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| | Abstract structure |
 | | Abstract structures are studied in philosophy, computer science and mathematics. | | | Because chess is an abstract structure, it is possible (and not unusual among chess masters) to play a game of chess that is entirely mental. | | | The rules of chess are an abstract structure, because their definition is independent of any particular chess set or board or chess notation. |
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http://hallencyclopedia.com/Abstract_structure
(741 words)
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| | Abstract data structure - Wikipedia, the free encyclopedia |
| | Selection of an abstract data structure is crucial in design of efficient algorithms and in estimating their computational complexity, while selection of concrete data structures is important for efficient implementation of algorithms. | | | In theoretical computer science, an abstract data structure is an abstract storage for data defined in terms of the set of operations to be performed on data and computational complexity for performing these operations, regardless the implementation in a concrete data structure. | | | The names of many abstract data structures (and abstract data types) match the names of concrete data structures. |
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http://en.wikipedia.org/wiki/Abstract_data_structure
(169 words)
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| | Data structure - Wikipedia, the free encyclopedia |
| | In computer science, a data structure is a way of storing data in a computer so that it can be used efficiently. | | | A data structure can be viewed as an interface between two functions or as an implementation of methods to access storage that is organized according to the associated data type. | | | After the data structures are chosen, the algorithms to be used often become relatively obvious. |
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http://en.wikipedia.org/wiki/Data_structure
(469 words)
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| | ENGR 691 (Software Architecture) Lecture Notes on Data Abstraction, Spring 2004 |
| | By approaching the design of the collection as an abstract data structure, we have limited the parts of the program that must be changed to the small group of procedures that used the array directly; other parts of the program are not affected. | | | In data abstraction, the focus is on the problem's data rather than the tasks to be carried out. | | | An abstract data structure is a module consisting of data and operations. |
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http://john.cs.olemiss.edu/~hcc/softArch/notes/dataAbstraction.html
(6371 words)
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| | Data Structure Management in a Data Flow Computer System (ResearchIndex) |
| | Abstract: DATA STRUCTURE MANAGEMENT IN A DATA FLOW COMPUTER SYSTEM by Bhaskar Guharoy Submitted to the Department of Electrical Engineering and Computer Science on May 28, 1985 in partial fulfillment of the requirements for the Degree of Master of Science ViM is an experimental computer system being developed at MIT for supporting functional programming. | | | The execution mechanism of the computer is based on data flow. | | | Data Structure Management in a Data Flow Computer System (1985) |
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http://citeseer.ist.psu.edu/guharoy85data.html
(708 words)
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| | Dictionary of Algorithms and Data Structures |
| | Data Structures and Algorithms is a wonderful site with illustrations, explanations, analysis, and code taking the student from arrays and lists through trees, graphs, and intractable problems. | | | This is a dictionary of algorithms, algorithmic techniques, data structures, archetypical problems, and related definitions. | | | We do not include algorithms particular to business data processing, communications, operating systems or distributed algorithms, programming languages, AI, graphics, or numerical analysis: it is tough enough covering "general" algorithms and data structures. |
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http://www.nist.gov/dads
(594 words)
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| | data structure - definition of data structure by the Free Online Dictionary, Thesaurus and Encyclopedia. |
| | data structure - (computer science) the organization of data (and its storage allocations in a computer) | | | computer, computing device, computing machine, data processor, electronic computer, information processing system - a machine for performing calculations automatically | | | All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. |
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http://www.thefreedictionary.com/data+structure
(163 words)
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| | [No title] |
| | Data encapsulation simplifies modification by isolating changes to the implementation and behavior of an abstract data type. | | | To perform encapsulation, a programmer must understand how the data structure is used in the code, identify abstract operations performed on the data structure, and choose concrete expressions to be made into functions. | | | One common restructuring action is to create a new abstract data type by encapsulating an existing data structure. |
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http://www-cse.ucsd.edu/users/wgg/Abstracts/robert.html
(244 words)
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| | DATA STRUCTURES |
