FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W2093249761> ?p ?o ?g. }

• W2093249761 endingPage "2452" @default.
• W2093249761 startingPage "2439" @default.
• W2093249761 abstract "We have applied ClassX, an oblique decision tree classifier optimized for astronomical analysis, to the homogeneous multicolor imaging database of the Sloan Digital Sky Survey (SDSS), training the software on subsets of SDSS objects whose nature is precisely known via spectroscopy. We find that the software, using photometric data only, correctly classifies a very large fraction of the objects with existing SDSS spectra, both stellar and extragalactic. ClassX also accurately predicts the redshifts of both normal and active galaxies in SDSS. To illustrate ClassX applications in SDSS research, we (1) derive the object content of the SDSS Data Release 2 photometric catalog and (2) provide a sample catalog of resolved SDSS objects that contains a large number of candidate active galactic nucleus (AGN) galaxies (27,000), along with 63,000 candidate normal galaxies at magnitudes substantially fainter than the typical magnitudes of SDSS spectroscopic objects. The surface density of AGNs selected by ClassX to i ∼ 19 is in agreement with that quoted by SDSS. When ClassX is applied to photometric data fainter than the SDSS spectroscopic limit, the inferred surface density of AGNs rises sharply, as expected. The ability of the classifier to accurately constrain the redshifts of huge numbers (ultimately ∼107) of active galaxies in the photometric database promises new insights into fundamental issues of AGN research, such as the evolution of the AGN luminosity function with cosmic time, the starburst-AGN connection, and AGN–galactic morphology relationships." @default.
• W2093249761 created "2016-06-24" @default.
• W2093249761 creator A5016808896 @default.
• W2093249761 creator A5024374781 @default.
• W2093249761 creator A5060009415 @default.
• W2093249761 date "2005-12-01" @default.
• W2093249761 modified "2023-10-18" @default.
• W2093249761 title "A Census of Object Types and Redshift Estimates in the SDSS Photometric Catalog from a Trained Decision Tree Classifier" @default.
• W2093249761 cites W1491925085 @default.
• W2093249761 cites W1963643338 @default.
• W2093249761 cites W2012864925 @default.
• W2093249761 cites W2015901107 @default.
• W2093249761 cites W2026619221 @default.
• W2093249761 cites W2032744495 @default.
• W2093249761 cites W2035099869 @default.
• W2093249761 cites W2037084352 @default.
• W2093249761 cites W2037502800 @default.
• W2093249761 cites W2052916539 @default.
• W2093249761 cites W2066773429 @default.
• W2093249761 cites W2067857092 @default.
• W2093249761 cites W2075831123 @default.
• W2093249761 cites W2080691528 @default.
• W2093249761 cites W2083772309 @default.
• W2093249761 cites W2109510044 @default.
• W2093249761 cites W2110974585 @default.
• W2093249761 cites W2120684453 @default.
• W2093249761 cites W2128515757 @default.
• W2093249761 cites W2130908251 @default.
• W2093249761 cites W2132711591 @default.
• W2093249761 cites W2150331774 @default.
• W2093249761 cites W2157917411 @default.
• W2093249761 cites W2166365370 @default.
• W2093249761 cites W2166875194 @default.
• W2093249761 cites W2171144488 @default.
• W2093249761 cites W2603230884 @default.
• W2093249761 cites W2950468296 @default.
• W2093249761 cites W3098040203 @default.
• W2093249761 cites W3098563791 @default.
• W2093249761 cites W3101021073 @default.
• W2093249761 cites W3101991230 @default.
• W2093249761 cites W3125448222 @default.
• W2093249761 cites W3126126471 @default.
• W2093249761 doi "https://doi.org/10.1086/497363" @default.
• W2093249761 hasPublicationYear "2005" @default.
• W2093249761 type Work @default.
• W2093249761 sameAs 2093249761 @default.
• W2093249761 citedByCount "37" @default.
• W2093249761 countsByYear W20932497612012 @default.
• W2093249761 countsByYear W20932497612013 @default.
• W2093249761 countsByYear W20932497612014 @default.
• W2093249761 countsByYear W20932497612015 @default.
• W2093249761 countsByYear W20932497612016 @default.
• W2093249761 countsByYear W20932497612018 @default.
• W2093249761 countsByYear W20932497612019 @default.
• W2093249761 countsByYear W20932497612020 @default.
• W2093249761 countsByYear W20932497612023 @default.
• W2093249761 crossrefType "journal-article" @default.
• W2093249761 hasAuthorship W2093249761A5016808896 @default.
• W2093249761 hasAuthorship W2093249761A5024374781 @default.
• W2093249761 hasAuthorship W2093249761A5060009415 @default.
• W2093249761 hasBestOaLocation W20932497611 @default.
• W2093249761 hasConcept C121332964 @default.
• W2093249761 hasConcept C1276947 @default.
• W2093249761 hasConcept C135041427 @default.
• W2093249761 hasConcept C150846664 @default.
• W2093249761 hasConcept C2780974285 @default.
• W2093249761 hasConcept C33024259 @default.
• W2093249761 hasConcept C43481613 @default.
• W2093249761 hasConcept C44870925 @default.
• W2093249761 hasConcept C68271606 @default.
• W2093249761 hasConcept C73329638 @default.
• W2093249761 hasConcept C98444146 @default.
• W2093249761 hasConceptScore W2093249761C121332964 @default.
• W2093249761 hasConceptScore W2093249761C1276947 @default.
• W2093249761 hasConceptScore W2093249761C135041427 @default.
• W2093249761 hasConceptScore W2093249761C150846664 @default.
• W2093249761 hasConceptScore W2093249761C2780974285 @default.
• W2093249761 hasConceptScore W2093249761C33024259 @default.
• W2093249761 hasConceptScore W2093249761C43481613 @default.
• W2093249761 hasConceptScore W2093249761C44870925 @default.
• W2093249761 hasConceptScore W2093249761C68271606 @default.
• W2093249761 hasConceptScore W2093249761C73329638 @default.
• W2093249761 hasConceptScore W2093249761C98444146 @default.
• W2093249761 hasIssue "6" @default.
• W2093249761 hasLocation W20932497611 @default.
• W2093249761 hasLocation W20932497612 @default.
• W2093249761 hasLocation W20932497613 @default.
• W2093249761 hasOpenAccess W2093249761 @default.
• W2093249761 hasPrimaryLocation W20932497611 @default.
• W2093249761 hasRelatedWork W1983910767 @default.
• W2093249761 hasRelatedWork W1997076624 @default.
• W2093249761 hasRelatedWork W2011923450 @default.
• W2093249761 hasRelatedWork W2047342598 @default.
• W2093249761 hasRelatedWork W2518649581 @default.
• W2093249761 hasRelatedWork W2622566956 @default.
• W2093249761 hasRelatedWork W2948195427 @default.
• W2093249761 hasRelatedWork W2951077830 @default.
• W2093249761 hasRelatedWork W3081119909 @default.

• next