{"id":137,"date":"2016-03-02T11:52:57","date_gmt":"2016-03-02T10:52:57","guid":{"rendered":"https:\/\/www.kde.cs.uni-kassel.de\/?page_id=137"},"modified":"2025-10-01T12:59:45","modified_gmt":"2025-10-01T10:59:45","slug":"hanika","status":"publish","type":"page","link":"https:\/\/www.kde.cs.uni-kassel.de\/en\/hanika","title":{"rendered":"Dr. Tom Hanika"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"alignright\"><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"200\" src=\"https:\/\/www.kde.cs.uni-kassel.de\/wp-content\/uploads\/2020\/07\/hanika_small.jpg\" alt=\"\" class=\"wp-image-7269\"\/><\/figure>\n<\/div>\n\n\n<p><strong>Dr. Tom Hanika<\/strong><br>(@ <a href=\"https:\/\/www.uni-hildesheim.de\/fb4\/institute\/ifi\/intelligente-informationssysteme-iis\/mitglieder\/professor-dr-tom-hanika\/\">Universit\u00e4t Hildesheim<\/a>)<br>Raum 0445F<br><a href=\"http:\/\/www.uni-kassel.de\/\"><u><span style=\"color: #0066cc;\">Universit\u00e4t Kassel<\/span><\/u><\/a><br><a href=\"http:\/\/www.uni-kassel.de\/fb16\/\"><u><span style=\"color: #0066cc;\">Fachbereich Elektrotechnik\/Informatik<\/span><\/u><\/a><br><a href=\"http:\/\/www.kde.cs.uni-kassel.de\/\"><u><span style=\"color: #0066cc;\">Fachgebiet Wissensverarbeitung<\/span><\/u><\/a><br>Wilhelmsh\u00f6her Allee 73, 34121 Kassel<br>Tel.: +49 561 804-6252<br>Email: <a href=\"mailto:Tom.Hanika@cs.uni-kassel.de\"><u><span style=\"color: #0066cc;\">Tom.Hanika@cs.uni-kassel.de<\/span><\/u><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><a href=\"http:\/\/www.bibsonomy.org\/cv\/user\/tomhanika\" rel=\"attachment wp-att-1734\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.kde.cs.uni-kassel.de\/wp-content\/uploads\/2016\/03\/logo_bibsonomy.png\" alt=\"logo_bibsonomy\" width=\"48\" height=\"48\"><\/a>&nbsp; &nbsp;<a href=\"http:\/\/www.linkedin.com\/in\/tomhanika\" rel=\"attachment wp-att-1735\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.kde.cs.uni-kassel.de\/wp-content\/uploads\/2016\/03\/logo_linkedin.png\" alt=\"logo_linkedin\" width=\"48\" height=\"48\"><\/a>&nbsp; &nbsp;&nbsp;about me<\/h2>\n\n\n\n<p><mark style=\"background-color:#7bdcb5\" class=\"has-inline-color has-vivid-red-color\">I am Co-Director of the Information Systems and Machine Learning Lab @ University of Hildesheim and at the same time Research Associate with the KDE at the University of Kassel.<\/mark><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>My research at Kassel University includes foundations and applications of knowledge discovery in (graph) data structures, in particular their relation to methods from formal concept analysis. In detail, I apply results from applied algebra,&nbsp; geometric measure theory, topology and logic, at the intersection of knowledge discovery, artificial intelligence, machine learning, and reasoning. I am also a senior developer of the social bookmark and publication sharing system <a href=\"http:\/\/www.bibsonomy.org\/\"><u><span style=\"color: #0066cc;\">BibSonomy<\/span><\/u><\/a> as well as maintainer of the Formal Concept Analysis tool&nbsp; <a href=\"https:\/\/github.com\/tomhanika\/conexp-clj\">conexp-clj<\/a>. For the Summer&nbsp;term 2019 I was on leave for an interim professorship at the <a href=\"https:\/\/www.ibi.hu-berlin.de\/de\/ueber-uns\/personen\/hanika\">Humboldt-Universit\u00e4t zu Berlin<\/a>, where I still hold a lectureship. Additionally, in the summer term 2021 I held a lectureship at the  <a href=\"https:\/\/www.informatik.uni-wuerzburg.de\">Institute of Computer Science at the University of W\u00fcrzburg<\/a>. