SEP: Source Extractor as a library
نویسندگان
چکیده
منابع مشابه
Galaxy Structural Parameters in Source Extractor
Over the last decade, the Concentration, Asymmetry and Smoothness (CAS), as well as the M20 and GINI parameters have become popular to automatically classify distant galaxies in images. Ellipticals, spirals and irregular galaxies all appear to occupy different regions of this parameter space. At the same time, the Source Extractor (SE) program has become the mainstay to produce object catalogs ...
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Abstract A construction of Bourgain [Bou05] gave the first 2-source extractor to break the min-entropy rate 1/2 barrier. In this note, we write an exposition of his result, giving a high level way to view his extractor construction. We also include a proof of a generalization of Vazirani’s XOR lemma that seems interesting in its own right, and an argument (due to Boaz Barak) that shows that any...
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We give an explicit construction of a function that is almost a 2-source extractor for linear entropy, it is a condenser where the output has almost full entropy. Given 2 sources with entropy δn, the output of the condenser is a distribution on m-bit strings that is ǫ-close to having min-entropy m− poly(log(1/ǫ), 1/δ), where here m is linear in n.
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Recently there has been considerable work toward standardizing SEFs (software exchange formats) for interchange of information about source programs. An exchange format is a common textual form for data extracted from source programs and used by a variety of software analysis and visualization tools. An SEF can be further specified by a schema, analogous to a schema for a data base. This paper ...
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The Astrophysics Source Code Library (ASCL), founded in 1999, is a free on-line registry for source codes of interest to astronomers and astrophysicists. The library is housed on the discussion forum for Astronomy Picture of the Day (APOD) and can be accessed at http://ascl.net. The ASCL has a comprehensive listing that covers a significant number of the astrophysics source codes used to genera...
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ژورنال
عنوان ژورنال: The Journal of Open Source Software
سال: 2016
ISSN: 2475-9066
DOI: 10.21105/joss.00058