Results 21 to 30 of about 822,037 (305)

Empirical lecturers’ and students’ satisfaction assessment in e-learning systems based on the usage metrics

open access: yesREID (Research and Evaluation in Education), 2021
Nowadays, in the pandemic of COVID-19, e-learning systems have been widely used to facilitate teaching and learning processes between lecturers and students.
Sulis Sandiwarno
doaj   +1 more source

Deep Transfer Metric Learning [PDF]

open access: yesIEEE Transactions on Image Processing, 2016
Conventional metric learning methods usually assume that the training and test samples are captured in similar scenarios so that their distributions are assumed to be the same. This assumption does not hold in many real visual recognition applications, especially when samples are captured across different data sets. In this paper, we propose a new deep
Junlin Hu   +3 more
openaire   +2 more sources

Metric Learning for Individual Fairness [PDF]

open access: yes, 2020
There has been much discussion concerning how "fairness" should be measured or enforced in classification. Individual Fairness [Dwork et al., 2012], which requires that similar individuals be treated similarly, is a highly appealing definition as it ...
Ilvento, Christina
core   +2 more sources

Learning Neighborhoods for Metric Learning [PDF]

open access: yes, 2012
Metric learning methods have been shown to perform well on different learning tasks. Many of them rely on target neighborhood relationships that are computed in the original feature space and remain fixed throughout learning. As a result, the learned metric reflects the original neighborhood relations.
Wang Jun   +2 more
openaire   +4 more sources

Query-Augmented Active Metric Learning [PDF]

open access: yesJournal of the American Statistical Association, 2022
In this paper we propose an active metric learning method for clustering with pairwise constraints. The proposed method actively queries the label of informative instance pairs, while estimating underlying metrics by incorporating unlabeled instance pairs, which leads to a more accurate and efficient clustering process.
Deng, Yujia   +3 more
openaire   +2 more sources

Object Tracking With Structured Metric Learning

open access: yesIEEE Access, 2019
In this paper, we propose a novel tracking method based on structured metric learning, which takes the advantages of both structured learning and distance metric learning.
Xiaolin Zhao   +4 more
doaj   +1 more source

A review on multi-task metric learning

open access: yesBig Data Analytics, 2018
Distance metric plays an important role in machine learning which is crucial to the performance of a range of algorithms. Metric learning, which refers to learning a proper distance metric for a particular task, has attracted much attention in machine ...
Peipei Yang, Kaizhu Huang, Amir Hussain
doaj   +1 more source

Unsupervised Event Graph Representation and Similarity Learning on Biomedical Literature

open access: yesSensors, 2021
The automatic extraction of biomedical events from the scientific literature has drawn keen interest in the last several years, recognizing complex and semantically rich graphical interactions otherwise buried in texts.
Giacomo Frisoni   +3 more
doaj   +1 more source

An Effective Gaze-Based Authentication Method with the Spatiotemporal Feature of Eye Movement

open access: yesSensors, 2022
Eye movement has become a new behavioral feature for biometric authentication. In the eye movement-based authentication methods that use temporal features and artificial design features, the required duration of eye movement recordings are too long to be
Jinghui Yin, Jiande Sun, Jing Li, Ke Liu
doaj   +1 more source

Deep metric learning to rank [PDF]

open access: yes, 2019
We propose a novel deep metric learning method by revisiting the learning to rank approach. Our method, named FastAP, optimizes the rank-based Average Precision measure, using an approximation derived from distance quantization.
Cakir, Fatih   +4 more
core   +1 more source

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