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Daniel P. M. de Mello

dblp:202/2215 · DBLP profile ↗
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1ranked-venue papers
1as first author
1since 2021 · last 2022
—ORCID · none

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

Artificial intelligence and machine learning · 1 · 1 first-author · 1 since 2021Graphics, computer vision, multimedia, augmented reality and games · 1 · 1 first-author · 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.

Databases, data mining, and information retrieval
1 paper
Data mining · 100%
Artificial intelligence
1 paper
Generative modeling · 100%

Topics — the 5 heaviest of 6, each with the papers that count most for it

TopicWeightPapersLastEvidence papers
Machine learning › Generative modeling
generative adversarial network
0.612022
Top-Down Deep Clustering with Multi-Generator GANs · AAAI 2022
Machine learning › Generative modeling › generative adversarial network › GAN architecture
multi-generator GAN
0.612022
Top-Down Deep Clustering with Multi-Generator GANs · AAAI 2022
Data mining
clustering
0.612022
Top-Down Deep Clustering with Multi-Generator GANs · AAAI 2022
Data mining › clustering
deep clustering
0.612022
Top-Down Deep Clustering with Multi-Generator GANs · AAAI 2022
Data mining › clustering
hierarchical clustering
0.612022
Top-Down Deep Clustering with Multi-Generator GANs · AAAI 2022

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

representation learning · 1.1generative adversarial network · 1.1
YearPublicationVenuePosition
2022 Top-Down Deep Clustering with Multi-Generator GANs
abstract
Deep clustering (DC) leverages the representation power of deep architectures to learn embedding spaces that are optimal for cluster analysis. This approach filters out low-level information irrelevant for clustering and has proven remarkably successful for high dimensional data spaces. Some DC methods employ Generative Adversarial Networks (GANs), motivated by the powerful latent representations these models are able to learn implicitly. In this work, we propose HC-MGAN, a new technique based on GANs with multiple generators (MGANs), which have not been explored for clustering. Our method is inspired by the observation that each generator of a MGAN tends to generate data that correlates with a sub-region of the real data distribution. We use this clustered generation to train a classifier for inferring from which generator a given image came from, thus providing a semantically meaningful clustering for the real distribution. Additionally, we design our method so that it is performed in a top-down hierarchical clustering tree, thus proposing the first hierarchical DC method, to the best of our knowledge. We conduct several experiments to evaluate the proposed method against recent DC methods, obtaining competitive results. Last, we perform an exploratory analysis of the hierarchical clustering tree that highlights how accurately it organizes the data in a hierarchy of semantically coherent patterns.
Daniel P. M. de Mello, Renato Assunção, Fabricio Murai
AAAI1