| | structure of data, for the term is sometime used with that meaning in mind. | | | For example, there are many different algorithms for sorting an array of data items. | | | In a program, such as a C, Pascal, or Java program, a data structure type is used as a template for the manufacture of specific data structures of that type, (by allocating the right number and size of memory receptacles). |
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http://pages.cpsc.ucalgary.ca/~bradley/Lec01Cpsc331.htm
(955 words)
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| | Abstract Data Types |
| | Abstract data types are a way of dealing with specific data structures without losing sight of the problem. | | | All too often the way a particular data structure is encoded in software (for example as an array) is scattered throughout the source code. | | | The data structure is PRIVATE to the MODULE - that is NOTHING apart from the access routines is allowed to alter or read the data structure. |
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http://www.lightsoft.co.uk/PD/rob/rp_abstrdata.html
(359 words)
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| | CTAC 2001 Abstract: An MCST-Based Data Structure for Nearest-Neighbour Matching - Joselito Chua |
| | Data warehouses and multimedia databases, for example, require efficient methods for finding the closest match to a given query item with respect to a distance function. | | | Although the performance of the algorithm has not yet been verified analytically, our experiments on vector quantisation coding of images suggest that the use of the data structure leads to algorithms which can often find a nearest-neighbour in O(log n) distance function calculations. | | | The results on our test data are comparable to many of the techniques proposed recently. |
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http://conference.maths.uq.edu.au/ctac2001/abstracts/JoselitoChua1.html
(154 words)
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| | 3 Abstract Data Types |
| | Data: This part describes the structure of the data used in the ADT in an informal way. | | | To represent a complex number it is necessary to define the data structure to be used by its ADT. | | | To sum up, abstraction is the structuring of a nebulous problem into well-defined entities by defining their data and operations. |
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http://www.zib.de/Visual/people/mueller/Course/Tutorial/node4.html
(1998 words)
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| | Course Description and Info |
| | Abstract data structures such as lists, stacks, queues and trees will be studied as well as programming techniques using recursion and pointers. | | | This class will be oriented toward the thoughtful use of data structures to solve problems in programming. | | | In the first part of the course, which will be primarily in the classroom, several abstract data types will be introduced using problem solving learning techniques. |
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http://www.conncoll.edu/academics/departments/comsci/com212/description.html
(767 words)
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| | The List Abstract Data Structure |
| | An Abstract Data Type is a type which is defined in terms of the operations possible on it, and not in terms of how it is represented in the computer. | | | When programming in any language, keeping to the principal of abstract data types is recommended, but it can be up to the programmer to ensure it. | | | It is important to distinguish between an abstract list, which is simply an object on which you can do the head, tail, cons and isempty operations on, and a linked list which is one way of implementing such an object. |
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http://www.dcs.qmw.ac.uk/~mmh/ItP/resources/lists.html
(2530 words)
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| | Jenk's abstract |
| | The main data structure for text indexing problem, the suffix tree, allows fast searching in the text; however it is inherently static in the sense that if the text is modified, the suffix tree has to be built from scratch. | | | An text indexing data structure enables finding all occurances of a pattern in the input text. | | | The only existing data structure for dynmamic text indexing is the border tree of Gu, Farach and Beigel. |
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http://www.cs.umd.edu/users/samir/abstracts/jenk.html
(205 words)
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| | Abstract Data Types |
| | At the level of the tcl language string (together with all the commands which manipulate strings) is an abstract data type, since it defines a type of data which you can operate on using the string interface commands, but you can't tell from the tcl language whether it's null-terminated or length-prepended. | | | Lars H: Given a range of implementations of a data structure, the right question is probably rather what the computational complexities of standard operations are for these implementations. | | | Array is an abstract data type, since you can access its contents with [array get] or using (), but you can't tinker with the hash collision tables which underly the array representation. |
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http://wiki.tcl.tk/11450
(2992 words)
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| | [No title] |
| | Usually, the server has applications and data storage that are shared in common by multiple computer users. | | | Abstract Syntax Notation One is also referred to as ASN.1. | | | A language used to describe data types, data models, and managed objects in HP Opencall SEP. The Data Definition Language (DDL) allows users of the HP Opencall SEP to define both the database schema and data types. |
