ontology based information retrieval model semantic web

... 1CONTENT CONSISTENCY FOR WEB-BASED INFORMATION RETRIEVAL CHUA CHOON KENG NATIONAL UNIVERSITY OF SINGAPORE 2005 Trang 2CONTENT CONSISTENCY FOR WEB-BASED INFORMATION RETRIEVAL CHUA CHOON KENG ... existing web and P2P consistency models We also survey some work related on HTTP headers In chapter 3, we present the content consistency model and show its implication to web-based information retrieval ... novel content consistency model and introduce 4 content consistency classes We also show the relationship and implications of content consistency to web-based information retrieval In contrast to

Ngày tải lên: 03/10/2015, 21:56

... items and music semantic Construction of the semantic space The semantic space is a set of terms, which has different semantic meanings All the researchworks have constructed a semantic space ... constructed semantic space Machine learning methods such as graphic model and classification-based methods are widelyemployed to learn the mapping Blei et al proposed a generative model to modeling ... probabilistic models such as a Gaussian Mixture Model (GMM)for each word (annotation) based on music low-level features This is based on a class ofSupervised Multi-class Labeling (SML) models [20]

Ngày tải lên: 08/11/2015, 17:25

... and Abbreviations ADIR Adaptive Dual Information Retrieval ADTIR Adaptive Dual Topic-Based Information Retrieval LSA Latent Semantic Analysis LSI Latent Semantic Indexing PDF Probability Density ... Probability Estimation 60 Modelling Probabilities Based on Searched Features 60 The Language Modelling Approach 62 The Document Sampling Approach 62 Probabilistic User-based Model 65 Summary 67 ... and Topic-Based IR 26 1 Probabilistic Approaches to IR 26 Probability Ranking Principle 26 Probabilistic Models 27 Language models 28 Summary 30 Trang 92 Topic-Based IR 31Latent Semantic

Ngày tải lên: 07/08/2017, 11:41

... chaining-based reasoner for a semantic web International Journal on Advances in Intelligent Systems, 7(1-2), 23-38. Trang 2A Scalable Backward Chaining-based Reasoner for a Semantic Web Hui Shi ... continuously [1] In semantic webs, knowledge is formally represented by an ontology as a set of concepts within a domain, and the relationships between pairs of concepts The ontology is used to model a domain, ... question/answer system over a semantic web may ex-perience changes frequently These changes may be to the ontology, to the rule set or to the instances harvested from the web or other data sources

Ngày tải lên: 01/11/2022, 16:03

... Mahmoudi, 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 ... met-ric in information retrieval We’ll address the is-sue of the correlation between BLEU and MAP in Section 4 Both of the proposed approaches rely on the phrase-based SMT (PBMT) model (Koehn ... filtering out the function words (based on XIP PoS tagging) Table 2 shows the performance of the monolin-gual retrieval model for each collection The monolingual retrieval results are comparable

Ngày tải lên: 24/03/2014, 03:20

... broadcast-Ontology-based with relevance feedback Region-based QbE unsupervised segm Global image QbE Region-based QbE supervised segm. Keyword-based Semantic annotation for specific domains Semantic-level ... that facilitate the modelling of higher-level semantics can be extracted [24,25] A priori knowledge representation models are used as a knowledge base that assists semantic-based classification ... Trang 1Region-Based Image Retrieval Using an ObjectOntology and Relevance Feedback Vasileios Mezaris Information Processing Laboratory, Electrical and Computer

Ngày tải lên: 23/06/2014, 01:20

... được định nghĩa 2 Giới thiệu về Web ngữ nghĩa 2.1 Web 3.0 Web ngữ nghĩa (Semantic Web) còn được gọi là Web 3.0, đã được mô tả bởi Tim Berners-Lee 1 trong trang Web, trong đó máy tính có khả năng ... giới hiện thực Một mô hình ontology có thể sáp nhập với một mô hình ontology khác Như vậy, các ontology trong Semantic Web là từng phần và mô-đun hóa Khi chúng ta nói về ontology, chúng ta phân ... World Wide Web Consortium (W3C) và là người sáng lập World Wide Web Trang 4Nói một cách đơn giản, làm theo phương pháp của Semantic Web sẽ cho phép chúng ta lưu trữ kiến thức về nội dung web trong

