Unreferenced date December 2006 In computing, page cache , sometimes ambiguously called disk cache disambiguation disk cache , is a transparent buffer of disk backed pages kept in main memory RAM by the operating system for quicker access. Page cache is typically implemented in kernel computer science kernel s with the paging memory management, and is completely transparent to applications. All memory that is not directly allocated to applications is usually utilized for page cache. Hard disk read speeds are low and random access es require expensive disk seek s compared to main memory this is why RAM upgrades usually yield significant improvements in computers speed and responsiveness. Fact date February 2007 Separate disk caching is provided on the hardware side, by dedicated RAM or NVRAM ... September 2007 or in a disk array controller . Such memory should not be confused with page cache. Memory conservation details Demand paging Since non dirty page computing page s in the page cache ... , such as applications and libraries, are also typically accessed through page cache and mapped ... operating systems, notably Windows NT , even report the page cache usage as free memory, while the memory ... cache in Windows. Page cache and disk writes The page cache also aids in writing to a disk. Pages ... up. If it is already found in cache, the write is done to that page in memory. Otherwise, when ... are done. A file that is created or opened in the page cache, but not written to, might result ... available page cache disk cache for microcomputers was MicroCache from Microcosm Ltd . This appeared in 1982, initially for the CP M operating system and later for MS DOS . Microsoft added a disk cache to MS DOS version 4.01 in 1988. They called it SmartDrive . See also Cache computing Demand paging ... memory References references cite web author Joe Knapka title Swapping and the Page Cache in Linux ... Category Hard disk computer storage simple Page cache ... more details
In computing a Snoopy Cache is a type of memory cache that performs Bus sniffing . Such caches are used in systems where many processors or computers share the same memory and each have their own cache. In such systems processor A may read a value from memory, then processor B does the same. If either of the processors now change the value by writing back to memory they will invalidate the other processor s cached value. In order to prevent this, and maintain cache coherence snoopy caches monitor snoop on the memory bus to detect any writes to values that they are holding, even if these changes are coming from other processors or distributed computers. However, this approach can only work in computer architectures like SGI Challenge and SGI Onyx where a single memory bus is shared between all processors. References http www.icsa.inf.ed.ac.uk research groups hase models coherence index.html http techpubs.sgi.com library tpl cgi bin getdoc.cgi 0650 bks SGI Developer books T IRIX Prog sgi html ch01.html Category Cache coherency ... more details
Distinguish Cache miss Unreferenced date December 2009 In computer programming , negative cache is a cache computing cache that also stores negative responses, i.e. failures. This means that a program remembers the result indicating a failure even after the cause has been corrected. Usually negative cache is a design choice, but it can also be a software bug . Examples Consider a web browser which attempts to load a page while the network is unavailable. The browser will receive an error code indicating the problem, and may display this error message to the user in place of the requested page. However, it is incorrect for the browser to place the error message in the page cache, as this would lead it to display the error again when the user tries to load the same page even after the network is back up. The error message must not be cached under the page s Uniform Resource Locator URL until the browser is able to successfully load the page, whenever the user tries to load the page, the browser must make a new attempt. A frustrating aspect of negative caches is that the user may put a great effort into troubleshooting the problem, and then after determining and removing the root cause, the error still does not vanish. There are cases where failure like states must be cached. For instance, Domain Name System DNS requires that caching nameservers remember negative responses as well ... level however, to the nameserver caching it, it is not a failure. The cache times for negative and positive caching may be tuned independently. Description A negative cache is normally only desired ... should provide a clear indication of what must be done to clear the cache, in addition to a description of the cause of the error. In such conditions a negative cache is an example of a design anti pattern . See also Perl Design Patterns Book DEFAULTSORT Negative Cache Category Software bugs Category Software anomalies Category Cache computing Compsci stub ... more details
