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- European Organization for Nuclear ResearchCH54 papers
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- National and Kapodistrian University of AthensGR49 papers
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7 papers · 1 filter
Linear response function around a localized impurity in a superconductor
G. G. N. Angilella, F. E. Leys, N. H. March +1
Imaging the effects of an impurity like Zn in high-Tc superconductors [Nature 61 (2000) 746] has rekindled interest in defect problems in the superconducting phase. This has prompt…
Differentiable functions of quaternion variables
S. V. Ludkovsky, F. van Oystaeyen
We investigate differentiability of functions defined on regions of the real quaternion field and obtain a noncommutative version of the Cauchy-Riemann conditions. Then we study th…
Introduction to the CoNLL-2002 Shared Task: Language-Independent Named Entity Recognition
Erik F. Tjong Kim Sang
We describe the CoNLL-2002 shared task: language-independent named entity recognition. We give background information on the data sets and the evaluation method, present a general…
Continuity of a class of entropies and relative entropies
Jan Naudts
The present paper studies continuity of generalized entropy functions and relative entropies defined using the notion of a deformed logarithmic function. In particular, two distinc…
Isolated singularities, smooth orders and Auslander regularity
Raf Bocklandt, Lieven Le Bruyn, Stijn Symens
In this note we prove that a smooth order satisfying the reverse geometric engineering of singularities conditions in stringtheory (in any compactifying dimension) is Auslander reg…
Mining All Non-Derivable Frequent Itemsets
Toon Calders, Bart Goethals
Recent studies on frequent itemset mining algorithms resulted in significant performance improvements. However, if the minimal support threshold is set too low, or the data is high…