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\">selected publications (<a href=\"https:\/\/www.kde.cs.uni-kassel.de\/hanika\/publications\" target=\"_blank\" rel=\"noreferrer noopener\">click for full list<\/a>)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Hanika, T., Schneider, F.M., Stumme, G.: <strong>Intrinsic Dimension of Geometric Data Sets<\/strong>. Tohoku Mathematical Journal. 74, 23&#8211; 52 (2022).<\/li>\n\n\n\n<li>Stubbemann, M., Hanika, T. &amp; Schneider, F. M. <strong>Intrinsic Dimension for Large-Scale Geometric Learning<\/strong>. Transactions on Machine Learning Research. (2023)<\/li>\n\n\n\n<li>Hanika, T., Hirth, J.: <strong>On the lattice of conceptual measurements<\/strong>. Information Sciences. 613, 453\u2013468 (2022).<\/li>\n\n\n\n<li>Hanika, T., Hirth, J.: <strong>Knowledge cores in large formal contexts<\/strong>. Annals of Mathematics and Artificial Intelligence. 90, 537&#8211;567 (2022).<\/li>\n\n\n\n<li>Sch\u00e4fermeier, B., Hirth, J., Hanika, T.: <strong>Research Topic Flows in Co-Authorship Networks<\/strong>. Scientometrics. (2022).<\/li>\n\n\n\n<li>Sch\u00e4fermeier, B., Stumme G., Hanika, T.: <strong>Topic Space Trajectories: A Case Study on Machine Learning Literature<\/strong>. Scientometrics. (2021).<\/li>\n\n\n\n<li>Borchmann, D., Hanika, T., Obiedkov, S.: <strong>Probably approximately correct learning of Horn envelopes from queries<\/strong>. Discrete Applied Mathematics. 273, 30\u201342 (2020).<\/li>\n\n\n\n<li>Hanika, T., Marx, M., Stumme, G.: <strong>Discovering Implicational Knowledge in Wikidata<\/strong>. In: Cristea, D., Ber, F.L., and Sertkaya, B. (eds.) ICFCA. pp. 315\u2013323. Springer (2019).<\/li>\n\n\n\n<li>Hanika, T., Zumbr\u00e4gel, J.: <strong>Towards Collaborative Conceptual Exploration<\/strong>. In: Chapman, P., Endres, D., and Pernelle, N. (eds.) ICCS. pp. 120\u2013134. Springer (2018).<\/li>\n\n\n\n<li>Borchmann, D., Hanika, T.: <strong>Individuality in Social Networks<\/strong>. In: Missaoui, R., Kuznetsov, S.O., and Obiedkov, S. (eds.) Formal Concept Analysis of Social Networks. pp. 19&#8211;40. Springer (2017).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">teaching<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>In Winter 2022 I gave the course <em><a rel=\"noreferrer noopener\" href=\"https:\/\/moodle.uni-kassel.de\/course\/view.php?id=6155\" target=\"_blank\">K\u00fcnstliche Intelligenz<\/a><\/em> at the University of Kassel.<\/li>\n\n\n\n<li>In Summer 2022 I gave the course <a href=\"https:\/\/www.uni-kassel.de\/go\/db22\">Databases<\/a> at the University of Kassel.<\/li>\n\n\n\n<li>In Winter 2021 I gave a course about <a href=\"https:\/\/www.kde.cs.uni-kassel.de\/lehre\/ws2021-22\/sna\" data-type=\"page\" data-id=\"8030\">Social Network Analysis<\/a>.<\/li>\n\n\n\n<li>In Summer 2021 I gave the course <em>Databases<\/em> at the University of Kassel, a course about <em>Information Retrieval<\/em> at the University of W\u00fcrzburg and lectured about <em>Information Processing and Storage<\/em> at the Humboldt-Universit\u00e4t zu Berlin.<\/li>\n\n\n\n<li>In Winter 2020 I gave a lecture about <a href=\"https:\/\/www.kde.cs.uni-kassel.de\/lehre\/ws2020-21\/sna\">Social Network Analysis<\/a>.