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The structure of tail-biting trellises: Minimality and basic principles
IEEE Transactions on Information Theory, 2003Basic structural properties of tail-biting trellises are investigated. We start with rigorous definitions of various types of minimality for tail-biting trellises. We then show that biproper and/or nonmergeable tail-biting trellises are not necessarily minimal, even though every minimal tail-biting trellis is biproper.
Ralf Koetter, Alexander Vardy
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Turbo decoding with tail-biting trellises
1998 URSI International Symposium on Signals, Systems, and Electronics. Conference Proceedings (Cat. No.98EX167), 1998Tail-biting codes are considered as component codes for parallel concatenated block codes. Based on the two-dimensional weight distribution of tail-biting codes, we calculate the minimum distance of the parallel concatenated code and give guidelines on how to choose good tail-biting component codes.
C. Weiss +3 more
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An Investigation into Tail-Biting among Fattening Pigs
British Veterinary Journal, 1969SUMMARY Tail-biting and cannibalism are not identical conditions. Cannibalism may have many causes. It can also be a sequel to tail-biting. Tail-biting implies that a single pig grabs a tail transversely in its mouth. Groups of pigs never chase a single animal as is the habit in cannibalism. From many visits to piggeries and discussions with experts
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Algebraic Structure Theory of Tail-Biting Trellises
2007It is well known that there is an intimate connection between algebraic descriptions of linear block codes in the form of generator or parity-check matrices, and combinatorial descriptions in the form of trellises. A conventional trellis for a linear code C is a directed labelled layered graph with unique start and final nodes, and all paths from the ...
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Evaluation of tail biting in pigs at the abattoir
2022Tail biting has been recognised as an emerging problem in pig production. In Europe, tail docking is regularly performed on conventional swine farms to decrease the prevalence of tail damage. However, this procedure should be applied only as last resource, being imperative to consider its negative impact on animal welfare.
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Involving stakeholders in tail biting prevention: stakeholder opinion on a German tail biting tool
2014D. Madey +4 more
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