نتایج جستجو برای: bag filter
تعداد نتایج: 138177 فیلتر نتایج به سال:
This paper proposes a new multi-carrier system, called orthogonal code-based block transmission (OCBT). OCBT applies a time-spreading method with an orthogonal code to have a block signal structure and a windowing procedure to reduce the out-of-band (OOB) radiation. The proposed OCBT can transmit the quadrature amplitude modulation (QAM) signals to use the conventional multiple input multiple o...
In this work, a new approach to vocabulary reduction is presented. It is based on filtering words in the topic feature space instead of directly in the original word space. The main goal is to analyze the differences between the application of the Cumulative Count-based word filter (fcc) in word feature space (BoW: Bag of Words) with respect to its application in topic descriptions (obtained by...
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