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Topic: Structural pattern


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In the News (Thu 26 Nov 09)

  
  Pattern recognition - Wikipedia, the free encyclopedia
The patterns to be classified are usually groups of measurements or observations, defining points in an appropriate multidimensional space.
A complete pattern recognition system consists of a sensor that gathers the observations to be classified or described; a feature extraction mechanism that computes numeric or symbolic information from the observations; and a classification or description scheme that does the actual job of classifying or describing observations, relying on the extracted features.
Statistical pattern recognition is based on statistical characterisations of patterns, assuming that the patterns are generated by a probabilistic system.
en.wikipedia.org /wiki/Pattern_recognition   (560 words)

  
 Structural pattern - Wikipedia, the free encyclopedia
In Software Engineering, Structural Design Patterns are Design Patterns that ease the design by identifying a simple way to realize relationships between entities.
Adapter pattern: 'adapts' one interface for a class into one that a client expects
Composite pattern: a tree structure of objects were every object has the same interface
en.wikipedia.org /wiki/Structural_pattern   (149 words)

  
 Dr. Dobb's | Automating Design-Pattern Identification | July 22, 2001
Pattern solutions are defined and represented by a general structure of the classes in the pattern, and an assignment of responsibilities to the participating classes.
Therefore, the detection of a composite pattern hinges on the detection of this loop in branches of class hierarchies.
However, it differs from the Composite pattern in the cardinality of the aggregation relationship from the child class to parent class, which is 1-to-1 for the Decorator pattern.
www.ddj.com /184410578   (3186 words)

  
 Flyweight pattern - Wikipedia, the free encyclopedia
In the flyweight pattern, the data has no pointers to the data type methods, because these would consume too much space.
One classic example of a flyweight pattern are the characters stored in a word processor.
As you can imagine, a large document with this data structure would bloat the memory footprint of the word processor.
en.wikipedia.org /wiki/Flyweight_pattern   (336 words)

  
 Structural Pattern Recognition of Land Use
In general, the field of graphical structural pattern recognition is concerned with the development of computational approaches which can derive, represent and analyse both the intrinsic structure of a series of entities or pattern primitives, as well the extrinsic relationships which exit between them.
The pattern features derived for each region pattern primitive may take a wide variety of forms and measurement scales, although in general, they tend to describe the morphology of regions (e.g., their area, perimeter, compactness etc) as well as the spatial relationships which exist between them (e.g., adjacency, containment, distance and direction etc).
Furthermore, by combining this structural pattern recognition system with series of approaches more commonly associated with statistical pattern recognition, it has been shown that is possible to obtain a quantitative measurement on the degree of structural separability which exists between a series urban land use pattern classes using the structural information derived.
www.geocomputation.org /1998/43/gc_43.htm   (4199 words)

  
 Daylight Theory: Fingerprints
Structural keys vary widely in size, from a few tens or hundreds of bits to several thousand bits (in a single database, structural keys are usually all the same size since they all must represent the same thing).
Unlike a structural key with its pre-defined patterns, the patterns for a molecule's fingerprint are generated from the molecule itself.
Structural keys are usually very "sparse" (mostly zeros) since a typical molecule has very few of the patterns that the structural key's bits represent.
daylight.daylight.com /dayhtml/doc/theory/theory.finger.html   (5117 words)

  
 Generalized Feature Extraction for Structural Pattern Recognition in Time-Series Data   (Site not responding. Last check: 2007-10-21)
Structural pattern recognition systems are difficult to apply to new domains because implementation of both the description and classification tasks requires domain knowledge.
Consequently, applications of structural pattern recognition have been primarily restricted to domains in which the set of useful morphological features has been established in the literature (e.g., speech recognition and character recognition) and the syntactic grammars can be composed by hand (e.g., electrocardiogram diagnosis).
The classification accuracies achieved using the features extracted by the structure detectors were consistently as good as or better than the classification accuracies achieved when using the features generated by the statistical feature extractors, thus demonstrating that the suite of structure detectors effectively performs generalized feature extraction for structural pattern recognition in time-series data.
www.cs.cmu.edu /~bobski/pubs/tr01108.html   (486 words)

