Andreas A. Falkner

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State of the art recommender systems support users in the selection of items from a predefined assortment (e.g., movies , books, and songs). In contrast to an explicit definition of each individual item, configurable products such as computers , financial service portfolios, and cars are represented in the form of a configuration knowledge base that(More)
The Partner Units Problem (PUP) constitutes a challenging real-world configuration problem with diverse application domains such as railway safety, security monitoring, electrical engineering, or distributed systems. Although using the latest problem-solving methods including Constraint Programming, SAT Solving, Integer Programming, and Answer Set(More)
BACKGROUND In previous studies, alemtuzumab demonstrated considerable activity in patients with previously treated B-cell chronic lymphocytic leukemia (CLL), including fludarabine-refractory disease. In this retrospective study, the authors evaluated the benefit of alemtuzumab monotherapy in unselected patients with advanced, previously treated CLL who(More)
Preface Configuration problems are among the most fruitful domains for applying and developing advanced artificial intelligence (AI) techniques. Powerful knowledge-representation formalisms are required to capture the great variety and complexity of configuration problems. Efficient reasoning is required to provide intelligent interactive behavior in(More)
Reconfiguration is an important activity for companies selling configurable products or services which have a long life time. However, identification of a set of required changes in a legacy configuration is a hard problem, since even small changes in the requirements might imply significant modifications. In this paper we show a solution based on answer(More)
Reconfiguration is an important activity for companies selling configurable products or services which have a long life time. However, identification of a set of required changes in a legacy configuration is a hard problem, since even small changes in the requirements might imply significant modifications. In this paper we show a solution based on answer(More)
Software solutions in complex environments, such as railway control systems or power plants, are assemblies of heterogeneous components, which are very large and complex systems themselves. Interplay of these systems requires a thorough design of a system-of-systems (SoS) encompassing the required interactions between the involved systems. One of the(More)
Existing feature modeling approaches and tools are based on classical constraint satisfaction which consists of a fixed set of variables and a fixed set of constraints on these variables. In many applications however, features may not only be selected but cloned so that the numbers of involved variables and constraints are not known from the beginning. We(More)