The Cache Heights Coord 73 27 S 94 6 W source GNIS display inline,title are broad snow covered heights about convert 3 nmi km 0 long and convert 2 nmi km 0 wide, located just northeast of Bonnabeau Dome in the Jones Mountains . Much lower than Bonnabeau Dome, the heights rise considerably above the adjacent ice surface. They were mapped and named by the University of Minnesota Jones Mountains Party, 1960 61 a food cache placed here by the party during a blizzard was never recovered. ref name gnis References Reflist refs ref name gnis cite gnis type antarid id 2276 name Cache Heights accessdate 2011 10 14 ref usgs gazetteer id 2276 Category Mountains of Ellsworth Land EllsworthLand geo stub ... more details
advert date April 2010 CSQL Cache is an open source ref cite web title CSQL sourceforge publisher sourceforge.net url http sourceforge.net projects csql ref high performance, bi directional updateable Database Cache data caching infrastructure that sits between the Cluster computing clustered application process and back end data source name data source s to provide high throughput to the application. ref cite web title CSQL Cache publisher csql url http www.csqldb.com download CSQLCacheWhitePaper.pdf ref CSQL Cache uses Main Memory Database CSQL Main Memory Database MMDB for caching the table. ref cite web title DB Cache publisher stanford url http www.almaden.ibm.com u mohan DBCache Project Stanford Talk 1 2004.pdf ref . This main memory database is many times faster than traditional disk based database system as the database completely resides in main memory and developed to be used on real time high computing data platforms. ref cite journal title THE DATABLITZ MAIN MEMORY STORAGE MANAGER ARCHITECTURE, PERFORMANCE, AND EXPERIENCE publisher sigmod proceedings url http citeseerx.ist.psu.edu viewdoc download?doi 10.1.1.33.4556&rep rep1&type pdf ref Features Table level cache granularity Operation consistent caching Transparent pass through for non cached tables Partial table caching Partial Rows or Partial Columns Recovery of cached tables from target database Bi Directional updates Auto refresh of cached tables Automatic fail over to target db Tool to check cache consistency Support for JDBC and ODBC Driver DBMS Supported MySQL Postgres Oracle DB2 Sybase References Reflist 2 External links Official website www.csqlcache.com http www.csqlcache.wordpress.com Category Database caching Category 2000s software ... more details
Multiple issues confusing December 2011 notability December 2011 unreferenced November 2011 A cache stampede is a type of cascading failure that can occur when massively parallel computing systems with caching computing caching mechanisms come under very high load. This behaviour is sometimes also called dog piling . To see how cache stampedes can occur, consider a web server which uses memcached to cache rendered pages for some period of time, to ease the load on the system. Under particularly high load to a single URL, the system remains responsive so long as the resource remains cached, with requests simply being handled by accessing the cached copy, without carrying out the expensive rendering operation. Under low load, cache misses will simply result in a single recalculation of the expensive rendering operation, and the system will then continue as before, with average load being kept very low because of the high cache hit rate. However, under very heavy load, when the cached version of that page expires, there may be sufficient concurrency in the server farm that multiple threads of execution will all attempt to regenerate the content of that page simultaneously, since none of them know that the others are doing the same at the same time. If sufficiently high load is present, this may by itself be enough to bring about congestion collapse of the system via exhausting shared resources, preventing the page from ever being completely re rendered and re cached, as every attempt to do so will time out, thus reducing the cache hit rate to zero, and keeping the system continuously in congestion collapse as it attempts to regenerate the resource forever as long as the load remains present. Category Failure Category Parallel computing Category Computer optimization Category Cache computing compsci stub ... more details
