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Wysłany: Pią 3:03, 29 Kwi 2011 Temat postu: Coach Sunglasses On Sale6High-order Co-occurrence |
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ent Semantic Analysis itself is not co-occurrence. Typically, more than 95% of
word-pairs with large similarity will never emerge attach in a given paragraph. If these words were to cooccur in the same document [link widoczny dla zalogowanych], their cosine approximation is not high. But with namely said, If words never co-occur, their cosine can still be tall.
Latent Semantic Analysis neglects the word mandate. This is different problem. The solution? There is a " Syntagmatic Paradigmatic Model" which is a memories based machinery that incorporates the word array, but it does maintain the distributional approximate. It residences the problem of word array and polysemy. It is well understood that LSA not necessarily accounts terms with another meanings in differ contexts or keyword sequences. The another senses and meanings of a word are not predetermined in anyone kind of cerebral dictionary, but because of the generative dictionary [link widoczny dla zalogowanych], they emerge in the context.
Vectors in Latent Semantic Analysis are context-free [link widoczny dla zalogowanych], yet not the meaning. It namely context-dependent. This is a problem. The solution? By combining Latent Semantic Analysis with the Construction-Integration (CI) Model of realization, word meanings tin be made context acute.
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