PhD ceremony: Mr. A.W. Witoelar, 11.00 uur, Academiegebouw, Broerstraat 5, Groningen
Thesis: Statistical physics of learning vector quantization
Promotor(s): prof. M. Biehl, prof. N. Petkov
Faculty: Mathematics and Natural Sciences
The field of machine learning concerns the design of algorithms to learn and recognize complex patterns from data. Learning Vector Quantization (LVQ) constitutes an important family of such algorithms using prototypes which serve as typical examples. Despite its wide range of applications, the theoretical understanding of LVQ in general remains very limited. In this thesis a theoretical framework is constructed using concepts from statistical physics which allows for an exact analysis of the typical learning behaviors of the system. Studies in this thesis compare the characteristics of various LVQ algorithms to demonstrate the robustness of Neural Gas (NG) schemes and the specific advantages of LVQ 2.1 and Robust Soft LVQ algorithms. Furthermore surprising non-trivial behaviors are revealed including learning plateaus and phase transitions in the training process. The results provide insights to general prototype-based learning prescriptions.
Different from previous years but still surprising, fun, healthy, and for the whole family: join Groningen’s take on this year’s national weekend of science, organized by the University of Groningen (UG) and Hanze University of Applied Sciences...
Spiders. Admittedly, they’re not the most cuddly of creatures, but biologist Martine Maan hopes that plenty of people will be willing to help her with her research into them by taking part in a CurioUs measuring survey. There is definitely a...
Prof. Sijbren Otto of the Stratingh Institute for Chemistry has been awarded the James Flack Norris Award in Physical Organic Chemistry of the American Chemical Society. He receives the award for his leading contribution to establishing the field...
The UG website uses functional and anonymous analytics cookies. Please answer the question of whether or not you want to accept other cookies (such as tracking cookies).
If no choice is made, only basic cookies will be stored. More information