A web cache is a mechanism for the temporary storage Cache computing caching of web document s, such as webpage HTML pages and digital image images , to reduce Bandwidth computing bandwidth usage, web server server load, and perceived lag . A web cache stores copies of documents passing through it subsequent requests may be satisfied from the cache if certain conditions are met. ref cite web title ... versions of web pages. Systems Web caches can be used in various systems. A search engine may cache a website. A forward cache is a cache outside the webserver s network, e.g. on the client software s ISP ... Shinder accessdate 2011 02 27 ref A network aware forward cache is just like a forward cache but only caches heavily accessed items. ref cite web url http docs.google.com viewer?a v&q cache EkauYdDMNR8J ... proxy reverse cache sits in front of one or more Web server s and web application s, accelerating ... a network. Cache control HTTP defines three basic mechanisms for controlling caches freshness ... gives a date when the document becomes stale, and the Cache Control max age directive tells the cache ..., a cache can make a conditional request using the If Modified Since header to see if it has changed ... is usually a side effect of another request that passes through the cache. For example, if URL ... will be validated. Browser cache See also Temporary Internet Files Web browsers cache content on the client ... Proxy server Web accelerator Cache manifest in HTML5 Notes Reflist Further reading Ari Luotonen, Web ... Addison Wesley, 2001 . ISBN 0 201 61570 3 External links http www.mnot.net cache docs Caching Tutorial ... with some references to SQUID http palisade.plynt.com issues 2008Jul cache control attributes Cache control directives demystified Explanations, do s and don t DEFAULTSORT Web Cache Category HTTP Category Cache computing Category Proxy servers ar de Webcache es Cach web fr Cache web ko it Web cache vi Web caching ... more details
Infobox settlement official name Cache, Oklahoma settlement type City nickname motto Images image skyline cache oklahoma city hall.jpg imagesize 250 px image caption image flag image seal Maps image map OKMap doton Cache.PNG mapsize 250px map caption Location of Cache, Oklahoma image map1 mapsize1 map caption1 Location coordinates region US OK subdivision type List of countries Country subdivision name United States subdivision type1 Political divisions of the United States State subdivision name1 ... Cache is a city in Comanche County, Oklahoma Comanche County , Oklahoma , United States . The population ... According to the United States Census Bureau , Cache has a total area of convert 3.4 sqmi km2 ... line, including 19.5 of those under age 18 and 18.1 of those age 65 or over. Government Cache ..., resolutions, and contracts. ref http cachegov.com CodeBook ch1.pdf Cache, Oklahoma, Municipal ... CodeBook ch20.pdf Cache, Oklahoma, Municipal Code 20 1 accessed 2011 11 08 ref ref http cachegov.com CodeBook ch1.pdf Cache, Oklahoma, Municipal Code 1 20.2 accessed 2011 11 08 ref The mayor, who ... as a head of government. ref http cachegov.com CodeBook ch1.pdf Cache, Oklahoma, Municipal Code ... Okla. Stat. tit. 11, 9 105 ref At the federal level, Cache lies in Oklahoma s 4th congressional district ... 2002 Congressional Districts accessdate 2010 05 14 ref In the Oklahoma Senate State Senate , Cache ... 2011 11 08 page 5 format pdf ref References references External links http www.cacheokcoc.com Cache Chamber of Commerce http digital.library.okstate.edu encyclopedia entries C CA002.html Cache , Encyclopedia of Oklahoma History and Culture Cache PS Comanche County, Oklahoma Category Populated places in Comanche County, Oklahoma Category Cities in Oklahoma ca Cache Oklahoma es Cache Oklahoma io Cache, Oklahoma ht Cache, Oklahoma nl Cache Oklahoma pl Cache Oklahoma pt Cache Oklahoma simple Cache, Oklahoma vo Cache ... more details
Geobox Valley name Cache Valley other name category Valley etymology image Wellsville Mountains.jpg image size image caption View of the Wellsville Mountains at the southwestern end of the valley. country United States state state1 district type Counties district Cache County, Utah district1 br Franklin County, Idaho city Logan, Utah & Preston, Idaho border west Bannock Range ID , br Wellsville Mountains UT br east Bear River Mountains br south Wasatch Range parent location Cache Valley Wash br Coord 38.73 109.48 source gnis 1426257 type river region US UT scale 10000000 display inline elevation imperial elevation note length imperial 50 length note population population note lowest lowest location lowest region lowest country lowest elevation lowest elevation note lowest lat d lowest lat m ... ref name gnis gnis 1426257 Cache Valley 1426257 accessdate 2010 05 XX ref br 16010202 http cfpub.epa.gov surf county.cfm?fips code 16041 free1 