| Full text | |
| Author(s): |
Total Authors: 4
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| Affiliation: | [1] Univ Sao Paulo, Inst Math & Comp Sci, BR-13566590 Sao Carlos, SP - Brazil
[2] Univ Fed Bahia, Dept Comp Sci, BR-40170110 Salvador, BA - Brazil
[3] Univ Fed Mato Grosso do Sul, FACOM, BR-79070900 Campo Grande, MS - Brazil
Total Affiliations: 3
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| Document type: | Journal article |
| Source: | Chaos; v. 28, n. 8 AUG 2018. |
| Web of Science Citations: | 0 |
| Abstract | |
This paper presents our efforts to detect Concept Drifts (changes in data generation processes), using the Cross-Recurrence Quantification Analysis, on time series produced by social network systems. Experiments were performed on the TSViz project (http://www.tsviz.com.br), which collects online tweets associated with predefined hashtags and processes them to generate different time series: one to measure the amount of information contained in textual short messages and another to quantify the positiveness and negativeness of users' sentiments, etc. In that context, this work proposed and evaluated a Concept Drift approach to point out when generating processes change along time, indicating the detection of relevant textual changes in terms of the amount of information and sentiments. As a main contribution, results show that our approach indicates when the most important social events happen, which were confirmed by official news. Published by AIP Publishing. (AU) | |
| FAPESP's process: | 17/16548-6 - Providing theoretical guarantees to the detection of concept drift in data streams |
| Grantee: | Rodrigo Fernandes de Mello |
| Support Opportunities: | Scholarships abroad - Research |
| FAPESP's process: | 13/07375-0 - CeMEAI - Center for Mathematical Sciences Applied to Industry |
| Grantee: | Francisco Louzada Neto |
| Support Opportunities: | Research Grants - Research, Innovation and Dissemination Centers - RIDC |