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Classification involves the learning of the mapping function that associates input samples to corresponding target label. There are two major categories of classification problems: Single-label classification and Multi-label classification.…

Machine Learning · Computer Science 2016-09-06 Meng Joo Er , Rajasekar Venkatesan , Ning Wang

In spite of the high accuracy of the existing optical mark reading (OMR) systems and devices, a few restrictions remain existent. In this work, we aim to reduce the restrictions of multiple choice questions (MCQ) within tests. We use an…

Computer Vision and Pattern Recognition · Computer Science 2019-01-15 Mahmoud Afifi , Khaled F. Hussain

The essential task of verifying person identities at airports and national borders is very time consuming. To accelerate it, optical character recognition for identity documents (IDs) using dictionaries is not appropriate due to high…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Oliver Mothes , Joachim Denzler

Digital libraries often face the challenge of processing a large volume of diverse document types. The manual collection and tagging of metadata can be a time-consuming and error-prone task. To address this, we aim to develop an automatic…

Identifying outlier documents, whose content is different from the majority of the documents in a corpus, has played an important role to manage a large text collection. However, due to the absence of explicit information about the inlier…

Information Retrieval · Computer Science 2021-11-29 Dongha Lee , Dongmin Hyun , Jiawei Han , Hwanjo Yu

Content based Document Classification is one of the biggest challenges in the context of free text mining. Current algorithms on document classifications mostly rely on cluster analysis based on bag-of-words approach. However that method is…

Information Retrieval · Computer Science 2015-12-15 Koushiki Sarkar , Ritwika Law

Document content extraction is a critical task in computer vision, underpinning the data needs of large language models (LLMs) and retrieval-augmented generation (RAG) systems. Despite recent progress, current document parsing methods have…

Computer Vision and Pattern Recognition · Computer Science 2025-03-26 Linke Ouyang , Yuan Qu , Hongbin Zhou , Jiawei Zhu , Rui Zhang , Qunshu Lin , Bin Wang , Zhiyuan Zhao , Man Jiang , Xiaomeng Zhao , Jin Shi , Fan Wu , Pei Chu , Minghao Liu , Zhenxiang Li , Chao Xu , Bo Zhang , Botian Shi , Zhongying Tu , Conghui He

Out-of-distribution (OOD) detection is crucial for ensuring the reliability and safety of machine learning models in real-world applications. While zero-shot OOD detection, which requires no training on in-distribution (ID) data, has become…

Computer Vision and Pattern Recognition · Computer Science 2025-05-21 Yu Liu , Hao Tang , Haiqi Zhang , Jing Qin , Zechao Li

The lack of reliable sources of detailed information on the vulnerabilities of open-source software (OSS) components is a major obstacle to maintaining a secure software supply chain and an effective vulnerability management process.…

Cryptography and Security · Computer Science 2025-03-18 Antonino Sabetta , Michele Bezzi

In this paper we propose a new document classification method, bridging discrepancies (so-called semantic gap) between the training set and the application sets of textual data. We demonstrate its superiority over classical text…

Information Retrieval · Computer Science 2017-01-17 Piotr Borkowski , Krzysztof Ciesielski , Mieczysław A. Kłopotek

Document understanding refers to automatically extract, analyze and comprehend information from various types of digital documents, such as a web page. Existing Multi-model Large Language Models (MLLMs), including mPLUG-Owl, have…

Computation and Language · Computer Science 2023-07-07 Jiabo Ye , Anwen Hu , Haiyang Xu , Qinghao Ye , Ming Yan , Yuhao Dan , Chenlin Zhao , Guohai Xu , Chenliang Li , Junfeng Tian , Qian Qi , Ji Zhang , Fei Huang

We present OCR-Quality, a comprehensive human-annotated dataset designed for evaluating and developing OCR quality assessment methods. The dataset consists of 1,000 PDF pages converted to PNG images at 300 DPI, sampled from diverse…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Yulong Zhang

Large amount of unstructured designed information is difficult to deal with. Obtaining specific information is a hard mission and takes a lot of time. Information Retrieval System (IR) is a way to solve this kind of problem. IR is a good…

Information Retrieval · Computer Science 2018-04-03 Maher Abdullah , Mohammed GH. I. Al Zamil

Conventional Optical Character Recognition (OCR) systems are challenged by variant invoice layouts, handwritten text, and low-quality scans, which are often caused by strong template dependencies that restrict their flexibility across…

Computer Vision and Pattern Recognition · Computer Science 2026-01-09 Khushi Khanchandani , Advait Thakur , Akshita Shetty , Chaitravi Reddy , Ritisa Behera

Volume of text based documents have been increasing day by day. Medical documents are located within this growing text documents. In this study, the techniques used for text classification applied on medical documents and evaluated…

Information Retrieval · Computer Science 2018-11-05 Durmus Ozkan Sahin , Erdal Kilic

Machine learning-based techniques open up many opportunities and improvements to derive deeper and more practical insights from data that can help businesses make informed decisions. However, the majority of these techniques focus on the…

Machine Learning · Computer Science 2024-05-10 Atefeh Mahdavi , Marco Carvalho

This study presents a modular, multi-agent system for the automated review of highly structured enterprise business documents using AI agents. Unlike prior solutions focused on unstructured texts or limited compliance checks, this framework…

Computation and Language · Computer Science 2025-07-01 Sudip Dasgupta , Himanshu Shankar

This paper proposes OCR++, an open-source framework designed for a variety of information extraction tasks from scholarly articles including metadata (title, author names, affiliation and e-mail), structure (section headings and body text,…

This paper describe a methodology for semi-automatic classification schema definition (a classification schema is a taxonomy of categories useful for automatic document classification). The methodology is based on: (i) an extensional…

Other Computer Science · Computer Science 2009-10-06 Erika De Francesco , Salvatore Iiritano , Antonino Spagnolo , Marco Iannelli

Document categorization is a technique where the category of a document is determined. In this paper three well-known supervised learning techniques which are Support Vector Machine(SVM), Na\"ive Bayes(NB) and Stochastic Gradient…

Computation and Language · Computer Science 2017-01-31 Md. Saiful Islam , Fazla Elahi Md Jubayer , Syed Ikhtiar Ahmed