Enhancing Web Search Using a Combination of Knowledge Base and Semantic Web Technology

Top PDF Enhancing Web Search Using a Combination of Knowledge Base and Semantic Web Technology:

Knowledge based Grid Using Semantic Web for the University System

Knowledge based Grid Using Semantic Web for the University System

basis of agent technology and integrate grid data resource which further improve services of the users of the university like searching, advisory and help desk system, course and resource management, student and faculty communication etc in the distributed environment[9]. From the view of above literature we understand that the Knowledge Grid is a knowledge carrier and good controlled knowledge collections, and it defines the operation mode of Knowledge Management in distributed environment. It can be developed on the semantic web which is the integration of semantic web and grid and provides people semantic browse by taking many knowledge bases as its knowledge sources. Lots of work has been done on the application of the knowledge based grid in semantic web but the very little amount of work has been done in the area of university domain which will be very help full for the student for the decision making. this paper consider all the developments issues of knowledge based grid in semantic web for the university domain where student can search ,collect ,coordinate , publish and share knowledge in the distributed environment. Four important component identified and developed for the development of knowledge based grid in semantic web semantic interface for retrieving semantic related information, knowledge server acting as a web container for knowledge ,ontology server for managing ontology and directory knowledge server acting as a catalog of knowledge base.
Show more

7 Read more

KnowMore - Knowledge Base Augmentation with Structured Web Markup | www.semantic-web-journal.net

KnowMore - Knowledge Base Augmentation with Structured Web Markup | www.semantic-web-journal.net

Abstract. Knowledge bases are in widespread use for aiding tasks such as information extraction and information retrieval, for example in Web search. However, knowledge bases are known to be inherently incomplete, where in particular tail entities and properties are under-represented. As a complimentary data source, embedded entity markup based on Microdata, RDFa, and Microformats have become prevalent on the Web and constitute an unprecedented source of data with significant potential to aid the task of knowledge base augmentation (KBA). RDF statements extracted from markup are fundamentally different from traditional knowledge graphs: entity descriptions are flat, facts are highly redundant and of varied quality, and, explicit links are missing despite a vast amount of coreferences. Therefore, data fusion is required in order to facilitate the use of markup data for KBA. We present a novel data fusion approach which addresses these issues through a combination of entity matching and fusion techniques geared towards the specific challenges associated with Web markup. To ensure precise and non-redundant results, we follow a supervised learning approach based on a set of features considering aspects such as quality and relevance of entities, facts and their sources. We perform a thorough evaluation on a subset of the Web Data Commons dataset and show significant potential for augmenting existing knowledge bases. A comparison with existing data fusion baselines demonstrates superior performance of our approach when applied to Web markup data.
Show more

21 Read more

Quest semantic a query based personalization for enhancing search engine on web

Quest semantic a query based personalization for enhancing search engine on web

With the tremendous growth of information available to end users through the Web, search engines come to play ever a more critical role. Nevertheless, because of their general-purpose approach, it is always less uncommon that obtained result sets provide a burden of useless pages. The next-generation Web architecture, represented by the Semantic Web, provides the layered architecture possibly allowing overcoming this limitation. Several search engines have been proposed, which allow increasing information retrieval accuracy by exploiting a key content of Semantic Web resources, that is, relations. However, in order to rank results, most of the existing solutions need to work on the whole annotated knowledge base. In this paper, we propose a relation-based page rank algorithm to be used in conjunction with Semantic Web search engines that simply relies on information that could be extracted from user queries and on annotated resources. Relevance is measured as the probability that a retrieved resource actually contains those relations whose existence was assumed by the user at the time of query definition.
Show more

6 Read more

SEMANTIC SIGNATURE BASED IMAGE SEARCH IN WEB

SEMANTIC SIGNATURE BASED IMAGE SEARCH IN WEB

As World-Wide Web develops in a blasting rate, web crawlers get to be basic instruments for any clients who search for data on the Internet, and web picture inquiry is no exemption. Web picture recovery has been investigated and created by scholastic specialists and in addition commercial organizations, including scholarly models (e.g. Vi-sualSEEK [20]), extra hunt measurement of existing web internet searchers (e.g. Google Image Search [10], Al-taVista Image [1], particular web picture web indexes (e.g. Same [8], PicSearch [18]), and web interfaces to com-mercial picture suppliers (e.g. Getty Images [9], Corbis [6]). In spite of the fact that ability and scope differ from framework to framework, we can arrange the web picture internet searchers into three flavors regarding how pictures are ordered. The first is content based list. The representation of the im-age incorporates filename, inscription, encompassing content, and content in the HTML record that shows the picture. The sec-ond one is picture based file. The picture is spoken to in visual elements, for example, shading, composition, and shape. The third one is cross breed of content and picture list. In any case, content based list is by all accounts the common decision now in the event that anybody arrangements to fabricate a huge scale web picture recovery framework. Possible reasons include: content data interface permits clients to ex-press their data require more effortlessly than picture between face, (requesting that clients give a specimen picture or drawing a scratch is from time to time doable), picture comprehension is still an open exploration issue, and picture based record are typically of high dimensionality.
Show more

