... Classifying or clustering (or semi supervised learning) spectra is a very challenging problem from collecting statistical-analysis-ready data to reducing the dimensionality without sacrificing complex information in each spectrum. ... Continue reading ?[ ... Category: Algorithms , arXiv , Cross-Cultural , Data Processing , Jargon , Methods , Spectral , Stat | ... Category: Algorithms , arXiv , Astro , Bad AstroStat , Cross-Cultural , Data Processing , Frequentist , Jargon , Methods , Stat | ... ADS ...

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• The AstroStat Slog semi-supervised learning
• The AstroStat Slog Blog Archive Classification and Clustering
• The AstroStat Slog discriminant analysis

... The routines implemented are CLUSTER which has 8 options for hierarchical clustering and PARTITION which carries out non--hierarchical clustering. ... The former is non--hierarchical clustering or partitioning. The latter is hierarchical clustering. Brief consideration will show that a sequence of n-1 agglomerations are needed to successively merge the two closest objects and/or clusters at each stage, so that we have a set of n (singleton) clusters, n-1 clusters, ..., 2 clusters, 1 cluster. ...

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• Principal Components Analysis
• Multivariate Statistical Methods
• Discriminant Analysis

. · . Наши юбиляры .                   . · Сотрудники отдела . · Наша научная работа . · Семинар по Звездной астрономии . · Конференции . · Общий Каталог Переменных Звезд . · Каталог рассеянных скоплений . · Московская школа звездной астрономии . · Юбилеи сотрудников . · Избранные публикации . · Педагогическая и популяризаторская деятельность . · Наши интернет-ресурсы и другие полезные ресурсы . · Ссылки на каталоги и базы данных . · Фотогалерея . Присылайте Ваши вопросы и комментарии Ольге Дурлевич

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• APOD: 2007 August 9 - Star Cluster Messier 67
• APOD: 2010 June 20 - Abell 2218: A Galaxy Cluster Lens

... These Frontier Fields will combine the power of HST with the natural gravitational telescopes of high-magnification clusters of galaxies. ... We are soliciting gravitational lensing maps for the last four Hubble Frontier Fields clusters (MACSJ0717.5+3745, MACSJ1149.5+2223, AbellS1063, and Abell 370) based upon the exceptionally deep HST FF imaging and other new ancillary data. ... For the full set of proposal instructions and requirements, see the FY16 Frontier Fields Lensing Map Call for Proposals....

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• George Hawkins
• Evolution of the HST Proposal Selection Process: Changes for Cycle 9
• NICMOS STScI Analysis Newsletter 24

Full-Simulation Calorimeter Study For Energy Flow Jet reconstruction Jan. ... Good Jet reconstruction is essential Jet Reconstruction .. Energy Flow method We use Tracker for charged particles Calorimeters neutral particles For example, in e+e- !tt (6jets,4jets) events, Charged particles carry ~60% of event energy ! ... I'll report Clustering algorithm GISMO vs GEANT4 Photon reconstruction study In this study, we use e+e- ! ... 0.9) Average # of clusters in a particle .. ...

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• Astronomy HyperText Book: Stellar Clusters
• Astronomy HyperText Book: Stellar Evolution

Next: J.E. Chambers, Research Astronomer Up: Research Previous: Research Contents . ... Solar Variability and Climate . Other Activities . ... Applied to data of flares on Gliese866 he was able to estimate the area of hydrogen emitting flare regions as 1-13% of the stellar surface. ... As partners in the project, Armagh Observatory has been asked to contribute to the selection process in exchange for priority access to the data which will eventually flow from the satellite. ...

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• Armagh Observatory: Chris Winter [ Bookmarks ]
• E-Science

You can also see this page in Russian with using KOI8 (X Windows) or CP1251 (MS Windows) Cyrillic coding. The Laboratory supports the space TV experiments, mainly in the planetary exploration missions. ... Image Co-registration . ... PHOBOS mission - Martian satellites investigations. Phobos on the Martian limb, the image from Phobos-2 probe from 02/28/89. ... Russian Space Bulletin. ... Last modified at June,26 1997 Alexey Kuzmin: akuzmin@mx.iki.rssi.ru . Back to IKI home page ...

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• Dr. Victoria I. Prokhorenko

... This paper describes the main algorithms used by the Einstein Level One processing to create the exposure masks and the background maps for Einstein IPC images, and how these algorithms were recreated in the IRAF environment. Our goal was to recreate the algorithms used by the Level One Processing to create exposure masks and background maps for Einstein Image Proportional Counter (IPC) data (cf. sections 2.5 and 2.7 of Harnden et al. ...

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• Unsupervised Catalog Classification
• Data Analysis and Processing Techniques
• Spatial Structure of NGC 6822: An Example for Statistical Modeling of

dfos = Data Flow Operations System, the common tool set for DFO . ... dfos tools . ... clMonitor.html, exported to http://qcweb.hq.eso.org/CLUSTER/monitor . ... The clMonitor gives an overview of the currently condor activity (nodes executing condor jobs) and the pending queue. ... idle | ... busy' indicates that condor currently executes a job on that node; 'idle' means no current condor job; 'reserved/not available' means the node is not configured for condor jobs, or is currently not available. ...

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• ESO - star07
• ESO - Thesis Topic: Studying the first galaxy clusters with ALMA
• ESO - Clustering Measurements of Active Galactic Nuclei

STScI-PRC99-30 . ... 2 Micron All Sky Survey (2MASS) mosaic of the center of the Milky Way . Credit: University of Massachusetts and Infrared Processing and Analysis Center . ... STScI | ... AURA) , for NASA , under contract with the Goddard Space Flight Center , Greenbelt, MD. The Hubble Space Telescope is a project of international cooperation between NASA and the European Space Agency (ESA) . Office of Public Outreach -- outreach@stsci.edu . ...

