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Related papers: Automatic Thresholding of SIFT Descriptors

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Approximate dictionary matching is a classic string matching problem (checking if a query string occurs in a collection of strings) with applications in, e.g., spellchecking, online catalogs, geolocation, and web searchers. We present a…

Data Structures and Algorithms · Computer Science 2016-02-15 Aleksander Cisłak , Szymon Grabowski

Fabric defect detection is a crucial quality control step in the textile manufacturing industry. In this article, machine vision system based on the Sylvester Matrix Based Similarity Method (SMBSM) is proposed to automate the defect…

Computer Vision and Pattern Recognition · Computer Science 2021-01-22 R. M. L. N. Kumari , G. A. C. T. Bandara , Maheshi B. Dissanayake

In this paper I have proposed a method to find the major pixel intensity inside the text and thresholding an image accordingly to make it easier to be used for optical character recognition (OCR) models. In our method, instead of editing…

Computer Vision and Pattern Recognition · Computer Science 2022-02-10 Rohan Lal Kshetry

The identification of performance-optimizing parameter settings is an important part of the development and application of algorithms. We describe an automatic framework for this algorithm configuration problem. More formally, we provide…

Artificial Intelligence · Computer Science 2014-01-16 Frank Hutter , Thomas Stuetzle , Kevin Leyton-Brown , Holger H. Hoos

Definitions are the foundation for any scientific work, but with a significant increase in publication numbers, gathering definitions relevant to any keyword has become challenging. We therefore introduce SciDef, an LLM-based pipeline for…

Information Retrieval · Computer Science 2026-02-06 Filip Kučera , Christoph Mandl , Isao Echizen , Radu Timofte , Timo Spinde

While Supervised Fine-Tuning (SFT) and Rejection Sampling Fine-Tuning (RFT) are standard for LLM alignment, they either rely on costly expert data or discard valuable negative samples, leading to data inefficiency. To address this, we…

Machine Learning · Computer Science 2026-04-24 Zehua Liu , Shuqi Liu , Tao Zhong , Mingxuan Yuan

We propose a novel method for selective classification (SC), a problem which allows a classifier to abstain from predicting some instances, thus trading off accuracy against coverage (the fraction of instances predicted). In contrast to…

Machine Learning · Computer Science 2021-10-26 Aditya Gangrade , Anil Kag , Venkatesh Saligrama

This paper describes the search for an alternative approach to the automatic categorization of camera trap images. First, we benchmark state-of-the-art classifiers using a single model for all images. Next, we evaluate methods combining…

Computer Vision and Pattern Recognition · Computer Science 2024-10-17 Jiří Vyskočil , Lukas Picek

We introduce a novel loss for learning local feature descriptors which is inspired by the Lowe's matching criterion for SIFT. We show that the proposed loss that maximizes the distance between the closest positive and closest negative patch…

Computer Vision and Pattern Recognition · Computer Science 2018-01-15 Anastasiya Mishchuk , Dmytro Mishkin , Filip Radenovic , Jiri Matas

Recent algorithms for image manipulation detection almost exclusively use deep network models. These approaches require either dense pixelwise groundtruth masks, camera ids, or image metadata to train the networks. On one hand, constructing…

Computer Vision and Pattern Recognition · Computer Science 2022-03-16 Susmit Agrawal , Prabhat Kumar , Siddharth Seth , Toufiq Parag , Maneesh Singh , Venkatesh Babu

This work proposes a multi-image matching method to estimate semantic correspondences across multiple images. In contrast to the previous methods that optimize all pairwise correspondences, the proposed method identifies and matches only a…

Computer Vision and Pattern Recognition · Computer Science 2018-05-02 Qianqian Wang , Xiaowei Zhou , Kostas Daniilidis

We aim to create the highest possible quality of treatment-control matches for categorical data in the potential outcomes framework. Matching methods are heavily used in the social sciences due to their interpretability, but most matching…

Machine Learning · Statistics 2019-06-11 Yameng Liu , Aw Dieng , Sudeepa Roy , Cynthia Rudin , Alexander Volfovsky

Semi-supervised Learning (SSL) has witnessed great success owing to the impressive performances brought by various methods based on pseudo labeling and consistency regularization. However, we argue that existing methods might fail to…

In this paper, we propose a simple way to utilize stereo camera data to improve feature descriptors. Computer vision algorithms that use a stereo camera require some calculations of 3D information. We leverage this pre-calculated…

Computer Vision and Pattern Recognition · Computer Science 2018-09-25 Ehsan Shojaedini , Reza Safabakhsh

Explainable object recognition using vision-language models such as CLIP involves predicting accurate category labels supported by rationales that justify the decision-making process. Existing methods typically rely on prompt-based…

Computer Vision and Pattern Recognition · Computer Science 2025-08-21 Ali Rasekh , Sepehr Kazemi Ranjbar , Simon Gottschalk

Multi-domain text classification can automatically classify texts in various scenarios. Due to the diversity of human languages, texts with the same label in different domains may differ greatly, which brings challenges to the multi-domain…

Computation and Language · Computer Science 2022-04-27 Xuefeng Li , Hao Lei , Liwen Wang , Guanting Dong , Jinzheng Zhao , Jiachi Liu , Weiran Xu , Chunyun Zhang

Feature selection, dimension selection, and embedding compression are fundamental techniques for improving efficiency and generalization in deep recommender systems. Although conceptually related, these problems are typically studied in…

Machine Learning · Computer Science 2026-04-10 Yihong Huang , Chen Chu , Fan Zhang , Liping Wang Fei Chen , Yu Lin , Ruiduan Li , Zhihao Li

Prompt Tuning has emerged as a prominent research paradigm for adapting vision-language models to various downstream tasks. However, recent research indicates that prompt tuning methods often lead to overfitting due to limited training…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Jingchen Sun , Rohan Sharma , Vishnu Suresh Lokhande , Changyou Chen

This paper introduces SelfMatch, a semi-supervised learning method that combines the power of contrastive self-supervised learning and consistency regularization. SelfMatch consists of two stages: (1) self-supervised pre-training based on…

Machine Learning · Computer Science 2021-01-19 Byoungjip Kim , Jinho Choo , Yeong-Dae Kwon , Seongho Joe , Seungjai Min , Youngjune Gwon

Image classifiers are information-discarding machines, by design. Yet, how these models discard information remains mysterious. We hypothesize that one way for image classifiers to reach high accuracy is to first zoom to the most…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Mohammad Reza Taesiri , Giang Nguyen , Sarra Habchi , Cor-Paul Bezemer , Anh Nguyen