8 Read more

Integrating Knowledge Base Retrieval with Web Search using Semantic Roles

Integrating Knowledge Base Retrieval with Web Search using Semantic Roles

A knowledge worker often has the need to get not just generic descriptive content but highly relevant conceptual or technical information along with relevant explanations, examples, applications, images, videos and so on. Existing hyperlinks on the WWW together with methods such as the well-known Page Rank algorithm [16] are suitable for finding comprehensive but superficially relevant information about a given concept. The proliferation of search results and degree of freedom given to the knowledge worker in clicking on links to choose among them often leads to the user getting “lost in the hyperspace”. On encountering a link, how does one decide if it is worth the distraction to follow the path that the link takes? Does the label appearing on the link tell us enough to decide? This problem could be called informational myopia. To overcome this, it is critical to have a linking structure that supports semantic and explicit interlinking of concepts to pieces of text which define, explain, illustrate or elaborate on the concepts [2]. The need of the hour is not only a search engine which offers the best information retrieval tools, but also an interactive, semantic browsing tool that can help knowledge workers navigate vast repositories of knowledge efficiently.
Show more

6 Read more

ISWSE: Islamic Semantic Web Search Engine

ISWSE: Islamic Semantic Web Search Engine

applications with the goal of facilitating the development of knowledge extraction tools for these languages. They presented the ontology devised for structuring the data. The authors also provided the transformation rules implemented in their extraction framework. Al-Yahya and others [20] proposed a computational model for representing Arabic lexicons using ontologies. The ontology development is based on the UPON (Unified Process for ONtology) ontological engineering approach [21]. The ontology was limited to Time nouns which appeared in the Holy Quran and it was consisted of 18 classes and contained a total of 59 words. Abidin and others [22] explored the representation and classification of Holy Quran knowledge by using ontology. The ontology model for Quran was developed according to the Quran knowledge themes as described in Syammil Quran Miracle Reference. For example Iman (Faith) and Akhlaq (Ethics) main classes were chosen as the research scope for constructing the ontology. Saad and others [23] presented an approach for the automatic generation of ontology instances from a collection of unstructured known documents as the Holy Quran. The presented approach was stimulated based on the combination of natural language processing techniques, Information Extraction (IE) and Text Mining techniques.
Show more

7 Read more

Enhancing Web Search by Promoting Multiple Search Engine Use

Enhancing Web Search by Promoting Multiple Search Engine Use

projected onto the Web graph to estimate result quality. Despite their effectiveness at computing result quality, some of techniques depend on relevance judgments, meaning that they cannot scale to unseen queries, and some are computationally expensive, meaning that real-time computation is unfeasible. One key distinction of our work from these approaches is that we directly model relative quality of multiple search result sets instead of the quality of any individual result set. Our framework relies on a classifier to estimate the differences in search result quality between the engines using features computed based on the query and the result pages. Yom-Tov et al. have proposed estimating query difficulty using a machine learning approach based on query-only features, validating it for a distributed IR setting with several collections of newswire documents, rather than Web search as we do in this work. Caption features have already been shown to be important to users in determining which search results to select , and query-caption features have been used in the development of ranking algorithms to improve search . As our empirical results demonstrate, utilizing multiple diverse feature sources is beneficial over query-only features, and is a key performance differentiator for accurate prediction of the most appropriate search engine for a given query in real-time.
Show more

5 Read more

Integrating Semantic Web and Web Mining into Semantic Web Mining

Integrating Semantic Web and Web Mining into Semantic Web Mining

We will first learn an ontology using Web Mining, then fill the ontology with instances by again using Web Mining, and finally mine the resulting data in order to gain further insights. One may split the first step, ontology learning, in two sub-steps. First a concept hierarchy is established using the knowledge acquisition method OntEx (Ontology Exploration). OntEx takes as input a set of concepts, and provides as output a hierarchy on them. This output is then the input to the second sub-step, together with a set of Web pages. In Fig. 3 is described how association rules are mined from this input, which leads to the generation of relations between the ontology concepts.
Show more

8 Read more

AN EFFICIENT APPROACH TO HYBRIDIZE WEB CONTENT, WEB STRUCTURE AND WEB USAGE MINING FOR ENHANCING WEB SEARCH ENGINE RESULTS

AN EFFICIENT APPROACH TO HYBRIDIZE WEB CONTENT, WEB STRUCTURE AND WEB USAGE MINING FOR ENHANCING WEB SEARCH ENGINE RESULTS