type free1 The Cache Valley is an agriculture agricultural ... States indigenous peoples , Michel Bourdon discovered the Cache Valley circa 1818 during ... Bear Lake And Cache Valley url http www.idahohistory.net Reference 20Series 0244.pdf work series Reference ... Lake Valley , Jim Bridger had recommended the Cache Valley due to its relative abundance of fresh ... expedition from Camp Douglas , Utah to Cache Valley, the United States Army attacked a Shoshone ... Battle Creek in what became known as the Bear River Massacre . Communities Main Cache County, Utah Franklin County, Idaho Cache County Communities Amalga, Utah Amalga Avon, Utah Avon Benson, Utah Benson Cache Junction, Utah Cache Junction Clarkston, Utah Clarkston College Ward Cornish, Utah Cornish ... is served by the Cache Valley Transit District CVTD , a zero fare bus system. CVTD primarily ..., the Logan Cache Airport and Preston Airport. Neither airport provides commercial service however ... Landforms of Franklin County, Idaho Category Landforms of Cache County, Utah ... more details
Infobox protein family Symbol Cache 1 Name Cache domain image width caption crystal structure of mcp n and cache domains of methyl accepting chemotaxis protein from vibrio cholerae Pfam PF02743 Pfam clan CL0165 InterPro IPR004010 SMART PROSITE MEROPS SCOP TCDB OPM family OPM protein CAZy CDD Infobox protein family Symbol Cache 2 Name Cache domain type 2 image width caption crystal structure of methyl accepting chemotaxis protein from vibrio parahaemolyticus rimd 2210633 Pfam PF08269 Pfam clan CL0165 InterPro IPR013163 SMART PROSITE MEROPS SCOP TCDB OPM family OPM protein CAZy CDD In molecular biology, the cache domain is an extracellular protein domain that is predicted to have a role in small molecule recognition in a wide range of proteins, including the animal dihydropyridine sensitive voltage gated calcium channel Ca2 channel alpha 2delta subunit, and various bacteria bacterial chemotaxis receptor biochemistry receptor s. The name Cache comes from CA lcium channels and CHE motaxis receptors. This domain consists of an N terminal part with three predicted strands and an alpha helix , and a C terminal part with a strand Dyad biology dyad followed by a relatively unstructured region. The N terminal portion of the unpermuted Cache domain contains three predicted strands that could form a sheet analogous to that present in the core of the PAS domain secondary structure structure . Cache protein domain domains are particularly widespread in bacteria such as Vibrio cholerae . The animal calcium channel alpha 2delta protein subunit subunits might have acquired a part of their extracellular protein domains domains from a bacterial source. ref name pmid11084361 cite journal author Anantharaman V, Aravind L title Cache a signaling domain common to animal Ca 2 channel subunits and a class of prokaryotic chemotaxis receptors journal Trends Biochem. Sci. volume 25 issue 11 pages 535 7 year 2000 month November pmid 11084361 doi url ref The Cache domain appears to have arisen from ... more details
Cache Hill is a cinder cone in northern British Columbia , Canada . It is thought to have last erupted in the Holocene period. ref cite web url http gsc.nrcan.gc.ca volcanoes cat volcano e.php?id svb cah 036 archiveurl http web.archive.org web 20110604164829 http gsc.nrcan.gc.ca volcanoes cat volcano e.php?id svb cah 036 archivedate 2011 06 04 title Cache Hill publisher Catalogue of Canadian volcanoes ref Once used as an airdrop for food and supplies by the Geophysical Survey of Canada , hence its name, it is located north of Raspberry Pass in Mount Edziza Provincial Park . ref cite bcgnis id 9345 title Cache Hill ref See also Portal Volcanism of Canada List of volcanoes in Canada List of Northern Cordilleran volcanoes Volcanism of Canada Volcanism of Western Canada References reflist coord 57 31 54 N 130 40 15 W display title Northern Cordilleran volcanoes Interior Mountains Category Cinder cones of British Columbia Category Holocene volcanoes Category Monogenetic volcanoes Category Tahltan Highland Category Northern Cordilleran Volcanic Province Category Hills of British Columbia BritishColumbiaInterior geo stub ... more details
