منابع مشابه
Abstract category learning
Category Learning Atsushi Hashimoto and Haruo Hosoya Department of Computer Science The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo, Japan Abstract. Motivated by a neurophysiological experiment on prefrontal cortex, we study a scheme for learning abstract categories. An abstract category represents a set of vectors that are identical to each other modulo substitution, e.g., ’ABAB’, ’BABA’...
متن کاملEffective Category and Measure in Abstract Complexity Theory (Extended Abstract)
Strong variants of the Operator Speed-up Theorem, Operator Gap Theorem and Compression Theorem are obtained using an effective version of Baire Category Theorem. It is also shown that all complexity classes of recursive predicates have effective measure zero in the space of recursive predicates and, on the other hand, the class of predicates with almost everywhere complexity above an arbitrary ...
متن کاملThe sectional category of spherical fibrations
We give homological conditions which determine sectional category, secat, for rational spherical fibrations. In the odd dimensional case the secat is the least power of the Euler class which is trivial. In the even dimensional case secat is one when a certain homology class in twice the dimension of the sphere is −1 times a square. Otherwise secat is two. We apply our results to construct a fib...
متن کاملThe emergence of an abstract grammatical category 1 The emergence of an abstract grammatical category in children’s early speech
How do children begin to use language to say things they have never heard before? The origins of linguistic productivity have been a subject of heated debate: While generativist accounts posit that childrens early language reflects the presence of syntactic abstractions, constructivist approaches instead emphasize gradual generalization over frequently-heard forms. Here we develop a Bayesian st...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Bulletin of the Belgian Mathematical Society - Simon Stevin
سال: 2012
ISSN: 1370-1444
DOI: 10.36045/bbms/1347642378