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<bibitem type="J">   <ARLID>0321670</ARLID> <utime>20240111140715.9</utime><mtime>20090325235959.9</mtime>   <WOS>000263431900006</WOS>  <DOI>10.1109/TSP.2008.2009271</DOI>           <title language="eng" primary="1">Fast Approximate Joint Diagonalization Incorporating Weight Matrices</title>  <specification> <page_count>14 s.</page_count> <media_type>www</media_type> </specification>   <serial><ARLID>cav_un_epca*0256727</ARLID><ISSN>1053-587X</ISSN><title>IEEE Transactions on Signal Processing</title><part_num/><part_title/><volume_id>57</volume_id><volume>3 (2009)</volume><page_num>878-891</page_num></serial>   <title language="cze" primary="0">Rychlá přibližná diagonalizace s váhovými maticemi</title>    <keyword>autoregressive processes</keyword>   <keyword>blind source separation</keyword>   <keyword>nonstationary random processes</keyword>    <author primary="1"> <ARLID>cav_un_auth*0101212</ARLID> <name1>Tichavský</name1> <name2>Petr</name2> <institution>UTIA-B</institution> <full_dept>Department of Stochastic Informatics</full_dept>  <fullinstit>Ústav teorie informace a automatizace AV ČR, v. v. i.</fullinstit> </author> <author primary="0"> <ARLID>cav_un_auth*0213973</ARLID> <name1>Yeredor</name1> <name2>A.</name2> <country>IL</country>  </author>   <source> <source_type>pdf</source_type> <url>http://library.utia.cas.cz/separaty/2009/SI/tichavsky-fast approximate joint diagonalization incorporating weight matrices.pdf</url> </source>        <cas_special> <project> <project_id>1M0572</project_id> <agency>GA MŠk</agency> <ARLID>cav_un_auth*0001814</ARLID> </project> <research> <research_id>CEZ:AV0Z10750506</research_id> </research>  <abstract language="eng" primary="1">We propose a new low complexity Approximate Joint Diagonalization (AJD)  algorithm, which incorporates nontrivial  block-diagonal weight matrices into a Weighted Least-Squares (WLS)  AJD criterion. We show how the new algorithm can be utilized in an  iteratively-reweighted separation scheme, thereby giving rise to  fast implementation of asymptotically optimal BSS algorithms in  various scenarios. In particular, we consider three specific (yet  common) scenarios, involving stationary or block-stationary  Gaussian sources, for which the optimal weight matrices can be  readily estimated from the sample covariance matrices (which are  also the target-matrices for the AJD). Comparative simulation  results demonstrate the advantages in both speed and accuracy, as  well as compliance with the theoretically predicted asymptotic  optimality of the resulting BSS algorithms based on the weighted  AJD, both on large scale problems with matrices of the size 100 x 100.</abstract> <abstract language="cze" primary="0">V práci je navržena nová metoda přibližné vzájemné diagonalizace souboru matic, která obsahuje netriviální váhové matice, jimiž se nastavuje fungování algoritmu. Algoritmus má velmi nízkou výpočetní složitost. Je ukázáno iterativní  použití algoritmu s adaptivním odhadováním váhových matic, a to při slepé separaci signálů ve třech různých variantách: separace nezávislých autoregresních procesů a separace po blocích stacionárních autoregresních procesů s řádem 1 nebo vyšším.  Ve všech případech je tak možné získat asymptoticky eficientní odhady. Algoritmus lze použít na diagonalizaci velkých matic, např. velikosti 100x100.</abstract>     <reportyear>2009</reportyear>  <RIV>BB</RIV>      <permalink>http://hdl.handle.net/11104/0170139</permalink>          <unknown tag="mrcbT16-f">2.954</unknown> <unknown tag="mrcbT16-g">0.316</unknown> <unknown tag="mrcbT16-h">7.2</unknown> <unknown tag="mrcbT16-i">0.04685</unknown> <unknown tag="mrcbT16-j">1.039</unknown> <unknown tag="mrcbT16-k">15879</unknown> <unknown tag="mrcbT16-l">431</unknown> <unknown tag="mrcbT16-q">151</unknown> <unknown tag="mrcbT16-s">3.059</unknown> <unknown tag="mrcbT16-y">29.5</unknown> <unknown tag="mrcbT16-x">3.31</unknown> <arlyear>2009</arlyear>       <unknown tag="mrcbU34"> 000263431900006 WOS </unknown> <unknown tag="mrcbU56"> pdf </unknown> <unknown tag="mrcbU63"> cav_un_epca*0256727 IEEE Transactions on Signal Processing 1053-587X 1941-0476 Roč. 57 č. 3 2009 878 891 </unknown> </cas_special> </bibitem>