Starting from the conventional electron-hole Hamiltonian Heh, we derive an effective Hamiltonian H̃1s for 1s excitons with spin degrees of freedom. The Hamiltonian describes optical processes close to the exciton resonance for the case of weak excitation. We show that straightforward bosonization of Heh does not give the correct form of H̃1s, which we obtain by a projection onto the subspace span...

Analogies and Positive Transfer in Artificial Grammar Learning Abstract Following Brooks and Vokey (1991), we showFollowing Brooks and Vokey (1991), we show that positive transfer to new items generated from an artificial grammar in which the vocabulary has been changed from training to test can be based on “abstract analogy” to specific training items (specific similarity) rather than abstract...

Analogies and Positive Transfer in Artificial Grammar Learning Abstract Following Brooks and Vokey (1991), we showFollowing Brooks and Vokey (1991), we show that positive transfer to new items generated from an artificial grammar in which the vocabulary has been changed from training to test can be based on “abstract analogy” to specific training items (specific similarity) rather than abstract...

This report documents the programme and the outcomes of Dagstuhl Seminar 17051 “Theory and Applications of Behavioural Types”. Behavioural types describe the dynamic aspects of programs, in contrast to data types, which describe the fixed structure of data. Perhaps the most well-known form of behavioural types is session types, which are type-theoretic specifications of communication protocols....

In order to investigate the applicability of techniques to assess the costs and benefits of medical technology, 19 case studies were prepared. All 19 are available individually. In addition, 17 of the cases are available in a collected volume, Background Paper #2: Case Studies of Medical Technologies. Some of the cases represent formal cost-effectiveness analysis (e.g., the case on bone marrow ...

The current issue is devoted to statistical estimations in complex problems. Several novel methods of solving different applied problems are discussed, and some unique approaches of statistical analysis are introduced. Eight theoretical and applied papers devoted both to modern statistical estimations in multi-person multi-criteria decisions and other complex problems, statistical methods and t...

Texts that convey the same or close meaning can be written in many different ways. Because of this, computer programs are not good at recognizing meaning similarity between short texts. Toward solving this problem, researchers have been investigating methods for automatically acquiring paraphrase templates (paraphrase extraction) from a corpus. State-of-the-art approaches in paraphrase extracti...