ontology based information retrieval model semantic web
Tài liệu Báo cáo khoa học: "A Unified Graph Model for Sentence-based Opinion Retrieval" pdf
Ngày tải lên :
20/02/2014, 04:20
... information re-
trieval model, and further assumed that all re-
trieved documents contained relevant opinions.
(2) Doc: The 2-stage document -based opinion
retrieval model was adopted. The model ...
contextual information to express relevant opi-
nion, and inter-sentence information to measure
the degree of each word pair through a
graph -based model in the following section.
3.2
HITS Model ... Opinion Retrieval Model
In addition to conventional 2-stage approach,
there has been some research on unified opinion
retrieval models.
Eguchi and Lavrenko proposed an opinion re-
trieval model...
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Tài liệu Báo cáo khoa học: "Summarization-based Query Expansion in Information Retrieval" doc
Ngày tải lên :
20/02/2014, 18:20
... "Natural Language Information
Retrieval: TREC°5 Report." Proceedings of TREC-5 confer°
ence.
Strzalkowski, Tomek. 1995. "Natural Language Information Re-
trieval" Information Processing ... easy combination
of alternative retrieval methods, creating a meta-
search strategy which maximizes the contribution of
each stream. Different information retrieval systems
can used as indexing ... to be a statement speci-
fying the semantic criteria of relevance. This means
that except for the semantic or conceptual resem-
blance (which we cannot model very well as yet)
much of the...
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Báo cáo khoa học: "Optimizing Language Model Information Retrieval System with Expectation Maximization Algorithm" doc
Ngày tải lên :
08/03/2014, 01:20
... Relating the new lan-
guage models of information retrieval to the tradi-
tional retrieval models: University of Twente
[Host]; University of Twente, Centre for Telemat-
ics and Information Technology, ... B. Croft, "A general language model
for information retrieval, " 1999, pp. 316-321.
G. Salton and M. J. McGill, Introduction to Modern
Information Retrieval: McGraw-Hill, Inc. New
York, ... research into Information Retrieval (IR).
The pioneers in IR developed two models for
ranking: the vector space model (G. Salton and
M. J. McGill, 1986) and the probabilistic model
(S. E....
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Báo cáo khoa học: "The Effect of Translation Quality in MT-Based Cross-Language Information Retrieval" pptx
Ngày tải lên :
17/03/2014, 04:20
... has a
stronger effect on retrieval effectiveness than the
size of the rule base in MT -based CLIR. There-
fore in order to improve the retrieval effective-
ness of a MT -based CLIR application, ... translation
resources for bilingual retrieval based on query
translation: a bilingual machine-readable diction-
ary, a statistical dictionary based on a parallel
web corpus and the Babelfish MT ...
2.2 MT -Based Query Translation
MT -based query translation is perhaps the most
straightforward approach to CLIR. Compared
with dictionary or corpus based methods, the
advantage of MT-based...
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Easy and effective - web-based information systems designed and maintained by physicians: experience with two gynecological projects docx
Ngày tải lên :
22/03/2014, 11:20
... for physicians information sources change from printed media to web based
systems [6, 8, 11]. An essential reason for the rapidly acceptance and distribution of the worldwide
web (www) is the ... to
digital records. A special web -based information source of the German Perinatal Registry does not
exist. Therefore the Internet platform of the German Working Group for Information Technologies ... "cookies" (small amounts of information
- 2 -
Archives of Gynecology and Obstetrics
DOI 10.1007/s00404-002-0365-9
Original Article
Easy and effective - web -based information systems
designed...
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Báo cáo khoa học: "User Requirements Analysis for Meeting Information Retrieval Based on Query Elicitation" pdf
Ngày tải lên :
23/03/2014, 18:20
...
2 Argumentative Information in Meeting
Information Retrieval
Depending on the meeting browser type
1
, different
levels of meeting content become accessible for
information retrieval. Audio ...
retrieving either topic -based or dialog act -based
information. But this assumption is partially in-
validated by our user query elicitation analysis,
which showed that such information is only ... the information sought
can be classified into two broad categories: argu-
mentative information (about the argumentative
process and the outcome of debate meetings), and
non-argumentative information...
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Báo cáo khoa học: "An Ontology-based Semantic Tagger for IE system" pot
Ngày tải lên :
23/03/2014, 19:20
... are concepts of the ontology
4 Semantic tagging
The purpose of the semantic tagging process is to an-
notate words with domain-specific informations. In
our case, domain-specific informations are ... developed is
based on a multi-knowledge source modeled by a
hidden Markov model. (N. Boufaden and al., 2001)
showed that by using linguistic features modeled by
a Hidden Markov Model, it is possible ... It is based on semantically tagging words
and selecting the most relevant ones given the con-
text. In this paper, we developed a semantic tag-
ging approach that uses a domain-specific ontology,
a...
