Search for dissertations about: "alphabet"

Showing result 16 - 20 of 47 swedish dissertations containing the word alphabet.

  2. 16. Regular model checking

    Author : Marcus Nilsson; Bengt Jonsson; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Computer Systems; Datorteknik;

    Abstract : We present regular model checking, a framework for algorithmic verification of infinite-state systems with, e.g., queues, stacks, integers, or a parameterized linear topology. States are represented by strings over a finite alphabet and the transition relation by a regular length-preserving relation on strings. READ MORE

  4. 17. Some concatenated and iterative decoding approaches for continuous phase modulation

    Author : Ming Xiao; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; serially concatenated codes; Continuous phase modulation;

    Abstract : Several concatenated and iterative decoding approaches are used toimprove the power efficiency of continuous phase modulation (CPM).First a symbol interleaver is used for serially concatenated CPM(SCCPM). Convergence of iterative decoding for this scheme can beearlier (lower SNR: Signal-to-Noise-Ratio) compared to bitinterleaved SCCPM. READ MORE

  5. 18. Error-Correcting Codes Based on Chaotic Dynamical Systems

    Author : Håkan Andersson; Thomas Mittelholzer; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : This dissertation treats a novel class of error-correcting codes based on chaotic dynamical systems. The codes are defined over a continuous alphabet whereas the information that is to be transmitted belongs to a discrete set of symbols. Simple expressions can be given for the encoders, and the codewords can be described by a parity-check relation. READ MORE

  6. 19. Spectral Methods for Self-Assembly

    Author : Erik Edlund; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; classical spin models; patterns; isotropic interactions; colloids; Self-assembly;

    Abstract : Conventional manufacturing relies on robotics and chemistry to create, shape and combine components into products. Nature shows us an alternative route: by carefully designing interactions between components, they can be made to spontaneously self-assemble into complex arrangements. READ MORE

  7. 20. Multifont recognition System for Ethiopic Script

    Author : Yaregal Assabie Lake; Josef Bigun; Högskolan i Halmstad; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ethiopic character recognition; OCR; Multifont recognition; Amharic; Direction fields; Structural and syntactic pattern recognition; Image analysis; Bildanalys;

    Abstract : In this thesis, we present a general framework for multi-font, multi-size and multi-style Ethiopic character recognition system. We propose structural and syntactic techniques for recognition of Ethiopic characters where the graphically comnplex characters are represented by less complex primitive structures and their spatial interrelationships. READ MORE