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<bibitem type="C">   <ARLID>0306560</ARLID> <utime>20240111140700.5</utime><mtime>20080410235959.9</mtime>         <title language="eng" primary="1">A Fast Approximate Joint Diagonalization Algorithm Using a Criterion with a Block Diagonal Weight Matrix</title>  <specification> <page_count>4 s.</page_count> <media_type>CD-ROM</media_type> </specification>   <serial><ARLID>cav_un_epca*0306559</ARLID><ISBN>978-1-4244-1483-3</ISBN><ISBN>1-4244-1484-9</ISBN><title>ICASSP 2008: IEEE International Conference on Acoustics, Speech, and Signal Processing</title><part_num/><part_title/><page_num>3321-3324</page_num><publisher><place>Bryan</place><name>Conference Management Services</name><year>2008</year></publisher></serial>   <title language="cze" primary="0">Rychlý algoritmus pro přibližnou vzájemnou diagonalizaci, používající kriterium s blokově diagonální váhovou maticí</title>    <keyword>approximate joint diagonalization</keyword>   <keyword>blind source separation</keyword>   <keyword>autoregressive 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> <author primary="0"> <ARLID>cav_un_auth*0213020</ARLID> <name1>Nielsen</name1> <name2>Jan</name2> <institution>UTIA-B</institution>  <fullinstit>Ústav teorie informace a automatizace AV ČR, v. v. i.</fullinstit> </author>   <source> <source_type>textový dokument</source_type> <source_size>251kB</source_size> </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 algorithm for Approximate Joint Diagonalization  (AJD) with two main advantages over existing state-of-the-art  algorithms: Improved overall running speed, especially in large-scale (high-dimensional) problems; and an ability to incorporate specially structured weight-matrices into the AJD  criterion. The algorithm is based on approximate Gauss iterations  for successive reduction of a weighted Least Squares off-diagonality criterion. The proposed Matlab implementation allows AJD of ten 100x100 matrices in 3-4 seconds (for the unweighted case) on a common PC (Pentium M,  1.86GHz, 2GB RAM), generally 3-5 times faster than the fastest  competitor. The ability to incorporate weights allows fast  large-scale realization of optimized versions of classical blind  source separation algorithms, such as Second-Order Blind  Identification (SOBI), whose weighted version (WASOBI) yields  significantly improved separation performance.</abstract> <abstract language="cze" primary="0">V práci je navržen nový algoritmus pro vzájemnou diagonalizaci matic, který má oproti existujícím algoritmům dvě hlavní výhody: zlepšená rychlost výpočtu, zvláště u matic s vysokou dimenzí, a možnost využití specielně strukturovaných váhových matic v diagonalizačním kriteriu. Navržená implementace algoritmu v protředí Matlab umožnuje diagonalizaci 10 matic o velikosti 100 x 100 na běžném PC (Pentium M, 1.86GHz, 2GB RAM) - v průměru je 2-5x rychlejší než dosud nejrychlejší alternativy. Algoritmus umožňuje rychlou implementaci algoritmu WASOBI pro slepou separaci nezávislých autoregresních procesů s různými spektry.</abstract>  <action target="WRD"> <ARLID>cav_un_auth*0238885</ARLID> <name>ICASSP 2008, IEEE International Conference on Acoustics, Speech adn Signal Processing</name> <place>Las Vegas</place> <dates>30.03.2008-04.04.2008</dates>  <country>US</country> </action>    <reportyear>2010</reportyear>  <RIV>BB</RIV>      <permalink>http://hdl.handle.net/11104/0004577</permalink>       <arlyear>2008</arlyear>       <unknown tag="mrcbU56"> textový dokument 251kB </unknown> <unknown tag="mrcbU63"> cav_un_epca*0306559 ICASSP 2008: IEEE International Conference on Acoustics, Speech, and Signal Processing 978-1-4244-1483-3 3321 3324 Bryan Conference Management Services 2008 </unknown> </cas_special> </bibitem>