniques makes it difficult for users to choose…

Databases · Computer Science 2025-11-21 Marijan Soric , Cécile Gracianne , Ioana Manolescu , Pierre Senellart

As a critical clue of video super-resolution (VSR), inter-frame alignment significantly impacts overall performance. However, accurate pixel-level alignment is a challenging task due to the intricate motion interweaving in the video. In…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Qi Tang , Yao Zhao , Meiqin Liu , Jian Jin , Chao Yao

Recently, automatically extracting information from visually rich documents (e.g., tickets and resumes) has become a hot and vital research topic due to its widespread commercial value. Most existing methods divide this task into two…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Zhanzhan Cheng , Peng Zhang , Can Li , Qiao Liang , Yunlu Xu , Pengfei Li , Shiliang Pu , Yi Niu , Fei Wu

A real-world information extraction (IE) system for semi-structured document images often involves a long pipeline of multiple modules, whose complexity dramatically increases its development and maintenance cost. One can instead consider…

Computation and Language · Computer Science 2021-08-31 Wonseok Hwang , Hyunji Lee , Jinyeong Yim , Geewook Kim , Minjoon Seo

Information extraction techniques, including named entity recognition (NER) and relation extraction (RE), are crucial in many domains to support making sense of vast amounts of unstructured text data by identifying and connecting relevant…

Computation and Language · Computer Science 2024-01-17 Mingjie Li , Karin Verspoor

Relation extraction (RE) aims to identify the semantic relations between named entities in text. Recent years have witnessed it raised to the document level, which requires complex reasoning with entities and mentions throughout an entire…

Computation and Language · Computer Science 2020-09-23 Difeng Wang , Wei Hu , Ermei Cao , Weijian Sun

Visual Information Extraction (VIE) plays a crucial role in the comprehension of semi-structured documents, and several pre-trained models have been developed to enhance performance. However, most of these works are monolingual (usually…

Computer Vision and Pattern Recognition · Computer Science 2024-12-20 Huawen Shen , Gengluo Li , Jinwen Zhong , Yu Zhou

Recent advancements in the area of Computer Vision with state-of-art Neural Networks has given a boost to Optical Character Recognition (OCR) accuracies. However, extracting characters/text alone is often insufficient for relevant…

Computer Vision and Pattern Recognition · Computer Science 2018-12-17 Vishwanath D , Rohit Rahul , Gunjan Sehgal , Swati , Arindam Chowdhury , Monika Sharma , Lovekesh Vig , Gautam Shroff , Ashwin Srinivasan

The interest in Artificial Intelligence (AI) and its applications has seen unprecedented growth in the last few years. The success can be partly attributed to the advancements of deep neural networks made in the sub-fields of AI such as…

Computer Vision and Pattern Recognition · Computer Science 2023-02-20 Xuewen Yang

Visual information extraction (VIE) plays an important role in Document Intelligence. Generally, it is divided into two tasks: semantic entity recognition (SER) and relation extraction (RE). Recently, pre-trained models for documents have…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 Chuwei Luo , Changxu Cheng , Qi Zheng , Cong Yao

Document-level relation extraction (RE) aims to extract the relations between entities from the input document that usually containing many difficultly-predicted entity pairs whose relations can only be predicted through relational…

Computation and Language · Computer Science 2022-11-29 Liang Zhang , Jinsong Su , Yidong Chen , Zhongjian Miao , Zijun Min , Qingguo Hu , Xiaodong Shi

Document-level information extraction (IE) is a crucial task in natural language processing (NLP). This paper conducts a systematic review of recent document-level IE literature. In addition, we conduct a thorough error analysis with…

Computation and Language · Computer Science 2023-09-26 Hanwen Zheng , Sijia Wang , Lifu Huang

The challenge of information extraction (IE) lies in the diversity of label schemas and the heterogeneity of structures. Traditional methods require task-specific model design and rely heavily on expensive supervision, making them difficult…

Computation and Language · Computer Science 2023-01-10 Jie Lou , Yaojie Lu , Dai Dai , Wei Jia , Hongyu Lin , Xianpei Han , Le Sun , Hua Wu

No existing dataset adequately tests how well language models can incrementally update entity summaries - a crucial ability as these models rapidly advance. The Incremental Entity Summarization (IES) task is vital for maintaining accurate,…

Computation and Language · Computer Science 2024-06-10 Eunjeong Hwang , Yichao Zhou , Beliz Gunel , James Bradley Wendt , Sandeep Tata

Information Extraction (IE) seeks to derive structured information from unstructured texts, often facing challenges in low-resource scenarios due to data scarcity and unseen classes. This paper presents a review of neural approaches to…

Computation and Language · Computer Science 2024-10-29 Shumin Deng , Yubo Ma , Ningyu Zhang , Yixin Cao , Bryan Hooi

Web-scale visual entity recognition, the task of associating images with their corresponding entities within vast knowledge bases like Wikipedia, presents significant challenges due to the lack of clean, large-scale training data. In this…

Computer Vision and Pattern Recognition · Computer Science 2024-11-01 Mathilde Caron , Alireza Fathi , Cordelia Schmid , Ahmet Iscen

Extracting biomedical relations from large corpora of scientific documents is a challenging natural language processing task. Existing approaches usually focus on identifying a relation either in a single sentence (mention-level) or across…

Computation and Language · Computer Science 2020-11-23 Harshil Shah , Julien Fauqueur