• Title/Summary/Keyword: Web

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The Effectiveness of the Invisible Web Search Tools (Invisible Web 탐색도구의 성능 비교 및 분석)

  • Ro, Jung-Soon
    • Journal of the Korean Society for information Management
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    • v.21 no.3
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    • pp.203-225
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    • 2004
  • This study is to investigate the characteristics of the Invisible Web and many search services designed to serve as gateways to the Invisible Web and to evaluate searching the Invisible Web in the Services. The four services for searching the Invisible Web were selected to search the Invisible Web with 11 queries, that are Google as portals, ProFusion and Search.com as Invisible Web meta search engines, and IncyWincy as Invisible Web search engines. It was found that the effectiveness of Google's Invisible Web searching was better compared with the three Invisible Web search tools but the difference between the four systems was not significant((${\alpha}$=.055) The Invisible Web meta searching was better than the Web meta searching in the three search tools at the statistically significant level. The effectiveness measurement based on the ranks and relevance degree(quality) of relevant documents retrieved seemed appropriate to the ranked search results.

The Implementation of the Web Service for the Conversion of Speech-Recognition Web Page (음성인식용 웹페이지 변환을 위한 웹서비스 구현)

  • Oh, Jee-Young;Kim, Yoon-Joong
    • Journal of Korea Multimedia Society
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    • v.7 no.8
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    • pp.1162-1169
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    • 2004
  • This paper implemented the web service that converts general web page to the web page using the speech recognition and the web service consumer that provides speech recognition service for the web page. This system has the web service consumer, the web service provider that converts the web page and the web service provider that provides speech recognition. The web service provider that converts the web page analyzes general web page by using the regular expression and converts it to the speech-recognition web page. The speech recognizer is the web service providers that implemented in the previous study. As a result of experiment, we show that this system changes web page by analyzing tags and extracts hyperlink.

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WebGen: a Template-based Web Script Generator (WebGen: 템플릿 기반 웹 스크립트 생성기)

  • Eum, Doo-Hun
    • The KIPS Transactions:PartD
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    • v.14D no.5
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    • pp.509-516
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    • 2007
  • The demand for Web applications that un on databases has been rapidly increased in every area including business. Comparing to this growing demand, it still takes much time to write and maintain Web applications. In this paper, we introduce the Web script generator, WebGen that generates the Web forms as application interface and the Web scripts that process the queries by the forms operating with a database. WebGen generates five Web scripts(Search, Select, Edit, Information, and Action) from built-in templates that are the frames for those scripts by applying the declarative contents of a user-written configuration file. Each script except the Action script generates a corresponding form as user interface. Therefore, WebGen enhances Web application productivity by reducing the development time and effort for Web applications. Unlike the commercial Web script generators, WebGen supports easy version management because it is based on independent templates. Moreover, a WebGen-generated form includes not only the interested entity but also the entities that are related directly and indirectly with the interested entity.

Value Ecosystems of Web Services : Benefits and Costs of Web as a Prosuming Service Platform (Web1.0과 프로슈밍기반 Web2.0 서비스 가치생태계 비교)

  • Kim, Do-Hoon
    • Journal of the Korean Operations Research and Management Science Society
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    • v.36 no.4
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    • pp.43-61
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    • 2011
  • We first develop a value ecosystem framework to model the SDP(Service Delivery Process) of web services. Since the web service has been evolving from the basic web architecture (e.g., traditional world wide web) to a prosuming platform based on virtualization technologies, the proposed framework of the value ecosystem focuses on capturing the key characteristics of SDP in each type of web services. Even though they share the basic elements such as PP(Platform Provider), CA(Customization Agency) and user group, the SDP in the traditional web services (so-called Web1.0 in this paper) is quite different from the most recent one (so-called Web2.0). In our value ecosystem, users are uniformly distributed over (0, ${\Delta}$), where ${\Delta}$��represents the variety level of users' preference on the web service level. PP and CA provide a standard level of web service(s) and prosuming service package, respectively. CA in Web1.0 presents a standard customization package($s_a$) at flat rate c, whereas PP and CA collaborate and provide customization service with a usage-based scheme. We employ a multi-stage game model to analyze and compare the SDPs in Web1.0 and Web2.0. Our findings through analysis and numerical simulations are as follows. First, the user group is consecutively segmented, and the pattern of the segmentations varies across Web1.0 and Web2.0. The standardized service level s (from PP) is higher in Web1.0, whereas the amount of information created in the value ecosystem is bigger in Web2.0. This indicates the role of CA would be increasingly critical in Web2.0: in particular, for fulfilling the needs of prosuming and service customization.