Infobox musical artist name Victim Cache image Victim Cache 2011 Band Photo.jpeg background group or band origin San Antonio , Texas genre Indie rock , electronic music electronic , chiptune , Surf music surf years active 2010 present instrument Electric guitar Electric Guitar , Nintendo Entertaiment System NES , Game Boy , MOS Technology SID C64 SID SammichSID , OPL3 Yamaha OPL3 SammichFM website http victimcache.com victimcache.com current members John Quarles br Tim Soderstrom Victim Cache is an electro indie rock duo founded by John Quarles and Tim Soderstrom. Currently, the duo is focused on pioneering new styles and genres with an emphasis on integrating the chiptune sound with other styles of music. The duo first met in 2001 while pursuing their undergraduate degrees in Computer Science at the University of Texas . Though they occasionally had jam sessions and would frequently discuss music, it was not until the summer of 2010 that the band was formally formed and the duo began working on their first studio album. Significance of the Name John and Tim, being both Computer Science majors in college, came up with a name fitting of their undergraduate studies and opted to name the band after the specialized CPU cache Victim cache CPU Cache of the same name. Chipsurf Pipeline The band s first album, Chipsurf Pipeline, was released on February 13th, 2012 and announced via a YouTube video ref It s Here on http www.youtube.com watch?v AIFJovcvT E&feature youtu.be YouTube ref As the name ... 18336046848 victim cache chipsurf pipeline exquisite album Chipsurf Pipeline ref Track List Tsunami ... by one of the fans of Victim Cache Tom Jenkins and was the result of song naming contest Victim Cache ... inspired workshops with http www.10bitworks.com 10BitWorks was also mentioned. ref Victim Cache Blog ... victimcache.com Band Website http www.reverbnation.com victimcache Victim Cache on ReverbNation http www.facebook.com VictimCache Victim Cache on Facebook http twitter.com VictimCache Victim Cache s Twitter ... more details
Expand Italian topic geo date June 2010 Cache Aosta Infobox settlement official name Cache Aosta other name native name nickname settlement type Frazione motto image skyline imagesize image caption image flag flag size image seal seal size image map mapsize map caption pushpin map pushpin label position bottom pushpin mapsize pushpin map caption subdivision type Country subdivision name flag Italy subdivision type1 Regions of Italy Region subdivision name1 Aosta Valley subdivision type2 Provinces of Italy Province subdivision name2 Province of Aosta Aosta subdivision type3 Communes of Italy Commune subdivision name3 government footnotes government type leader title leader name established title established date area magnitude unit pref Imperial area footnotes area total km2 area land km2 population as of 2001 population footnotes population note population total population density km2 timezone Central European Time CET utc offset 1 timezone DST Central European Summer Time CEST utc offset DST 2 latd latm lats latNS N longd longm longs longEW E elevation footnotes elevation m elevation ft postal code type postal code area code blank name blank info website footnotes Cache Aosta is a frazione in the Province of Aosta in the Aosta Valley region of Italy . coord 45 45 40 N 7 19 29 E region IT type city source kolossus itwiki display title Category Frazioni of Aosta Valley Aosta geo stub it Cache Aosta ... more details
s tomb was discovered in 1922, many small items similar to those found in the KV54 cache were found ... tomb in the Valley of the Kings , KV63 , is also thought by many to be another embalming cache. Like the KV54 cache, it contained no mummies, but its many jars contained similar materials, including ... more details
Wiktionarypar cache sexe Image Koteka.jpg thumb 250px The koteka or penis sheath is traditionally worn by male natives of some ethnic groups in New Guinea to cover their genitals. A cache sexe is an item, often a small garment, that covers its user s genitals. ref name WNMD http dictionary.reference.com browse cache sexe Cache sexe , Webster s New Millennium Dictionary of English , Preview Edition v 0.9.7 , via Dictionary.com . ref The most common style, seen in Western G string s and Japan ese Fundoshi s, has a triangle of material cloth, beaded strings, etc. attached at the corners to straps or strings around the waist and between the legs, that fasten the triangle over the genitals. It is a French loanword . ref name WNMD Cache sexes have various social intentions, including the wearer s practice of sincere or enforced modesty , legal and or customary restrictions within the context of intentional eroticism, and adding Sexual fetishism fetish istic or playfully teasing aspects to intentional eroticism. In Western cultures, for example, G string s appear as swimming attire for many erotic dancing venues, as the final state of undress, set as the polite and or legal limit or as a garment whose removal is one of many steps of a striptease , each existing to provide an increment in the viewer s sexual arousal . Examples anchor gaffe Some Man male cross dresser s use a Panties panty like clothing garment , often called a gaff , that serves to hide the male genitalia and provide a female like flat and smooth Groin crotch area. ref http www.transgenderzone.com library pr fulltext 50.htm Penis methods of concealment and obtaining a flat look for pre op male to female transgender people , Samantha Johnson, Transgender Zone. ref The koteka penis gourd s of tribal New Guinea , and cache sexes of some other tribal cultures, are often perceived by Westerners as self evidently obvious forms of sexual display, but described by their wearers as a practice providing privacy. The Brazilian ... more details
