Results 21 to 30 of about 54,050 (267)
Changes in epigeic spider community in primary succession on a brown-coal dump
A descriptive model of primary succession of spiders on a brown-coal dump is presented. Multivariate methods (cluster analysis and detrended correspondence analysis), and community indexes were applied to evaluate changes in community composition of ...
Pekár, Stanislav
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Habitats of pre-hibernating gregarious larvae of the endangered Marsh Fritillary butterfly (Euphydryas aurinia) were studied in field in Western Bohemia, Czech Republic.
Martin KONVICKA +2 more
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Detecting Ordinal Subcascades [PDF]
AbstractOrdinal classifier cascades are constrained by a hypothesised order of the semantic class labels of a dataset. This order determines the overall structure of the decision regions in feature space. Assuming the correct order on these class labels will allow a high generalisation performance, while an incorrect one will lead to diminished results.
Ludwig Lausser +4 more
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ALL ordinals are cop-robber ordinals
The game of cops and robbers, played on a fixed graph $G$, is a two-player game, where the cop and the robber (the players) take turns in moving to adjacent vertices. The game finishes if the cop lands on the robber's vertex. In that case we say that the cop wins. If the cop can always win, regardless of the starting positions, we say that $G$ is a cop-
Jorge Cruz Chapital +2 more
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To appear in a Special Issue on New Worlds of Computation 2011 of the International Journal of Unconventional Computing.
Finkel, Olivier, Todorcevic, Stevo
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An ordinal minimax theorem [PDF]
In the early 1950s Lloyd Shapley proposed an ordinal and set-valued solution concept for zero-sum games called \emph{weak saddle}. We show that all weak saddles of a given zero-sum game are interchangeable and equivalent. As a consequence, every such game possesses a unique set-based value.
Felix Brandt 0001 +2 more
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The new method for evaluation of tree populations presented here is based on a correlation analysis within a set of dendrometric variables. The correlation analysis is carried out for each population separately.
Karel MATĚJKA
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State and development of phytocenoses on research plots in the Krkonoše Mts. forest stands
The paper assesses the state and development of phytocenoses in beech, mixed and spruce stands on permanent research plots (PRP) 1-32 in the Krkonoše (Giant) Mts. in the years 1980-2005, i.e. during the air-pollution calamity and afterwards.
S. Vacek, K. Matějka
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The study was conducted in the landscapes of south-eastern Ukraine during the nesting seasons 1988–2018. Within the landscape system associated with the Molochny Estuary, the ten most important ecosystem types were investigated, including the following ...
Koshelev Olexander +3 more
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© 2015 by Taylor & Francis Group, LLC. In this chapter, a novel application-independent performance metric for ordinal, probabilistic-ordinal, and partial-ordinal classification problems is introduced. Conventional performance metrics for ordinal classification problems, such as mean absolute error of consecutive integer labels and ranked probability ...
Bahari, Mohamad Hasan, Van hamme, Hugo
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