  
 The Bridge Design Pattern   (Site not responding. Last check: 2007-10-21)
Structurally this pattern is the same as the Bridge pattern; however, the Strategy pattern allows for interchangeability of the algorithms while the Bridge pattern would not change its implementation instance with its abstraction.
Obviously, this design pattern differs with the Bridge pattern in that the Template Method pattern only defines structural design by means of predefining the sequence of operations in a method of the abstract class.
Whereas, the Bridge pattern is classified as a structural pattern having the compositional elements in its class structure.
pages.cpsc.ucalgary.ca /~phong/courses/SENG609.04/Bridge.htm   (2131 words)

  
 Pattern Representation and the Future of Pattern Recognition
The majority of researchers, however, have adopted the second point of view, and the theory of pattern recognition is now understood as a theory of risk minimization for a special class of decision rules.
In those days it appeared that the pattern recognition problem carried within itself the beginnings of some new idea, which was in no way based on the system of old concepts; researchers wanted to find new formulations, not to reduce the problem to already known mathematical schemes.
During the ‘70s and ‘80s, the newly emerged syntactic/structural subfield of pattern recognition was imbued with a central role of non-numeric forms of pattern representation.
www.cs.unb.ca /~goldfarb/conf/ICPR-2004_Workshop.html   (1276 words)

  
 IAPR-TC2: STRUCTURAL & SYNTACTICAL PATTERN RECOGNITION
Pattern Recognition (PR) the journal of the Pattern Recognition Society.
Structural, Syntactic, and Statistical Pattern Recognition Joint IAPR International Workshops SSPR 2002 and SPR 2002, Windsor, Ontario, Canada, August 6-9, 2002.
Structural Pattern Analysis Proceedings of the third SSPR Workshop.
grfia.dlsi.ua.es /tc2/index.php?id=educational   (488 words)

  
 GoF Design Pattern::Structural::Bridge   (Site not responding. Last check: 2007-10-21)
The bridge pattern is useful when there is a hierarchy of abstractions and a corresponding hierarchy of implementations and we want to avoid permanent binding of the abstractions and implementations.
The bridge pattern separates the classes that represent the abstraction from the classes that provide the implementation for the abstraction.
The bridge pattern has a similar structure to an object adapter, but the intents are different.
pages.cpsc.ucalgary.ca /~chi/SENG/609_04/BridgeSummary.html   (410 words)

  
 Anything Else   (Site not responding. Last check: 2007-10-21)
With these results, it was now possible to observe how the core distortion collapse affected all other structural or soft tissue problems and painful symptoms throughout the rest of the body, and to begin treating them by addressing the core distortion and its direct effect on the area of client’s symptoms.
Now, all the soft tissue that was holding the old pattern at all levels resisting the move to the new pattern of balance needed to be released.
I came to call this a structural collapse syndrome due to its effect on the overall structure and the inability of the sacrum and iliums to stabilize to maintain structural integrity.
home.earthlink.net /~posturenurse/index_files/Page608.htm   (1995 words)

  
 [No title]
Pattern maps and category pattern maps are used to show a particular part of the lexicon that results from GoF and POSA 1 catalog integration.These principles derive from a theoretical background and can be structured in a pattern style.
To facilitate pattern or pattern sequences searches, similarities and differences must be organized so that those more general, relevant and central can be found at higher levels of abstraction and categorization since designers and apprentices might naturally prefer to start with more enclosing categorization elements first.
We need to identify pattern sequences and their starting points, but they are not enough, because most of the time, we first need to understand the problem category we face and this is what pattern categories and design domains entail.
hillside.net /patterns/EuroPLoP/Submissions/CalderonA.doc   (4237 words)