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• Arcetri Star-Formation Group Publications
• HAEBE Clusters Analysis (Abstract)
• SWXCS

... Read in data: Fill (x, y, count) data records: Binned mode: x,y: image pixel coordinates count: number of events in pixel Single photon mode: x,y: event coordinates count:=1 Feed data records, background maps, and exposure maps into Maximum Likelihood PSF fitting algorithm: Use Marquarth-algorithm to minimize likelihood function of multi-source PSF fit. Remove sources from fit which do not significantly improve goodness of fit (required improvement in likelihood specified by parameter). ...

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• Event processing

... Abell 2218: A Galaxy Cluster Lens . ... Background galaxies. ... Almost all of the bright objects in this Hubble Space Telescope image are galaxies in the cluster known as Abell 2218. ... Publications with keywords: Abell 2218 - gravitational lens - cluster of galaxies . Publications with words: Abell 2218 - gravitational lens - cluster of galaxies . ... The Coma Cluster of Galaxies . ... Abell 370: Galaxy Cluster Gravitational Lens . MACSJ0025: Two Giant Galaxy Clusters Collide . ...

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• Star Cluster Messier 67
• Астронет > Star Cluster Messier 67
• The Snowflake Cluster versus the Cone Nebula

... Tonight's Sky . ... News . Observing . ... Supernova showered Earth with radioactive debris . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Supernova simulations reveal new processes . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• Processing your sketch | Astronomy.com
• Is Mars red because of iron corrosion? If so, what process caused it to occur?
• stars and star clusters | Astronomy.com

... Structure of Data . ... Catalog . ... In SAI OCL Catalog, we introduce our work on investigation of the Milky Way system of open star clusters. The main goal of our study is a search for new clusters using huge surveys. 168 new clusters have been already discovered by us using J,H,Ks data from 2MASS point source catalog. ... For 141 new clusters, we found their physical parameters using J,H,Ks data from 2MASS catalog and, for a number of clusters, our UBVRI CCD observational magnitudes. ...

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• SAI OCL Catalog Virtual Observatory
• SAI OCL Catalog Description

Tsys for polA,polB changing in 2003,2004 . 10jan05: Looking at Tsys and maps during various steps of the processing. Looking at the processed data map, beam map, and uv data . ... It would probably be a good idea to fit tsys to the individual days rather than the entire map at once. 2004 map CA04 (.ps) ( .pdf ) . ... The top plot is the average with no raramp remove, the bottom plot is the average with the raramp removed from the pre-basketweave ramap. 2004 map CA04 (after gridding) . ...

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• http://www.naic.edu/~astro/talks/abstracts/werthimer_05jun06.htm
• http://www.naic.edu/alfa/ealfa/meeting1/talks/davies.pdf
• http://www.naic.edu/alfa/ealfa/meeting1/talks/cordes.pdf

ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Australia Telescope User Committee . ... Astrophysics graduate student programs . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . Australia Telescope Compact Array . Mopra radio telescope . ... Information & tools for observers . ... Parkes | ATCA | ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... The Australia Telescope National Facility Colloquium . ...

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• correlator:mpiscript [ATNF VLBI Wiki]
• difx:benchmarking [ATNF VLBI Wiki]
• Index

Teaching courses . for student of the Department of Astrophysics and Stellar Astronomy . ... Geophysics and physics of the planets (Kurt, Panteleev) . ... Close Binary Stars . ... Solar Physics . ... This is introductory course for students of the third year of education which are familiar with elementary astronomy and general physics. ... The one-year course includes theory of radiation transfer, theory of internal stellar structure with account of binary systems with compact comapnions. ...

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• Springer LINK:A&A-EE: Table of Contents Volume 323 Number 2 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 317 Number 3 (1997)
• Springer LINK:A&A-EE: Table of Contents Volume 322 Number 1 (1997)

The AstroGuide . ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . IPAC exists to carry out large, data-intensive processing tasks of critical importance to NASA's infrared astronomy program, and to provide scientific expertise on those projects to the astronomical community. ... Web Site . ... Web . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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Next: The Formation and Evolution Up: NICMOS Science Previous: NICMOS Observes the Galactic . ... We have taken diffraction-limited ( 0.15") near-infrared F160W (henceforth H-band, for convenience) images with NICMOS on HST of the center of the R136 cluster (age 3.5 Myr) in the core of the 30 Dor giant HII region in the Large Magellanic Cloud. ... 1996, ApJ 466, 274) can sample only M >2M , while previous V and I band HST images with WFPC2 (Hunter et al. ...

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• NICMOS Data Calibration and Analysis
• The Formation and Evolution of LMC Rich Star Clusters: NGC 1818
• ADASS VII Subject Index

... Participants . ... Traditionally, the workshop takes place at three locations: the Independent University of Moscow (3 days), the Steklov Mathematical Institute (2 days) and the Higher School of Economics (1 day). ... Organizing Committee: Leonid Chekhov (Steklov and Poncelet), Sergei Lando (HSE), Igor Krichever (HSE and Columbia Univ.) ... This covers also the welcome party and the conference dinner. ... Go to the Laboratoire Poncelet home page. to the Steklov Mathematical Instutute home page. ...

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• ANR OTARIE project: transport optimization and applications
• Conference "Random Processes, Conformal Field Theory and Integrable Systems"