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	Random data - Wikipedia, the free encyclopedia
		Random data is data that is generated using random processes or data that has no discernable pattern.
		Theoretically, random data will produce suboptimal results if used as input to a lossless data compression algorithm.
		Random Data is the name of a growing e-community currently running on a sub-domain at http://random-data.northcentralonline.com/forums/ The forum is dedicated to discussion on various subjects, from videogames and writing to artwork and boxing.
	en.wikipedia.org /wiki/Random_data (138 words)

	Patents on compression of random data (Site not responding. Last check: 2007-08-19)
		This document is an analysis of patent 5,488,364 on the compression of random data.
		The patented method is claimed to be able to compress random data, and thus to be applicable recursively to already compressed data.
		Random input data is thus mapped to random data by the xor operation.
	www.teaser.fr /~jlgailly/05488364.html (263 words)

	Random Number Generator: Really Random Numbers Generates High Quality Easy-to-Use Random Numbers for Windows.
		The result is superior random data that passes virtually all statistical tests of randomness and improves significantly over biased and predictable pseudo-random number generators.
		Random data is generated either as uniformly distributed binary data, uniformly distributed integers and floating point values, random character strings (for passwords, etc.), or as random permutations and combinations.
		Random data is buffered for delivery in memory for delivery to other applications via an API and can also be written to file.
	www.sunny-beach.net /random_numbers (618 words)

	Terrorist Attacks, September 11 2001
		We cannot explain the presence of stark patterns in data that should be random, nor do we have any way of divining their ultimate meaning, yet there appears to be an important message here.
		The graph of data from the formal prediction for September 11 shows a fluctuating deviation throughout the moments of the five major events, during which ever-increasing numbers of people around the world are hearing the news and watching in stunned disbelief.
		For a visual indication of the likelihood that this is merely a random fluctuation, a comparison can be made with pseudo-data generated for September 11, 2001, and plotted in the same format.
	noosphere.princeton.edu /terror.html (5372 words)

	Data Files
		Data are output from the project and written on the disk.
		Numeric data types such as integer, single, and currency are stored in 2 or 4 bytes that can be reread by a project but look cryptic when displayed by a text editor.
		As data elements are written on disk, string fields are enclosed in quotation marks and the fields are separated by commas.
	www.geocities.com /ics3m/reference_data_files.htm (6318 words)

	Secure Deletion of Data from Magnetic and Solid-State Memory
		The erasability of the data depends on the amount of time it has been stored on the media, not on the age of the media itself (so that, for example, a five-year-old freshly-written disk is no less erasable than a new freshly-written disk).
		Data overwritten once or twice may be recovered by subtracting what is expected to be read from a storage location from what is actually read.
		Data which is overwritten an arbitrarily large number of times can still be recovered provided that the new data isn't written to the same location as the original data (for magnetic media), or that the recovery attempt is carried out fairly soon after the new data was written (for RAM).
	www.cs.auckland.ac.nz /~pgut001/pubs/secure_del.html (7573 words)

	[9] Compression of random data (WEB, Gilbert and others)
		Such algorithms are claimed to compress random data and to be applicable recursively, that is, applying the compressor to the compressed output of the previous run, possibly multiple times.
		Otherwise, it would be sufficient to consider any input data as a number, use this as the file name, iteration count or bit length, and pretend that the compressed size is zero.
		If the decompressor needs such bit lengths to decode the data (when the bit strings do not form a prefix code), the number of bits needed to encode those lengths must be taken into account in the total size of the compressed data.
	www.faqs.org /faqs/compression-faq/part1/section-8.html (4166 words)

	Random Data: Analysis & Measurement Procedures - From Monitor-Data.com Store
		This eagerly awaited new edition of the bestselling random data analysis book continues to provide first-rate, practical tools for scientists and engineers who investigate dynamic data as well as those who use statistical methods to solve engineering problems.
		So it is difficult to apply to my raw data because the assumptions that were applied to the theory were invalid in real situation.
		However, Â¡Â°Random data by Bendat and PiersolÂ¡Â± more will be helpful to the people who deal with time series, want to design statistical filters and to do the statistical tests and need more profound and systematic theories and understanding.
	www.monitor-data.com /books/0471317330.html (476 words)

	Music
		Mark's work uses the random data directly to select pitches and presence for a tubular bell instrument tuned to a pentatonic scale.
		Next we have Crystaline Millenial which plays data from the two minutes around the transition from 1999 to 2000, using a text evoking a babbling brook, by Leane Roffey.
		Leane's birthday provides the data and her blues riff measure bank the interpretation in LR Blues.
	noosphere.princeton.edu /music.html (1012 words)