  
 [No title]   (Site not responding. Last check: 2007-10-21)
Patterns are used to document frameworks They represent ‘ways’ of using the classes in a framework.
In this sense, design patterns may be thought of as representing dynamics whereas frameworks represent static, structural relationships In documenting a Pattern it is important to cover: structural aspects (eg.
The OBSERVER Pattern This is a behavioural pattern.
www.infj.ulst.ac.uk /~cbcb23/MSc-patterns.ppt   (594 words)

  
 Definitions
Structural pattern matching, at the other end, attempts to match a particular form to a mathematical expression.
Often the pattern variables are allowed to carry typing information, as it is shown in the last line.
Except for the simplest structural matching, all the matching problems are very difficult and in many cases unsolvable.
www.inf.ethz.ch /personal/gonnet/CAII/HeuristicAlgorithms/node32.html   (283 words)

  
 [No title]
In pattern Structural Validation: Width and Height elements should be balanced In pattern Structural Validation: This image does not have a url In pattern Structural Validation: A textinput must have a title.
It is used to label the submit button for the field In pattern Structural Validation: A textinput must have a name.
It is used to identify the input element in the form In pattern Structural Validation: A textinput must have a link.
home.freeuk.net /leigh.dodds/rss_validator/validator.xsl   (105 words)

  
 Kelly K. Caylor » Spatial Ecology
The spatial pattern of vegetation is both a cause and effect of variation in resource availability in semiarid ecosystems.
Clarification of the coupled ecohydrological mechanisms that determine the spatial pattern and structural characteristics of vegetation in water-limited landscapes remains a vexing problem in both hydrological and vegetation science.
The coupling of individual pattern to landscape-scale distribution of soil water balance allows for investigations into the role of tree density, average canopy size, and the lateral extension of tree root systems on the spatio-temporal patterns of soil moisture dynamics, plant water uptake, and plant stress in a range of open woodland ecosystems.
www.indiana.edu /~ecohydro/index.php/archives/category/research/spatial-ecology   (803 words)

  
 CISC 859 Pattern Recognition
To apply statistical pattern recognition, we choose a set of features and characterize the distribution of feature values for each pattern class; we then classify an unknown pattern based on its observed feature values.
Structural pattern recognition, a newer branch of pattern recognition, constructs descriptions of internal pattern structure.
Syntactic pattern recognition (one form of structural pattern recognition) uses grammatical techniques to describe and analyze the structure of a pattern.
www.cs.queensu.ca /home/blostein/859.html   (803 words)

  
 ARTSEDGE: Landscapes of the Mind
The devices, structural patterns, and kinetic symbols Graham uses to capture the haunting statements of Emily Bronte's memories—which are the structural control of the choreography—offer a provocative study in the way art can articulate the telescopic lens of memory.
The dominant structural pattern of Deaths and Entrance is memory—the stream-of-consciousness of Emily Bronte as she struggles with enclosing madness, gains self-awareness, and restores self-control.
The overriding structural design is of three archetypal stages of love—adolescent, erotic, and mature—each experienced in stages of and in intermittent pulses within the heart and mind of one (archetypal) woman.
www.artsedge.kennedy-center.org /content/3779   (5439 words)

  
 Discussion 2 - Nirav Shah   (Site not responding. Last check: 2007-10-21)
Structural patterns many times use inheritance and interfaces to get this new functionality.
Examples of structural patterns include the Adapter pattern, Bridge pattern, Composite pattern, Decorator pattern, and the Façade pattern.
Unlike the structural pattern, which uses different objects to combine into a larger structure, the behavioral pattern utilizes algorithms and assigns responsibilities to assorted objects.
coweb.cc.gatech.edu /cs2340/4600   (528 words)

  
 Bridge Patterns in C#   (Site not responding. Last check: 2007-10-21)
Bridge Pattern is commonly known as Handle/Body idiom in C++ community.
This pattern is used for decoupling an abstraction from its implementation so that the two can vary independently.
The collaboration between the objects in this pattern is such that the client’s requests are forwarded by the Abstraction to the Implementor through this reference.
www.c-sharpcorner.com /Language/BridgePatternsinCSRVS.asp   (439 words)

