منابع مشابه
Sparse category labels obstruct generalization of category membership
Studies of human category learning typically focus on situations where explicit category labels accompany each example (supervised learning) or on situations were people must infer category structure entirely from the distribution of unlabeled examples (unsupervised learning). However, real-world category learning likely involves a mixture of both types of learning (semi-supervised learning). S...
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We examine two approaches for evaluating category membership within an information taxonomy: card sorting and a simple statistical approach based on the word frequencies of content items. To assess these two approaches, we developed a category structure for a web site based on card sorting. Metrics from the card sorting were obtained to predict problematic tasks. Potentially problematic tasks w...
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This study investigated how the information about category membership influences the prediction of properties of category members. Results revealed that participants’ response patterns became homogeneous and polarized when arbitrary noun labels carried category membership information. We suggest that this tendency arises because category membership information is represented like an abstract ru...
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The existence of such a function is independent from ZFC. Recall that for an ideal I, we define non(I) = min{|X| : X 6∈ I}. The following fact shows that it is consistent that an Erdös – Sierpiński mapping does not exist: Theorem 1.3 (see [1]). It is consistent that non(M) 6= non(N ). An Erdös–Sierpiński mapping is an isomorphism of the structures 〈R,N〉 and 〈R,M〉 and thus preserves basic set-th...
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A classic experiment by Milgram shows that individuals can route messages along short paths in social networks, given only simple categorical information about recipients (such as “he is a prominent lawyer in Boston” or “she is a Freshman sociology major at Harvard”). That is, these networks have very short paths between pairs of nodes (the so-called small-world phenomenon); moreover, participa...
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ژورنال
عنوان ژورنال: ASA News
سال: 1981
ISSN: 0278-2219,1942-4949
DOI: 10.1017/s0002021400040585