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-right\">News about teaching can be found on <a href=\"https:\/\/twitter.com\/TomsTeaching\">Twitter<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">selected past and future invited talks (<a rel=\"noreferrer noopener\" href=\"https:\/\/www.kde.cs.uni-kassel.de\/hanika\/talks-by-tom-hanika\" target=\"_blank\">click full list<\/a>)<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Feb. 2023: Lattice Based Machine Learning \u2013 Foundations and Applications, Summer School of the Graduate Program in Mathematics, Federal University of Para\u0131\u0301ba, Joa\u0303o Pessoa, Brazil<\/li>\n\n\n\n<li>Sep. 2022: <em>Order and Knowledge in Digital Humanities*<\/em>, \u201cDigital Humanities meet Mathematics\u201d, DIHMA.LAB\/MaRDI, FU Berlin, Germany<\/li>\n\n\n\n<li>March 2022: <em>Exploring Polygenic Adaptation using Lattices*<\/em>, Workshop on Methods and Appl. for Pop. Genetics\/Genomics of Tree Species (EU H2020 B4EST), Irat\u0131\u0301, Spain<\/li>\n\n\n\n<li>March 2021: <em>Conceptual Exploration Based Surrogate Learning<\/em><strong>*<\/strong>, Application of Formal Sciences &#8212; Explainable Artificial Intelligence, Dagstuhl-Event<\/li>\n\n\n\n<li>July 2019: <em>An Invitation to Formal Concept Analysis<\/em><strong>*<\/strong>, International Conferences on Conceptual Structures at Philipps-Universit\u00e4t Marburg, Germany<\/li>\n\n\n\n<li>July 2018 : <em>Intrinsic Dimension in Clustering<\/em><strong>*<\/strong> , Col\u00f3quio de Departamento de Matem\u00e1tica at Universidade Federal de Santa Catarina, Florianopolis, Brazil.<\/li>\n<\/ul>\n\n\n\n<p class=\"has-text-align-right\"><em>(invited talks marked with *)<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reviewing &#8212; Journals:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Discrete Applied Mathematics<\/li>\n\n\n\n<li>Journal of Mathematics and Music<\/li>\n\n\n\n<li>Scientometrics<\/li>\n\n\n\n<li>Knowledge and Information Systems<\/li>\n\n\n\n<li>International Journal of Approximate Reasoning<\/li>\n\n\n\n<li>KI &#8211; K\u00fcnstliche Intelligenz<\/li>\n\n\n\n<li>Mathematical and Computational Applications<\/li>\n\n\n\n<li>Fundamenta Informaticae<\/li>\n\n\n\n<li>Annals of Mathematics and Artificial Intelligence<br><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Reviewing &#8212; Conferences:<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Editorial Board Member: <\/strong>\n<ul class=\"wp-block-list\">\n<li>International Conference on Formal Concept Analysis<\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>PC Chair:<\/strong>\n<ul class=\"wp-block-list\">\n<li>16th International Conference on Formal Concept Analysis (<a href=\"https:\/\/icfca2021.sciencesconf.org\/\">ICFCA 2021<\/a>)<\/li>\n\n\n\n<li>26th International Conference on Conceptual Structures (<a href=\"https:\/\/iccs-conference.org\/\">ICCS 2021<\/a>) <\/li>\n<\/ul>\n<\/li>\n\n\n\n<li><strong>PC Member:&nbsp;<\/strong><br>International Conference on Formal Concept Analysis (ICFCA 2019), European Conference on Machine Learning and Practice of Knowledge Discovery in Databases (ECMLPKDD 2019, 2020, 2021,2022), International Semantic Web Conference (ISCW 2020, 2021, 2022,2023), Russian Conference on Artificial Intelligence (RCAI 2019, 2020, 2021)<\/li>\n\n\n\n<li><strong>Subreviewer for:<\/strong><br>International Conference on Concept Lattices and Their Applications (CLA 2018), European Conference on Machine Learning and Practice of Knowledge Discovery in Databases (ECMLPKDD 2016, 2017, 2018),&nbsp; International World Wide Web Conference (WWW 2016, 2018), International Conference on Formal Concept Analysis (ICFCA 2017), International Semantic Web Conference (ISWC 2016, 2017, 2018), Annual ACM SIGKDD Conference (KDD 2016)<span style=\"font-size: inherit;\">, International Conference on Concept Lattices and Their Applications <\/span>(CLA 2016, 2018)<span style=\"font-size: inherit;\">, Extended Semantic Web Conference (ESWC 2016)<\/span><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"projects\">projects<\/h2>\n\n\n\n<p>Complementary to my theoretical research, I develop, contribute or maintain the following software projects.