Directory Service Research Articles

Research for Distributed Automatic Test System

Along with the development of computer and network technology, a distributed automatic test system works in a local area network is on the date. There are very great significance to investigate the follow topics, how to manage the resource in the ATS, how to find and drive the instrument in the ATS. This article combines the technology of distributed component object model and active directory Service, realized an open test system architecture.

Cognitive Agent Based Identification of Relevant Auctions in Mobile E-commerce

The increased attention of E-auction services in mobile E-commerce demands an approach to identify the relevant auctions as per the bidder’s requirements so as to increase the bidder satisfaction level and auction winning probability. In this paper, we propose an intelligent agent based model to identify the relevant set of auctions for a mobile bidder based on the bidder’s requirements, preferences and constraints from a set of active auctions available in the active auction service directory in regional gateway connected to Internet. The agent functions are based on Belief, Desire and Intention (BDI) cognitive architecture and are capable of taking dynamic decisions to search the matching auctions for the products requested by the bidder in the bidder belief set located in the bidder’s mobile device and/or in the case base of the regional gateway. If matching auctions are not found in either of them, BDI agent searches them in the active auction service directory and computes the relevance factor based on the parameters in the bidder’s requirements for all the matching active auctions and clusters into relevant (or potential) and non relevant auctions. The model is simulated to test the performance measures like availability of relevant auctions, average response time, and probability of winning auctions with better satisfaction. The proposed model is also compared with advertisement based auction service discovery model to show its effectiveness.

Vehicular networks and the future of the mobile internet

The first DARPA experiment with wireless mobile Internet – the Packet Radio Network or PRNET – was completely independent of the infrastructure. This model was consistent with DARPA military goals as the PRNET was designed to support tactical operations far away from any wired infrastructure. Beside autonomy, the main challenge was mobility and radio portability. Scarcity of spectrum was not an issue, in contrast with the ARPANET quest to utilize those 50 kbps Telpak trunks more efficiently. Today, the closest civilian descendents of the PRNET are vehicular networks and smart phone based Personal Area Networks. In either case, the wired infrastructure turns out to play a major role. Moreover, spectrum scarcity has now become the most important challenge (while, ironically, the wired Internet has plenty of bandwidth). In this paper we examine this interplay between wired and wireless and extract a message for the design of a more efficient Future Wireless Internet. We focus on the vehicular network since this field is better established and commercially more viable than that of personal, P2P communications among Smartphones. We are confident however that many of our observations will transfer also to smart phone/infrastructure synergy. Specifically, in this paper we identify the urban Internet infrastructure role in the support of emerging vehicular applications and identify the Core Internet services matching the services in the vehicle grid. As the vehicular applications range from e-mail and voice over IP to emergency operations (natural disaster, terrorist attack, etc.), the type of assistance requested from the infrastructure will vary. A short list includes: (a) addressing (e.g. geo-addressing); (b) directory service, service discovery, mobility management; (c) resource and congestion management; (d) path redundancy; (e) delay tolerant operations; (f) mobile sensor data access and search from the internet, and; (g) anonymity, privacy and incentives. After the review of vehicular applications and properties, we will offer an Internet history perspective to help understand how the mobile wireless network field has evolved from the early ARPANET and PRNET days. This will reveal trends that can help predict the future of the wireless Internet.

Back to Basics: Understanding Operating Systems and Network Operating Systems

Back to Basics: Understanding Operating Systems and Network Operating Systems

Lifecycle of a Project: The Maryland Health → Go Local Experience

In 2006, the University of Maryland Health Sciences and Human Services Library launched Maryland Health → Go Local, a Web-based directory of local health-related services developed in partnership with the National Library of Medicine (NLM). NLM recently completed a thorough evaluation of the more than 30 nationwide Go Local projects and determined that the program was not meeting its return on investment. The program will be phased out. This article focuses on the process of creating Maryland Health → Go Local, including staffing, database development, promotion, maintenance, evaluation, and funding, and addresses phasing out the project.

Directory of Human Genetic Services in India - 2007

(2010). Directory of Human Genetic Services in India - 2007. International Journal of Human Genetics: Vol. 10, Special Issue: Chromosomal Abnormalities Recorded from India, pp. 187-192.

