J/ApJS/152/201ivo://CDS.VizieR/J/ApJS/152/201doi:10.26093/cds/vizier.21520201CDSGupta R.Singh H.P.Volk K.Kwok S.2017-09-22T16:16:27Z2005-08-31T22:22:18ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frinfrared-sourcesinfrared-astronomyspectroscopyAn artificial neural network (ANN) scheme has been employed that uses a supervised back-propagation algorithm to classify 2000 bright sources from the Calgary database of Infrared Astronomical Satellite (IRAS) spectra in the region 8-23{mu}m. The database has been classified into 17 predefined classes based on the spectral morphology. We have been able to classify over 80% of the sources correctly in the first instance. The speed and robustness of the scheme will allow us to classify the whole of the Low Resolution Spectrometer database, containing more than 50,000 sources, in the near future.2004ApJS..152..201Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/152/201CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/197 : IRAS Low Resolution Spectra (IRAS team, 1987)http://www.iras.ucalgary.ca/database.html :https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/152/201https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/152/201http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/152/201https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/152/201https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/152/201http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/152/201GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/152/201/table3 (List of LRS sources misclassified by Artificial Neural Network)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/152/201/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/152/201/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/152/201/table3?GETtext/xml+votable180.050000true70.72356136.1146110.0055555555555555566/220 765 1114 1169 1182 1217 1238 1371 1806 1889 1892 1930 2795 2937 2990 3243 3285 3299 3510 3718 3829 6897 8532 9968 11747 11928 12300 12470 12888 12909 12948 12974 12982 13049 13089 13666 13711 14177 14248 14267 14287 14302 14306 14308 14314 14336 14412 14415 14418 14425 14434 14443 14458 14468 14603 14604 14610 14618 14632 14665 14679 14689 14692 14696 14736 14846 15170 15428 15430 15433 15449 15450 15458 15625 15650 15657 15741 16655 16783 17271 17754 18425 20615 20626 20764 20824 21316 21338 21458 21523 21549 21643 21977 22023 22041 22051 22243 22829 23095 23636 23667 23787 23940 23969 24158 24487 24499 24501 24515 26289 28686 28727 28765 28774 28803 28806 28812 28821 28822 28825 28826 28831 28835 28836 28847 28859 28866 28880 28894 28903 28909 28916 29031 29062 29094 29096 29100 29103 29117 29118 29167 29250 29302 29346 29347 29387 29446 29447 29466 29499 29511 29519 29527 29528 29535 29656 29690 29703 29832 29852 30217 30222 30240 30241 30243 30244 30245 30252 30260 30263 30266 30312 30345 30356 30359 30417 30419 30422 30437 30440 30595 30605 30606 30616 30617 30623 30626 30640 30701 30715 30717 30718 30787 30795 31292 32019 32065 32331 33589 36954 36986 37174 37203 37214 37335 37343 37355 37357 37362 37365 37366 37369 37703 37732 37833 37850 37881 37895 37901 37908 37921 37927 37952 38002 38020 38024 38026 38028 38062 38130 38197 38435 38455 38660 39246 39250 39267 39345 39355 39368 39395 39631 39789 39790 39835 39940 40117 40847 41103 41284 41310 41392 41443 41457 41472 41580 41586 41591 41597 41599 41611 41630 41652 41670 41675 41676 41687 41688 41697 41724 41744 41766 41769 41771 41777 41780 41781 41801 41803 41806 41815 41817 41822 41825 41832 41893 41940 41974 42051 42109 42151 42173 42184 42190 42199 42205 42206 42208 42213 42214 42216 42217 42219 42221 42224 42226 42232 42236 42272 42283 42290 42344 42370 42374 42387 42389 42394 42396 42401 42404 42440 42457 42465 42489 42496 42505 42512 42513 42515 42517 42522 42560 42562 42757 42774 42840 42845 42850 42956 42960 43020 43024 43040 43046 43258 43559 43572 43864 44352 45700 45809 45973 46318 47387 47737 47822 48073 48822 48903 48951 49132https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/152/201?format=asciiInfrareddefaultJ/ApJS/152/201/table3List of LRS sources misclassified by Artificial Neural NetworkIRASIRAS designationcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClassCatalog class, defined in class.dat fileintAClassArtificial Neural Network class, defined in class.dat fileintLRSDisplay the LRS spectrum (plot and table) from LRS (Cat. III/197)charCalgarySimbad column added by the CDSchar_RAPosition (from LRS (III/197) catalog) (right ascension part)degpos.eq.ra;meta.main_DEPosition (from LRS (III/197) catalog) (declination part)degpos.eq.dec;meta.mainJ/ApJS/152/201/classesClasses definitionrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintClassClass numberintDefDefinition of the classchar