Unreferenced date July 2011 File Bear Cache.jpg thumb right A bear cache is a place designed to food storage store food outdoors and prevent bears and other animals from accessing it. They are often used by camping campers when staying in bear habitat. They can also be used by hunters for storing game food game . Designs A makeshift cache can be made by hanging the food over a tree branch using rope. To be effective, the food must be distanced from the branch, the trunk, and the ground. When a suitable tree isn t available, hanging the food over a cliff is a possible alternative. In areas popular with both people and bears, permanent caches are often built. These include poles for hanging, steel cabinet furniture cabinet s, and raised structures with removable ladders . Gallery gallery Image BearPole.jpg A metal pole with pulleys and rope Image Bear caches.jpg Metal boxes with bear proof latches Image Moose Creek Shelter Cabin cache.jpg A wooden structure with a ladder gallery See also Bear danger Bear resistant food storage container References http www.pc.gc.ca eng pn np bc gwaiihaanas visit visit9.aspx Bear Aware Food Caching Category Camping Category Food storage de Bear Pole ... more details
Infobox settlement official name Cache, Illinois settlement type Unincorporated community nickname motto Images image skyline imagesize image caption image flag image seal Maps image map mapsize map caption image map1 mapsize1 map caption1 pushpin map Illinois Location coordinates region US IL subdivision type List of countries Country subdivision name United States subdivision type1 Political divisions of the United States State subdivision name1 Illinois subdivision type2 List of counties in Illinois County subdivision name2 Alexander County, Illinois Alexander Government government footnotes government type leader title leader name leader title1 leader name1 established title established date Area unit pref area footnotes area magnitude area total km2 area land km2 area water km2 area total sq mi area land sq mi area water sq mi Population population as of population footnotes population total population density km2 population density sq mi General information timezone Central Time Zone Central CST utc offset 6 timezone DST CDT utc offset DST 5 elevation footnotes elevation m elevation ft 335 latd 37 latm 06 lats 00 latNS N longd 89 longm 15 longs 41 longEW W coordinates display Area postal codes & others postal code type postal code area code Area code 618 618 blank name Geographic Names Information System GNIS feature ID blank info 424696 ref gnis 424696 ref blank1 name blank1 info website footnotes Cache is an unincorporated community in Alexander County, Illinois Alexander County , Illinois , United States . Cache is located near the Mississippi River west of Mounds, Illinois Mounds . It is served by Illinois Route 3 . Cache once had a post office , which closed on October 5, 2002. ref cite web title Postmaster Finder Post Offices by ZIP Code url http webpmt.usps.gov pmt008.cfm publisher United States Postal Service accessdate September 25, 2011 ref References reflist Alexander County, Illinois Category Populated places in Alexander County, Illinois Category Unincorporated ... more details
Orphan date September 2011 Unreferenced date January 2008 Biologically inspired algorithms is a category of algorithms that imitate the way nature performs. This category has been quite popular, since numerous problems can be solved without rigorous mathematical approaches. Citation needed date January 2008 In this category of algorithms fall Artificial neural network s Genetic algorithm s Evolutionary algorithm s Particle swarm optimization Ant colony optimization Fuzzy logic and others DEFAULTSORT Biologically Inspired Algorithms Category Algorithms Category Optimization algorithms and methods ... more details
