Objective For many optimization problems that arise in logistics, information retrieval, and other contexts the classical theory of algorithms has lost its grip on reality because it is based on a pessimistic worst-case perspective, in which the performance of an algorithm is solely measured by its behavior on the worst possible input. This does not take into consideration that worst-case inputs are often rather contrived and occur only rarely in practical applications. It led to the situation that for many problems the classical theory is not able to differentiate meaningfully between different algorithms. Even worse, for some important problems it recommends algorithms that perform badly in practice over algorithms that work well in practice only because the artificial worst-case performance of the latter ones is bad.We will study classic optimization problems (traveling salesperson problem, linear programming, etc.) as well as problems coming from machine learning and information retrieval. All these problems have in common that the practically most successful algorithms have a devastating worst-case performance even though they clearly outperform the theoretically best algorithms.Only in recent years a paradigm shift towards a more realistic and robust algorithmic theory has been initiated. This project will play a major role in this paradigm shift by developing and exploring novel theoretical approaches (e.g. smoothed analysis) to reconcile theory and practice. A more realistic theory will have a profound impact on the design and analysis of algorithms in the future, and the insights gained in this project will lead to algorithmic tools for large-scale optimization problems that improve on existing ad hoc methods. We will not only work theoretically but also test the applicability of our theoretical considerations in experimental studies. Fields of science natural sciencescomputer and information sciencesartificial intelligencemachine learning Programme(s) FP7-IDEAS-ERC - Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013) Topic(s) ERC-SG-PE6 - ERC Starting Grant - Computer science and informatics Call for proposal ERC-2012-StG_20111012 See other projects for this call Funding Scheme ERC-SG - ERC Starting Grant Coordinator RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN Address Regina pacis weg 3 53113 Bonn Germany See on map Region Nordrhein-Westfalen Köln Bonn, Kreisfreie Stadt Activity type Higher or Secondary Education Establishments Principal investigator Heiko Roglin (Prof.) Administrative Contact Daniela Hasenpusch (Ms.) Links Contact the organisation Opens in new window Website Opens in new window EU contribution No data Beneficiaries (1) Sort alphabetically Sort by EU Contribution Expand all Collapse all RHEINISCHE FRIEDRICH-WILHELMS-UNIVERSITAT BONN Germany EU contribution € 1 235 820,00 Address Regina pacis weg 3 53113 Bonn See on map Region Nordrhein-Westfalen Köln Bonn, Kreisfreie Stadt Activity type Higher or Secondary Education Establishments Principal investigator Heiko Roglin (Prof.) Administrative Contact Daniela Hasenpusch (Ms.) Links Contact the organisation Opens in new window Website Opens in new window Other funding No data
