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In this paper, we present an unsupervised probabilistic model and associated estimation algorithm for multi-object tracking (MOT) based on a dynamical variational autoencoder (DVAE), called DVAE-UMOT. The DVAE is a latent-variable deep…

机器学习 · 计算机科学 2022-02-22 Xiaoyu Lin , Laurent Girin , Xavier Alameda-Pineda

We consider an input-to-response (ItR) system characterized by (1) parameterized input with a known probability distribution and (2) stochastic ItR function with heteroscedastic randomness. Our purpose is to efficiently quantify the extreme…

统计方法学 · 统计学 2022-05-18 Xianliang Gong , Yulin Pan

As the number of Internet of Things (IoT) devices and systems have surged, IoT data analytics techniques have been developed to detect malicious cyber-attacks and secure IoT systems; however, concept drift issues often occur in IoT data…

机器学习 · 计算机科学 2022-02-07 Li Yang , Dimitrios Michael Manias , Abdallah Shami

Since its formulation by Hamaker et al., the radio interferometer measurement equation (RIME) has provided a rigorous mathematical basis for the development of novel calibration methods and techniques, including various approaches to the…

天体物理仪器与方法 · 物理学 2011-02-07 Oleg M. Smirnov

We present a maximum entropy inverse reinforcement learning (IRL) approach for improving the sample quality of diffusion generative models, especially when the number of generation time steps is small. Similar to how IRL trains a policy…

机器学习 · 计算机科学 2024-11-01 Sangwoong Yoon , Himchan Hwang , Dohyun Kwon , Yung-Kyun Noh , Frank C. Park

This paper presents a novel end-to-end deep learning framework for real-time inertial attitude estimation using 6DoF IMU measurements. Inertial Measurement Units are widely used in various applications, including engineering and medical…

机器人学 · 计算机科学 2023-05-23 Arman Asgharpoor Golroudbari , Mohammad Hossein Sabour

Research on the test structure of the Force Concept Inventory (FCI) has largely been performed with exploratory methods such as factor analysis and cluster analysis. Multi-Dimensional Item Response Theory (MIRT) provides an alternative to…

物理教育 · 物理学 2018-06-20 John Stewart , Cabot Zabriskie , Seth DeVore , Gay Stewart

In high-dimensional prediction settings, it remains challenging to reliably estimate the test performance. To address this challenge, a novel performance estimation framework is presented. This framework, called Learn2Evaluate, is based on…

统计方法学 · 统计学 2022-06-09 Jeroen M. Goedhart , Thomas Klausch , Mark A. van de Wiel

Feature caching approaches accelerate diffusion transformers (DiTs) by storing the output features of computationally expensive modules at certain timesteps, and exploiting them for subsequent steps to reduce redundant computations. Recent…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Byunggwan Son , Jeimin Jeon , Jeongwoo Choi , Bumsub Ham

Diffusion-based models have recently shown strong performance in trajectory planning, as they are capable of capturing diverse, multimodal distributions of complex behaviors. A key limitation of these models is their slow inference speed,…

机器人学 · 计算机科学 2026-03-24 Grayson Lee , Minh Bui , Shuzi Zhou , Yankai Li , Mo Chen , Ke Li

Autonomous driving requires reasoning about interactions with surrounding traffic. A prevailing approach is large-scale imitation learning on expert driving datasets, aimed at generalizing across diverse real-world scenarios. For online…

High-quality datasets are essential for training robust perception systems in autonomous driving. However, real-world data collection is often biased toward common scenes and objects, leaving novel cases underrepresented. This imbalance…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Philipp Reis , Joshua Ransiek , David Petri , Jacob Langner , Eric Sax

This work presents a new approach, called MISFIT, for fitting generalized functional linear regression models with sparsely and irregularly sampled data. Current methods do not allow for consistent estimation unless one assumes that the…

统计方法学 · 统计学 2022-05-10 Justin Petrovich , Matthew Reimherr , Carrie Daymont

Differential item functioning (DIF) detection is an important yet understudied problem in computerized adaptive testing (CAT). In this article, we proposed a two-level logistic model to improve DIF detection in CAT by explicitly accounting…

应用统计 · 统计学 2026-05-05 Dandan Chen Kaptur , Justin Kern , Chingwei David Shin , Jinming Zhang

Timing systems based on Analog-to-Digital Converters are widely used in the design of previous high energy physics detectors. In this paper, we propose a new method based on deep learning to extract the time information from a finite set of…

数据分析、统计与概率 · 物理学 2019-04-02 Pengcheng Ai , Dong Wang , Guangming Huang , Ni Fang , Deli Xu , Fan Zhang

A seismic fragility curve expresses the probability of failure of a structure conditional to an intensity measure (IM) derived from seismic signals. When only limited data is available, the practitioner often refers to the probit-lognormal…

应用统计 · 统计学 2025-12-17 Antoine Van Biesbroeck , Clément Gauchy , Cyril Feau , Josselin Garnier

Foundation models enable prompt-based classifiers for zero-shot and few-shot learning. Nonetheless, the conventional method of employing fixed prompts suffers from distributional shifts that negatively impact generalizability to unseen…

机器学习 · 计算机科学 2024-10-29 Yingjun Du , Gaowen Liu , Yuzhang Shang , Yuguang Yao , Ramana Kompella , Cees G. M. Snoek

It is widely believed that a joint factor analysis of item responses and response time (RT) may yield more precise ability scores that are conventionally predicted from responses only. For this purpose, a simple-structure factor model is…

应用统计 · 统计学 2025-01-01 Yang Liu , Weimeng Wang

Text-to-image diffusion models rely on text embeddings from a pre-trained text encoder, but these embeddings remain fixed across all diffusion timesteps, limiting their adaptability to the generative process. We propose Diffusion Adaptive…

机器学习 · 计算机科学 2025-10-29 Byeonghu Na , Minsang Park , Gyuwon Sim , Donghyeok Shin , HeeSun Bae , Mina Kang , Se Jung Kwon , Wanmo Kang , Il-Chul Moon

Deep neural networks (DNNs) have become ubiquitous thanks to their remarkable ability to model complex patterns across various domains such as computer vision, speech recognition, robotics, etc. While large DNN models are often more…

机器学习 · 计算机科学 2025-11-18 Omkar Shende , Gayathri Ananthanarayanan , Marcello Traiola