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Document retrieval systems have experienced a revitalized interest with the advent of retrieval-augmented generation (RAG). RAG architecture offers a lower hallucination rate than LLM-only applications. However, the accuracy of the…

信息检索 · 计算机科学 2024-08-21 Kavsar Huseynova , Jafar Isbarov

Retrieval-augmented generation (RAG) systems have predominantly focused on text-based retrieval, limiting their effectiveness in handling visually-rich documents that encompass text, images, tables, and charts. To bridge this gap, we…

信息检索 · 计算机科学 2025-05-07 Mingjun Xu , Zehui Wang , Hengxing Cai , Renxin Zhong

In this paper, the task of recognizing signs made by hearing impaired people at sentence level has been addressed. A novel method of extracting spatial features to capture hand movements of a signer has been proposed. Frames of a given…

计算机视觉与模式识别 · 计算机科学 2016-10-26 B. M. Chethana Kumara , H. S. Nagendraswamy , R. Lekha Chinmayi

State-of-the-art methods for handwriting recognition are based on Long Short Term Memory (LSTM) recurrent neural networks (RNN), which now provides very impressive character recognition performance. The character recognition is generally…

计算机视觉与模式识别 · 计算机科学 2017-09-26 Bruno Stuner , Clément Chatelain , Thierry Paquet

Digitized archives contain and preserve the knowledge of generations of scholars in millions of documents. The size of these archives calls for automatic analysis since a manual analysis by specialists is often too expensive. In this paper,…

计算机视觉与模式识别 · 计算机科学 2020-11-05 Christian Bartz , Hendrik Rätz , Christoph Meinel

Developing an automatic signature verification system is challenging and demands a large number of training samples. This is why synthetic handwriting generation is an emerging topic in document image analysis. Some handwriting synthesizers…

The existing image feature extraction methods are primarily based on the content and structure information of images, and rarely consider the contextual semantic information. Regarding some types of images such as scenes and objects, the…

计算机视觉与模式识别 · 计算机科学 2020-01-23 Chiranjibi Sitaula , Yong Xiang , Anish Basnet , Sunil Aryal , Xuequan Lu

Segmentation of a text-document into lines, words and characters, which is considered to be the crucial pre-processing stage in Optical Character Recognition (OCR) is traditionally carried out on uncompressed documents, although most of the…

计算机视觉与模式识别 · 计算机科学 2014-04-01 Mohammed Javed , P. Nagabhushan , B. B. Chaudhuri

In this paper, we use statistical texture features for handwritten and printed text classification. We primarily aim for word level classification in south Indian scripts. Words are first extracted from the scanned document. For each…

计算机视觉与模式识别 · 计算机科学 2013-04-11 Mallikarjun Hangarge , K. C. Santosh , Srikanth Doddamani , Rajmohan Pardeshi

A prototype system for the transliteration of diacritics-less Arabic manuscripts at the sub-word or part of Arabic word (PAW) level is developed. The system is able to read sub-words of the input manuscript using a set of skeleton-based…

计算机视觉与模式识别 · 计算机科学 2013-06-27 Reza Farrahi Moghaddam , Mohamed Cheriet , Thomas Milo , Robert Wisnovsky

The area of Handwritten Signature Verification has been broadly researched in the last decades, but remains an open research problem. The objective of signature verification systems is to discriminate if a given signature is genuine…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Luiz G. Hafemann , Robert Sabourin , Luiz S. Oliveira

Despite the loss of semantic information, bag-of-ngram based methods still achieve state-of-the-art results for tasks such as sentiment classification of long movie reviews. Many document embeddings methods have been proposed to capture…

计算与语言 · 计算机科学 2016-04-26 Bofang Li , Tao Liu , Xiaoyong Du , Deyuan Zhang , Zhe Zhao

Document classification is considered a critical element in automated document processing systems. In recent years multi-modal approaches have become increasingly popular for document classification. Despite their improvements, these…

计算机视觉与模式识别 · 计算机科学 2024-12-16 Umar Khan , Saifullah , Stefan Agne , Andreas Dengel , Sheraz Ahmed

Keyphrase extraction from documents is useful to a variety of applications such as information retrieval and document summarization. This paper presents an end-to-end method called DivGraphPointer for extracting a set of diversified…

计算与语言 · 计算机科学 2019-05-21 Zhiqing Sun , Jian Tang , Pan Du , Zhi-Hong Deng , Jian-Yun Nie

This paper presents an accurate method for verifying online signatures. The main difficulty of signature verification come from: (1) Lacking enough training samples (2) The methods must be spatial change invariant. To deal with these…

计算机视觉与模式识别 · 计算机科学 2018-06-27 Mohammad Hajizadeh Saffar , Mohsen Fayyaz , Mohammad Sabokrou , Mahmood Fathy

Since the low quality of document images will greatly undermine the chances of success in automatic text recognition and analysis, it is necessary to assess the quality of document images uploaded in online business process, so as to reject…

计算机视觉与模式识别 · 计算机科学 2019-06-06 Hongyu Li , Fan Zhu , Junhua Qiu

We address the problem of segmenting and retrieving word images in collections of historical manuscripts given a text query. This is commonly referred to as "word spotting". To this end, we first propose an end-to-end trainable model based…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Tomas Wilkinson , Jonas Lindström , Anders Brun

Despite the growing adoption of electronic health records, many processes still rely on paper documents, reflecting the heterogeneous real-world conditions in which healthcare is delivered. The manual transcription process is time-consuming…

Over the past decade, machine learning methods have given us driverless cars, voice recognition, effective web search, and a much better understanding of the human genome. Machine learning is so common today that it is used dozens of times…

计算机视觉与模式识别 · 计算机科学 2021-06-22 Omer Aydin

Textual data such as tags, sentence descriptions are combined with visual cues to reduce the semantic gap for image retrieval applications in today's Multimodal Image Retrieval (MIR) systems. However, all tags are treated as equally…

计算机视觉与模式识别 · 计算机科学 2017-01-11 Shangwen Li , Sanjay Purushotham , Chen Chen , Yuzhuo Ren , C. -C. Jay Kuo