The Dictionary of Algorithms and Data Structures is a dictionary style reference for many of the algorithm s, algorithmic techniques, archetypal problems and data structure s found in the field of computer science . ref name dads http www.nist.gov dads Dictionary of Algorithms and Data Structures Bot generated title ref The dictionary is maintained by Paul E. Black, ref name dads and is hosted by the Software and Systems Division, Information Technology Laboratory, a part of the National Institute of Standards and Technology . ref name dads It was created in September 1998. ref name dads References reflist External links http www.nist.gov dads Dictionary of Algorithms and Data Structures Category Algorithms and data structures Category Computer science websites Category Government owned websites Category Online dictionaries ru ... more details
In analysis of algorithms , probabilistic analysis of algorithms is an approach to estimate the computational complexity of an algorithm or a computational problem. It starts from an assumption about a probabilistic distribution of the set of all possible inputs. This assumption is then used to design an efficient algorithm or to derive the complexity of a known algorithm. This approach is not the same as that of probabilistic algorithm s, but the two may be combined. For non probabilistic, more specifically, for deterministic algorithm s, the most common types of complexity estimates are the average case complexity expected time complexity Dubious date March 2011 , in which given an input distribution, the expected time of an algorithm is evaluated the almost always complexity estimates, in which given an input distribution, it is evaluated that the algorithm admits a given complexity estimate that almost surely holds. Probabilistic Algorithms In probabilistic analysis of probabilistic randomized algorithms, the distributions or averaging for all possible choices in randomized steps are also taken into an account, in addition to the input distributions. See also Amortized analysis Average case complexity Best, worst and average case Random self reducibility Category Probabilistic complexity theory Category Analysis of algorithms comp sci theory stub ... more details
The combination of quality control and genetic algorithms led to novel solutions of complex quality control design and Optimization mathematics optimization problems. Quality control is a process by which entities review the quality of all factors involved in production. Quality is the degree to which a set of inherent characteristics fulfils a need or expectation that is stated, general implied or obligatory ... algorithms are search algorithms, based on the mechanics of natural selection and natural genetics. ref Goldberg DE. Genetic algorithms in search, optimization and machine learning. Addison Wesley .... Genetic algorithms Genetic algorithms ref Holland, JH. Adaptation in natural and artificial systems. The University of Michigan Press 1975 pp.1 228. ref ref Goldberg DE. Genetic algorithms ... to genetic algorithms. The MIT Press 1998 pp.1 221. ref are robust search algorithms , that do ... quickly. Genetic algorithms have been derived from the processes of the molecular biology of the gene ... with the synonymous biological processes. Genetic algorithms have been used to solve a variety ... programming paradigm have shown us that genetic algorithms can be used for tasks as complex as the program induction. Quality control and genetic algorithms In general, we can not use algebraic ... mathematics Optimization methods based on the genetic algorithms offer an appealing alternative. Furthermore ... 1993, genetic algorithms have been used successfully to optimize and to design novel quality control procedures. ref Hatjimihail AT. Genetic algorithms based design and Optimization mathematics optimization ... procedures using genetic algorithms. In LJ Eshelman ed Proceedings of the Sixth International Conference on Genetic Algorithms. San Francisco Morgan Kauffman 1995 551 7. ref ref He D, Grigoryan A. Joint ... web Illinois Genetic Algorithms Laboratory IlliGAL http www.hcsl.com Hellenic Complex Systems Laboratory HCSL Category Quality control Category Genetic algorithms ... more details
Infobox Academic Conference history 1993 discipline Algorithms abbreviation ESA publisher Springer Science Business Media Springer Lecture Notes in Computer Science LNCS country International frequency annual The European Symposium on Algorithms ESA is an international conference covering the field of algorithms . It has been held annually since 1993, typically in a different European location in early Autumn. Like most theoretical computer science conferences its contributions are strongly peer reviewed the articles appear in proceedings published in Springer Science Business Media Springer Lecture Notes in Computer Science . History The first ESA was held in 1993 and contained 35 papers. The intended scope was all research in algorithms, theoretical as well as applied, carried