Ngày tải lên: 10/04/2015, 09:58

... CHƯƠNG II - TÌM HIỂU VỀ WEB NGỮ NGHĨA (SEMATIC WEB) 32 2.1 Tổng quan về Semantic Web 32 2.2 Sự ra đời của Semantic Web 32 2.3 Semantic Web là gì? 32 2.4 Kiến trúc Semantic Web 35 2.4.1 Giới thiệu ... Xây dựng Ontology cho Elearning1.4.1 Mô t Ontology ả Ontology Hình 1.2 Ontology mô tả các tài nguyên học tập Trang 21/54 Trang 221.4.2 S d ng Protégé t o Ontology ử dụng Protégé tạo Ontology ... Trang 3MỤC LỤCCHƯƠNG I - TÌM HIỂU ONTOLOGY 5 1.1 Khái niệm Ontology 5 1.1.1 Ontology là gì? 5 1.1.2 Yêu cầu khi xây dựng ontology 6 1.1.3 Các thành phần của ontology 6 1.1.4 Giới hạn trong sức

Ngày tải lên: 19/05/2015, 02:04

... Attribute-based Image RetrievalWe present the attribute-based image retrieval that is based on semantic imagerepresentations in terms of attributes With the help of attributes, the semanticsimilarities ... content-based retrieval is thesemantic gap, where the meaning of an image is rarely self-evident The aim of content-based retrieval systems must be to provide max-imum support in bridging the semantic ... Since 1970s, image retrieval has been an active research area, including two differentangles, one being text-based and the other content-based (or vision-based) Text-based image retrieval is performed

Ngày tải lên: 10/09/2015, 09:08

... that acquireinformation from the Web and those that do not In this chapter, I first survey non Web- the non Web-based work serve as a good overview to record matching algorithms, theWeb-based work ... acquisition cost already paid up) I first survey non Web-based record matching algorithms Non Web-based algorithmshave been studied for much longer than Web-based algorithms, and can be described atmultiple ... of web basedresources for record matching tasks In more detail, the remainder of this thesis is organized as follows the related work into those not using web based resources and those using web

Ngày tải lên: 10/09/2015, 15:48

... revealed in multimediainformation retrieval in general, similarity measures also play a key role in music 1 Trang 19information retrieval (MIR) [50] which is a sub-area of multimedia information trieval ... discoveries in music information retrieval domain may also be applicable mea-in other multimedia applications Based on the literature review and research gaps on music information retrieval, Trang ... Fusion RQDF Regression-based Query-Dependent Fusion CQDF Classed-based Query-Dependent Fusion QDF-KNN Query-Dependent Fusion based on K Nearest Neighbors.RPegasos Regression based Pegasos ORPegasos

Ngày tải lên: 11/09/2015, 09:15

... AEC industry upon Web-based collaboration? • How should Web-based project management system develop in the future? 1.2 RESEARCH PROBLEMS AND RATIONAL Current commercial Web-based management systems ... current Web-based collaboration systems provided by the ASPs, analyzes user requirements via a Web-based survey in Singapore The survey identifies 4 useful as-is features and 4 to-be ones Based ... document based The problems with document-based systems are information overload and data incompatibility Information overload causes a waste of time and energy of identifying crucial information

Ngày tải lên: 15/09/2015, 22:51

... in Web User Categorization Chapter 8 A Fuzzy Set-based Approach to Web User Categorization Web-based Service Quality Improvement Web User Satisfaction Chapter 3 Identification of Shifts in Web-based ... speaking, WIS are information systems based on web technologies (Isakowitz et al., 1998) A web presence is generally a part of WIS Web browsers serve as a common interface Web technologies, ... Features of WIS McMillan (1999) built a four-stage model to describe the evolution of web-based communication At stage 1 there were static web-based information systems that comprise corporate brochures