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http://docs.hp.com/hpux/onlinedocs/2085/temp/oc_glossary_18_June_2002.html
(10056 words)
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| | Method of managing a data structure for concurrent serial and parallel revision of a work (US5870764) |
| | A data structure and associated data management methods for highly flexible storage of data for a wide variety of application programs. | | | Efficient data base access using a shared electronic store in a multi-system environment with shared disks | | | Representation of collaborative multi-user activities relative to shared structured data objects in a networked workstation environment |
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http://www.delphion.com/details?pn=US05870764__
(930 words)
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| | Seminar Abstract |
| | The proposed approach is shown to be effective for solving problems related to efficiency of handling data updates, accuracy of data mining results, processing input transactions, and answering user queries. | | | In this presentation, we motivate the need for an incremental data mining approach based on data structure called the item-set tree. | | | The Item-set Tree: A Data Structure for Data Mining |
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http://www.csc.lsu.edu/~seminar/abst.talk.1999.11.19.html
(155 words)
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| | abstract data type: Information From Answers.com |
| | For example, the above example could be written in C using a struct and an accompanying set of data structures using arrays or linked lists to store the entries; however, since the constructor function returns an abstract handle, the actual implementation is hidden from the user. | | | It may refer to an object class in object-oriented programming or to a special data type created in traditional, non-OOP languages. | | | The number of ways a given ADT can be implemented depends on the programming language. |
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http://www.answers.com/topic/abstract-data-type
(911 words)
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| | abstract data type |
| | Note: Since the data values and operations are defined with mathematical precision, rather than as an implementation in a computer language, we may reason about effects of the operations, relations to other abstract data types, whether a program implements the data type, etc. | | | Definition: A set of data values and associated operations that are precisely specified independent of any particular implementation. | | | Go to the Dictionary of Algorithms and Data Structures home page. |
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http://www.nist.gov/dads/HTML/abstractDataType.html
(223 words)
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| | object-oriented programming from FOLDOC |
| | Operations on the data can _only_ be performed via these methods, which are common to all objects that are instances of a particular "class". | | | (OOP) The use of a class of programming languages and techniques based on the concept of an "object" which is a data structure (abstract data type) encapsulated with a set of routines, called "methods", which operate on the data. | | | Thus the interface to objects is well defined, and allows the code implementing the methods to be changed so long as the interface remains the same. |
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http://lgxserver.uniba.it/lei/foldop/foldoc.cgi?Object-oriented+programming
(293 words)
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| | data structure - OneLook Dictionary Search |
| | noun: (computer science) the organization of data (and its storage allocations in a computer) | | | data structure : Free On-line Dictionary of Computing [home, info] | | | data structure : WordNet 1.7 Vocabulary Helper [home, info] |
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http://www.onelook.com/cgi-bin/cgiwrap/bware/dofind.cgi?word=data+structure
(183 words)
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| | Creating data structures with the Java Collections Framework |
| | But you'll still find yourself creating a new data structure when you need customized features, high performance, or even operations that are not supported by the standard implementations. | | | The Collections Framework relies on a set of abstract data structures represented by interfaces that describe them based on the operations they support, from the most generic to the most specialized. | | | Each skeletal implementation is an abstract base class that implements a given interface. |
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http://builder.com.com/5100-6370-1046191.html
(688 words)
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| | CDIC - Abstract title1 |
| | We present methods for constructing cache-oblivious algorithms and data structures. | | | Then we show new methods for designing memory efficient cache-oblivious algorithms for dynamic and irregular problems, such as data structures. | | | Cache-oblivious algorithms run efficiently on a hierarchical memory, even though they completely avoid any memory-specific parameterization (such as cache block sizes or access times). |
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http://www.bnl.gov/csc/seminars/abstracts/a_bender.htm
(97 words)
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| | Publication (Lutz Kettner): Designing a Data Structure for Polyhedral Surfaces: Abstract |
