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Jiajing Chai

dblp:304/1564 · DBLP profile ↗
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1ranked-venue papers
0as first author
1since 2021 · last 2021
—ORCID · none

Domains — the database's venue-derived domains; a paper can count in several

Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 since 2021

Expertise — from the expertise taxonomy: the topics of the expert's papers under the CCF categories. A weight counts papers with recency: 1 for a paper about the topic, 0.3 when the topic is its context, halved every five years.

Artificial intelligence
1 paper
Image recognition and object detection · 44% Representation and self-supervised learning · 44% Deep learning architectures and training · 13%

Topics — the 3 heaviest of 4, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Computer vision › Image recognition and object detection
image classification
0.512021
Deep Marginal Fisher Analysis based CNN for Image Representation and Classification · ACM Multimedia 2021
Machine learning › Representation and self-supervised learning › representation learning › visual representation learning
image representation learning
0.512021
Deep Marginal Fisher Analysis based CNN for Image Representation and Classification · ACM Multimedia 2021
Machine learning › Deep learning architectures and training
convolutional neural network
0.112021
Deep Marginal Fisher Analysis based CNN for Image Representation and Classification · ACM Multimedia 2021

Methods — techniques the papers use, named apart from their topics

marginal fisher analysis · 0.5graph embedding · 0.5binary stochastic hashing · 0.5
YearPublicationVenuePosition
2021 Deep Marginal Fisher Analysis based CNN for Image Representation and Classification
abstract
Deep Convolutional Neural Networks (CNNs) have achieved great success in image classification. While conventional CNNs optimized with iterative gradient descent algorithms with large data have been widely used and investigated, there is also research focusing on learning CNNs with non-iterative optimization methods such as the principle component analysis network (PCANet). It is very simple and efficient but achieves competitive performance for some image classification tasks especially on tasks with only a small amount of data available. This paper further extends this line of research and proposes a deep Marginal Fisher Analysis (MFA) based CNN, termed as DMNet. It addresses the limitation of PCANet like CNNs when the samples do not follow Gaussian distribution, by using a local MFA for CNN filter optimization. It uses a graph embedding framework for convolution filter optimization by maximizing the inter-class discriminability among marginal points while minimizing intra-class distance. Cascaded MFA convolution layers can be used to construct a deep network. Moreover, a binary stochastic hashing is developed by randomly selecting features with a probability based on the importance of feature maps for binary hashing. Experimental results demonstrate that the proposed method achieves state-of-the-art result in non-iterative optimized CNN methods, and ablation studies have been conducted to verify the effectiveness of the proposed modules in our DMNet.
Jiajing Chai, Yanbo Gao, Shuai Li 0005
ACM Multimedia2