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Multimarginal optimal transport (MOT) is a powerful framework for modeling interactions between multiple distributions, yet its applicability is bottlenecked by a high computational overhead. Entropic regularization provides computational…

Machine Learning · Computer Science 2025-06-03 Dor Tsur , Ziv Goldfeld , Kristjan Greenewald , Haim Permuter

Automatic text classification (TC) research can be used for real-world problems such as the classification of in-patient discharge summaries and medical text reports, which is beneficial to make medical documents more understandable to…

Computation and Language · Computer Science 2018-12-06 Ying Shen , Qiang Zhang , Jin Zhang , Jiyue Huang , Yuming Lu , Kai Lei

Semantic communication is a novel communication paradigm that focuses on conveying the user's intended meaning rather than the bit-wise transmission of source signals. One of the key challenges is to effectively represent and extract the…

Information Theory · Computer Science 2026-05-08 Jingxuan Chai , Yong Xiao , Guangming Shi

Many practical applications require training of semantic segmentation models on unlabelled datasets and their execution on low-resource hardware. Distillation from a trained source model may represent a solution for the first but does not…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Claudia Cuttano , Antonio Tavera , Fabio Cermelli , Giuseppe Averta , Barbara Caputo

We investigate the task of object goal navigation in unknown environments where the target is specified by a semantic label (e.g. find a couch). Such a navigation task is especially challenging as it requires understanding of semantic…

Robotics · Computer Science 2022-10-18 Yash Goel , Narunas Vaskevicius , Luigi Palmieri , Nived Chebrolu , Cyrill Stachniss

We propose methods that enable efficient hierarchical classification in parallel. Our methods transform a batch of classification scores and labels, corresponding to given nodes in a semantic tree, to scores and labels corresponding to all…

Machine Learning · Computer Science 2022-09-22 Franz A. Heinsen

Deep neural networks have improved image classification dramatically over the past decade, but have done so by focusing on performance measures that treat all classes other than the ground truth as equally wrong. This has led to a situation…

Computer Vision and Pattern Recognition · Computer Science 2020-06-15 Luca Bertinetto , Romain Mueller , Konstantinos Tertikas , Sina Samangooei , Nicholas A. Lord

Recently, Neural Topic Models (NTMs) inspired by variational autoencoders have obtained increasingly research interest due to their promising results on text analysis. However, it is usually hard for existing NTMs to achieve good document…

Information Retrieval · Computer Science 2022-06-01 He Zhao , Dinh Phung , Viet Huynh , Trung Le , Wray Buntine

Soft targets combined with the cross-entropy loss have shown to improve generalization performance of deep neural networks on supervised classification tasks. The standard cross-entropy loss however assumes data to be categorically…

Machine Learning · Computer Science 2024-07-16 Johannes Hugger , Virginie Uhlmann

This paper describes one objective function for learning semantically coherent feature embeddings in multi-output classification problems, i.e., when the response variables have dimension higher than one. In particular, we consider the…

Computer Vision and Pattern Recognition · Computer Science 2020-03-23 Hugo Proença , Ehsan Yaghoubi , Pendar Alirezazadeh

Handwritten Text Recognition (HTR) is a task of central importance in the field of document image understanding. State-of-the-art methods for HTR require the use of extensive annotated sets for training, making them impractical for…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Petros Georgoulas Wraight , Giorgos Sfikas , Ioannis Kordonis , Petros Maragos , George Retsinas

Data privacy concerns often prevent the use of cloud-based machine learning services for sensitive personal data. While homomorphic encryption (HE) offers a potential solution by enabling computations on encrypted data, the challenge is to…

Cryptography and Security · Computer Science 2021-03-08 Kanthi Sarpatwar , Karthik Nandakumar , Nalini Ratha , James Rayfield , Karthikeyan Shanmugam , Sharath Pankanti , Roman Vaculin

Optimal Transport (OT) theory investigates the cost-minimizing transport map that moves a source distribution to a target distribution. Recently, several approaches have emerged for learning the optimal transport map for a given cost…

Machine Learning · Computer Science 2025-04-01 Jaemoo Choi , Yongxin Chen , Jaewoong Choi

Today's mobile robots are expected to operate in complex environments they share with humans. To allow intuitive human-robot collaboration, robots require a human-like understanding of their surroundings in terms of semantically classified…

Computer Vision and Pattern Recognition · Computer Science 2020-01-14 Markus Hiller , Chen Qiu , Florian Particke , Christian Hofmann , Jörn Thielecke

Merge trees are fundamental structures in topological data analysis. Interleaving distance is a widely accepted metric for comparing merge trees, with applications in visualization and scientific computing. While a greedy algorithm exists…

Computational Geometry · Computer Science 2025-09-22 Elena Farahbakhsh Touli , Talha Bin Masood

The Classification Tree (CT) is one of the most common models in interpretable machine learning. Although such models are usually built with greedy strategies, in recent years, thanks to remarkable advances in Mixer-Integer Programming…

Machine Learning · Statistics 2023-12-08 Tommaso Aldinucci , Matteo Lapucci

Out-of-Distribution (OOD) detection is a cornerstone for the safe deployment of AI systems in the open world. However, existing methods treat OOD detection as a binary classification problem, a cognitive flattening that fails to distinguish…

Machine Learning · Statistics 2025-10-16 Ningkang Peng , Yuzhe Mao , Yuhao Zhang , Linjin Qian , Qianfeng Yu , Yanhui Gu , Yi Chen , Li Kong

Recent advances in reasoning with large language models (LLMs) have shown the effectiveness of Monte Carlo Tree Search (MCTS) for generating high quality intermediate trajectories, particularly in math and symbolic domains. Inspired by…

Artificial Intelligence · Computer Science 2025-12-23 Bingning Huang , Tu Nguyen , Matthieu Zimmer

Consistency learning using input image, feature, or network perturbations has shown remarkable results in semi-supervised semantic segmentation, but this approach can be seriously affected by inaccurate predictions of unlabelled training…

Computer Vision and Pattern Recognition · Computer Science 2022-03-29 Yuyuan Liu , Yu Tian , Yuanhong Chen , Fengbei Liu , Vasileios Belagiannis , Gustavo Carneiro

Convolutional neural networks for semantic segmentation suffer from low performance at object boundaries. In medical imaging, accurate representation of tissue surfaces and volumes is important for tracking of disease biomarkers such as…

Image and Video Processing · Electrical Eng. & Systems 2019-08-13 Francesco Caliva , Claudia Iriondo , Alejandro Morales Martinez , Sharmila Majumdar , Valentina Pedoia