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Investigation of graph-based contextual measures for weakly-supervised learning

Grant number: 20/08854-2
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): September 01, 2020
Effective date (End): August 31, 2021
Field of knowledge:Physical Sciences and Mathematics - Computer Science - Computer Systems
Cooperation agreement: Microsoft Research
Principal researcher:Daniel Carlos Guimarães Pedronette
Grantee:Bionda Rozin
Home Institution: Instituto de Geociências e Ciências Exatas (IGCE). Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Rio Claro , SP, Brazil
Company:Universidade Estadual Paulista (UNESP). Campus de Rio Claro. Instituto de Geociências e Ciências Exatas (IGCE)
Associated research grant:17/25908-6 - Weakly supervised learning for compressed video analysis on retrieval and classification tasks for visual alert, AP.PITE


While traditional distance/similarity measures are mainly based on pairwise analysis, contextual measures also consider neighborhood similarity relationships. Recently, such measures have been successfully exploited in various unsupervised learning tasks, especially using graph-based approaches. In this scenario, this project considers the hypothesis that these measures can also be applied in weakly supervised learning tasks. The main idea consists in expanding small training sets through reliable similarity relationships identified in graphs. In this way, the main objective is to investigate if such approaches can achieve accuracy gains when applied on weakly supervised learning methods.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
ROZIN, BIONDA; PEREIRA-FERRERO, VANESSA HELENA; LOPES, LEONARDO TADEU; PEDRONETTE, DANIEL CARLOS GUIMARAES. A rank-based framework through manifold learning for improved clustering tasks. INFORMATION SCIENCES, v. 580, p. 202-220, NOV 2021. Web of Science Citations: 0.

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