Tag recommendation for open government data by multi-label classification and particular noun phrase extraction

Yasuhiro Yamada, Tetsuya Nakatoh

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Open government data (OGD) is statistical data made and published by governments. Administrators often give tags to the metadata of OGD. Tags, which are a collection of a single word or multiple words, express the data. Tags are useful to understand the data without actually reading the data and also to search for OGD. However, administrators have to understand the data in detail in order to assign tags. We take two different approaches for giving appropriate tags to OGD. First, we use a multi-label classification technique to give tags to OGD from tags in the training data. Second, we extract particular noun phrases from the metadata of OGD by calculating the difference between the frequency of a noun phrase and the frequencies of single words within the noun phrase. Experiments using 196,587 datasets on Data.gov show that the accuracy of prediction by the multi-label classification method is enough to develop a tag recommendation system. Also, the experiments show that our extraction method of particular noun phrases extracts some infrequent tags of the datasets.

Original languageEnglish
Title of host publicationIC3K 2018 - Proceedings of the 10th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management
EditorsAna Carolina Salgado, Jorge Bernardino, Joaquim Filipe
PublisherSciTePress
Pages83-91
Number of pages9
ISBN (Electronic)9789897583308
Publication statusPublished - Jan 1 2018
Event10th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, IC3K 2018 - Seville, Spain
Duration: Sep 18 2018Sep 20 2018

Publication series

NameIC3K 2018 - Proceedings of the 10th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management
Volume3

Other

Other10th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management, IC3K 2018
CountrySpain
CitySeville
Period9/18/189/20/18

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All Science Journal Classification (ASJC) codes

  • Software

Cite this

Yamada, Y., & Nakatoh, T. (2018). Tag recommendation for open government data by multi-label classification and particular noun phrase extraction. In A. C. Salgado, J. Bernardino, & J. Filipe (Eds.), IC3K 2018 - Proceedings of the 10th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management (pp. 83-91). (IC3K 2018 - Proceedings of the 10th International Joint Conference on Knowledge Discovery, Knowledge Engineering and Knowledge Management; Vol. 3). SciTePress.