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The growth of scale and complexity of interactions between humans and robots highlights the need for new computational methods to automatically evaluate novel algorithms and applications. Exploring diverse scenarios of humans and robots…

Robotics · Computer Science 2021-06-22 Matthew Fontaine , Stefanos Nikolaidis

Crowd counting is to estimate the number of objects (e.g., people or vehicles) in an image of unconstrained congested scenes. Designing a general crowd counting algorithm applicable to a wide range of crowd images is challenging, mainly due…

Computer Vision and Pattern Recognition · Computer Science 2019-09-10 Haoyue Bai , Song Wen , S. -H. Gary Chan

Learning idiomatic expressions is seen as one of the most challenging stages in second language learning because of their unpredictable meaning. A similar situation holds for their identification within natural language processing…

Computation and Language · Computer Science 2022-01-21 Gülşen Eryiğit , Ali Şentaş , Johanna Monti

Video domain generalization aims to learn generalizable video classification models for unseen target domains by training in a source domain. A critical challenge of video domain generalization is to defend against the heavy reliance on…

Computer Vision and Pattern Recognition · Computer Science 2023-10-30 Kun-Yu Lin , Jia-Run Du , Yipeng Gao , Jiaming Zhou , Wei-Shi Zheng

The i.i.d. assumption is a useful idealization that underpins many successful approaches to supervised machine learning. However, its violation can lead to models that learn to exploit spurious correlations in the training data, rendering…

Machine Learning · Computer Science 2020-06-15 Daniel Pace , Alessandra Russo , Murray Shanahan

We propose to harness the potential of simulation for the semantic segmentation of real-world self-driving scenes in a domain generalization fashion. The segmentation network is trained without any data of target domains and tested on the…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Xiangyu Yue , Yang Zhang , Sicheng Zhao , Alberto Sangiovanni-Vincentelli , Kurt Keutzer , Boqing Gong

We present an integrated framework for simultaneous tracking, group detection and multi-level activity recognition in crowd videos. Instead of solving these problems independently and sequentially, we solve them together in a unified…

Computer Vision and Pattern Recognition · Computer Science 2017-10-31 Neha Bhargava , Subhasis Chaudhuri

Score-based modeling through stochastic differential equations (SDEs) has provided a new perspective on diffusion models, and demonstrated superior performance on continuous data. However, the gradient of the log-likelihood function, i.e.,…

Machine Learning · Computer Science 2023-03-07 Haoran Sun , Lijun Yu , Bo Dai , Dale Schuurmans , Hanjun Dai

Infrared small target detection (ISTD) is highly sensitive to sensor type, observation conditions, and the intrinsic properties of the target. These factors can introduce substantial variations in the distribution of acquired infrared image…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Yahao Lu , Yuehui Li , Xingyuan Guo , Shuai Yuan , Yukai Shi , Liang Lin

Multi-view crowd counting and localization fuse the input multi-views for estimating the crowd number or locations on the ground. Existing methods mainly focus on accurately predicting on the crowd shown in the input views, which neglects…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Qi Zhang , Bin Li , Antoni B. Chan , Hui Huang

A major challenge in the safety assessment of automated vehicles is to ensure that risk for all traffic participants is as low as possible. A concept that is becoming increasingly popular for testing in automated driving is scenario-based…

Robotics · Computer Science 2022-11-28 Maximilian Zipfl , Barbara Schütt , J. Marius Zöllner , Eric Sax

We propose a framework for online Change Point Detection (CPD) from multi-entity, multivariate time series data, motivated by applications in crowd monitoring where traditional sensing methods (e.g., video surveillance) may be infeasible.…

Signal Processing · Electrical Eng. & Systems 2025-09-24 Bahar Kor , Bipin Gaikwad , Abani Patra , Eric L. Miller

The growing need to analyze large collections of documents has led to great developments in topic modeling. Since documents are frequently associated with other related variables, such as labels or ratings, much interest has been placed on…

Machine Learning · Statistics 2018-08-20 Filipe Rodrigues , Mariana Lourenço , Bernardete Ribeiro , Francisco Pereira

Domain generalization involves learning a classifier from a heterogeneous collection of training sources such that it generalizes to data drawn from similar unknown target domains, with applications in large-scale learning and personalized…

Machine Learning · Computer Science 2021-12-24 Xavier Thomas , Dhruv Mahajan , Alex Pentland , Abhimanyu Dubey

Visual question answering (VQA) systems are emerging from a desire to empower users to ask any natural language question about visual content and receive a valid answer in response. However, close examination of the VQA problem reveals an…

Artificial Intelligence · Computer Science 2016-08-30 Danna Gurari , Kristen Grauman

Diffusion models have become a popular choice for representing actor policies in behavior cloning and offline reinforcement learning. This is due to their natural ability to optimize an expressive class of distributions over a continuous…

Machine Learning · Computer Science 2025-02-17 Michael Psenka , Alejandro Escontrela , Pieter Abbeel , Yi Ma

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…

Computer Vision and Pattern Recognition · Computer Science 2017-08-17 Vishwanath A. Sindagi , Vishal M. Patel

State-of-the-art methods for counting people in crowded scenes rely on deep networks to estimate crowd density in the image plane. While useful for this purpose, this image-plane density has no immediate physical meaning because it is…

Computer Vision and Pattern Recognition · Computer Science 2019-07-19 Weizhe Liu , Krzysztof Lis , Mathieu Salzmann , Pascal Fua

Modeling mixed-traffic motion and interactions is crucial to assess safety, efficiency, and feasibility of future urban areas. The lack of traffic regulations, diverse transport modes, and the dynamic nature of mixed-traffic zones like…

Artificial Intelligence · Computer Science 2021-01-19 Fatema T. Johora , Dongfang Yang , Jörg P. Müller , Ümit Özgüner

Crowd counting is one of the core tasks in various surveillance applications. A practical system involves estimating accurate head counts in dynamic scenarios under different lightning, camera perspective and occlusion states. Previous…

Computer Vision and Pattern Recognition · Computer Science 2018-06-27 Li Wang , Weiyuan Shao , Yao Lu , Hao Ye , Jian Pu , Yingbin Zheng