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SEMI-SUPERVISED FEATURE EMBEDDING FOR DATA SANITIZATION IN REAL-WORLD EVENTS

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Author(s):
Lavi, Bahram ; Nascimento, Jose ; Rocha, Anderson ; IEEE
Total Authors: 4
Document type: Journal article
Source: 2021 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP 2021); v. N/A, p. 5-pg., 2021-01-01.
Abstract

With the rapid growth of data sharing through social media networks, determining relevant data items concerning a particular subject becomes paramount. We address the issue of establishing which images represent an event of interest through a semi-supervised learning technique. The method learns consistent and shared features related to an event (from a small set of examples) to propagate them to an unlabeled set. We investigate the behavior of five image feature representations considering low- and high-level features and their combinations. We evaluate the effectiveness of the feature embedding approach on five collected datasets from real-world events. (AU)

FAPESP's process: 17/12646-3 - Déjà vu: feature-space-time coherence from heterogeneous data for media integrity analytics and interpretation of events
Grantee:Anderson de Rezende Rocha
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 20/02241-9 - Pattern discovery and event highlight from heterogenous sources
Grantee:José Dorivaldo Nascimento Souza Júnior
Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
FAPESP's process: 18/05668-3 - Feature-space-time Coherence with Heterogeneous Data
Grantee:Bahram Lavi Sefidgari
Support Opportunities: Scholarships in Brazil - Post-Doctoral