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A probabilistic expert system emulates the decision-making ability of a human expert through a directional graphical model. The first step in building such systems is to understand data generation mechanism. To this end, one may try to…

统计方法学 · 统计学 2021-09-29 Vahid Partovi Nia , Xinlin Li , Masoud Asgharian , Shoubo Hu , Zhitang Chen , Yanhui Geng

We propose a unified mixture sampler (UMS) that provides a universal estimation framework for nonlinear state-space models with "exp-exp" likelihood kernels. Unlike existing methods that require deriving new mixture approximations for each…

统计方法学 · 统计学 2026-04-07 Daichi Hiraki , Yasuhiro Omori

Existing model evaluation tools mainly focus on evaluating classification models, leaving a gap in evaluating more complex models, such as object detection. In this paper, we develop an open-source visual analysis tool, Uni-Evaluator, to…

计算机视觉与模式识别 · 计算机科学 2023-08-11 Changjian Chen , Yukai Guo , Fengyuan Tian , Shilong Liu , Weikai Yang , Zhaowei Wang , Jing Wu , Hang Su , Hanspeter Pfister , Shixia Liu

Uniform sampling is a highly efficient method for data summarization. However, its effectiveness in producing coresets for clustering problems is not yet well understood, primarily because it generally does not yield a strong coreset, which…

数据结构与算法 · 计算机科学 2026-02-19 Amir Carmel , Robert Krauthgamer

Accurate estimation of uncertainty in deep learning is critical for deploying models in high-stakes domains such as medical diagnosis and autonomous decision-making, where overconfident predictions can lead to harmful outcomes. In practice,…

机器学习 · 计算机科学 2026-03-12 Xinran Xu , Xiuyi Fan

In the field of 3D object detection for autonomous driving, the sensor portfolio including multi-modality and single-modality is diverse and complex. Since the multi-modal methods have system complexity while the accuracy of single-modal…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Shengchao Zhou , Weizhou Liu , Chen Hu , Shuchang Zhou , Chao Ma

The advent of high dimensional single cell data in the biomedical sciences has necessitated the development of dimensionality-reduction tools. t-SNE and UMAP are the two most frequently used approaches, allowing clear visualisation of…

Clustering is an essential data mining tool that aims to discover inherent cluster structure in data. As such, the study of clusterability, which evaluates whether data possesses such structure, is an integral part of cluster analysis. Yet,…

机器学习 · 计算机科学 2016-02-24 Margareta Ackerman , Andreas Adolfsson , Naomi Brownstein

Assessing goodness of fit to a given distribution plays an important role in computational statistics. The Probability integral transformation (PIT) can be used to convert the question of whether a given sample originates from a reference…

统计方法学 · 统计学 2022-12-22 Teemu Säilynoja , Paul-Christian Bürkner , Aki Vehtari

The problem of multimodal clustering arises whenever the data are gathered with several physically different sensors. Observations from different modalities are not necessarily aligned in the sense there there is no obvious way to associate…

机器学习 · 统计学 2020-12-10 Vasil Khalidov , Florence Forbes , Radu Horaud

A new methodology is proposed for generating realizations of a random vector with values in a finite-dimensional Euclidean space that are statistically consistent with a data set of observations of this vector. The probability distribution…

概率论 · 数学 2016-08-24 Christian Soize , Roger Ghanem

Unified Multimodal Models (UMMs) offer powerful cross-modality capabilities but introduce new safety risks not observed in single-task models. Despite their emergence, existing safety benchmarks remain fragmented across tasks and…

计算机视觉与模式识别 · 计算机科学 2026-03-19 Segyu Lee , Boryeong Cho , Hojung Jung , Seokhyun An , Juhyeong Kim , Jaehyun Kwak , Yongjin Yang , Sangwon Jang , Youngrok Park , Wonjun Chang , Se-Young Yun

Deep learning models frequently encounter feature uncertainty in diverse learning scenarios, significantly impacting their performance and reliability. This challenge is particularly complex in multi-modal scenarios, where models must…

机器学习 · 计算机科学 2025-06-05 Jiahao Qin , Bei Peng , Feng Liu , Guangliang Cheng , Lu Zong

Unsupervised Anomaly Detection (UAD) plays a crucial role in identifying abnormal patterns within data without labeled examples, holding significant practical implications across various domains. Although the individual contributions of…

机器学习 · 计算机科学 2024-06-04 Zeyu Fang , Ming Gu , Sheng Zhou , Jiawei Chen , Qiaoyu Tan , Haishuai Wang , Jiajun Bu

Statisticians increasingly face the problem to reconsider the adaptability of classical inference techniques. In particular, divers types of high-dimensional data structures are observed in various research areas; disclosing the boundaries…

统计理论 · 数学 2017-06-09 Paavo Sattler , Markus Pauly

Currently, enhancing Unified Multimodal Models (UMMs) with image understanding, generation, and editing capabilities mainly relies on mixed multi-task training. Due to inherent task conflicts, such strategy requires complex multi-stage…

计算机视觉与模式识别 · 计算机科学 2026-05-25 Dian Zheng , Manyuan Zhang , Hongyu Li , Hongbo Liu , Kai Zou , Kaituo Feng , Hongsheng Li

Methods of performing anomaly detection on high-dimensional data sets are needed, since algorithms which are trained on data are only expected to perform well on data that is similar to the training data. There are theoretical results on…

机器学习 · 计算机科学 2020-11-13 Forrest Laine , Claire Tomlin

We introduce Unified Multimodal Uncertain Inference (UMUI), a multimodal inference task spanning text, audio, and video, where models must produce calibrated probability estimates of hypotheses conditioned on a premise in any modality or…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Dengjia Zhang , Alexander Martin , William Jurayj , Kenton Murray , Benjamin Van Durme , Reno Kriz

The ability to identify useful features or representations of the input data based on training data that achieves low prediction error on test data across multiple prediction tasks is considered the key to multitask learning success. In…

机器学习 · 统计学 2025-02-12 Soumya Mukherjee , Bharath K. Sriperumbudur

Medical data poses a daunting challenge for AI algorithms: it exists in many different modalities, experiences frequent distribution shifts, and suffers from a scarcity of examples and labels. Recent advances, including transformers and…