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Dimension Curse Detector<\/strong><\/h3>\n\n\n\n<p>In this project funded by the state of Hesse, within the <a href=\"https:\/\/wissenschaft.hessen.de\/Forschen\/Landesprogramm-LOEWE\/LOEWE-Exploration\" target=\"_blank\" rel=\"noreferrer noopener\">LOEWE Exploration<\/a> program, I try to reveal high dimensional effects in the field of machine learning. In the center of my research is an aspect of the Dimension Curse which is based on the mathematical phenomenon of concentration.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>conexp-clj &#8212; a research tool for FCA<\/strong><\/h3>\n\n\n\n<p>As part of my research I continue to develop the research tool <a href=\"https:\/\/github.com\/tomhanika\/conexp-clj\" rel=\"attachment noopener wp-att-1732 noreferrer\" target=\"_blank\">conexp-clj<\/a>, originally created by Dr. Daniel <a href=\"https:\/\/github.com\/exot\">Borchmann<\/a>. Having this tool at hand, I am able to test and analyze the theoretical research efforts in the realm of relational data analysis and related fields.<\/p>\n\n\n\n<p>The most recent, pre-compiled, release candidate can be downloaded <a href=\"http:\/\/algebra20.de\/conexp\/conexp-clj-2.1.1-SNAPSHOT-standalone.jar\">here<\/a>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>BibSonomy<\/strong><\/h3>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.kde.cs.uni-kassel.de\/team\/mitarbeiter\/hanika\/bibsonomy-2\/\" rel=\"attachment wp-att-1737\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1737 alignleft\" src=\"https:\/\/www.kde.cs.uni-kassel.de\/wp-content\/uploads\/2016\/03\/bibsonomy.png\" alt=\"bibsonomy\" width=\"141\" height=\"165\"><\/a><\/h3>\n\n\n\n<p>BibSonomy is a scholarly social bookmarking system where researchers manage their collections of publications and web pages. BibSonomy is an open source project, continously developed by researchers in Kassel, W\u00fcrzburg, and Hanover. Functioning as a test bed for recommendation and ranking algorithms, as well as through the publicly available datasets, containing traces of user behavior on the Web, BibSonomy has been the subject of various scientific studies.<br><a href=\"http:\/\/bibsonomy.bitbucket.org\/\"><u><span style=\"color: #0066cc;\">About<\/span><\/u><\/a> <a href=\"http:\/\/www.bibsonomy.org\/\"><u><span style=\"color: #0066cc;\">BibSonomy<\/span><\/u><\/a>&nbsp;<a href=\"http:\/\/blog.bibsonomy.org\/\"><u><span style=\"color: #0066cc;\">Blog<\/span><\/u><\/a>&nbsp;<a href=\"https:\/\/bitbucket.org\/bibsonomy\/bibsonomy\/\"><u><span style=\"color: #0066cc;\">Open Source Repo<\/span><\/u><\/a>&nbsp;<a href=\"https:\/\/twitter.com\/BibSonomyCrew\"><u><span style=\"color: #0066cc;\">Twitter<\/span><\/u><\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"projects\">former projects<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.kde.cs.uni-kassel.de\/team\/mitarbeiter\/hanika\/wiskidz\/\" rel=\"attachment wp-att-1736\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-1736 