Abstract: Search engine has become an important tool in today’s world for searching various data but while searching many users end up with irrelevant information causing a waste in user time and accessing time of the search engine. So to narrow down this problem, many researchers are involved in web mining. Web mining is universal set of Web Structure Mining, Web Usage Mining and Web content Mining. In present scenario web mining is the most active area where the research is going on rapidly. According to literature review most of the research work is focused either on web content, web structure or web usage mining for Enhancing Search Result Delivery. Combine approach of Web Usage, Web Content and Web Structure Mining is not considered for improving the performance of Information Retrieval in web search engine results. In this paper we are proposing an Approach to hybridize web content, web structure & web usage mining for Enhancing Web Search Engine Results Delivery. Finally, the Search result is optimized by re-ranking the result pages.
Show more

12 Read more

Semantic Web Search Engines : A Comparative Survey

Semantic Web Search Engines : A Comparative Survey

Search engines play important role in the success of the Web. Search engine helps the users to find the relevant information on the internet. Due to many problems in traditional search engines has led to the development of semantic web. Semantic web technologies are playing a crucial role in enhancing traditional search, as it work to create machines readable data and focus on metadata. However, it will not replace traditional search engines. In the environment of semantic web, search engine should be more useful and efficient for searching the relevant web information. It is a way to increase the accuracy of information retrieval system. This is possible because semantic web uses software agents; these agents collect the information, perform relevant transactions and interact with physical devices. This paper includes the survey on the prevalent Semantic Search Engines based on their advantages, working and disadvantages and presents a comparative study based on techniques, type of results, crawling, and indexing.
Show more

9 Read more

LODLearning: Enhancing e-Learning content by using Semantic Web technologies

LODLearning: Enhancing e-Learning content by using Semantic Web technologies

LODLearning es nuestro prototipo para la demostraci´on de la hip´otesis de trabajo —la inclusi´on de contenidos relacionados sobre el ya existente per- mite mejorar el aprendizaje de los alumnos—. Esta herramienta se basa en la extracci´on de entidades significativas de los contenidos de los cursos que se encuentren albergados en las plataformas de aprendizaje, para poder incluir nuevo conocimiento al ya presente en el curso. Esta funcionalidad ofrece a los alumnos la oportunidad de aprender nuevo contenido sin dejar la plata- forma, lo que deriva en un aumento de la productividad en cuanto a temas educativos se refiere. Este enriquecimiento de contenidos y la extracci´on de las entidades significativas se realiza por medio de un algoritmo de procesa- miento de lenguaje natural, que devuelve una URI un´ıvoca por cada entidad que luego servir´a para hacer una b´ usqueda en la Web Sem´antica en aras de conseguir nuevos contenidos sobre esas entidades.
Show more

51 Read more

Enhancing access of archives and ranking in web search

Enhancing access of archives and ranking in web search

In recent days, web searching and security of the archives plays most incredible progress. The enduring research prototypes many web search show the result by searching the relevant data alone. Due to the mere relevancy search, the users may loss some useful data which are not included in the search result. Moreover, it also may consume more time by searching the data sequentially. To overcome these challenges stemming process is united with the existing model for searching the both labelled and unlabelled documents. Furthermore, User Based Advertisement (UBA) is included with the proposed search engine to display the advertisements based on search. To improve the ranking system, Time Stamp Based Analysis (TSBA) is incorporated in the process for easy search of users. With these improvements downloading one's file that are uploaded in the web search become quite easy. But security is a major concern sending a request for downloading a data. In order to overcome this difficulty, Email OTP Alert (EOTPA) is provided in the proposed model to increase the security in web search.
Show more

7 Read more

Improving Web Search Relevance with Semantic Features

Improving Web Search Relevance with Semantic Features

In this paper, we propose a systematic approach to modeling semantic features, incorporating con- cept types extracted from query analysis. Ver- tical attributes, such as city-state relationships, metropolitan definition, or idf scores from a do- main specific corpus, are extracted for each con- cept type from vertical database. The vertical at- tributes, together with the concept attributes, are used to compose a set of semantic features for ma- chine learning based IR models. A few machine learning techniques are discussed to further im- prove relevance for subclass of difficult queries such as queries containing multiple types of con- cepts. Figure 1 shows an overview of our ap- proach; after discussing related work in Section 2, we spend Sections 3 to 5 of the paper describing the components of our system. We then evaluate the effectiveness of our approach both using gen- eral queries and with a set of “difficult” queries; our results show that the techniques are robust, and particularly effective for this type of queries. We conclude in Section 7.
Show more

10 Read more

Some reflections on knowledge representation in the semantic web

Some reflections on knowledge representation in the semantic web

DLs and WordNet are major components in developments around the Semantic Web. Despite their differences, both approaches are firmly based on the idea that human knowledge is represented in a hierarchical fashion with the inheritance of properties. This basic proposition seems to lead to the development of simple hierarchies and more extensive ontologies that are “correct” in some strictly logical or accepted scientific sense. It is speculated here that such representations of knowledge may not correspond to the way human beings organise these concepts for everyday purposes.
Show more

