Papers by Zoltan Csornyei
AGRÁR- ÉS VIDÉKFEJLESZTÉSI EGYÜTTMŰKÖDÉSEK MAGYARORSZÁGON = Cooperation in agriculture and rural development in Hungary
Agrárgazdasági Könyvek sorozat, 2015
Periodica Polytechnica Electrical Engineering, 2007
A low-level data structure always has a predefined representation which does not fit into an obje... more A low-level data structure always has a predefined representation which does not fit into an object of traditional objectoriented languages, where explicit type tag denotes its dynamic type. This is the main reason why the advanced features of object-oriented programming cannot be fully used at the lowest level. On the other hand, the hierarchy of low-level data structures is very similar to class-trees, but instead of an explicit tag-field the value of the object determines its dynamic type. Another peculiar requirement in system programming is that some classes have to be polymorphic by-value with their ancestor: objects must fit into the space of a superclass instance. In our paper we show language constructs which enable the system programmer to handle all data structures as objects, and exploit the advantages of object-oriented programming even at the lowest level. Our solution is based on Predicate Dispatching, but adopted to the special needs of system programming. The techniques we show also allow for some classes to be polymorphic by-value with their super. We also describe how to implement these features without losing modularity.
Use Cases for Refactoring in Erlang
Lecture Notes in Computer Science, 2008
The concept refactoring refers to program transformations that preserve the meaning of programs... more The concept refactoring refers to program transformations that preserve the meaning of programs. Such transformations are often applied during software de-velopment in order to raise the quality of the code or to make the code suitable for further changes and ...
Livestock Science, 2007
The effects of litter and dam inbreeding on the number of piglets born alive (NBA) and on the ges... more The effects of litter and dam inbreeding on the number of piglets born alive (NBA) and on the gestation length (GL) were analyzed for 39,798 Hungarian Landrace (141,397 records) and 70,356 Hungarian Large White (246,961 records) sows. Bivariate repeatability animal models were used, applying a Bayesian approach. Differences in pedigree completeness (complete generation equivalents) were accounted for. Litter and dam inbreeding effects (per 10% inbreeding) on the NBA resulted in negative regression coefficients for Hungarian Landrace (−0.162 to −0.047 and −0.203 to −0.042) and Hungarian Large White (−0.231 to −0.100 and −0.282 to −0.111) populations. The litter inbreeding increased the GL for Hungarian Landrace and Hungarian Large White populations, but the magnitude of the effect was less then 0.01 days per 10% inbreeding. The effects of dam inbreeding on GL were negligible.
Italian Journal of Animal Science, 2010
Genetic parameters of number of piglets born alive (NBA) and gestation length (GL) were analyzed ... more Genetic parameters of number of piglets born alive (NBA) and gestation length (GL) were analyzed for 39798 Hungarian Landrace (HLA, 141397 records) and 70356 Hungarian Large White (HLW, 246961 records) sows. Bivariate repeatability animal models were used, applying a Bayesian statistics. Estimated and heritabilitie repeatabilities (within brackets), were low for NBA, 0.07 (0.14) for HLA and 0.08 (0.17) for HLW, but somewhat higher for GL, 0.18 (0.27) for HLA and 0.26 (0.35) for HLW. Estimated genetic correlations between NBA and GL were low,-0.08 for HLA and-0.05 for HLW.
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Papers by Zoltan Csornyei