Banca de DEFESA: CINTIA DA COSTA SOUZA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : CINTIA DA COSTA SOUZA
DATE: 10/12/2021
TIME: 14:00
LOCAL: https://meet.google.com/tjf-uojc-fpi
TITLE:

DOSN-PROV: Model and Services for Data Provenance in Decentralized Social Networks.

KEY WORDS:

Decentralized Social Networks, Provenance, Ontology, Provenance Services, Capture of Provenance, Provenance Tracking

PAGES: 91
BIG AREA: Ciências Exatas e da Terra
AREA: Ciência da Computação
SUBÁREA: Metodologia e Técnicas da Computação
SUMMARY:

The information on social networks cannot always verify the origin, the paths described, and the registered modifications. Issues such as these generate uncertainty and distrust in processes and interactions in OSNs. With the emergence of DOSNs and the increase in the number of active users in these networks, it becomes essential to develop effective solutions regarding the provenance of decentralized data. The provenance is a factor of considerable importance because it is possible to evaluate the information's authenticity, reliability, and relevance through its results. Tracing and capture of provenance are critical tasks for DOSNs since they produce answers about the steps go through by the information. The large volume of data, the speed of generation and sharing of information, and the decentralized storage strategy make the provenance of DOSNs a non-trivial task. Thus, this work proposes the PROV-DOSN provenance ontological model, a specific model for the DOSNs domain, based on the PROV-O specification from W3C. In addition, this work also proposes services based on the DOSN-PROV to support the capture and tracking of provenance in DOSNs. We evaluated DOSN-PROV in two steps to demonstrate compliance with the proposed domain. Finally, the services underwent a performance evaluation, and their results indicated acceptable response times for the capture and tracking tasks.

BANKING MEMBERS:
Presidente - 1814369 - CASSIO VINICIUS SERAFIM PRAZERES
Interno - 2352062 - MARLO VIEIRA DOS SANTOS E SOUZA
Externa à Instituição - RITA CRISTINA GALARRAGA BERARDI - UTFPR