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We study the problem of user segmentation: given a set of users and one or more predefined groups or segments, assign users to their corresponding segments. As an example, for a segment indicating particular interest in a certain area of…

机器学习 · 计算机科学 2022-04-18 Keqian Li , Yifan Hu

Clustering is a central primitive in unsupervised learning, yet practice is dominated by heuristics whose outputs can be unstable and highly sensitive to representations, hyperparameters, and initialisation. Existing theoretical results are…

计算复杂性 · 计算机科学 2026-03-03 Angshul Majumdar

To alleviate the heavy annotation burden for training a reliable crowd counting model and thus make the model more practicable and accurate by being able to benefit from more data, this paper presents a new semi-supervised method based on…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Yifei Qian , Xiaopeng Hong , Zhongliang Guo , Ognjen Arandjelović , Carl R. Donovan

Semi-supervised learning has gained considerable popularity in medical image segmentation tasks due to its capability to reduce reliance on expert-examined annotations. Several mean-teacher (MT) based semi-supervised methods utilize…

计算机视觉与模式识别 · 计算机科学 2025-08-13 Kaiwen Huang , Tao Zhou , Huazhu Fu , Yizhe Zhang , Yi Zhou , Xiao-Jun Wu

Conformal prediction (CP) provides finite-sample, distribution-free marginal coverage, but standard conformal regression intervals can be inefficient under heteroscedasticity and skewness. In particular, popular constructions such as…

机器学习 · 统计学 2026-03-03 Xiaoyi Su , Zhixin Zhou , Rui Luo

Reliably assessing model confidence in deep learning and predicting errors likely to be made are key elements in providing safety for model deployment, in particular for applications with dire consequences. In this paper, it is first shown…

机器学习 · 计算机科学 2020-10-21 Theodoros Tsiligkaridis

Reliable uncertainty quantification is of critical importance in time series forecasting, yet traditional methods often rely on restrictive distributional assumptions. Conformal prediction (CP) has emerged as a promising distribution-free…

机器学习 · 计算机科学 2026-02-02 Andro Sabashvili

Estimating crowd count in densely crowded scenes is an extremely challenging task due to non-uniform scale variations. In this paper, we propose a novel end-to-end cascaded network of CNNs to jointly learn crowd count classification and…

计算机视觉与模式识别 · 计算机科学 2017-08-17 Vishwanath A. Sindagi , Vishal M. Patel

Estimating the entropy of a discrete random variable is a fundamental problem in information theory and related fields. This problem has many applications in various domains, including machine learning, statistics and data compression. Over…

信息论 · 计算机科学 2020-12-22 Yuval Shalev , Amichai Painsky , Irad Ben-Gal

Cognitive diagnosis models have been widely used in different areas, especially intelligent education, to measure users' proficiency levels on knowledge concepts, based on which users can get personalized instructions. As the measurement is…

计算机与社会 · 计算机科学 2024-03-25 Fei Wang , Qi Liu , Enhong Chen , Chuanren Liu , Zhenya Huang , Jinze Wu , Shijin Wang

This paper presents a novel meta algorithm, Partition-Merge (PM), which takes existing centralized algorithms for graph computation and makes them distributed and faster. In a nutshell, PM divides the graph into small subgraphs using our…

数据结构与算法 · 计算机科学 2013-09-25 Vincent Blondel , Kyomin Jung , Pushmeet Kohli , Devavrat Shah

In this paper, we propose a novel mutual consistency network (MC-Net+) to effectively exploit the unlabeled data for semi-supervised medical image segmentation. The MC-Net+ model is motivated by the observation that deep models trained with…

计算机视觉与模式识别 · 计算机科学 2022-07-05 Yicheng Wu , Zongyuan Ge , Donghao Zhang , Minfeng Xu , Lei Zhang , Yong Xia , Jianfei Cai

We present a simple comparative framework for testing and developing uncertainty modeling in uncertain marching cubes implementations. The selection of a model to represent the probability distribution of uncertain values directly…

人机交互 · 计算机科学 2024-09-16 Robert Sisneros , Tushar M. Athawale , David Pugmire , Kenneth Moreland

Effective decision making requires understanding the uncertainty inherent in a prediction. In regression, this uncertainty can be estimated by a variety of methods; however, many of these methods are laborious to tune, generate…

机器学习 · 统计学 2021-12-02 Tianhui Zhou , Yitong Li , Yuan Wu , David Carlson

The fusion of raw sensor data to create a Bird's Eye View (BEV) representation is critical for autonomous vehicle planning and control. Despite the growing interest in using deep learning models for BEV semantic segmentation, anticipating…

机器学习 · 计算机科学 2025-03-04 Linlin Yu , Bowen Yang , Tianhao Wang , Kangshuo Li , Feng Chen

Conventional communication systems are mainly designed to reduce error rates and increase transmission rates, and therefore usually provide uniform protection to all transmitted messages. However, in intent-oriented applications, different…

信息论 · 计算机科学 2026-05-25 Qiming Lu , Shan Lu , Takaya Yamazato

We present a novel autoencoder-based approach for designing codes that provide unequal error protection (UEP) capabilities. The proposed design is based on a generalization of an autoencoder loss function that accommodates both message-wise…

The Wasserstein distance has emerged as a key metric to quantify distances between probability distributions, with applications in various fields, including machine learning, control theory, decision theory, and biological systems.…

机器学习 · 计算机科学 2026-02-10 Eduardo Figueiredo , Steven Adams , Luca Laurenti

In this PhD thesis, we propose a novel framework for uncertainty quantification in machine learning, which is based on proper scores. Uncertainty quantification is an important cornerstone for trustworthy and reliable machine learning…

机器学习 · 计算机科学 2025-08-26 Sebastian G. Gruber

Methods for split conformal prediction leverage calibration samples to transform any prediction rule into a set-prediction rule that complies with a target coverage probability. Existing methods provide remarkably strong performance…

机器学习 · 统计学 2025-10-15 Santiago Mazuelas