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Báo cáo khoa học: "Adaptation of Statistical Machine Translation Model for Cross-Lingual Information Retrieval in a Service Context" ppt
Ngày tải lên :
24/03/2014, 03:20
... Embedding web -based statistical trans-
lation models in cross-language information re-
trieval. Computational Linguistiques, 29:381–419,
September.
Jian-yun Nie and Jiang Chen. 2002. Exploiting the
web ... 2009) or the web (Nie
and Chen, 2002; Hu et al., 2008). (Gao et al.,
2006) proposes syntax -based translation models
to deal with the disambiguation issues (NP -based,
dependency -based) . The candidate ... fea-
tures can be beneficial for the final retrieval qual-
ity: the models with syntax features can outper-
form the model basd on the moses features only.
The syntax -based features leading to the most...
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Báo cáo khoa học: "A Generative Blog Post Retrieval Model that Uses Query Expansion based on External Collections" potx
Ngày tải lên :
30/03/2014, 23:20
... Probabilistic relevance mod-
els based on document and query generation. In Language
Modeling for Information Retrieval, Kluwer International
Series on Information Retrieval. Springer.
Lavrenko, ... model-
ing approach, one builds a language model from
each document, and ranks documents based on the
probability of the document model generating the
query. The particulars of the language modeling
approach ... Using
coherence -based measures to predict query difficulty.
In 30th European Conference on Information Retrieval
(ECIR 2008), page 689694. Springer, Springer.
Hiemstra, D. (2001). Using Language Models...
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Báo cáo khoa học: "Complementing Word Net with Roget''''s and Corpus-based Thesauri for Information Retrieval" pdf
Ngày tải lên :
31/03/2014, 21:20
... information retrieval. In
Proceedings of
the RIA O 94 Conference.
Hinrich Schutze and Jan 0. Pederson. 1997. A
cooccurrence -based thesaurus and two applica-
tions to information retrieval.
Information ... Corpus -based
Thesauri for Information Retrieval
Rila Mandala, Takenobu Tokunaga and Hozumi Tanaka
Abstract
This paper proposes a method to over-
come the drawbacks of WordNet when
applied to information ... proposed the use of WordNet in informa-
tion retrieval, they did not use WordNet in the
query expansion framework.
Our syntactic-relation -based thesaurus is based
on the method proposed by Hindle...
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semantic web and model-driven engineering
Ngày tải lên :
24/04/2014, 16:05
... UML Models. 54
4.6 Feature Model Confi guration for Model Checking. 55
4.7 Mapping between Two Models Ma and Mb. 56
4.8 Feature Model Confi guration for Model Enrichment. 57
4.9 Ontology Modeling ... development, the semantic web community is keen on learn-
ing what the benefi ts are of disciplines like metamodeling, domain - specifi c model-
ing, and model transformation for the semantic web fi eld. ... map-
pings ’ semantic model or semantic domain. For Harel and Rumpe [67] , the semantic
defi nition of a language comprises a semantic domain and a semantic mapping from
the syntax to the semantic...
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Phân tích thiết kế hệ thống E - Tourism sử dụng công nghệ semantic web và hệ đa agent
Ngày tải lên :
16/01/2013, 17:02
... Thống
E-Tourism
Ontology
Transport OntologyHotel Ontology
Tourism Service
Ontology
Agent Ontology
Destination Ontology
Event Ontology
Message Ontology
E - Tourism
Ứng dụng trong agent khách sạn
Kết hợp Ontology ... Tourism
IDBConnection
Từ file rdf chuyển sang csdl quan hệ
file RDF ModelRDB CSDL
Lấy dữ liệu từ csdl ra để thao tác
Dữ liệu CSDL ModelMaker
OntModel OntModelSpec
IDBConnection
Quá trình ánh xạ
E - Tourism
Nghiệp ... Dung
Xây dựng ontology khách sạn
1
Xây dựng ontology các dịch vụ du du lịch
2
Ánh xạ RDF sang csdl quan hệ
3
Ứng dụng xây dựng Agent Hotel
4
E - Tourism
Kiến Trúc Hệ Thống
E - Tourism
Ánh xạ ontology...
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nghiên cứu, tìm hiểu và xây dựng ứng dụng với SEMANTIC WEB
Ngày tải lên :
12/04/2013, 13:24
... xây dựng các ứng dụng Semantic Web.
Bao gồm các chương sau:
Chương 1: Giới thiệu Semantic Web .
Chương 2: Các ngôn ngữ Semantic Web .
Chương 3: RDF- Nền tảng của Semantic Web .
Chương 4: Truy ...
Semantic Web còn cung cấp các phương tiện để thêm các thông tin chi tiết lên
Web nhằm hỗ trợ sự tự động hóa cho các dịch vụ.
1.2.3 Kiến trúc Semantic Web
1.2.3.1 Giới thiệu :
Semantic Web ... phục các yếu điểm của Web hiện tại khái niệm Semantic Web đã ra
đời. Và khái niệm này đã được Tim Berners-Lee định nghĩa như sau:
Semantic Web như một sự mở rộng của web hiện tại mà trong...
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