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For both triangulations of point sets and simple polygons, it is known that determining the flip distance between two triangulations is an NP-hard problem. To gain more insight into flips of triangulations and to characterize "where edges…

Computational Geometry · Computer Science 2018-08-10 Alexander Pilz

Facial action units (AUs) recognition is essential for emotion analysis and has been widely applied in mental state analysis. Existing work on AU recognition usually requires big face dataset with AU labels; however, manual AU annotation…

Computer Vision and Pattern Recognition · Computer Science 2020-09-24 Xuesong Niu , Hu Han , Shiguang Shan , Xilin Chen

High dimensional data often contain multiple facets, and several clustering patterns can co-exist under different variable subspaces, also known as the views. While multi-view clustering algorithms were proposed, the uncertainty…

Machine Learning · Statistics 2019-10-09 Leo L Duan

Triangulation of a three-dimensional point from at least two noisy 2-D images can be formulated as a quadratically constrained quadratic program. We propose an algorithm to extract candidate solutions to this problem from its semidefinite…

Optimization and Control · Mathematics 2012-08-09 Chris Aholt , Sameer Agarwal , Rekha Thomas

Zero-shot learning transfers knowledge from seen classes to novel unseen classes to reduce human labor of labelling data for building new classifiers. Much effort on zero-shot learning however has focused on the standard multi-class…

Computer Vision and Pattern Recognition · Computer Science 2018-08-08 Meng Ye , Yuhong Guo

Different from Visual Question Answering task that requires to answer only one question about an image, Visual Dialogue involves multiple questions which cover a broad range of visual content that could be related to any objects,…

Computer Vision and Pattern Recognition · Computer Science 2019-11-19 Xiaoze Jiang , Jing Yu , Zengchang Qin , Yingying Zhuang , Xingxing Zhang , Yue Hu , Qi Wu

Binary image based classification and retrieval of documents of an intellectual nature is a very challenging problem. Variations in the binary image generation mechanisms which are subject to the document artisan designer including drawing…

Computer Vision and Pattern Recognition · Computer Science 2020-04-28 Juan Castorena , Manish Bhattarai , Diane Oyen

As we all know, multi-view data is more expressive than single-view data and multi-label annotation enjoys richer supervision information than single-label, which makes multi-view multi-label learning widely applicable for various pattern…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Chengliang Liu , Jie Wen , Xiaoling Luo , Yong Xu

In many scientific settings data can be naturally partitioned into variable groupings called views. Common examples include environmental (1st view) and genetic information (2nd view) in ecological applications, chemical (1st view) and…

Applications · Statistics 2009-06-08 Mark Culp , George Michailidis , Kjell Johnson

As a cross-topic of multi-view learning and multi-label classification, multi-view multi-label classification has gradually gained traction in recent years. The application of multi-view contrastive learning has further facilitated this…

Computer Vision and Pattern Recognition · Computer Science 2025-07-03 Chengliang Liu , Jie Wen , Yong Xu , Bob Zhang , Liqiang Nie , Min Zhang

In this paper, we consider the problem of determining in polynomial time whether a given planar point set $P$ of $n$ points admits 4-connected triangulation. We propose a necessary and sufficient condition for recognizing $P$, and present…

Computational Geometry · Computer Science 2013-10-08 Ajit Arvind Diwan , Subir Kumar Ghosh , Bodhayan Roy

We present a novel multiview canonical correlation analysis model based on a variational approach. This is the first nonlinear model that takes into account the available graph-based geometric constraints while being scalable for processing…

Machine Learning · Computer Science 2021-10-05 Yacouba Kaloga , Pierre Borgnat , Sundeep Prabhakar Chepuri , Patrice Abry , Amaury Habrard

Multi-label image classification is a fundamental but challenging task in computer vision. Over the past few decades, solutions exploring relationships between semantic labels have made great progress. However, the underlying…

Computer Vision and Pattern Recognition · Computer Science 2022-02-22 Jialu Zhang , Qian Zhang , Jianfeng Ren , Yitian Zhao , Jiang Liu

We present angle-uniform parallel coordinates, a data-independent technique that deforms the image plane of parallel coordinates so that the angles of linear relationships between two variables are linearly mapped along the horizontal axis…

Graphics · Computer Science 2023-04-12 Kaiyi Zhang , Liang Zhou , Lu Chen , Shitong He , Daniel Weiskopf , Yunhai Wang

Predicting all applicable labels for a given image is known as multi-label classification. Compared to the standard multi-class case (where each image has only one label), it is considerably more challenging to annotate training data for…

Computer Vision and Pattern Recognition · Computer Science 2021-10-25 Elijah Cole , Oisin Mac Aodha , Titouan Lorieul , Pietro Perona , Dan Morris , Nebojsa Jojic

Few-shot learning is a fundamental and challenging problem since it requires recognizing novel categories from only a few examples. The objects for recognition have multiple variants and can locate anywhere in images. Directly comparing…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Congqi Cao , Yanning Zhang

In multi-label classification, an instance may be associated with a set of labels simultaneously. Recently, the research on multi-label classification has largely shifted its focus to the other end of the spectrum where the number of labels…

Machine Learning · Computer Science 2016-04-06 Li Li , Houfeng Wang

The problem visual place recognition is commonly used strategy for localization. Most successful appearance based methods typically rely on a large database of views endowed with local or global image descriptors and strive to retrieve the…

Computer Vision and Pattern Recognition · Computer Science 2016-09-02 Arsalan Mousavian , Jana Kosecka

Although multi-view multi-label learning has been extensively studied, research on the dual-missing scenario, where both views and labels are incomplete, remains largely unexplored. Existing methods mainly rely on contrastive learning or…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Xu Yan , Jun Yin , Shiliang Sun , Minghua Wan

Although unsupervised person re-identification (RE-ID) has drawn increasing research attentions due to its potential to address the scalability problem of supervised RE-ID models, it is very challenging to learn discriminative information…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Hong-Xing Yu , Wei-Shi Zheng , Ancong Wu , Xiaowei Guo , Shaogang Gong , Jian-Huang Lai
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