How to extract knowledge of Qualitative Data from Big Textual Data

Volume 6, Issue 1, February 2021     |     PP. 18-53      |     PDF (431 K)    |     Pub. Date: November 16, 2021
DOI: 10.54647/computer52243    72 Downloads     6279 Views  

Author(s)

Jouis Christophe, Centre d’Analyse et de Mathématiques Sociales - CAMS
Orús-Lacort Mercedes, Online teachers at College Mathematics

Abstract
In this article, we will analyze how to obtain pertinent Information in the form of Qualitative Data graphically represented from unstructured Big Textual data. Unstructured data refers to information that either does not have a pre-defined data model or is not organized in a pre-defined manner (80-90% of all information). Obviously, it is not useful to accumulate large amounts of information if we cannot find a particular piece of information. The current methods prove to be expensive and the results are too often inappropriate. The goal of the research described here is to present an approach for automating the detection and the extraction of meaning from unstructured data using its normalized part: Web of data & Linked Open data (LOD). On the other hand, in structured indexes, classification systems, thesauri, conceptual structures or semantic networks, relationships are too often vague. One possible approach to this problem consists in organizing the relationships in a typology based on logical properties. For instance, we typically use only the general relation “Is-a” (too vague). We propose an original method: Contextual Exploration. This is implemented in the EC3 software. EC3 does not need syntactic analysis, statistical analysis nor a "general" ontology. EC3 uses only small ontologies called "linguistic ontologies" which depend on the knowledge of the language.

Keywords
Big Textual Data, Extraction of Pertinent Information, Data Mining for Information Retrieval, Big Data Analysis, Web Semantics, Computational linguistics, Ontologies, Text Mining, Web Mining, (Big, Linked, Smart) Data, Semantic relations, Contextual Exploration, Qualitative Research, Relationships, Hierarchies, Concept, Semantics, Logical Properties, EC3.

Cite this paper
Jouis Christophe, Orús-Lacort Mercedes, How to extract knowledge of Qualitative Data from Big Textual Data , SCIREA Journal of Computer. Volume 6, Issue 1, February 2021 | PP. 18-53. 10.54647/computer52243

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