Detalles del recurso


The increasing use of mobile social networks has lately transformed news media. Real-world events are nowadays reported in social networks much faster than in traditional channels. As a result, the autonomous detection of events from networks like Twitter has gained lot of interest in both research and media groups. DBSCAN-like algorithms constitute a well-known clustering approach to retrospective event detection. However, scaling such algorithms to geographically large regions and temporarily long periods present two major shortcomings. First, detecting real-world events from the vast amount of tweets cannot be performed anymore in a single machine. Second, the tweeting activity varies a lot within these broad space-time regions limiting the use of global parameters. Against this background, we propose to scale DBSCAN-like event detection techniques by parallelizing and distributing them through a novel density-aware MapReduce scheme. The proposed scheme partitions tweet data as per its spatial and temporal features and tailors local DBSCAN parameters to local tweet densities. We implement the scheme in Apache Spark and evaluate its performance in a dataset composed of geo-located tweets in the Iberian peninsula during the course of several football matches. The results pointed out to the benefits of our proposal against other state-of-the-art techniques in terms of speed-up and detection accuracy.

Pertenece a



Capdevila, Joan -  Pericacho, Gonzalo -  Torres, Jordi -  Cerquides, Jesus - 

Id.: 70423047

Idioma: eng  - 

Versión: 1.0

Estado: Final

Palabras claveEvent detection - 

Tipo de recurso: Capítulo de libro  - 

Tipo de Interactividad: Expositivo

Nivel de Interactividad: muy bajo

Audiencia: Estudiante  -  Profesor  -  Autor  - 

Estructura: Atomic

Coste: no

Copyright: sí

: closedAccess

Requerimientos técnicos:  Browser: Any - 

Relación: [References] MINECO/TIN2015-65316; MINECO/TIN2015-66863-C2-1-R
[References] Sí

Fecha de contribución: 18-nov-2017


* doi:
* isbn: 978-3-319-49582-8

Otros recursos de la mismacolección

  1. A reward-based approach for preference modeling: A case study Most of reasoning for decision making in daily life is based on preferences. As other kinds of reaso...
  2. Advances in Weighted Logics for Artificial Intelligence Peer Reviewed
  3. On the existence of free models in fuzzy universal Horn classes This paper is a contribution to the study of the universal Horn fragment of predicate fuzzy logics, ...
  4. Interdecadal Variability of Southeastern South America Rainfall and Moisture Sources during the Austral Summertime Sea surface temperature (SST) anomalies over the tropical oceans are able to generate extratropical ...
  5. Heat flux of a granular gas with homogeneous temperature A steady state of granular gas with homogeneous granular temperature, no mass flow, and nonzero heat...

Aviso de cookies: Usamos cookies propias y de terceros para mejorar nuestros servicios, para análisis estadístico y para mostrarle publicidad. Si continua navegando consideramos que acepta su uso en los términos establecidos en la Política de cookies.