| | Software design solutions are presented for combinatorial data structures, such as polyhedral surfaces and planar maps, tailored for program libraries in computational geometry. | | | A design for polyhedral surfaces in a halfedge data structure is developed following the generic programming paradigm known from the Standard Template Library STL for C++. | | | Design issues considered are flexibility, time and space efficiency, and ease-of-use. |
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http://www.mpi-sb.mpg.de/%7Ekettner/pub/polyhedron_cgta_99_a.html
(123 words)
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| | [Chapter 22] 22.6 Construct Abstract Data Types (ADTs) |
| | An abstract data type is a collection of information and operations that act on that information. | | | All the modules you build to represent your abstract data structure should operate with the same level of data. | | | Yet the concept of an abstract data type, or ADT, is something we apply -- or should apply -- in every single one of our application efforts, sometimes without even realizing that we are doing it. |
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http://dylix.mine.nu:100/oreilly/oracle/prog2/ch22_06.htm
(2118 words)
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| | Abstract: XML Schema Directory: A Data Structure for XML Data Processing |
| | The proposed algorithms for maintaining the XSD structure do not require reorganisation and they may be efficiently used in practice. | | | The aim of XSD is to accelerate query processing by quickly finding the relevant set of XML documents for a given query. | | | XML schema similarity is introduced as a way to determine the relevance among XML documents, which belong to the same knowledge category. |
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http://infoweb.jrc.it/kotsakis/EN/publications/abstracts/wise00-abs.html
(212 words)
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| | Twenty-second International Unicode Conference - Abstract |
| | This structure is used throughout the ICU 2.1 library, both in the C/C++ and Java versions. | | | In response to this, ICU developed a new data structure called a folded-trie, or UTrie. | | | Folded Trie: Efficient Data Structure for all of Unicode |
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http://www.unicode.org/iuc/iuc22/a325.html
(351 words)
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| | Data Structures and Other Objects Using C++ |
| | It's important to realize that trees are but one possible way to implement a Dictionary, and the actual explanation of "What is a Dictionary?" will not refer to trees at all. | | | In many ways it is like other ADTs that you have seen, such as a bag which contains a collection of items. | | | We"ll start by explaining what a Dictionary is, without any reference to trees. |
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http://www.cs.colorado.edu/~main/javasupp/JAVA09B_files/slide0002.htm
(170 words)
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| | Abstract Data Types |
| | Whether the list is implemented as singly-linked, doubly-linked or with a header is irrelevant. | | | An abstract data type (ADT) is an organized collection of information and a set of operations used to manage that information | | | Definition: A mathematically specified collection of data-storing entities with operations to create, access, change, etc. instances |
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http://walidonline.itgo.com/adt.htm
(167 words)
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| | A Data Structure for Artificial Terrain Generation (Abstract) |
| | This paper addresses the problems of maintaining the consistency of spatial data under recursive subdivision algorithms for artificial terrain generation. | | | A Data Structure for Artificial Terrain Generation (Abstract) | | | A new edge-based data structure is presented which provides for the efficient use and consistent storage of spatial data under these conditions. |
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http://www.eg.org/EG/CGF/Volume13/Issue1/v13i1pp37-48_abstract.html
(148 words)
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| | MAGNETIC INSPECTION OF METAL STRUCTURE, MECHANICAL PROPERTIES AND THEIR DEGRADATION IN SERVICE |
| | For surface-hardened products, due to different stability of the layers differing in their magnetic properties, one can achieve perfectly trustworthy inspection of the depth and hardness of the hardened layer, since the action of electromagnetic fields first ruins the remanent magnetism of soft magnetic components and then that of harder ones. | | | The methods for analysing the stability of magnetic states against elastic deformations have enabled us to apply this principle to developing various sensors memorising external attacks and to creating methods for evaluating microstresses and fatigue damage accumulation in structure elements. | | | This problem can be solved by several methods. |
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http://www.ndt.net/abstract/wcndt96/data/340.htm
(736 words)
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| | Control flow graph |
| | An anciliary data structure depicting the dominator relationships. | | | There is an arc from Block M to Block N if M is an immediate dominator of N. This graph is a tree, since each block has a unique immediate dominator. | | | It is an abstract representation of a procedure or program, maintained internally by a compiler. |
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http://www.termsdefined.net/co/control-flow-graph.html
(657 words)
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| | Layered Data Representation for Visual Simulation of Terrain Erosion |