	HotBits: Genuine Random Numbers
		A test program is available at this site which applies such tests to sequences of bytes and reports how random they appear to be, and if you run this program on data generated by a high-quality pseudorandom sequence generator, you'll find it generates data that are indistinguishable from a sequence of bytes chosen at random.
		Since the HotBits generation hardware produces data at a modest rate (about 30 bytes per second), requests are usually filled from an "inventory" of pre-built HotBits.
		Once the random bytes are delivered to you, they are immediately discarded--the same data will never be sent to any other user and no records are kept of the data at this or any other site.
	www.fourmilab.ch /hotbits (392 words)

	Fuzz home page (Site not responding. Last check: 2007-08-19)
		At present this is mostly a pipe dream but I have dreams of using genetic algorithms to mate the data sets so that maximum code coverage is attained.
		If the data stream is substantially different then the program might not be able to deal with it.
		Fist of all since the data stream is really and truly random, it is very likely that this will throughly test out a very small percentage of the total program.
	fuzz.sourceforge.net (532 words)

	Coincidences: Remarkable or Random? (Skeptical Inquirer / September 1998)
		In a random selection of twenty-three persons there is a 50 percent chance that at least two of them celebrate the same birthdate.
		Since the decimal digits of p are random, we may simulate a random sequence of heads and tails in coin tossing by assigning even digits to heads and odd digits to tails.
		If someone finds a pattern combing random data, he or she may use it as a hypothesis for investigation of more data but should never make a general conclusion from it.
	www.csicop.org /si/9809/coincidence.html (4018 words)

	Treatment of Missing Data
		If, on the other hand, data are not missing at random, but are missing as a function of some other variable, a complete treatment of missing data would have to include a model that accounts for missing data.
		These are data that I created and analyzed elsewhere to match the results that Sethi and Seligman obtained, although for purposes of this example I will alter those data so as to remove "Religious Affiliation" from 30 cases.
		The data for this example are contained in a file named FundMiss.dat, which is available for downloading, although it is much too long to show here.
	www.uvm.edu /~dhowell/StatPages/More_Stuff/Missing_Data/Missing.html (5723 words)

	Random Selection Software and Random Sampling by RandomBots.com
		Generate a fixed or variable number of blank data items per set - the position of each blank item is determined at random.
		Random sample from non-numeric data and numeric (multiple ranges) and random date scheduling.
		Vortex is a random number generator for integers and floating point numerics.
	www.randombots.com (489 words)

	A method of free speech on the Internet: random pads
		Then take the data you wish to store (it must be at most 128 kilobytes), and XOR it with all the pads you have selected (using the Perl script given below).
		Thus, data can be effectively hidden in the set of pads, and will not be found until someone issues a notice that such a combination of pads gives something interesting.
		If you want to hide the data on top of hiding the origin, then you use a traditional cipher; for example, you encrypt your data using blowfish and you use that data (the ciphertext, which for all intents and purposes is random) as input to the pad system.
	www.eleves.ens.fr:8080 /home/madore/misc/freespeech.html (3744 words)

	GENERATING DATA (Site not responding. Last check: 2007-08-19)
		A useful feature of MINITAB is the ability to generate random data for use in your analysis for comparison and other methods.
		Firstly the number of random numbers you want in each column, and secondly, the columns you wish to place these numbers in.
		Note that the random command and its arguments must be followed by a semicolon.
	www.comp.lancs.ac.uk /cjex/htmls/distgen.html (551 words)

	Random Data
		No data is ever stored (at least not for this transmission).
		The counting argument and the data communication in general is calculated on how many symbols (typically bits) are transmitted from the sender (the compressor) to the receiver (the decompressor).
		It doesn't matter where the data is transmitted.
	www.codecomments.com /Compression/message257888-3.html (1415 words)

	Random data concerning Guide
		For the above method to work, you have to have data close in to the actual event (ideally, astrometry taken a week or two beforehand.) You may have lots of data taken months ago, but none of it could be used.
		It usually doesn't matter with data of lesser quality, where the errors due to the GSC and such mask the effects of perturbations.
		Their magnitudes are therefore R and B (well, close to it; some of the plates are not as 'R' or 'B' as one would ideally wish.) However, when you right-click on an Ax.0 star in Guide, you get an R, B, and a V magnitude.
	www.projectpluto.com /random.htm (3458 words)

	DBMS - March 1997 - SQL for Smarties
		Randomizing data is much like shuffling a deck of cards.
		Other times you want the data in your database clustered in some sorted order in physical storage because you will be searching it in that order.
		Diaconis and other researchers also found out that certain-size decks would have sudden changes in their randomness; after six riffle shuffles, a deck is still visibly ordered, but this order disappears with the seventh shuffle.
	www.dbmsmag.com /9703d06.html (2760 words)