  
 4.3.2 Writing color force field files (CFF)
There is no restriction on the number of patterns that can be associated with a user defined type.
The position in Cartesian space of the PATTERN is taken as the average of the coordinates of the atoms that match the SMARTS pattern.
By writing a SMARTS pattern in recursive notation the location of the PATTERN will be taken as the atomic position of the first matching atom in the pattern.
www.eyesopen.com /docs/html/pyshape/node19.html   (355 words)

  
 Statistical VS Structural Pattern Recognition   (Site not responding. Last check: 2007-10-21)
The statistical method is basically what the name says; it’s based on statistics and probability.
This method is appealing because of the description it can give a user [5] on how and why it classified something the way it did.
The downside of this approach though is implementing a system to deal with noisy patterns [5].
homepages.ius.edu /MATDCLAR/SvsS.html   (109 words)

  
 Discussion 2 - Vishal Patel   (Site not responding. Last check: 2007-10-21)
With the creational pattern there is no need for you to instantiate objects directly, which allows you to decide when to create objects.
One example of the structural pattern is the adapter pattern, which allows classes with incompatible interfaces work together.
This pattern is when you have only one instance of the same object throughout the life of the program.
coweb.cc.gatech.edu /cs2340/4590   (270 words)

  
 SYNTACTIC AND STRUCTURAL PATTERN RECOGNITION — THEORY AND APPLICATIONS
It presents, at one end, fundamental concepts and notations developed in syntactic and structural pattern recognition and at the other, reports on the current state of the art with respect to both methodology and applications.
The chapters are grouped into broader subject areas like "Syntactic Representation and Parsing", "Structural Representation and Matching", "Learning", etc. Each chapter is a self-contained presentation of one particular topic.
A unification of the spectrum of material covered by the individual chapters is provided by the subject and author index included at the end of the book.
www.worldscibooks.com /compsci/0580.html   (374 words)

  
 t11d-24 in fm96   (Site not responding. Last check: 2007-10-21)
The orthogonal pattern that characterizes the northernmost boundary of the Tepic-Zacoalco rift is oblique to the pattern observed in the Grande de Santiago river (which conforms the northern limit of the rift) and for the central-eastern sectors of the Ameca graben (south of the rift).
These patterns are consistent with previously published results (Bryden {\it et al.}, 1991; Wijffels, 1993) in their suggestion of two overturning cells within the Pacific: one shallow, one deep and little communication between the two.
From comparison among the velocity structures of the CR, EFCR and those of typical continental arcs, orogens and oceanic arc in literature, we conclude that the CR belongs to an oceanic arc, and the EFCR a continental arc.
www.agu.org /cgi-bin/SFgate/SFgate?&listenv=table&multiple=1&range=1&directget=1&application=fm96&database=/data/epubs/wais/indexes/fm96/fm96&maxhits=200&="T11D-24"   (16664 words)

  
 [No title]
Current structural classifications consist of Macro pattern, Domain pattern, and Micro pattern.} Usage Category {State the usage category of this pattern.
Where possible, use OCL to express the constraints.} Usage {Describe the general usage conventions for instances of this pattern, including values assigned to instance attributes and subclass substitutions.} Parameters {Define the set of formal parameters that are used to realize an instance of this pattern.
They are M1-level values that have the effect of binding the pattern to a particular realization, thereby tailoring the pattern for a specific use.
www.wiley.com /legacy/compbooks/poole/patterns/Template.doc   (277 words)

  
 The Structural Pattern Of Shakespearean Comdey free essays
The Structural Pattern Of Shakespearean Comdey free essays
THE STRUCTURAL PATTERN OF SHAKESPEAREAN COMEDY William Shakespeare was one of the most famous playwrights in the history of theater.
In essence, the structural pattern of Shakespearean comedy is a journey, which begins with a conflict in the plot and ends with the resolution of that conflict.
www.needfreeessays.com /viewpaper/75900.html   (286 words)

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