header

Automatic Acquisition of a Taxonomy of Microblogs Users’ Interests

19 Pages Posted: 24 Jun 2018 First Look: Accepted

See all articles by Stefano Faralli

Stefano Faralli

University of Mannheim

Giovanni Stilo

University of Rome I

Paola Velardi

University of Rome I

Abstract

Modeling users’ interests plays an important role in the current web since it is at the basis of many services such as recommendation and customization. Using semantic technologies to represent users’ interests may help to reduce problems such as sparsity, overspecialization and domain-dependency, which are known to be critical issues of state of the art recommenders. In this paper we present a method for high-coverage modeling of Twitter users supported by a hierarchical representation of their interests, which we call a Twixonomy. In order to automatically build a population, community, or single-user Twixonomy we first identify ”topical” friends in users’ friendship lists (i.e., friends representing an interest rather than a social relation between peers). We classify as topical those users with an associated page on Wikipedia. A word-sense disambiguation algorithm is used to select the appropriate Wikipedia page for each topical friend. Next, starting from the set of wikipages representing the main topics of interests of the considered Twitter population, we extract all paths connecting these pages with topmost Wikipedia category nodes, and we then prune the resulting graph eciently so as to induce a direct acyclic graph and significantly reduce over ambiguity, a well known problem of the Wikipedia category graph. We release the Twixonomy produced in this work under Creative Common license.

Keywords: social network analysis, semantic profiling, automated ontology learning

Suggested Citation

Faralli, Stefano and Stilo, Giovanni and Velardi, Paola, Automatic Acquisition of a Taxonomy of Microblogs Users’ Interests (2017). Journal of Web Semantics First Look 45_0_2. Available at SSRN: https://ssrn.com/abstract=3199305 or http://dx.doi.org/10.2139/ssrn.3199305

Stefano Faralli

University of Mannheim

Universitaetsbibliothek Mannheim
Zeitschriftenabteilung
Mannheim, 68131
Germany

Giovanni Stilo

University of Rome I

Piazzale Aldo Moro, 5
Rome, 00185
Italy

Paola Velardi (Contact Author)

University of Rome I

Piazzale Aldo Moro, 5
Rome, 00185
Italy

Register to save articles to
your library

Register

Paper statistics

Abstract Views
107
Downloads
8