| | The simulation has been done on artificial data as well as on real data from Mars. | | | We demonstrate that the classical algorithm simulating thermal erosion [10] can run on this representation and we can even simulate some new properties. | | | Abstract: New data structure for visual simulation of 3D terrains is introduced. |
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http://csdl2.computer.org/persagen/DLAbsToc.jsp?resourcePath=/dl/proceedings/&toc=comp/proceedings/sccg/2001/1215/00/1215toc.xml&DOI=10.1109/SCCG.2001.945341
(232 words)
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| | Profile Search Result Reference (IM: ACI) |
| | In subsequent calls to the ColorSync Manager functions, your application passes the search result reference to the function to update the search result list, dispose of it, open a reference to a profile at a specific position in the list, or to obtain the file specification for a profile in the list. | | | A search result consists of a list of profiles matching certain search criteria. | | | The ColorSync Manager defines an abstract private data structure of type |
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http://developer.apple.com/dev/techsupport/insidemac/AdvancedColor/AdvancedColor-263.html
(135 words)
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| | Comp210 |
| | Design templates -- be able to generate one from your data definition, especially if the data definition is that of an abstract data structure. | | | Be able to write functions on compound data structures. | | | Data definitions -- be able to write them for both concrete and abstract data structures. |
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http://www.owlnet.rice.edu/~comp210/03fall/Exams/exam1n2k.htm
(294 words)
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| | Infinity Plus One - My Java Page |
| | I changed the Ads and AdsFrame classes to make it into an applet. | | | I originally developed Abstract Data Structure Demonstrator as an application for Independent study at UCF. |
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http://home.cfl.rr.com/infinityplusone/java.htm
(475 words)
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| | [No title] |
| | The ejected mass of volcanic-ash particles estimated from radar data reached the maximum 30 minutes after the occurrence of the pyroclastic flow. | | | Abstract Structure and evolution of the ash cloud derived from Unzen pyroclastic flow at 18:23, May 21, 1993 was studied using a weather-radar data. | | | A case study of structure and evolution of the ash cloud derived from Unzen pyroclastic flow using radar data. |
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http://hakone.eri.u-tokyo.ac.jp/kazan/Vol/Vol.41.4/arao.txt
(184 words)
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| | [No title] |
| | We will consider this data a generic object. | | | Notice the node in a binary tree has basically the same structure as a node in a linked list. | | | Binary Tree 3-Child Tree (each node can have at most 2 children) (at most 3 children per node) N-Child Tree (any number of children per node) Node structure A node contains a piece of the trees data and a pointer to each node below it. |
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http://www.cis.syr.edu/~sc504c/Lectures/Lectur6/Trees.doc
(397 words)
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| | Cen/tc 251 (SMEALSearch) - Pal,Rangaswamy,Giles,Debnath |
| | It is possible to map from an abstract ASN.1 definition of a complex data structure to any existing or, in principal, future representation scheme. | | | Syntax Notation (ASN.1), an ISO standard, is available for specifying a data structure in abstract form. | | | However, the use of ASN.1 for specification of requirements does not imply the need to use it for implementation. |
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http://smealsearch.psu.edu/94547.html
(265 words)
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| | Haim's abstract? |
| | Redundant binary counters were studied by Clancy and Knuth in 1977 and led to the discovery of finger search trees. | | | In this talk I will describe these counters and some of the data structures in which we use them. | | | In particular we use them to design purely functional catenable double-ended queues that have O(1) worst-case time bound for each operation, purely functional finger search trees, and priority queues. |
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http://www.cs.umd.edu/users/samir/abstracts/haim.html
(77 words)
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| | Find in a Library: Abstract data types in standard ML |
| | WorldCat is provided by OCLC Online Computer Library Center, Inc. on behalf of its member libraries. | | | Abstract data types in standard ML by Rachel Harrison | | | Find in a Library: Abstract data types in standard ML Search: |
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http://worldcatlibraries.org/wcpa/ow/78cff4d91e51e22ba19afeb4da09e526.html
(57 words)
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| | BEA SNMP Agent MIB Reference TM (SMEALSearch) - Pal,Rangaswamy,Giles,Debnath |
| | Syntax Notation One (ASN.1) OBJECT TYPE macro, which provides the formal model for defining objects and tables of objects in the MIB. | | | The following keywords are used to define a MIB object: Syntax Defines the abstract data structure corresponding to the object type. | | | The SMI purposely restricts the ASN.1 constructs that can be used to promote simplicity. |
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http://smealsearch.psu.edu/85766.html
(245 words)
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