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This paper addresses a major challenge to historical research on the 19th century. Large quantities of sources have become digitally available for the first time, while extraction techniques are lagging behind. Therefore, we researched…

Computer Vision and Pattern Recognition · Computer Science 2024-01-17 David Fleischhacker , Wolfgang Goederle , Roman Kern

Information Extraction from visually rich documents is a challenging task that has gained a lot of attention in recent years due to its importance in several document-control based applications and its widespread commercial value. The…

Computer Vision and Pattern Recognition · Computer Science 2023-05-03 Mohamed Dhouib , Ghassen Bettaieb , Aymen Shabou

Compression is beneficial because it helps detract resource usage. It reduces data storage space as well as transmission traffic and improves web pages loading. Run-length coding (RLC) is a lossless data compression algorithm. Data are…

Data Structures and Algorithms · Computer Science 2016-11-30 Kaveh Geyratmand Haghighi , Mirkamal Mirnia , Ahmad Habibizad Navin

Document comparison typically relies on optical character recognition (OCR) as its core technology. However, OCR requires the selection of appropriate language models for each document and the performance of multilingual or hybrid models…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Doyoung Park , Naresh Reddy Yarram , Sunjin Kim , Minkyu Kim , Seongho Cho , Taehee Lee

Crowdsourcing is becoming increasingly important in entity resolution tasks due to their inherent complexity such as clustering of images and natural language processing. Humans can provide more insightful information for these difficult…

Databases · Computer Science 2017-08-28 Vijaya Krishna Yalavarthi , Xiangyu Ke , Arijit Khan

We consider the problem of optimal budget allocation for crowdsourcing problems, allocating users to tasks to maximize our final confidence in the crowdsourced answers. Such an optimized worker assignment method allows us to boost the…

Machine Learning · Computer Science 2017-02-28 Angela Zhou , Irineo Cabreros , Karan Singh

Crowdsourcing has been widely used to efficiently obtain labeled datasets for supervised learning from large numbers of human resources at low cost. However, one of the technical challenges in obtaining high-quality results from…

Human-Computer Interaction · Computer Science 2023-02-28 Ryosuke Ueda , Koh Takeuchi , Hisashi Kashima

The ubiquity of smartphone cameras has led to more and more documents being captured by cameras rather than scanned. Unlike flatbed scanners, photographed documents are often folded and crumpled, resulting in large local variance in text…

Computer Vision and Pattern Recognition · Computer Science 2020-08-06 Amir Markovitz , Inbal Lavi , Or Perel , Shai Mazor , Roee Litman

This paper explores the use of a learned classifier for post-OCR text correction. Experiments with the Arabic language show that this approach, which integrates a weighted confusion matrix and a shallow language model, improves the vast…

Information Retrieval · Computer Science 2020-06-11 Ido Kissos , Nachum Dershowitz

We present and analyze results from a pilot study that explores how crowdsourcing can be used in the process of generating distractors (incorrect answer choices) in multiple-choice concept inventories (conceptual tests of understanding). To…

Human-Computer Interaction · Computer Science 2019-09-11 Travis Scheponik , Enis Golaszewski , Geoffrey Herman , Spencer Offenberger , Linda Oliva , Peter A. H. Peterson , Alan T. Sherman

As the size of the datasets getting larger, accurately annotating such datasets is becoming more impractical due to the expensiveness on both time and economy. Therefore, crowd-sourcing has been widely adopted to alleviate the cost of…

Machine Learning · Computer Science 2024-02-21 Hansong Zhang , Shikun Li , Dan Zeng , Chenggang Yan , Shiming Ge

Traditional approaches for ensuring high quality crowdwork have failed to achieve high-accuracy on difficult problems. Aggregating redundant answers often fails on the hardest problems when the majority is confused. Argumentation has been…

Human-Computer Interaction · Computer Science 2018-10-26 Quanze Chen , Jonathan Bragg , Lydia B. Chilton , Daniel S. Weld

Iterating with new and improved OCR solutions enforces decision making when it comes to targeting the right candidates for reprocessing. This especially applies when the underlying data collection is of considerable size and rather diverse…

Computation and Language · Computer Science 2023-06-22 Pit Schneider , Yves Maurer

Post-OCR processing has significantly improved over the past few years. However, these have been primarily beneficial for texts consisting of natural, alphabetical words, as opposed to documents of numerical nature such as invoices,…

Computation and Language · Computer Science 2023-07-04 Arthur Hemmer , Jérôme Brachat , Mickaël Coustaty , Jean-Marc Ogier

Much of the existing linguistic data in many languages of the world is locked away in non-digitized books and documents. Optical character recognition (OCR) can be used to produce digitized text, and previous work has demonstrated the…

Computation and Language · Computer Science 2021-11-05 Shruti Rijhwani , Daisy Rosenblum , Antonios Anastasopoulos , Graham Neubig

Autonomous LLM agents increasingly operate in long-horizon, interactive settings where success depends on reusing experience accumulated over extended histories. However, existing agent memory systems are fundamentally constrained by…

Computation and Language · Computer Science 2026-04-30 Jinze Li , Yang Zhang , Xin Yang , Jiayi Qu , Jinfeng Xu , Shuo Yang , Junhua Ding , Edith Cheuk-Han Ngai

The development of large vision language models drives the demand for managing, and applying massive amounts of multimodal data, making OCR technology, which extracts information from visual images, increasingly popular. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2026-02-05 Yufeng Zhong , Lei Chen , Xuanle Zhao , Wenkang Han , Liming Zheng , Jing Huang , Deyang Jiang , Yilin Cao , Lin Ma , Zhixiong Zeng

The digitisation of historical documents has provided historians with unprecedented research opportunities. Yet, the conventional approach to analysing historical documents involves converting them from images to text using OCR, a process…

Computation and Language · Computer Science 2023-11-07 Nadav Borenstein , Phillip Rust , Desmond Elliott , Isabelle Augenstein

Historical documents represent an invaluable cultural heritage, yet have undergone significant degradation over time through tears, water erosion, and oxidation. Existing Historical Document Restoration (HDR) methods primarily focus on…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Yuyi Zhang , Peirong Zhang , Zhenhua Yang , Pengyu Yan , Yongxin Shi , Pengwei Liu , Fengjun Guo , Lianwen Jin
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