out in the fields of computer science and discrete mathematics . An explicit aim was to intensify the exchange between these two research communities. In 2002, ESA incorporated the conference Workshop on Algorithms Engineering WAE . In its current format, ESA contains two distinct tracks with their own programme committees a track on the design an analysis of algorithms , and a track on engineering and applications, together accepting around 70 contributions. ALGO conferences Since 2001, ESA is co located with other algorithms conferences and workshops in a combined meeting called called ALGO . This is the largest European event devoted to algorithms, attracting hundreds of researchers. Other events in the ALGO conferences include the following. WABI , the Workshop on Algorithms in Bioinformatics , was part of ALGO in 2001 2006 and 2008. WAOA , the Workshop on Approximation and Online Algorithms , has been part of ALGO in 2003 2011. ATMOS , the Workshop on Algorithmic Approaches for Transportation Modeling, Optimization, and Systems , formerly the Workshop on Algorithmic Methods and Models for Optimization of Railways , has been part of ALGO in 2003 2006 and 2008 2009. ATMOS was a co located ... more details
italictitle Algorithms Data Structures Programs ref cite book publisher Prentice Hall date 1976 title Algorithms Data Structures Programs last Wirth first Niklaus language English id 0130224189 isbn 978 0 13 022418 7 url http portal.acm.org citation.cfm?id 540029 ref is a 1976 book written by Niklaus Wirth covering some of the fundamental topics of computer programming , particularly that algorithm s and data structure s are inherently related. For example, if one has a sorted list one will use a search algorithm optimal for sorted lists. The book was one of the most influential computer science books of the time and, like Wirth s other work, extensively used in education Fact date March 2009 . The Turbo Pascal compiler written by Anders Hejlsberg was largely inspired by the Tiny Pascal compiler in Niklaus Wirth s book. Chapter outline Chapter 1 Fundamental Data Structures Chapter 2 Sorting algorithm Sorting Chapter 3 Recursion Recursive Algorithms Chapter 4 Dynamic Information Structures Chapter 5 Language Structures and Compilers Appendix A the ASCII character set Appendix B Pascal programming language Pascal syntax diagrams References reflist External links http www.inf.ethz.ch personal wirth books AlgorithmE0 ETH Zurich N. Wirth Books Compilerbau Algorithms Data Structures Programs Category Computer programming books Category History of computing book stub cs Algoritmy datov struktury programy ... more details
In computing , a cache oblivious algorithm or cache transcendent algorithm is an algorithm designed to take advantage of a CPU cache without having the size of the cache or the length of the cache line s, etcetera as an explicit parameter. An optimal cache oblivious algorithm is a cache oblivious algorithm that uses the cache optimally in an asymptotic notation asymptotic sense, ignoring constant factors . Thus, a cache oblivious algorithm is designed to perform well, without modification, on multiple machines with different cache sizes, or for a memory hierarchy with different levels of cache having different sizes. The idea and name for cache oblivious algorithms was conceived by Charles E ... Institute of Technology in 1999. Optimal cache oblivious algorithms are known for the Cooley ... sense. The goal of cache oblivious algorithms is to reduce the amount of such tuning that is required. Typically, a cache oblivious algorithm works by a recursion recursive divide and conquer algorithm ... subroutine calls. Most cache oblivious algorithms rely on a divide and conquer approach ... Cache Oblivious Algorithms . Masters thesis, MIT. 1999. M. Frigo, C.E. Leiserson, H. Prokop, and S. Ramachandran. Cache oblivious algorithms. In Proceedings of the 40th IEEE Symposium on Foundations ... compgeom.com piyush Piyush Kumar . http www.compgeom.com co chap chap.pdf Cache Oblivious Algorithms .... Because these algorithms are only optimal in an asymptotic sense ignoring constant factors ... size that fits into cache, regardless of the cache size. For example, an optimal cache oblivious ... to be multiplied, multiplying the submatrices in a depth first fashion. Idealized cache model Cache oblivious algorithms are typically analyzed using an idealized model of the cache, sometimes called the cache oblivious model . This model is much easier to analyze than a real cache s characteristics ... within a constant factor of a more realistic cache s performance. In particular, the cache oblivious ... more details
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