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fabi_low.jpg Email: fabian.hadiji cs.tu-dortmund.de
Phone: 0231/755-8255
Room-No.: OH14 R335

Projects

Publications

Hadiji, Fabian. . With increasing complexity and growing problem sizes in AI and Machine Learning, inference and learning are still major issues in Probabilistic Graphical Models (PGMs). On the other hand, many problems are specified in such a way that symmetries arise from the underlying model structure. Exploiting these symmetries during inference, which is referred to as "lifted inference", has lead to significant efficiency gains. This thesis provides several enhanced versions of known algorithms that show to be liftable too and thereby applies lifting in "non-standard" settings. By doing so, the understanding of the applicability of lifted inference and lifting in general is extended. Among various other experiments, it is shown how lifted inference in combination with an innovative Web-based data harvesting pipeline is used to label author-paper-pairs with geographic information in online bibliographies. This results is a large-scale transnational bibliography containing affiliation information over time for roughly one million authors. Analyzing this dataset reveals the importance of understanding count data. Although counting is done literally everywhere, mainstream PGMs have widely been neglecting count data. In the case where the ranges of the random variables are defined over the natural numbers, crude approximations to the true distribution are often made by discretization or a Gaussian assumption. To handle count data, Poisson Dependency Networks (PDNs) are introduced which presents a new class of non-standard PGMs naturally handling count data., TU Dortmund, 2015.
Dehbi, Youness and Hadiji, Fabian and Gröger, Gerhard and Kersting, Kristian and Plümer, Lutz. . In http://onlinelibrary.wiley.com/doi/10.1111/tgis.12200/abstract (editors), Transactions in GIS, Vol. 21, No. 1, pages 134-150, 2017.
Hadiji, Fabian and Molina, Alejandro and Natarajan, Sriraam and Kersting, Kristian. . In http://dx.doi.org/10.1007/s10994-015-5506-z (editors), Machine Learning Journal (MLJ), Vol. 100, No. 2, pages 477-507, 2015.
11th AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment (AIIDE) Sifa, Rafet and Hadiji, Fabian and Rune, Julian and Drachen, Anders and Kersting, Kristian and Bauckhage, Christian. . In http://www.aaai.org/ocs/index.php/AIIDE/AIIDE15/paper/view/11544/11359 (editors), 11th AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment (AIIDE), AAAI Press, 2015.
IEEE 82nd Vehicular Technology Conference (VTC-Fall) Ide, Christoph and Hadiji, Fabian and Habel, Lars and Molina, Alejandro and Zaksek, Thomas and Schreckenberg, Michael and Kersting, Kristian. and Wietfeld, Christian. . In http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=7391019&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D7391019 (editors), IEEE 82nd Vehicular Technology Conference (VTC-Fall), Boston, USA, 2015.
Proceedings of the 24th International Joint Conference on Artificial Intelligence (IJCAI) Hadiji, Fabian and Mladenov, Martin and Bauckhage, Christian and Kersting, Kristian. . In http://ijcai.org/papers15/Papers/IJCAI15-031.pdf (editors), Proceedings of the 24th International Joint Conference on Artificial Intelligence (IJCAI), 2015.
Proceedings of the 31th Conference on Uncertainty in Artificial Intelligence (UAI) Bauckhage, Christian and Kersting, Kristian and Hadiji, Fabian. . In http://auai.org/uai2015/proceedings/papers/62.pdf (editors), Proceedings of the 31th Conference on Uncertainty in Artificial Intelligence (UAI), AUAI, 2015.
Proceedings of the 9th International AAAI Conference on Web and Social Media (ICWSM) Bauckhage, Christian and Kersting, Kristian and Hadiji, Fabian. . In http://www.aaai.org/ocs/index.php/ICWSM/ICWSM15/paper/viewFile/10505/10485 (editors), Proceedings of the 9th International AAAI Conference on Web and Social Media (ICWSM), 2015.
Proceedings of the IEEE Conference on Computational Intelligence and Games (CIG) Hadiji, Fabian and Sifa, Rafet and Drachen, Anders and Thurau, Christian and Kersting, Kristian and Bauckhage, Christian. . In Proceedings of the IEEE Conference on Computational Intelligence and Games (CIG), IEEE, 2014.
Proceedings of the 7th International AAAI Conference on Weblogs and Social Media (ICWSM-2013) C. Bauckhage and K. Kersting and F. Hadiji. . In http://www-kd.iai.uni-bonn.de/pubattachments/683/bauckhage13icwsm.pdf (editors), Proceedings of the 7th International AAAI Conference on Weblogs and Social Media (ICWSM-2013), 2013.
Proceedings of the Twenty-Seventh AAAI Conference on Artificial Intelligence (AAAI-13) F. Hadiji and K. Kersting. . In http://www-kd.iai.uni-bonn.de/pubattachments/692/hadiji13aaai.pdf (editors), Proceedings of the Twenty-Seventh AAAI Conference on Artificial Intelligence (AAAI-13), 2013.
Twenty-Fourth AAAI Conference on Artificial Intelligence (AAAI-10) Kersting, Kristian and El Massaoudi, Youssef and Ahmadi, Babak and Hadiji, Fabian. . In http://www-kd.iai.uni-bonn.de/pubattachments/456/kersting10aaai.pdf (editors), Twenty-Fourth AAAI Conference on Artificial Intelligence (AAAI-10), Atlanta, USA, 2010.