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A large body of research in machine learning is concerned with supervised learning from examples. The examples are typically represented as vectors in a multi-dimensional feature space (also known as attribute-value descriptions). A teacher…

Machine Learning · Computer Science 2007-05-23 Peter D. Turney

Feature selection is crucial for pinpointing relevant features in high-dimensional datasets, mitigating the 'curse of dimensionality,' and enhancing machine learning performance. Traditional feature selection methods for classification use…

Machine Learning · Computer Science 2025-04-08 Rittwika Kansabanik , Adrian Barbu

An important approach for efficient inference in probabilistic graphical models exploits symmetries among objects in the domain. Symmetric variables (states) are collapsed into meta-variables (meta-states) and inference algorithms are run…

Artificial Intelligence · Computer Science 2016-07-01 Ankit Anand , Aditya Grover , Mausam , Parag Singla

Protecting Personal Identifiable Information (PII) in text data is crucial for privacy, but current PII generalization methods face challenges such as uneven data distributions and limited context awareness. To address these issues, we…

Computation and Language · Computer Science 2024-07-04 Kailin Zhang , Xinying Qiu

In many real-world machine learning problems, feature values are not readily available. To make predictions, some of the missing features have to be acquired, which can incur a cost in money, computational time, or human time, depending on…

Machine Learning · Computer Science 2019-12-20 Kimmo Kärkkäinen , Mohammad Kachuee , Orpaz Goldstein , Majid Sarrafzadeh

Meta-gradient methods (Xu et al., 2018; Zahavy et al., 2020) offer a promising solution to the problem of hyperparameter selection and adaptation in non-stationary reinforcement learning problems. However, the properties of meta-gradients…

Machine Learning · Computer Science 2022-09-14 Jelena Luketina , Sebastian Flennerhag , Yannick Schroecker , David Abel , Tom Zahavy , Satinder Singh

Scene Text Recognition (STR) models have achieved high performance in recent years on benchmark datasets where text images are presented with minimal noise. Traditional STR recognition pipelines take a cropped image as sole input and…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Joshua Cesare Placidi , Yishu Miao , Zixu Wang , Lucia Specia

Deep learning is being used extensively in a variety of software engineering tasks, e.g., program classification and defect prediction. Although the technique eliminates the required process of feature engineering, the construction of…

Software Engineering · Computer Science 2021-11-24 Zhehao Zhao , Bo Yang , Ge Li , Huai Liu , Zhi Jin

Scene recognition is currently one of the top-challenging research fields in computer vision. This may be due to the ambiguity between classes: images of several scene classes may share similar objects, which causes confusion among them.…

Computer Vision and Pattern Recognition · Computer Science 2020-02-28 Alejandro López-Cifuentes , Marcos Escudero-Viñolo , Jesús Bescós , Álvaro García-Martín

Convolutional neural networks (CNNs) have been recently used for a variety of histology image analysis. However, availability of a large dataset is a major prerequisite for training a CNN which limits its use by the computational pathology…

Computer Vision and Pattern Recognition · Computer Science 2018-03-07 Ruqayya Awan , Navid Alemi Koohbanani , Muhammad Shaban , Anna Lisowska , Nasir Rajpoot

Contextual information plays a critical role in object recognition models within computer vision, where changes in context can significantly affect accuracy, underscoring models' dependence on contextual cues. This study investigates how…

Computer Vision and Pattern Recognition · Computer Science 2024-11-06 Sayanta Adhikari , Rishav Kumar , Konda Reddy Mopuri , Rajalakshmi Pachamuthu

In this work, we introduce the notion of Context-Based Prediction Models. A Context-Based Prediction Model determines the probability of a user's action (such as a click or a conversion) solely by relying on user and contextual features,…

Information Retrieval · Computer Science 2023-08-03 Jan Hartman , Assaf Klein , Davorin Kopič , Natalia Silberstein

We address the problem of policy selection in contextual stochastic optimization (CSO), where covariates are available as contextual information and decisions must satisfy hard feasibility constraints. In many CSO settings, multiple…

Machine Learning · Computer Science 2026-05-29 Caio de Prospero Iglesias , Kimberly Villalobos Carballo , Dimitris Bertsimas

Convolutional Neural Networks experience catastrophic forgetting when optimized on a sequence of learning problems: as they meet the objective of the current training examples, their performance on previous tasks drops drastically. In this…

Computer Vision and Pattern Recognition · Computer Science 2020-04-02 Davide Abati , Jakub Tomczak , Tijmen Blankevoort , Simone Calderara , Rita Cucchiara , Babak Ehteshami Bejnordi

Survey data can contain a high number of features while having a comparatively low quantity of examples. Machine learning models that attempt to predict outcomes from survey data under these conditions can overfit and result in poor…

Computation and Language · Computer Science 2023-08-22 Benjamin C. Warner , Ziqi Xu , Simon Haroutounian , Thomas Kannampallil , Chenyang Lu

Contextual bandits are widely used in industrial personalization systems. These online learning frameworks learn a treatment assignment policy in the presence of treatment effects that vary with the observed contextual features of the…

Machine Learning · Computer Science 2022-05-11 Claudia Roberts , Maria Dimakopoulou , Qifeng Qiao , Ashok Chandrashekhar , Tony Jebara

Variable selection poses a significant challenge in causal modeling, particularly within the social sciences, where constructs often rely on inter-related factors such as age, socioeconomic status, gender, and race. Indeed, it has been…

Methodology · Statistics 2025-03-18 Jingzhou Huang , Jiuyao Lu , Alexander Williams Tolbert

A key challenge in reward learning from human input is that desired agent behavior often changes based on context. For example, a robot must adapt to avoid a stove once it becomes hot. We observe that while high-level preferences (e.g.,…

Robotics · Computer Science 2026-01-14 Alexandra Forsey-Smerek , Julie Shah , Andreea Bobu

We investigate the reasons why context in object detection has limited utility by isolating and evaluating the predictive power of different context cues under ideal conditions in which context provided by an oracle. Based on this study, we…

Computer Vision and Pattern Recognition · Computer Science 2016-09-13 Ruichi Yu , Xi Chen , Vlad I. Morariu , Larry S. Davis

Personalized news recommendation aims to provide attractive articles for readers by predicting their likelihood of clicking on a certain article. To accurately predict this probability, plenty of studies have been proposed that actively…

Information Retrieval · Computer Science 2021-12-30 Sungmin Cho , Hongjun Lim , Keunchan Park , Sungjoo Yoo , Eunhyeok Park