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Details

  • Name

    Paula Raissa Silva
  • Cluster

    Computer Science
  • Role

    Research Assistant
  • Since

    13th September 2017
Publications

2018

An Approach to Extract Proper Implications Set from High-dimension Formal Contexts using Binary Decision Diagram

Authors
Santos, P; Neves, J; Silva, P; Dias, SM; Zárate, L; Song, M;

Publication
Proceedings of the 20th International Conference on Enterprise Information Systems

Abstract

2018

ImplicPBDD: A New Approach to Extract Proper Implications Set from High-Dimension Formal Contexts Using a Binary Decision Diagram †

Authors
Santos, P; Ruas, P; Neves, J; Silva, P; Dias, S; Zárate, L; Song, M;

Publication
Information

Abstract
Formal concept analysis (FCA) is largely applied in different areas. However, in some FCA applications the volume of information that needs to be processed can become unfeasible. Thus, the demand for new approaches and algorithms that enable processing large amounts of information is increasing substantially. This article presents a new algorithm for extracting proper implications from high-dimensional contexts. The proposed algorithm, called ImplicPBDD, was based on the PropIm algorithm, and uses a data structure called binary decision diagram (BDD) to simplify the representation of the formal context and enhance the extraction of proper implications. In order to analyze the performance of the ImplicPBDD algorithm, we performed tests using synthetic contexts varying the number of objects, attributes and context density. The experiments show that ImplicPBDD has a better performance—up to 80% faster—than its original algorithm, regardless of the number of attributes, objects and densities.

2018

Minimal Implications Base for Social Network Analyzes

Authors
Raissa, P; Dias, S; Song, M; Zárate, L;

Publication
International Journal of Web Information Systems

Abstract

2018

Professional Competence Identification Through Formal Concept Analysis

Authors
Silva, PR; Dias, SM; Brandão, WC; Song, MA; Zárate, LE;

Publication
Enterprise Information Systems - Lecture Notes in Business Information Processing

Abstract

2017

Formal Concept Analysis Applied to Professional Social Networks Analysis

Authors
Silva, PRC; Dias, SM; Brandão, WC; Song, MA; Zárate, LE;

Publication
Proceedings of the 19th International Conference on Enterprise Information Systems

Abstract