Memorias de investigación
Ponencias en congresos:
Efficient Clustering from Distributions over Topics
Año:2017

Áreas de investigación
  • Ciencias de la computación y tecnología informática

Datos
Descripción
There are many scenarios where we may want to find pairs of textually similar documents in a large corpus (e.g. a researcher doing literature review, or an R&D project manager analyzing project proposals). To programmatically discover those connections can help experts to achieve those goals, but brute-force pairwise comparisons are not computationally adequate when the size of the document corpus is too large. Some algorithms in the literature divide the search space into regions containing potentially similar documents, which are later processed separately from the rest in order to reduce the number of pairs compared. However, this kind of unsupervised methods still incur in high temporal costs. In this paper, we present an approach that relies on the results of a topic modeling algorithm over the documents in a collection, as a means to identify smaller subsets of documents where the similarity function can then be computed. This approach has proved to obtain promising results when identifying similar documents in the domain of scientific publications. We have compared our approach against state of the art clustering techniques and with different configurations for the topic modeling algorithm. Results suggest that our approach outperforms (> 0.5) the other analyzed techniques in terms of efficiency.
Internacional
Si
Nombre congreso
9th International Conference on Knowledge Capture KCAP 2017
Tipo de participación
960
Lugar del congreso
Austin, TX, USA
Revisores
Si
ISBN o ISSN
978-1-4503-5553-7
DOI
10.1145/3148011.3148019
Fecha inicio congreso
04/12/2017
Fecha fin congreso
06/12/2017
Desde la página
1
Hasta la página
8
Título de las actas
Proceedings of the 9th International Conference on Knowledge Capture (K-CAP)

Esta actividad pertenece a memorias de investigación

Participantes

Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Ontology Engineering Group
  • Departamento: Inteligencia Artificial