alignleft\" src=\"https:\/\/www.kde.cs.uni-kassel.de\/wp-content\/uploads\/2016\/03\/wiskidz.png\" alt=\"wiskidz\" width=\"196\" height=\"139\" srcset=\"https:\/\/www.kde.cs.uni-kassel.de\/wp-content\/uploads\/2016\/03\/wiskidz.png 841w, https:\/\/www.kde.cs.uni-kassel.de\/wp-content\/uploads\/2016\/03\/wiskidz-300x212.png 300w, https:\/\/www.kde.cs.uni-kassel.de\/wp-content\/uploads\/2016\/03\/wiskidz-768x543.png 768w\" sizes=\"auto, (max-width: 196px) 100vw, 196px\" \/><\/a>Wiskidz<\/h3>\n\n\n\n<p>The WISKIDZ project was a joint project of the International Centre for Higher Education Research (INCHER-Kassel) and the Interdisciplinary Research Center for Information System Design (ITeG) at the University of Kassel, supported by the BMBF. It contributed to a better understanding of long-term developments in the recruiting behavior in public research and individual career paths after obtaining a doctoral degree. The analyses are based on dissertation data, which are supplemented by information on publications, patents and macro-economic data among others. Essentially the project aims to understand changes in recruiting behavior over time with a special focus put on disciplinary idiosyncrasies. We create and analyze genealogies of doctoral students and their advisors in selected fields (physics, electronics, management and medieval history) from 1945 to the present. Further the project probes into the interdependencies of academic and non-academic employment opportunities of young researchers.<br><a href=\"http:\/\/www.bibsonomy.org\/persons\/\"><u><span style=\"color: #0066cc;\">About<\/span><\/u><\/a><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><\/h3>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Dr. Tom Hanika(@ Universit\u00e4t Hildesheim)Raum 0445FUniversit\u00e4t KasselFachbereich Elektrotechnik\/InformatikFachgebiet WissensverarbeitungWilhelmsh\u00f6her Allee 73, 34121 KasselTel.: +49 561 804-6252Email: Tom.Hanika@cs.uni-kassel.de &nbsp; &nbsp;&nbsp; &nbsp;&nbsp;about me I am Co-Director of the Information Systems and Machine Learning Lab @ University of<a class=\"moretag\" href=\"https:\/\/www.kde.cs.uni-kassel.de\/en\/hanika\"> Read more&hellip;<\/a><\/p>\n","protected":false},"author":10,"featured_media":0,"parent":0,"menu_order":44,"comment_status":"closed","ping_status":"closed","template":"employee_template.php","meta":{"footnotes":""},"class_list":["post-137","page","type-page","status-publish","hentry"],"translation":{"provider":"WPGlobus","version":"3.0.2","language":"en","enabled_languages":["de","en"],"languages":{"de":{"title":true,"content":true,"excerpt":false},"en":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/www.kde.cs.uni-kassel.de\/en\/wp-json\/wp\/v2\/pages\/137","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kde.cs.uni-kassel.de\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.kde.cs.uni-kassel.de\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.kde.cs.uni-kassel.de\/en\/wp-json\/wp\/v2\/users\/10"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kde.cs.uni-kassel.de\/en\/wp-json\/wp\/v2\/comments?post=137"}],"version-history":[{"count":167,"href":"https:\/\/www.kde.cs.uni-kassel.de\/en\/wp-json\/wp\/v2\/pages\/137\/revisions"}],"predecessor-version":[{"id":10348,"href":"https:\/\/www.kde.cs.uni-kassel.de\/en\/wp-json\/wp\/v2\/pages\/137\/revisions\/10348"}],"wp:attachment":[{"href":"https:\/\/www.kde.cs.uni-kassel.de\/en\/wp-json\/wp\/v2\/media?parent=137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}