A Hybrid Cluster-Lift Method for the Analysis of Research Activities

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Citation (Scopus)


A hybrid of two novel methods - additive fuzzy spectral clustering and lifting method over a taxonomy - is applied to analyse the research activities of a department. To be specific, we concentrate on the Computer Sciences area represented by the ACM Computing Classification System (ACM-CCS), but the approach is applicable also to other taxonomies. Clusters of the taxonomy subjects are extracted using an original additive spectral clustering method involving a number of model-based stopping conditions. The clusters are parsimoniously lifted then to higher ranks of the taxonomy by minimizing the count of "head subjects" along with their "gaps" and "offshoots". An example is given illustrating the method applied to real-world data.
Original languageUnknown
Title of host publicationLecture Notes in Computer Science
Publication statusPublished - 1 Jan 2010
EventConference on Hybrid Artificial Intelligence Systems (HAIS'10) -
Duration: 1 Jan 2010 → …


ConferenceConference on Hybrid Artificial Intelligence Systems (HAIS'10)
Period1/01/10 → …

Cite this