Ngày tải lên: 16/09/2015, 17:11

... document is based on topicality match only, we have a topicality-based retrieval system: Rel(d i ) = sim(d i , P T) An IR model based on topicality profile serves as our baseline model We name ... information technology especially the prosperity of WWW, the amount of information in the form of documents and web pages increases dramatically, which arouses an acute need for information retrieval ... corpus Trang 8LIST OF TABLES Table 1: Example 1 – simple retrieval example based on vector space model 9 Table 2: Example 2 – vector space model with relevance feedback 10 Table 3: Summary of

Ngày tải lên: 28/11/2015, 13:44

... Scholarly Semantic Web Services To provide scholarly information retrieval ser-vices over the Semantic Web, we will investigate a Semantic Web-based ture for the delivery of Scholarly Semantic Web ... Browsing Scholarly Ontology 182 7.7 Summary 183 8 Scholarly Semantic Web 184 8.1 Related Work 184 8.1.1 Citation-based Retrieval 184 8.1.2 Semantic Web-based Information Retrieval 187 ... developed Generally, Semantic Web-based informationretrieval is supported through Semantic Web Services provided by SW portals To help a retrieval system to locate suitable Semantic Web Services automatically,

Ngày tải lên: 21/05/2016, 22:19

... documents about information retrievalDocument content D1 information retrieval students work hard D2 hard-working information retrieval students take many classes D3 the information retrieval workbook ... Information Retrieval Trang 15An Introduction to Information RetrievalAbstract Information retrieval is a discipline that deals with the representation, storage, organization, and access to information ... on Web information retrieval five years ago, wecould not find a textbook to match our needs Many textbooks address informationretrieval in the pre-Web era, so they are focused on general information

Ngày tải lên: 04/03/2019, 10:02

... documents about information retrievalDocument content D1 information retrieval students work hard D2 hard-working information retrieval students take many classes D3 the information retrieval workbook ... of Information RetrievalTrang 15An Introduction to Information RetrievalAbstract Information retrieval is a discipline that deals with the representation, storage, organization, and access to information ... on Web information retrieval five years ago, wecould not find a textbook to match our needs Many textbooks address informationretrieval in the pre-Web era, so they are focused on general information

Ngày tải lên: 12/03/2019, 13:44

... encoding model based on convolutional neural network [31], semantic-based natural image retrieval using bag of visual word model and distribution of local semantic concepts [3], an efficient video retrieval ... on ontology using RDF triple We build the semantic-based image retrieval system based on content of the image using DNN, BoW, RDF, ontology and SPARQL We combine these tools to create the new model ... many systems of semantic-based image retrieval, which have been published and applied in a variety of fields such as a semantic framework image retrieval based on high-level semantics and image

Ngày tải lên: 11/01/2020, 00:43

... Relevance  Web Search and Analysis  Trends in Information Retrieval Trang 4Copyright © 2011 Ramez Elmasri and Shamkant NavatheInformation Retrieval (IR) Concepts  Information retrieval  ... Analysis  Agent-based approach categories  Intelligent Web agents  Information filtering/categorization  Personalized Web agents  Database-based approach  Infer the structure of the Website or ... trends  Classify Web analysis:  Web content analysis  Web structure analysis  Web usage analysis Trang 40Copyright © 2011 Ramez Elmasri and Shamkant NavatheSearching the Web  Hyperlink components

Ngày tải lên: 30/01/2020, 20:55

... an ontology based image retrieval framework from a corpus of natural scene images by imparting human cognition in the retrieval process Domain ontology had been developed to model qualitative semantic ... “semantic gap” by modeling high-level semantics, such as techniques to build a model for mapping between low-level features and high-level semantics [2, 21], query techniques based on ontology to accurately ... Multi-Modal Incompleteness ontology-based (MMIO) system for image retrieval ontology-based upon fusing two derived indexes The two indexes were fused into a single indexing model: The first index

Ngày tải lên: 26/03/2020, 02:00