9 Read more

Applying the Semantic Web to Manage Knowledge on the Grid

Applying the Semantic Web to Manage Knowledge on the Grid

Abstract: Geodise [2] uses a toolbox of Grid enabled Matlab functions as building blocks on which higher-level problem solving workflows can be built. The aim is to help domain engineers utilize the Grid and engineering design search packages to yield optimized designs more efficiently. In order to capture the knowledge needed to describe the functions & workflows so that they may be best reused by other less experienced engineers we have developed a layered semantic infrastructure. A generic knowledge development and management environment (OntoView) that is used to develop an ontology encapsulating the semantics of the functions and workflows, and that underpins the domain specific components. These include: an annotation mechanism used to associate concepts with functions (Function Annotator); a semantic retrieval mechanism and GUI that allows engineers to locate suitable functions based on a list of ontology-driven searching criteria; and a GUI-based function advisor that uses the functions’ semantic information in order to help function configuration and recommend semantically compatible candidates for function assembly and workflow composition (Domain Script Editor and Workflow Construction Advisor). This paper describes this infrastructure, which we plan to extend to include the semantic reuse of workflows as well as functions.
Show more

8 Read more

Applying the Semantic Web to Manage Knowledge on the Grid

Applying the Semantic Web to Manage Knowledge on the Grid

Domain ontology of EDSO Knowledge Toolbox Workflow Composition Environment (WCE) Domain Script Editor (DSE).. Knowledge Life cycle[r]

21 Read more

A Novel approach to Intelligent Semantic Web Search Engine

A Novel approach to Intelligent Semantic Web Search Engine

Currently many of semantic search engines are developed and implemented in different working environments, and these mechanisms can be put into use to realize present search engines. Alcides Calsavara and Glauco Schmidt propose and define a novel kind of service for the semantic search engine. A semantic search engine stores semantic information about Web resources and is able to solve complex queries, considering as well the context where the Web resource is targeted, and how a semantic search engine may be employed in order to permit clients obtain information about commercial products and services, as well as about sellers and service providers which can be hierarchically organized. Semantic search engines may Sara Cohen Jonathan Mamou et al presented a semantic search engine for XML (XSEarch).It has a simple query language, suitable for a naïve user. It returns semantically related document fragments that satisfy the user‟s query. Query answers are ranked using extended information retrieval techniques and are generated in an order similar to the ranking. Advanced Indexing techniques were developed to facilitate efficient implementation of XSEarch. The performance of the different techniques as well as the recall and the precision were measured experimentally. These experiments indicate that XSEarch is efficient, scalable and ranks quality results highly. Bhagwat and Polyzotis propose a Semantic- based file system search engine- Eureka, which uses an inference model to build the links between files and a File Rank metric to rank the files according to their semantic importance. Eureka has two main parts:
Show more

5 Read more

Semantic Web application to Build celebrities search Website

Semantic Web application to Build celebrities search Website

With the Internet today, however, it’s a huge but very messy data warehouse, so this causes many difficulties for people when finding information in general or looking for a celebrity in particular, on Web. People always encounter a large amount of unnecessary information returned from the search result, therefore, they have to do a deductive task, synthesize and extract the information they need by themselves. The problem is how to make computers help them to process the information automatically so that the exploitation information on the Web is more effective. In reality, the author has researched the Semantic Web program to build the website for finding celebrities.
Show more

5 Read more

NEED OF FUTURE WEB TECHNOLOGY THE SEMANTIC WEB A BRIEF SURVEY

NEED OF FUTURE WEB TECHNOLOGY THE SEMANTIC WEB A BRIEF SURVEY

Many search engines search the keywords given by the user without any processing the keyword and publish the result without prioritization; in some cases these search results mislead the user to unwanted pages. This is because the topic wise search algorithms followed by the search engines these algorithms face problems for processing the user query‟s.for simple query this topic wise search is efficient but in day today life much more complicated intelligent based query arises in this situation these search engines produce vulnerable results. They show inaccurate result or some blind links in most of cases search engines shows “results not found”. In future the topic based search engines we can‟t rely on.
Show more

5 Read more

An Improved Semantic Web-based Search Model for Ecommerce using OWL2

An Improved Semantic Web-based Search Model for Ecommerce using OWL2

This module handles the logical coordination of the entire system. All necessary call to other components and sub modules are being coordinated by this controller. The controller also controls access to the retailer products ontology or database. This enables it to present the user or the online searcher with the result of the search being carried out. This interface was developed to show the results of a product search in [4] model that was developed with OWL and

6 Read more

Show all 10000 documents...