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Wiccap Data Model: Mapping Physical Websites to Logical Views [chapter]

Zehua Liu, Feifei Li, Wee Keong Ng
2002 Lecture Notes in Computer Science  
To do this, information from the Web sources need to be extracted automatically according to users' interests.  ...  We propose the Wiccap Data Model, an XML data model that maps Web information sources into commonly perceived logical models.  ...  One of the solutions to this information overloading problem is Information Extraction (IE) from the Web.  ... 
doi:10.1007/3-540-45816-6_19 fatcat:qc47mefiszgwvbfb3v7oqqac6e

RetroWeb: A Web Site Reverse Engineering Approach [chapter]

Sélima Besbes Essanaa, Nadira Lammari
2004 Lecture Notes in Computer Science  
It aims to provide a description of the site informative content at the physical, logical and conceptual levels.  ...  Most of Web sites are built as a matter of priority. Therefore, to reduce the development time, the conceptualization phase is often put aside and the associated documentation is neglected.  ...  The first one is used to represent the Web site through its physical views. It is instantiated using the semi-structured data extracted from each HTML page.  ... 
doi:10.1007/978-3-540-27834-4_38 fatcat:bi776tzfjzdjtpqttdzz74w5ka

A layered architecture for querying dynamic Web content

Hasan Davulcu, Juliana Freire, Michael Kifer, I. V. Ramakrishnan
1999 SIGMOD record  
The lowest layer, virtual physical layer, provides navigation independence by shielding the user from the complexities associated with retrieving data from raw Web sources.  ...  Next, the traditional logical layer supports site independence. The top layer is analogous to the external schema layer in traditional databases.  ...  Secondly, given the dynamic nature of the Web, in order to build a practical tool to retrieve dynamic content from Web sites, one needs to devise automatic ways to extract and maintain navigation processes  ... 
doi:10.1145/304181.304225 fatcat:ergwp5mi65ckpaxydkxnkeqcvu

Data Conceptualisation for Web-Based Data-Centred Application Design [chapter]

Julien Vilz, Anne France Brogneaux, Ravi Ramdoyal, Vincent Englebert, Jean Luc Hainaut
2006 Lecture Notes in Computer Science  
The paper describes the conceptualisation process in the ReQuest approach, a wide-spectrum methodology for web-based information systems analysis and development.  ...  The paper focuses on the analysis step of these fragments that yields a draft conceptual schema of the application domain.  ...  Logical to Conceptual Transformation The representation of trees and shared subtrees provides us with a logical Entityrelationship schema from which a pure conceptual schema must be extracted.  ... 
doi:10.1007/11767138_15 fatcat:rt252eobpjgsjhsc3myjlss3ey

Parametric Design of Outdoor Broadcasting Studio Based on Schema Theory

Li Zhu, Nan Zhang, Xiaoying Qing, B.B. Sahari, Q. Qin, R. Das
2016 MATEC Web of Conferences  
This paper mainly demonstrates that the schema is an important way for the architect to cognize architecture form logic.  ...  It also reveals the importance of "algorithm schema" for the cognition and architectural form logic generation.  ...  The schema generation of architecture form logic As for the study of the architecture form logic on this case, we will extract the perceptual schema from its functional image.  ... 
doi:10.1051/matecconf/20168203001 fatcat:ku2ppbimzbgd7fcv7bhwwsgl64

Extracting XML schema from multiple implicit xml documents based on inductive reasoning

Masaya Eki, Tadachika Ozono, Toramatsu Shintani
2008 Proceeding of the 17th international conference on World Wide Web - WWW '08  
We propose a method of classifying XML documents and extracting XML schema from XML by inductive inference based on constraint logic programming.  ...  We evaluate similarity of data type and data range by using an ontology dictionary, and XML Schema is made from results of second and last step.  ...  [4] proposed an approach to extract schema from semi-structured data. Our research is mainly based on that study. Constraint logic Copyright is held by the author/owner(s).  ... 
doi:10.1145/1367497.1367735 dblp:conf/www/EkiOS08 fatcat:kythyi765bf7loeuypk4cjouy4

A layered architecture for querying dynamic Web content

Hasan Davulcu, Juliana Freire, Michael Kifer, I. V. Ramakrishnan
1999 Proceedings of the 1999 ACM SIGMOD international conference on Management of data - SIGMOD '99  
The lowest layer, virtual physical layer, provides navigation independence by shielding the user from the complexities associated with retrieving data from raw Web sources.  ...  Next, the traditional logical layer supports site independence. The top layer is analogous to the external schema layer in traditional databases.  ...  Secondly, given the dynamic nature of the Web, in order to build a practical tool to retrieve dynamic content from Web sites, one needs to devise automatic ways to extract and maintain navigation processes  ... 
doi:10.1145/304182.304225 dblp:conf/sigmod/DavulcuFKR99 fatcat:y7wlceug3rc43nem6f7dsyml5a

Constructing Interface Schemas for Search Interfaces of Web Databases [chapter]