A study on the evaluation and improvement of web accessibility and usability of Korea government department websites (국내 중앙행정기관 웹사이트의 접근성과 사용성 평가 및 개선방안 연구)

  • Moon, Tae-Eun;Moon, Hyung-Nam
    • 한국경영정보학회:학술대회논문집
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    • pp.786-793
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    • 2008
  • This research is carried out being divided into a first evaluation and second evaluation. A Study is carried out on first, the accessibility compliance level of Korea government department websites and second, whether the site which complies well with web accessibility increases web usability for users through a web usability evaluation. The evaluation result, web sites which comply well with the web accessibility guidelines were observed to increase web usability for both normal and disabled people but web sites which do not comply well were observed to lower the web usability making the web sites unavailable or inconvenient to use. Therefore, it can be concluded that there is a very close interrelationship between web accessibility and usability and thus compliance with web accessibility is not an option but a mandatory requirement.

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A QoS-aware Web Services Selection for Reliable Web Service Composition

  • Nasridinov, Aziz;Byun, Jeongyong
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.586-589
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    • 2012
  • Web Services have been utilized in a wide variety of applications and have turned into a key technology in developing business operations on the Web. Originally, Web Services can be exploited in an isolated form, however when no single Web Service can satisfy the functionality required by a user, there should be a possibility to compose existing services together in order to fulfill the user requirement. However, since the same service may be offered by different providers with different non-functional Quality of Service (QoS), the task of service selection for Web Service composition is becoming complicated. Also, as Web Services are inherently unreliable, how to deliver reliable Web Services composition over unreliable Web Services should be considered while composing Web Services. In this paper, we propose an approach on a QoS-aware Web Service selection for reliable Web Service composition. In our approach, we select and classify Web Services using Decision Tree based on QoS attributes provided by the client. Service classifier will improve selection of relevant Web Services early in the composition process and also provide flexibility to replace a failed Web Services with a redundant alternative Web Services, resulting in high availability and reliability of Web Service composition. We will provide an implementation of our proposed approach along with efficiency measurements through performance evaluation.

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An Effective Mobile Web Object Navigation Based on the Steiner Tree Approach (스타이너트리 기반의 효과적인 모바일 웹 오브젝트 네비게이션)

  • Lee, Woo-Key;Song, Justin Jong-Su;Lee, James J.H.
    • Korean Management Science Review
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    • v.28 no.1
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    • pp.1-10
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    • 2011
  • One of the fundamental roles of web object navigation is to support what the user wants precisely and efficiently from the enormous web database to the web browser. As long as the web search results are a set of individual lists, it is all right to display each and every web result for the web browser to display a web object one by one. However, in case the search results are a collection of multiple interrelated web objects, then there is a need to represent for a new mechanism for linked web objects at a time. We define a unit of web objects derived from a Steiner tree where the web objects include a set of specific keywords calculated by the weight from which the solutions are extracted. Even if a web object does not include all the keywords, then the related hypertext linked web objects are derived and displayed onto the mobile web browser with meta data in one shot. In this paper, it is applied for the mobile browser that the web contents can dynamically be displayed with Steiner trees until each renewal of the navigation request may be issued. In this paper, a new synchronized mobile browsing method is developed so that the navigating time can drastically be reduced and the web navigating efficiency can be dramatically enhanced without sacrificing memory consumption.

