Publication
Paired indices for clustering evaluation correction for agreement by chance
| dc.contributor.author | Amorim, Maria José de Pina da Cruz | |
| dc.contributor.author | Cardoso, Margarida G. M. S. | |
| dc.date.accessioned | 2015-08-25T14:38:21Z | |
| dc.date.available | 2015-08-25T14:38:21Z | |
| dc.date.issued | 2014 | |
| dc.description.abstract | In the present paper we focus on the performance of clustering algorithms using indices of paired agreement to measure the accordance between clusters and an a priori known structure. We specifically propose a method to correct all indices considered for agreement by chance - the adjusted indices are meant to provide a realistic measure of clustering performance. The proposed method enables the correction of virtually any index - overcoming previous limitations known in the literature - and provides very precise results. We use simulated datasets under diverse scenarios and discuss the pertinence of our proposal which is particularly relevant when poorly separated clusters are considered. Finally we compare the performance of EM and KMeans algorithms, within each of the simulated scenarios and generally conclude that EM generally yields best results. | por |
| dc.identifier.citation | AMORIM, Maria José de Pina da Cruz; CARDOSO, Margarida G. M. S. – Paired indices for clustering evaluation correction for agreement by chance. In ICEIS 2014 - Proceedings of the 16th International Conference on Enterprise Information Systems. SciTePress, 2014. Vol. 1, pp. 164-170 | por |
| dc.identifier.isbn | 978-989758027-7 | |
| dc.identifier.uri | http://hdl.handle.net/10400.21/5013 | |
| dc.language.iso | eng | por |
| dc.peerreviewed | yes | por |
| dc.publisher | SciTePress | por |
| dc.subject | Adjusted Indices | por |
| dc.subject | Clustering Evaluation | por |
| dc.subject | Indices of Paired Agreement | por |
| dc.title | Paired indices for clustering evaluation correction for agreement by chance | por |
| dc.type | conference object | |
| dspace.entity.type | Publication | |
| oaire.citation.endPage | 170 | por |
| oaire.citation.startPage | 164 | por |
| oaire.citation.title | ICEIS 2014 - Proceedings of the 16th International Conference on Enterprise Information Systems | por |
| oaire.citation.volume | 1 | por |
| rcaap.rights | closedAccess | por |
| rcaap.type | conferenceObject | por |
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