Committee-Based Profiles for Politician Finding
Metadatos
Afficher la notice complèteMateria
User profiles politician recommendation Expert finding Information retrieval
Date
2017-12Patrocinador
This work has been funded by the Spanish Ministerio de Economı́a y Competitividad under projects TIN2013-42741-P and TIN2016-77902-C3-2-P, and the European Regional Development Fund (ERDF-FEDER).Résumé
One step towards breaking down barriers between citizens and politicians is to help
people identify those politicians who share their concerns. This paper is set in the field
of expert finding and is based on the automatic construction of politicians’ profiles
from their speeches on parliamentary committees. These committee-based profiles are
treated as documents and are indexed by an information retrieval system. Given a query
representing a citizen’s concern, a profile ranking is then obtained. In the final step, the
different results for each candidate are combined in order to obtain the final politician
ranking. We explore the use of classic combination strategies for this purpose and present
a new approach that improves state-of-the-art performance and which is more stable
under different conditions. We also introduce a two-stage model where the identification
of a broader concept (such as the committee) is used to improve the final politician
ranking.