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This article proposes a classification of speech functions of variable tag questions in British English conversations. Based on intonational, conversational and formal criteria the analysis shows that tag questions can not only function as questions and statements, but also as responses, commands and offers. A large group of tag questions cannot be captured by any of the traditional speech functions and are classified instead as Statement-Question blends. The article investigates the impact of the LLC and COLT corpora, and features such as gender, age and social roles, on the distribution of t

Mathematical linguistics --- Grammar --- English language --- Pragmatics --- Lexicology. Semantics --- 519.76 --- 801.56 --- Semiotics. Mathematical theory of systems of symbols. Mathematical linguistics --- Syntaxis. Semantiek --- Conferences - Meetings --- Engels. --- Grammaticale figuren. --- Corpuslinguïstiek. --- 801.56 Syntaxis. Semantiek --- 519.76 Semiotics. Mathematical theory of systems of symbols. Mathematical linguistics --- Computational linguistics --- Data processing --- Research --- Discourse analysis --- Germanic languages

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Programming --- cryptografie --- computerbeveiliging --- Computer architecture. Operating systems --- 519.72 --- 091.14:003.26 --- 519.76 --- 681.3 --- Computerbeveiligingssystemen --- Cryptography (Cryptografie, Netwerkbeveiliging) --- databeveiliging (informatiebeveiliging) --- elektronisch geld --- internet --- Information theory: mathematical aspects --- Codices--Geheimschrift, cryptografie --- Semiotics. Mathematical theory of systems of symbols. Mathematical linguistics --- 519.76 Semiotics. Mathematical theory of systems of symbols. Mathematical linguistics --- 091.14:003.26 Codices--Geheimschrift, cryptografie --- 519.72 Information theory: mathematical aspects

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Cryptography is a key technology in electronic key systems. It is used to keep data secret, digitally sign documents, access control, etc. Therefore, users should not only know how its techniques work, but they must also be able to estimate their efficiency and security. For this new edition, the author has updated the discussion of the security of encryption and signature schemes and recent advances in factoring and computing discrete logarithms. He has also added descriptions of time-memory trade of attacks and algebraic attacks on block ciphers, the Advanced Encryption Standard, the Secure Hash Algorithm, secret sharing schemes, and undeniable and blind signatures. Johannes A. Buchmann is a Professor of Computer Science and Mathematics at the Technical University of Darmstadt, and the Associate Editor of the Journal of Cryptology. In 1985, he received the Feodor Lynen Fellowship of the Alexander von Humboldt Foundation. Furthermore, he has received the most prestigious award in science in Germany, the Leibniz Award of the German Science Foundation. About the first edition: It is amazing how much Buchmann is able to do in under 300 pages: self-contained explanations of the relevant mathematics (with proofs); a systematic introduction to symmetric cryptosystems, including a detailed description and discussion of DES; a good treatment of primality testing, integer factorization, and algorithms for discrete logarithms; clearly written sections describing most of the major types of cryptosystems....This book is an excellent reference, and I believe it would also be a good textbook for a course for mathematics or computer science majors..." -Neal Koblitz, The American Mathematical Monthly.

Coding theory --- Cryptography --- Codage --- Cryptographie --- 519.76 --- 519.711 --- 519.72 --- Cryptanalysis --- Cryptology --- Secret writing --- Steganography --- Signs and symbols --- Symbolism --- Writing --- Ciphers --- Data encryption (Computer science) --- Data compression (Telecommunication) --- Digital electronics --- Information theory --- Machine theory --- Signal theory (Telecommunication) --- Computer programming --- Semiotics. Mathematical theory of systems of symbols. Mathematical linguistics --- General questions of control theory. Models. Modelling. Coding. Theory of nets --- Information theory: mathematical aspects --- 519.72 Information theory: mathematical aspects --- 519.711 General questions of control theory. Models. Modelling. Coding. Theory of nets --- 519.76 Semiotics. Mathematical theory of systems of symbols. Mathematical linguistics --- Cryptography. --- Number theory. --- Data structures (Computer science). --- Number Theory. --- Data Structures and Information Theory. --- Information structures (Computer science) --- Structures, Data (Computer science) --- Structures, Information (Computer science) --- Electronic data processing --- File organization (Computer science) --- Abstract data types (Computer science) --- Number study --- Numbers, Theory of --- Algebra