	CensusAtSchool (Site not responding. Last check: 2007-08-19)
		These data are for use in your classroom or for your pupil's projects.
		You choose to select from all data or you can choose responses from a particular region, age or gender depending on which database you choose.
		The data contained in all but the South Africa databases were collected from volunteer schools.
	worksheet.censusatschool.ntu.ac.uk /random2 (219 words)

	Global Consciousness Project Index - Dashboard - Games (Site not responding. Last check: 2007-08-19)
		This real-time widget pulls data from the Global Consciousness Project and performs statistics on the data to produce an indicator for the resonance and coherence of the Earth.
		They perform statistical analysis on the data to see trends in the supposed random data.
		When the widget turns red, there is a 1 in 20 chance that the data is random.
	www.apple.com /downloads/dashboard/games/globalconsciousnessprojectindex.html (226 words)

	13995: ValiCert Enterprise Validation Authority Random Data Generation Weakness
		This means this vulnerability is lacking proper or complete infomation, and is in queue for processing by either a Data Mangler or Moderator.
		If you would like to apply to be a Data Mangler, please fill out the "Data Mangler Application".
		Data Manglers do a large amount of technical writing.
	www.osvdb.org /displayvuln.php?osvdb_id=13995 (370 words)

	Filling DB with random data (Site not responding. Last check: 2007-08-19)
		After you hit enter, the whole content of database will be erased and populated with some random data.
		You might get some database errors while generating data, as this algorithm is not truly random.
		All data will be erased from database, except LMS users (Administrators) records.
	www.kondrat.foxnet.pl /pop/lms/doc/html/en/devel-genfake.html (107 words)

	Does random data compress?
		For sequences of very short length, this ratio varies quite a bit, but the second term quickly approaches zero, so for any practical sequence of data (who would want to compress three bytes?), the ratio is 1/255 minus a very small constant.
		I encrypted a bitmap with PGP and deleted the header to leave a file of basically random data.
		I usually write random number generators by finding the natural antilog e^x of some value and clipping off the leading 10 digits.
	www.daniweb.com /techtalkforums/showthread.php?p=58424 (757 words)

	Random Data
		By Random Data, I take as meaning a compressed file down to its finite limit.
		If we take truly random data then mathematically there is an argument that would seem to support the notion that this data is not compressible.
		No file is random in the sense I could define a compressor and assign a number to it and that write the file out.
	www.codecomments.com /message257888.html (2074 words)

	Antivirus World - News, removal tools, how to delete viruses, trojans, worms
		Creators of such programs thoroughly procure for their imperceptible "living" in the victimized machines and not always a computer owner may notice that his or her PC is open to an external invasion.
		Any data that is entered is saved in a file named ppinfo.sys, which the worm mails to the virus creator.
		That was the time when computer hooliganism and vandalism in the form of programs destroying data on the victimized PC or simply displaying innocent pictures was born.
	www.antivirusworld.com /news/news-archive-11-2003.php (6286 words)

	CensusAtSchool
		There is also a random data selector to request samples of data from our databases.
		If there is any data you would like for a particular lesson or project that is not currently available then please let us know and we will endeavour to provide it for you.
		There are also two random samples of data available to download.
	www.censusatschool.ntu.ac.uk /results.asp (388 words)

	edholden.com :: pseudo-random data
		This is a very special page for pseudo-random data - a place for all things that do not clearly belong in some other place.
		Please be careful when using this section of my site, as it follows very little logic and has no organizational structure.
		This is a random story generator on BBSpot that parodies Slashdot.
	www.edholden.com /random (158 words)

	Contouring Irregular Data on Maps
		ANSWER: The problem with gridding irregular data and then trying to contour the resulting gridded array on a map is almost always getting the vectors that go with the gridded data formed properly.
		Here is a little program that creates some random data in a map projection of the Eastern United States and shows how to grid it and lay it on top of the map projection.
		These two routines perform the gridding of the random or irregular data.
	www.dfanning.com /tips/mapcontourdata.html (367 words)

	GeoTools - Random Data Access
		Our streaming approach will threaten to isolate them, and in general itterators are "harder" to quickly hack with then arrays.
		Any GIS based data solution worth it's salt provides spatial indexing allowing the BBox based queries to really move.
		I would also assume that the choice of FID aligns well with something that is quickish (like row based access for shapefile, or primary key for a database).
	www.geotools.org /Random+Data+Access (370 words)

	Random Data (Site not responding. Last check: 2007-08-19)
		Although both R and S-plus are multifarious in their use, they are statistical programming languages at their core.
		As such, both have excellent random number generators for a wide variety of probability distributions, continuous and discrete.
		Each distribution has four functions available for different tasks associated with the probability distribution: evaluation of the density (or mass function), the distribution function, the quantile function, and random number generation.
	www.stat.psu.edu /docs/manual/unix/node55.html (199 words)

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