A Knowledge Extraction and Management Component to Support Spontaneous Participation

  • Lukasz Porwol
  • Islam Hassan
  • Adegbojega Ojo
  • John Breslin
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9249)

Abstract

Harnessing spontaneous contributions of citizens on Social Media and networking sites is a major feature of the next generation citizen-led e-Participation paradigm. However, extracting information of interest from Social Media streams is a challenging task and requires support from domain specific language resources such as lexica. This work describes our efforts at developing a Knowledge Extraction and Management component which employs a lexicon for extracting information related to public services in Social Media contents or streams as part of a holistic technology infrastructure for citizen-led e-Participation. Our approach consists of three basic steps – (1) acquisition and refinement of public service catalogues, (2) organization of the public service names into a lexicon based on different semantic similarity measures and (3) development of a dictionary-based Named Entity Recognizer (NER) or “spotter” based on the lexicon. We evaluate the performance of the NER solution supported by contextual information generated by two well-known general-purpose information NER tools (DBpedia Spotlight and Alchemy) on a dataset of tweets. Results show that our strategy to domain specific information extraction from Social Media is effective. We conclude with a scenario on how our approach could be scaled-up to extract other types of information from citizen discussions on Social Media.

Keywords

e-Participation Citizen-led e-Participation Information extraction (IE) Natural Language Processing (NLP) Public services e-Government 

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Copyright information

© IFIP International Federation for Information Processing 2015

Authors and Affiliations

  • Lukasz Porwol
    • 1
  • Islam Hassan
    • 1
  • Adegbojega Ojo
    • 1
  • John Breslin
    • 1
  1. 1.Insight Centre for Data AnalyticsNational University of IrelandGalwayIreland

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