Hai He, Weiyi Meng, Clement Yu, Zonghuan Wu
2005 Lecture Notes in Computer Science  
Many Web applications, such as Web database integration and deep Web crawling, require the construction of the schemas.  ...  In this paper, we introduce a schema model for complex search interfaces, and present a tool (WISE-iExtractor) for automatically extracting and deriving all the needed information to construct the schemas  ...  We also note that Ontobuilder [4] supports the automatic extraction of ontologies from Web search interfaces.  ... 
doi:10.1007/11581062_3 fatcat:sf4ec4crofgx3mvceuiczsqxeq

Framework for managing Business logic of web services through Schema generation and Property evaluation

M Thirumaran., P Dhavachelvan., T Asha., P Lakshmi.
2010 International Journal of Computer Applications  
The possible rules are extracted from the XML schema. According to the change request the rule sets are modified in the XML schema.  ...  From the XML kind of schema, it is easy to extract conditional usages, assignment usages for a given variable. This work is carried out by dependency analyzer.  ... 
doi:10.5120/1317-1804 fatcat:7xcz2j2gqndg7jwfgwywdf6qdy

A Structured Approach to Data Reverse Engineering of Web Applications [chapter]

Roberto De Virgilio, Riccardo Torlone
2009 Lecture Notes in Computer Science  
We focus on data content and on the way in which such content is structured on the Web.  ...  and goals and this makes the process of retrieval and integration of Web contents difficult to automate.  ...  DRE evolved from the more generic reverse engineering process, concentrating on the data of the application and on its organization.  ... 
doi:10.1007/978-3-642-02818-2_7 fatcat:nv3hj4im35c4hk3um6gtbthuau

Towards Deeper Understanding of the Search Interfaces of the Deep Web

Hai He, Weiyi Meng, Yiyao Lu, Clement Yu, Zonghuan Wu
2007 World wide web (Bussum)  
In this paper, we first propose a schema model for representing complex search interfaces, and then present a layout-expression based approach to automatically extract the logic attributes from search  ...  A system, WISE-iExtractor, has been implemented to automatically construct the schema from any Web search interfaces.  ...  Acknowledgement: This work is supported by the following grants from NSF: IIS-0414981, IIS-0414939 and CNS-0454298.  ... 
doi:10.1007/s11280-006-0010-9 fatcat:jvtc35z5dvdd7da2flwr2d447i

Automatic Generation of Scripts for Database Creation from Scenario Descriptions

L. W. Amarasinghe, R. D. Nawarathna
2021 Asian Journal of Research in Computer Science  
New algorithms are proposed to automatically convert the entity relational model to the logical schema and finally to the database script.  ...  template construction to extract the necessary information required for the entity relational model.  ...  From Table 3 . it can be seen that the accuracy of generating the logical schema is 90% or less.  ... 
doi:10.9734/ajrcos/2021/v7i330180 fatcat:fh423wys7nbjvdyxewiqrcx7nu

A New Implementation for Ontology Mapping Based Enterprise Semantic Interoperation

Xiao Feng Di, Yu Shun Fan
2009 Applied Mechanics and Materials  
In this paper, a unified description of data model which mapping from logical data of enterprise's information system is developed to solve the gap in interoperation.  ...  Secondly, the neutral format can be mapped into the semantic entities and semantic linking through the process of extraction and annotation and added into ontology and been described in a standard method  ...  The source schema could be RDB, EDIFACT, FlatFile, and XML-schema while the target schema is the logical data model LDM.  ... 
doi:10.4028/www.scientific.net/amm.16-19.644 fatcat:j4swxv4vkjdungzkm5kdffuw3q

Evaluation of Change Factors for Web Service Change Management

M. Thirumaran, P. Dhavachelvan, D. Aishwarya, Kiran Kumar Reddy
2012 Procedia Technology - Elsevier  
Service providers register their services in the service registry and consumer obtains the required services from the same.  ...  Here we propose a new dynamic schema driven business logic model using Finite State Machine (FSM) to accomplish WS change management in a best manner so that business growth rate can be increased.  ...  Then the corresponding XML schema is extracted and dependency analysis is made. Based on the dependency analysis inserted again the web service is updated and executed according to the new change.  ... 
doi:10.1016/j.protcy.2012.10.020 fatcat:kignorielbcwpf6w2llqocm56q

Web Information Extraction by Semantic Tagging

Mirel Cosulschi, Roberto De Virgilio, Tommaso Di Noia, Roberto Mirizzi
2010 Revista de Informática Teórica e Aplicada  
Using a Data Reverse Engineering process [1], the logical schema of the Web site can be obtained from the conceptual representation and then one can label the extracted HTML blocks using RDFa (e.g. an  ...  In this framework, we extend a structure discovery technique [1] that: (i) identifies blocks grouping semantically related objects occurring in Web pages, and (ii) generates a logical schema of a Web site  ...  ) ontology, (ii) annotations related to all the other blocks extracted from the same HTML page, and (iii) annotations either from similar pages or pages from the main Web site.  ... 
doi:10.22456/2175-2745.12576 fatcat:xqmmmp2h2bedxjpovcp4gjvioq
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