产品分为传统的类别(如物理,生物,计算机等),每种产品都属于其中一个类别(或一个类别中的一部分)
给定一个话题,找到跟这个话题有关的所有文章(这些文章可能不是在同一个类别中,而是分散在不同类别的期刊里)
Cross-journal querying use keying work is OK, but the semantic problem remains largely unsolved (e.g. how to handle the extensive homonym and synonym).
thesaurus是辞典的意思,thesauri应该是它的复数形式。
Very lightweight ontologies, proved to be a key technology for effective information access because they help to overcome some of the problems of free-text search by relating and grouping relevant terms in a specific domain as well as providing a controlled vocabulary for indexing information.
现在许多领域里已经开发了一些thesauri。比如医药领域的MeSH,Elsevier life science thesaurus EMTREE
6.2里和这里提到的都是data integration problem.
Elsevier实行data integration的目的是方便用户查询;在大型企业(如Audi,Boeing, HP and others)内部,也存在着data integration的要求。
the sharing of information based on the intended meaning, the semantics of the data.
使用SW技术来解决同名属性的问题。
Unicorn (Israel), Ontoprise (Germany), Network Inference (UK)等。
Swiss Life是欧洲最好的人寿保险公司之一,问题:
How to list the large number of different skills?
How to organise them so that they can be retrieved across geographical and cultural boundaries?
How to ensure that the repository is updated frequently?
EnerSearch is an industrial research consortium focused on information technology in energy.
Learning has not been personalized but rather aimed at mass participation.
content ontology
the basic concepts of the domain in which learning takes place
pedagogy ontology
For example, material can be classified as lecture, tutorial, example, walk-through, exercise, solution, and so on.
structure ontology
e.g. hierarchical and navigational relations like previous, next, hasPart, isPartOf, requires, and isBasedOn.
service profiles
service models
service groundings
Web services are an application area where Artificial Intelligence techniques can be used effectively,
<http://business.semanticweb.org>. A very good resource on the use of Semantic Web technolgy in companies, and a list of providers of Semantic Web technology.