Dieter Hutter - Böcker

Rippling is a radically new technique for the automation of mathematical reasoning. It is widely applicable whenever a goal is to be proved from one or more syntactically similar givens. It was originally developed for inductive proofs, where the goal was the induction conclusion and the givens were the induction hypotheses. It has proved to be applicable to a much wider class of tasks, from summing series via analysis to general equational reasoning. The application to induction has especially important practical implications in the building of dependable IT systems, and provides solutions to issues such as the problem of combinatorial explosion. Rippling is the first of many new search control techniques based on formula annotation; some additional annotated reasoning techniques are also described here. This systematic and comprehensive introduction to rippling, and to the wider subject of automated inductive theorem proving, will be welcomed by researchers and graduate students alike.

The ongoing compression of computing facilities into small and mobile devices like handhelds, portables or even wearable computers will enhance ubiquitous information processing. The basic paradigm of such pervasive computing is the combination of strongly decentralized and distributed computing with the help of diversi?ed devices allowingforspontaneousconnectivityviatheInternet.Computerswillbecomeinvisible to the user, and exchangeof informationbetween devices will effectivelybe beyondthe user's control. Assuming a broad usage of more powerful tools and more effective ways to use them the quality of everydaylife will be strongly in?uenced by the dependabilityof the new technology. Information stored, processed, and transmitted by the various devices is one of the most critical resources. Threats exploiting vulnerabilities of new kinds of user interfaces, displays, operating systems, networks, and wireless communications will cause new risks of losing con?dentiality, integrity, and availability. Can these risks be reducedbycountermeasuresto an acceptablelevelor dowe haveto rede?nepolitical and social demands.The objective of this 1st International Conference on Security in Pervasive C- puting was to develop new security concepts for complex application scenarios based on systems like handhelds, phones, smartcards, and smart labels hand in hand with the emerging technology of ubiquitous and pervasive computing. Particular subjects were methodsand technologyconcerningthe identi?cationof risks, the de?nition of security policies, and the development of security measures that are related to the speci?c - pects of ubiquitous and pervasive computing like mobility, communication, and secure hardware/software platforms.

By presenting state-of-the-art results in logical reasoning and formal methods in the context of artificial intelligence and AI applications, this book commemorates the 60th birthday of Jörg H. Siekmann.The 30 revised reviewed papers are written by former and current students and colleagues of Jörg Siekmann; also included is an appraisal of the scientific career of Jörg Siekmann entitled "A Portrait of a Scientist: Logics, AI, and Politics." The papers are organized in four parts on logic and deduction, applications of logic, formal methods and security, and agents and planning.

This volume contains the papers presented at the 2nd International Conference on Se- rityinPervasiveComputing(SPC2005)heldApril6-8,2005inBoppard,Germany.The objective of this second conference was to develop new security concepts for complex application scenarios based on systems like handhelds, phones, smartcards, RFID-chips andsmartlabelshandinhandwiththeemergingtechnologyofubiquitousandpervasive computing. In particular the conference focused on methods and technologies conce- ing the identi?cation of risks, the de?nition of security policies, and the development of security and privacy measures, especially cryptographic protocols that are related to speci?c aspects of ubiquitous and pervasive computing like mobility, location-based services,adhocnetworking,resourceallocation/restriction,invisibility,andsecureha- ware/software platforms. We received 48 submissions. Each submission was reviewed by three independent reviewers and an electronic Program Committee meeting was held via the Internet. We are very grateful to the Program Committee members for their ef?ciency in processing the work and also for the quality of their reviews and discussions.Finally the Program Committee decided to accept 14 long papers and 3 short papers. Apart from the Program Committee, we would like to thank also the other persons who contributed to the success of this conference: the additional referees for revi- ing the papers, the authors for submitting the papers, and the local organizers, and in particular Hans-Peter Wagner, for the local organization of the conference in Boppard. SPC 2005 was hosted by the Bundesakademie fur .. of .. fentlicheVerwaltung of the Federal Ministry of the Interior, and was sponsored by the DFKI and BSI.