分類表

WordNet

devise a system or form a scheme for
an elaborate and systematic plan of action (同)strategy
form intrigues (for) in an underhand manner (同)intrigue, connive
restriction imposed by the government on documents or weapons that are available only to certain authorized people
a group of people or things arranged by class or category (同)categorization, categorisation
the basic cognitive process of arranging into classes or categories (同)categorization, categorisation, sorting

PrepTutorEJDIC

(仕事・活動の)『計画』,案《+『for』(『of』)+『名』(do『ing』)》 / 『陰謀』,策謀,計略 / …‘を'計画する;〈良くないこと〉‘を'たくらむ《+『out』+『名』,+『名』+『out』》 / (…を)計画する;たくらむ《+『for』(『against』)+『名』(do『ing』)》
〈U〉〈C〉分類[作業];分類法;分類結果 / 〈U〉(生物学上の)分類

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/07/27 12:02:54」(JST)

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In metadata a classification scheme is an arrangement of kinds of things (classes) or groups of kinds of things. It is often represented as a hierarchical structure and accompanied by descriptive information of the classes or groups. A classification scheme is intended to be used for an arrangement or division of individual objects into the classes or groups. The classes or groups are based on characteristics which the objects (members) have in common. In linguistics, the subordinate concept is called a hyponym of its superordinate. Typically a hyponym is 'a kind of' its superordinate (Keith Allan, Natural language Semantics^[1]).

The ISO/IEC 11179 metadata registry standard uses classification schemes as a way to classify administered items, such as data elements, in a metadata registry.

Some quality criteria for classification schemes are:

Whether different kinds are grouped together. In other words whether it is a grouping system or a pure classification system. In case of grouping, a subset (subgroup) does not have (inherit) all the characteristics of the superset, which makes that the knowledge and requirements about the superset are not applicable for the members of the subset.
Whether the classes have overlaps.
Whether subordinates (may) have multiple superordinates. Some classification schemes allow that a kind of thing has more than one superordinate others don't. Multiple supertypes for one subtype implies that the subordinate has the combined characteristics of all its superordinates. This is called multiple inheritance (of characteristics from multiple superordinates to their subordinates).
Whether the criteria for belonging to a class or group are well defined.
Whether the kinds of relations between the concepts are made explicit and well defined.
Whether subtype-supertype relations are distinguished from composition relations (part-whole relations) and from object-role relations.

Benefits of using classification schemes

Using one or more classification schemes for the classification of a collection of objects has many benefits. Some of these include:

It allows a user to find an individual object quickly on the basis of its kind or group.
It makes it easier to detect duplicate objects.
It conveys semantics (meaning) of an object from the definition of its kind, which meaning is not conveyed by the name of the individual object or its way of spelling.
Knowledge and requirements about a kind of thing can be applied to the members of the kind.

Kinds of classification schemes

The following are examples of different kinds of classification schemes. This list is in approximate order from informal to more formal:

thesaurus - a collection of categorized concepts, denoted by words or phrases, that are related to each other by narrower term, wider term and related term relations.
taxonomy - a formal list of concepts, denoted by controlled words or phrases, arranged from abstract to specific, related by subtype-supertype relations or by superset-subset relations.
data model - an arrangement of concepts (entity types), denoted by words or phrases, that have various kinds of relationships. Typically, but not necessarily, representing requirements and capabilities for a specific scope (application area).
network (mathematics) - an arrangement of objects in a random graph.
ontology - an arrangement of concepts that are related by various well defined kinds of relations. The arrangement can be visualized in a directed acyclic graph.

One example of a classification scheme for data elements is a representation term.

References

^ Keith Allan (2002, p. 260), Natural language Semantics, Blackwell Publishers Ltd, Oxford, ISBN 0-631-19296-4.

External links

ISO/IEC 11179-2:2005 Metadata registries (MDR) - Part 2: Classification
Nancy Lawler's presentation on Classification Schemes

UpToDate Contents

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English Journal

Application of a classification system focusing on potential asphyxia for cases of sudden unexpected infant death.

Randall B, Donelan K, Koponen M, Sens MA, Krous HF.SourceDepartment of Pathology, University of South Dakota Sanford School of Medicine, 2441 Stanton Dr, Sioux Falls, SD, 57103, USA, fornsix@aol.com.
Forensic science, medicine, and pathology.Forensic Sci Med Pathol.2012 Mar;8(1):34-9. Epub 2011 Nov 11.
Current classification schemes for sudden unexpected infant death (SUID) may not be optimal for capturing scene events that potentially predispose to asphyxia. (1) To compare causes of death in a group of SUID cases assigned by multiple reviewers using our recently published classification scheme fo
PMID 22076787

Esophageal hypertensive peristaltic disorders.

Roman S, Tutuian R.SourceDigestive Physiology, Hopsices Civils de Lyon, Hospital E Herriot, and Lyon I University, Lyon, France Division of Gastroenterology, University Clinic for Visceral Surgery and Medicine, Bern University Hospital, Inselspital, Bern, Switzerland.
Neurogastroenterology and motility : the official journal of the European Gastrointestinal Motility Society.Neurogastroenterol Motil.2012 Mar;24 Suppl 1:32-9. doi: 10.1111/j.1365-2982.2011.01837.x.
Background Esophageal motility abnormalities include a series of manometric findings that differ to a significant degree from findings in normal, asymptomatic volunteers. Methods Current review summarizes conventional and high-resolution esophageal manometry criteria used to define and charact
PMID 22248106

Japanese Journal

An analog VLSI implementation of one-class support vector machine for multiclass classification of highly dimensional vectors

Zhang Renyuan,Kaneko Mineo,Shibata Tadashi
Japanese Journal of Applied Physics 53(4S), 04EE03-1-04EE03-8, 2014-02-28
… The one-class classification of highly dimensional sample vectors can be solved with this analog processor. … Since the OC-SVM learning mechanism is complicated, a special solution scheme for the learning operation is proposed on the basis of analog computational circuitries and a fully parallel architecture. …
NAID 120005451816

建築レコードの目録編成モデル : ｢スタンダード･シリーズ｣から考える

齋藤歩
GCAS report = 学習院大学大学院人文科学研究科アーカイブズ学専攻研究年報 (3), 20-41, 2014
NAID 40020111361

STRUCTURE AND COMPOSITENESS OF HADRON RESONANCES

HYODO TETSUO
International Journal of Modern Physics A 28(29), 2013-11-19
… However, it is a subtle problem to define a proper classification scheme for the hadron structure, and the nonzero decay width of the hadron resonances makes the analysis complicated. …
NAID 120005353492