Báo cáo toán học: " Parameter estimation for SAR micromotion target based on sparse signal representation" pot

... new method for parameter estimation of multicomponent LFM signal based on sparse signal representation, in Proceedings of IEEE International Conference on Information and Automation, Zhangjiajie, ... signatures for target recognition. However, it’s a huge challenge for micromotion parameter estimation in SAR, since (1) micromotion- target signals are hard to...

Ngày tải lên: 20/06/2014, 20:20

... hierarchical tree is constructed in a top- bottom manner. Two constraints are used in the tree construction process: (1) For two words related by a subsumption relation, the one which appears ... Center”. 3 Summarization based on Word Hierarchical Representation 3.1 Word Significance Estimation In order to include the most significant concepts into the summary, before using...

Ngày tải lên: 31/03/2014, 00:20

... operations such as composition, minimization, union, concatenation, and closure, as this yields tricky parameter tying. We formulate a “parameterized FST” paradigm and give training algorithms for ... loops, run only one it- eration at each M step, giving a GEM algorithm (Riezler, 1999). Alternatively, discard EM and use gradient -based optimization. 13 For per-state conditional normal...

Ngày tải lên: 20/02/2014, 21:20

... be 7 closed form expressions for the optimal time allo- cation. We also obtained a closed form expression for the optimal rate allocation that is valid for spe- cific channel conditions that guarantee ... which contains the first m elements of c [25, Chapter 3.1]. The condition in (46) is for the last N elements equiva- lent to the left hand side in Condition (17) and the condition in (...

Ngày tải lên: 20/06/2014, 20:20

... presented for mobile Internet connections. Fig. 1 illustrates the set of impaired video sequences selected for the aims of this paper and the results from the quality evaluations. For each considered ... evaluations. User experimentation for mobile context of use This paper illustrates a series of experiments aimed at analyzing the QoE for different media-enriched web- based servic...

Ngày tải lên: 20/06/2014, 21:20

... cases. 7 This Provisional PDF corresponds to the article as it appeared upon acceptance. Fully formatted PDF and full text (HTML) versions will be made available soon. Sharp bounds for Seiffert mean ... of Inequalities and Applications go to http://www.journalofinequalitiesandapplications.com/authors/instructions/ For information about other SpringerOpen publications go to http://www.spri...

Ngày tải lên: 20/06/2014, 21:20

... expression. Given a context with a target expression, the related con- text set can be constructed as follows: 1. Remove the target expression from the con- text; 2. Extract the longest lexical chains ... мед (honey), лекарство (medicine). For every expression, the typical context set con- sists of the first 10 articles retrieved by searching Google for the expression. In order to cons...

Ngày tải lên: 07/03/2014, 22:20

... Kim, J Lee, Y Kwon, S Par, Content -based image retrieval method using color and shape features, in Proceedings of the 1997 International Conference on Information, Communication and Signal Processing, ... correlation r (= l) can be calculated. 3 Kernel fun ction construction Construction of new kernel functions is described in this section. The proposed method constructs tw o types of k...

Ngày tải lên: 20/06/2014, 21:20

... possibly strong topical in- formation contained in those words. Secondly, er- rors generated during Chinese segmentation could affect the distributions of words. For example, a gested that for the ... in Concept Space. A context vector is the sum of the vectors of concepts that occur in a context win- dow. If many of the concepts in a window have a strong component for one of the topics...

Ngày tải lên: 08/03/2014, 04:22