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Item Response Theory (IRT) and Factor Analysis (FA) are two major frameworks used to model multi-item measurements of latent traits. While the relationship between two-parameter IRT models and dichotomized FA models is well established, IRT…

Methodology · Statistics 2025-07-03 Ján Pavlech , Patrícia Martinková

We illustrate a class of Item Response Theory (IRT) models for binary and ordinal polythomous items and we describe an R package for dealing with these models, which is named MultiLCIRT. The models at issue extend traditional IRT models…

Applications · Statistics 2012-10-22 Francesco Bartolucci , Silvia Bacci , Michela Gnaldi

Thousands of diverse benchmarks have been developed to measure the quality of large language models (LLMs). Yet prior work has demonstrated that LLM performance is often sufficiently explained by a small set of latent factors, or abilities.…

Computation and Language · Computer Science 2026-04-03 Michael Krumdick , Adam Wiemerslage , Seth Ebner , Charles Lovering , Chris Tanner

Reinforcement Learning (RL) is a rapidly growing area of machine learning that finds its application in a broad range of domains, from finance and healthcare to robotics and gaming. Compared to other machine learning techniques, RL agents…

Artificial Intelligence · Computer Science 2024-11-14 Geetansh Kalra , Divye Singh , Justin Jose

Measures of face-identification proficiency are essential to ensure accurate and consistent performance by professional forensic face examiners and others who perform face-identification tasks in applied scenarios. Current proficiency tests…

Computer Vision and Pattern Recognition · Computer Science 2023-06-14 Géraldine Jeckeln , Ying Hu , Jacqueline G. Cavazos , Amy N. Yates , Carina A. Hahn , Larry Tang , P. Jonathon Phillips , Alice J. O'Toole

Large language models (LLMs) achieve high performance on mathematical reasoning, but these results can be inflated by training data leakage or superficial pattern matching rather than genuine reasoning. To this end, an adversarial…

Computation and Language · Computer Science 2026-02-03 Xinyuan Li , Murong Xu , Wenbiao Tao , Hanlun Zhu , Yike Zhao , Jipeng Zhang , Yunshi Lan

Recently, pre-trained language models such as BERT have been applied to document ranking for information retrieval, which first pre-train a general language model on an unlabeled large corpus and then conduct ranking-specific fine-tuning on…

Information Retrieval · Computer Science 2021-08-13 Lin Bo , Liang Pang , Gang Wang , Jun Xu , XiuQiang He , Ji-Rong Wen

Marginal maximum likelihood estimation (MMLE) in item response theory (IRT) is highly sensitive to aberrant responses, such as careless answering and random guessing, which can reduce estimation accuracy. To address this issue, this study…

Methodology · Statistics 2025-02-18 Yuki Itaya , Kenichi Hayashi

Humans can observe a single, imperfect demonstration and immediately generalize to very different problem settings. Robots, in contrast, often require hundreds of examples and still struggle to generalize beyond the training conditions. We…

Robotics · Computer Science 2025-08-13 Ben Zandonati , Tomás Lozano-Pérez , Leslie Pack Kaelbling

Interpretable Learning to Rank (LtR) is an emerging field within the research area of explainable AI, aiming at developing intelligible and accurate predictive models. While most of the previous research efforts focus on creating post-hoc…

Information Retrieval · Computer Science 2022-06-02 Claudio Lucchese , Franco Maria Nardini , Salvatore Orlando , Raffaele Perego , Alberto Veneri

Computer vision has undergone a dramatic revolution in performance, driven in large part through deep features trained on large-scale supervised datasets. However, much of these improvements have focused on static image analysis; video…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Rohit Girdhar , Deva Ramanan

Currently, large vision-language models have gained promising progress on many downstream tasks. However, they still suffer many challenges in fine-grained visual understanding tasks, such as object attribute comprehension. Besides, there…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Haiwen Zhang , Zixi Yang , Yuanzhi Liu , Xinran Wang , Zheqi He , Kongming Liang , Zhanyu Ma

To learn about real world phenomena, scientists have traditionally used models with clearly interpretable elements. However, modern machine learning (ML) models, while powerful predictors, lack this direct elementwise interpretability (e.g.…

Machine Learning · Statistics 2024-07-16 Timo Freiesleben , Gunnar König , Christoph Molnar , Alvaro Tejero-Cantero

Inspired by human categorization, object property reasoning involves identifying and recognizing low-level details and higher-level abstractions. While current visual question answering (VQA) studies consider multiple object properties,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Abhishek Kolari , Mohammadhossein Khojasteh , Yifan Jiang , Floris den Hengst , Filip Ilievski

An information-theoretic framework is introduced to analyze last-layer embedding, focusing on learned representations for regression tasks. We define representation-rate and derive limits on the reliability with which input-output…

Information Theory · Computer Science 2026-05-27 Deborah Pereg , Michael Wand

The success of deep learning in computer vision has been driven by models of increasing scale, from deep Convolutional Neural Networks (CNN) to large Vision Transformers (ViT). While effective, these architectures are parameter-intensive…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Ange-Clément Akazan , Abdoulaye Koroko , Verlon Roel Mbingui , Choukouriyah Arinloye , Hassan Fifen , Rose Bandolo

Item response theory (IRT) is a popular modeling paradigm for measuring subject latent traits and item properties according to discrete responses in tests or questionnaires. There are very limited discussions on heterogeneity pattern…

Applications · Statistics 2020-06-02 Guanyu Hu , Zhihua Ma , Insu Paek

We address the problem of learning a single model for person re-identification, attribute classification, body part segmentation, and pose estimation. With predictions for these tasks we gain a more holistic understanding of persons, which…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Kilian Pfeiffer , Alexander Hermans , István Sárándi , Mark Weber , Bastian Leibe

Modelling the mapping from scene irradiance to image intensity is essential for many computer vision tasks. Such mapping is known as the camera response. Most digital cameras use a nonlinear function to map irradiance, as measured by the…

Computer Vision and Pattern Recognition · Computer Science 2022-09-09 Yunfeng Zhao , Stuart Ferguson , Huiyu Zhou , Karen Rafferty

The article considers the quantitative assessment approach to the innovativeness of different objects. The proposed assessment model is based on the object data retrieval from various databases including the Internet. We present an object…

Digital Libraries · Computer Science 2021-03-31 V. K. Ivanov
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