Title
Comparison of topic extraction approaches and their results.
Abstract
This is the last paper in the Synthesis section of this special issue on `Same Data, Different Results'. We first provide a framework of how to describe and distinguish approaches to topic extraction from bibliographic data of scientific publications. We then compare solutions delivered by the different topic extraction approaches in this special issue, and explore where they agree and differ. This is achieved without reference to a ground truth, since we have to assume the existence of multiple, equally important, valid perspectives and want to avoid bias through the adoption of an ad-hoc yardstick. Instead, we apply different ways to quantitatively and visually compare solutions to explore their commonalities and differences and develop hypotheses about the origin of these differences. We conclude with a discussion of future work needed to develop methods for comparison and validation of topic extraction results, and express our concern about the lack of access to non-proprietary benchmark data sets to support method development in the field of scientometrics.
Year
DOI
Venue
2017
10.1007/s11192-017-2306-1
Scientometrics
Keywords
Field
DocType
Topic extraction, Comparative methods, Astrophysics, Data modeling, Clustering, Topic labeling, Science mapping
Data science,Science mapping,Data mining,Data modeling,Data set,Information retrieval,Computer science,Ground truth,Yardstick,Scientometrics,Cluster analysis
Journal
Volume
Issue
ISSN
111
2
1588-2861
Citations 
PageRank 
References 
15
0.74
16
Authors
6
Name
Order
Citations
PageRank
Theresa Velden117113.52
Kevin W. Boyack2136484.57
Jochen Gläser3403.94
Rob Koopman4454.37
Andrea Scharnhorst532841.63
Shenghui Wang6504.09