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The Viola–Jones object detection framework is a machine learning object detection framework proposed in 2001 by Paul Viola and Michael Jones. [1] [2] It was motivated primarily by the problem of face detection, although it can be adapted to the detection of other object classes. In short, it consists of a sequence of classifiers.
[8] [5] One study suggest that the central object is a binary star, due to the jet wiggling. [9] A follow-up study found that the jet-producing primary has a mass of 0.31 ±0.04 M ☉ and that the secondary has a mass of 0.14 ±0.03 M ☉. Both objects should be separated by 18.0 ±0.6 astronomical units (AU). [10]
C++11 extended this further, to make classes act identically to POD objects in many more cases. ^c pair only ^d Although Perl doesn't have records, because Perl's type system allows different data types to be in an array, "hashes" (associative arrays) that don't have a variable index would effectively be the same as records.
It was found to have an orbiting planet approximately double the mass of Jupiter with a period of 380 days. [27] WASP-72 is a star around 1.4 times as massive that has begun to cool and expand off the main sequence, reaching double the Sun's diameter. It has a planet around as massive as Jupiter orbiting it every 2.2 days. [28]
Due to their volatile-rich (icy) composition, C-type asteroids have relatively low density. A survey of 20 C-type asteroids found an average density of 1.7 g/cm 3. [4] The largest unequivocally C-type asteroid is 10 Hygiea, although the SMASS classification places the largest asteroid, 1 Ceres, here as well, because that scheme lacks a G-type.
Large-amplitude class-M variables and stars with spectral types later than about M5 are almost always AGB stars rather than red supergiants. These stars have a theoretical maximum luminosity and, at the distance of the SMC, HV 2112 was typically calculated to be slightly more luminous than this limit at around 60,000 L ☉ .
The swamp rabbit was first described in 1874 by John Bachman as Lepus aquaticus, having a type locality of "western Alabama". [5]Two subspecies are recognized: Sylvilagus aquaticus aquaticus, the nominate subspecies that occupies most of the swamp rabbit's recognized distribution, and Sylvilagus aquaticus littoralis, which is found only in a narrow band of marshes in Mississippi, Louisiana ...