Design and Implementation of Server-Based Web Reader kWebAnywhere (서버 기반 웹 리더 kWebAnywhere의 설계 및 구현)

  • Yun, Young-Sun
    • Phonetics and Speech Sciences
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    • v.5 no.4
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    • pp.217-225
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    • 2013
  • This paper describes the design and implementation of the kWebAnywhere system based on WebAnywhere, which assists people with severely diminished eye sight and the blind people to access Internet information through Web interfaces. The WebAnywhere is a server-based web reader which reads aloud the web contents using TTS(text-to-speech) technology on the Internet without installing any software on the client's system. The system can be used in general web browsers using a built-in audio function, for blind users who are unable to afford to use a screen reader and for web developers to design web accessibility. However, the WebAnywhere is limited to supporting only a single language and cannot be applied to Korean web contents directly. Thus, in this paper, we modified the WebAnywhere to serve multiple language contents written in both English and Korean texts. The modified WebAnywhere system is called kWebAnywhere to differentiate it with the original system. The kWebAnywhere system is modified to support the Korean TTS system, VoiceText$^{TM}$, and to include user interface to control the parameters of the TTS system. Because the VoiceText$^{TM}$ system does not support the Festival API used in the WebAnywhere, we developed the Festival Wrapper to transform the VoiceText$^{TM}$'s private APIs to the Festival APIs in order to communicate with the WebAnywhere engine. We expect that the developed system can help people with severely diminished eye sight and the blind people to access the internet contents easily.

Intelligent Web Crawler for Supporting Big Data Analysis Services (빅데이터 분석 서비스 지원을 위한 지능형 웹 크롤러)

  • Seo, Dongmin;Jung, Hanmin
    • The Journal of the Korea Contents Association
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    • v.13 no.12
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    • pp.575-584
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    • 2013
  • Data types used for big-data analysis are very widely, such as news, blog, SNS, papers, patents, sensed data, and etc. Particularly, the utilization of web documents offering reliable data in real time is increasing gradually. And web crawlers that collect web documents automatically have grown in importance because big-data is being used in many different fields and web data are growing exponentially every year. However, existing web crawlers can't collect whole web documents in a web site because existing web crawlers collect web documents with only URLs included in web documents collected in some web sites. Also, existing web crawlers can collect web documents collected by other web crawlers already because information about web documents collected in each web crawler isn't efficiently managed between web crawlers. Therefore, this paper proposed a distributed web crawler. To resolve the problems of existing web crawler, the proposed web crawler collects web documents by RSS of each web site and Google search API. And the web crawler provides fast crawling performance by a client-server model based on RMI and NIO that minimize network traffic. Furthermore, the web crawler extracts core content from a web document by a keyword similarity comparison on tags included in a web documents. Finally, to verify the superiority of our web crawler, we compare our web crawler with existing web crawlers in various experiments.

Genie: A Semantic Web Services Composition System base on Ontology (Genie: 온톨로지 기반 시맨틱 웹 서비스 합성 시스템)

  • 오지훈;시대근;정영식;한성국
    • Journal of KIISE:Computing Practices and Letters
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    • v.10 no.5
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    • pp.394-405
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    • 2004
  • To make Web Services the real applications, the efficient mechanisms for Web Services discovery, Web Services composition and Web Services execution must be provided. Among these issues, especially, Web Services composition plays the key roles in Web Services applications that are loosely coupled and composed applications consisted of primitive Web Service components. In this paper we demonstrate a new Web Service composition approach using ontologies. We apply ontologies to describe Web Services information such as Web Services input/output parameters, pre conditions, post conditions and other necessary management information. In this paper, we also introduce Action ontology and Object ontology to describe the functional properties of Web Services These ontologies offer semantic description of Web Services functionalities beyond the limitation of the current WSDL. We can achieve semantic interoperabilities between heterogeneous Web Services in terms of conceptual processing and realize semantic services composition. We implement semantic Web Services composition system called Genie based on service description ontologies.