英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字，中文词皆可：

ontology    音标拼音: [ɑnt'ɑlədʒi]
n. 存在论

存在论

ontology
n 1: (computer science) a rigorous and exhaustive organization
of some knowledge domain that is usually hierarchical and
contains all the relevant entities and their relations
2: the metaphysical study of the nature of being and existence

Ontology \On*tol"o*gy\, n. [Gr. ? the things which exist
(pl.neut. of ?, ?, being, p. pr. of ? to be) -logy: cf. F.
ontologie.]
1. That department of the science of metaphysics which
investigates and explains the nature and essential
properties and relations of all beings, as such, or the
principles and causes of being.
[1913 Webster]

2. (Computers) A systematic arrangement of all of the
important categories of objects or concepts which exist in
some field of discourse, showing the relations between
them. When complete, an ontology is a categorization of
all of the concepts in some field of knowledge, including
the objects and all of the properties, relations, and
functions needed to define the objects and specify their
actions. A simplified ontology may contain only a
hierarchical classification (a {taxonomy}) showing the
type subsumption relations between concepts in the field
of discourse. An ontology may be visualized as an abstract
graph with nodes and labeled arcs representing the objects
and relations.

Note: The concepts included in an ontology and the
hierarchical ordering will be to a certain extent
arbitrary, depending upon the purpose for which the
ontology is created. This arises from the fact that
objects are of varying importance for different
purposes, and different properties of objects may be
chosen as the criteria by which objects are classified.
In addition, different degrees of aggregation of
concepts may be used, and distinctions of importance
for one purpose may be of no concern for a different
purpose.
[PJC]

28 Moby Thesaurus words for "ontology":
aesthetics, axiology, casuistry, cosmology, epistemology, ethics,
existentialism, first philosophy, gnosiology, logic,
mental philosophy, metaphysics, moral philosophy, phenomenology,
philosophastry, philosophic doctrine, philosophic system,
philosophic theory, philosophical inquiry,
philosophical speculation, philosophy, school of philosophy,
school of thought, science of being, sophistry, theory of beauty,
theory of knowledge, value theory

1. A systematic account of Existence.

2. (From philosophy) An explicit
formal specification of how to represent the objects, concepts
and other entities that are assumed to exist in some area of
interest and the relationships that hold among them.

For {AI} systems, what "exists" is that which can be
represented. When the {knowledge} about a {domain} is
represented in a {declarative language}, the set of objects
that can be represented is called the {universe of discourse}.
We can describe the ontology of a program by defining a set of
representational terms. Definitions associate the names of
entities in the {universe of discourse} (e.g. classes,
relations, functions or other objects) with human-readable
text describing what the names mean, and formal {axioms} that
constrain the interpretation and well-formed use of these
terms. Formally, an ontology is the statement of a {logical
theory}.

A set of {agents} that share the same ontology will be able to
communicate about a domain of discourse without necessarily
operating on a globally shared theory. We say that an agent
commits to an ontology if its observable actions are
consistent with the definitions in the ontology. The idea of
ontological commitment is based on the {Knowledge-Level}
perspective.

3. The hierarchical structuring of
knowledge about things by subcategorising them according to
their essential (or at least relevant and/or cognitive)
qualities. See {subject index}. This is an extension of the
previous senses of "ontology" (above) which has become common
in discussions about the difficulty of maintaining {subject
indices}.

(1997-04-09)


请选择你想看的字典辞典：
单词字典翻译
ontology查看　ontology　在百度字典中的解释百度英翻中〔查看〕
ontology查看　ontology　在Google字典中的解释Google英翻中〔查看〕
ontology查看　ontology　在Yahoo字典中的解释Yahoo英翻中〔查看〕

安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Ontology - Wikipedia
    Ontology is the study of being It is the branch of philosophy that investigates the nature of existence, the features all entities have in common, and how they are divided into basic categories of being [1] It aims to discover the foundational building blocks of the world and characterize reality as a whole in its most general aspects [a] In this regard, ontology contrasts with individual
  • Ontology | Definition, History Examples | Britannica
    Ontology, the philosophical study of being in general, or of what applies neutrally to everything that is real It was called “first philosophy” by Aristotle in Book IV of his Metaphysics The Latin term ontologia (“science of being”) was felicitously invented by the German philosopher Jacob
  • Introducing Genie One, Genie Agents, and Genie Ontology
    Genie Ontology is a unified context layer that extracts and reasons over knowledge from data and connected tools, so Genie can identify trustworthy sources and answer with full business context
  • What is an ontology and why we need it - Protégé
    Ontology Development 101: A Guide to Creating Your First Ontology 1 Why develop an ontology? In recent years the development of ontologies—explicit formal specifications of the terms in the domain and relations among them (Gruber 1993) —has been moving from the realm of Artificial-Intelligence laboratories to the desktops of domain experts
  • What Is Ontology in Research and Why Does It Matter?
    Ontology in research is the study of what exists and what is real It’s the set of assumptions a researcher holds about the nature of reality itself, and those assumptions quietly shape every decision that follows: what questions get asked, what counts as evidence, and which methods are used to collect it
  • ONTOLOGY Definition Meaning - Merriam-Webster
    The meaning of ONTOLOGY is a branch of metaphysics concerned with the nature and relations of being How to use ontology in a sentence
  • What is Ontology? | The Ontology Research Development Network
    Ontology is the philosophical study of being, existence, and reality In information science, an ontology is a formal representation of knowledge as a set of concepts within a domain and the relationships between those concepts
  • Exploring Ontology: A Comprehensive Overview - Philosophos
    Ontology is a branch of metaphysics that asks and answers questions about the nature of existence Learn about its types, principles, and examples
  • What is an ontology - University of Vermont
    Ontology is a field of Philosophy concerned with the "nature of existence " It's practice dates unequivocally to Aristotle, however the name is roughly three centuries old Philosophers in Ontology ask and answer questions like, "What is an apple?" "How do I know it is an apple and not a peach
  • Ontology - New World Encyclopedia
    Ontology is a major branch of philosophy and a central part of metaphysics that studies questions of being or existence The questions include a wide range of issues concerning being or existence such as: the meaning of being or what it means "to be" for each of such beings as physical entities, souls, God, values, numbers, time, space, imaginary objects, and others; what is real existence





中文字典-英文字典  2005-2009