Zobrazeno 11 - 20
of 108
pro vyhledávání: '"Mieczyslaw A. Klopotek"'
Publikováno v:
IFIP Advances in Information and Communication Technology ISBN: 9783030491604
AIAI (1)
AIAI (1)
We present a novel justification why k-means clusters should be (hyper)ball-shaped ones. We show that the clusters must be ball-shaped to attain motion-consistency. If clusters are ball-shaped, one can derive conditions under which two clusters attai
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d825b5e5c328b68f7acc13a9112f10ce
https://doi.org/10.1007/978-3-030-49161-1_10
https://doi.org/10.1007/978-3-030-49161-1_10
Publikováno v:
Advanced Data Mining and Applications ISBN: 9783030352301
ADMA
ADMA
In a former paper [10] we simplified the proof of a theorem on personalized random walk that is fundamental to graph nodes clustering and generalized it to bipartite graphs for a specific case where the probability of random jump was proportional to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b7524ec08a04c1876c5fe5922ae6f9d
https://doi.org/10.1007/978-3-030-35231-8_17
https://doi.org/10.1007/978-3-030-35231-8_17
Publikováno v:
Machine Learning, Optimization, and Data Science ISBN: 9783030375980
LOD
LOD
With Kleinberg’s axiomatic system for clustering, a discussion has been initiated, what kind of properties clustering algorithms should have and have not. As Ackerman et al. pointed out, the static properties studied by Kleinberg and other are not
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b312a5fbc4e7686c88594906cbb8a96
https://doi.org/10.1007/978-3-030-37599-7_22
https://doi.org/10.1007/978-3-030-37599-7_22
Publikováno v:
Studies in Big Data ISBN: 9783319693071
While Chap. 2 presented the broadness of the spectrum of clustering methods, this chapter focusses on clustering of objects that are embedded in some metric space and gives an insight into the potential variations of clustering algorithms driven by p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d2905e7d5eb7d51a1159acb56a4a8c3
https://doi.org/10.1007/978-3-319-69308-8_3
https://doi.org/10.1007/978-3-319-69308-8_3
Publikováno v:
Studies in Big Data ISBN: 9783319693071
This chapter is devoted to actions to be performed in order to get maximum insights into the data by application of clustering algorithms. For data preprocessing stage, methods for choosing the appropriate set of features and algorithms for selection
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2431bc11d18deb581785cd9bf9333c77
https://doi.org/10.1007/978-3-319-69308-8_4
https://doi.org/10.1007/978-3-319-69308-8_4
Publikováno v:
Studies in Big Data ISBN: 9783319693071
This chapter discusses a specific, yet quite important application area of cluster analysis that is of community detection in large empirical graphs. The chapter introduces a number of alternative understandings of the term community, which lead to a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f9eb0112b6b5e43424c5c7cefa38c72
https://doi.org/10.1007/978-3-319-69308-8_6
https://doi.org/10.1007/978-3-319-69308-8_6
Publikováno v:
Fundamenta Informaticae. 139:229-248
Latency of user-based and item-based recommenders is evaluated. The two algorithms can deliver high quality predictions in dynamically changing environments. However, their response time depends not only on the size, but also on the structure of unde
Autor:
Mieczyslaw A. Klopotek
We define the notion of a well-clusterable data set combining the point of view of the objective of $k$-means clustering algorithm (minimising the centric spread of data elements) and common sense (clusters shall be separated by gaps). We identify co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::288fe38bb79237de83897cd726a29bcb
http://arxiv.org/abs/1704.07139
http://arxiv.org/abs/1704.07139
Autor:
Mieczyslaw A. Klopotek
In this paper we would like to contest the results of Y. F. Wang, N. Karandikar and J. K. Aggarwal [ Pattern Recognition 24 , 1065–1085 (1991)] raising two fundamental claims. • • A line does not contribute anything to recognition of motion par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acd42b207dc556338dc6434cde9d6b72
http://arxiv.org/abs/1704.05267
http://arxiv.org/abs/1704.05267
Autor:
Barbara Gałusza, Mieczyslaw A. Klopotek, Kornel Szczygielski, Piotr Rapiejko, Dariusz Jurkiewicz
Publikováno v:
Acta oto-laryngologica. 137(9)
The balloon catheter has been used for a decade to dilate paranasal sinus outflow tracts. The question is: how wide and how durable is the dilation of drainage pathways in patients in long-term observations after this procedure?The objective of our s