A consideration on R&D direction for future Internet architecture

AbstractThe professional Internet system has been operated for more than 20 years, while preserving the continuous introduction of technical innovations. The Internet architecture, of course including the future Internet, must preserve the following five essential features of the Internet architecture. These are (1) autonomous, (2) distributed, (3) disconnected, (4) inter‐domain, and (5) global operation. The current Internet system is challenged by the following three aspects; global, ubiquitous and mobility.ISOC, Internet Society (www.isoc.org), has initiated the strategic initiative that is focusing on ‘Trust and Identifier’. We must re‐design the identifier, directory service, trust model, routing and communication model for the computer system and for the computer networks. For example, Delay Tolerant Networking or Peer‐to‐Peer system architecture would challenge the introduction of new technological frameworks to the existing Internet. Finally, this paper discusses how to build and how to deploy the future Internet infrastructure. Copyright © 2010 John Wiley & Sons, Ltd.

Directory of Human Genetic Services in India - 2007

(2010). Directory of Human Genetic Services in India - 2007. International Journal of Human Genetics: Vol. 10, Special Issue: Chromosomal Abnormalities Recorded from India, pp. 187-192.

Therapeutic hypothermia after cardiac arrest – implementation in UK intensive care units*

A telephone survey was carried out to determine how many United Kingdom intensive care units were using therapeutic hypothermia as part of their management of unconscious patients admitted after cardiac arrest. All 247 intensive care units listed in the 2008 Directory of Critical Care Services were contacted to determine how many units were using hypothermia as part of their post-cardiac arrest management and how it was implemented. We obtained information from 243 (98.4%) of the intensive care units. At the time of the study, 208 (85.6%) were using hypothermia as part of post-cardiac arrest management. There has been a steady increase annually in the number of units performing therapeutic cooling from 2003 to date, with the majority of units starting in 2007 or 2008. The International Liaison Committee on Resuscitation guidelines, which recommend the use of therapeutic hypothermia for comatose patients following successful resuscitation from cardiac arrest, have taken at least 4-5 years to achieve widespread implementation in the United Kingdom.

Web Page Classification using Anchor-related Text Extracted by a DOM-based Method

Directory services are popular among people who search their favorite information on the Web. Those services provide hierarchical categories for finding a user's favorite page. Pages on the Web are categorized into one of the categories by hand. Many existing studies classify a web page by using text in the page. Recently, some studies use text not only from a target page which they want to categorize, but also from the original pages which link to the target page. We have to narrow down the text part in the original pages, because they include many text parts that are not related to the target page. However these studies always use a unique extraction method for all pages. Although web pages usually differ so much in their formats, they do not change their extraction methods. We have already developed an extraction method of anchor-related text. We use text parts extracted by our method for classifying web pages. The results of the experiments showed that our extraction method improves the classification accuracy.

A Framework for the Prioritization of Investment in the Provision of Genetic Tests

Background: The UK Genetic Testing Network (UKGTN) established a process for the evaluation of genetic tests for entry onto the National Health Service (NHS) Directory of Molecular Genetic Testing. The Network requested the development and piloting of a prioritization framework that could be used for the commissioning of genetic tests by the NHS. Methods: A selected working group developed and piloted a multi-criteria prioritization process using 10 genetic tests evaluated by the UKGTN. Results: The framework was able to rank the 10 genetic tests used in the pilot. The rankings were also consistent with the commissioning recommendations for these genetic tests by the UKGTN. Conclusion:A set of criteria for the prioritization of genetic tests has been developed. The results from the pilot suggest that the methodology is valid and robust but requires considerable resources to implement. Further development of the process is needed before the framework could be used to influence commissioning decisions for clinical genetic services in the NHS.

Real-time Analysis of Time-based Usability and Accessibility for Human Mobile-Web Interactions in the Ubiquitous Internet

In the ubiquitous Internet, human mobile-web interactions can be evaluated with real-time analysis of time-based usability and accessibility with the different types of mobile Internet devices including smart phones (e.g. iPhone, Android phone, etc.). A ubiquitous mobile-web interaction server, accessible with a variety of mobile Internet devices, could be a unified estimation hub in real-time analysis of human-centric mobile-web interactions. We propose the real-time analysis scheme based on real-time estimation of time-based usability and accessibility for human mobile-web interactions with a name-based directory server for social networking in the ubiquitous Internet environment. We present an implementation of a ubiquitous mobile-web directory service and discuss our approach with some empirical results.

Information query based on semantic association in grid environment

To meet the information query for the rapidly increasing resource information in grid,a arithmetic of resource information query matching based on metadata semantic association in the discover system of Metadata Directory Service(MDS) was proposed,after the disadvantage of the information service system MDS in grid environment was analyzed.Experimental results show that the arithmetic not only can implement information query in grid environment,but also can improve efficiency of resource information query compared the information query based on directory and semantic association.

유사과제파악을 위한 검색 알고리즘의 개발에 관한 연구

국가적으로 그리고 각 연구기관에서는 투자의 효율성을 기하기 위하여 연구사업 선정과정에서 데이터베이스로부터 중복과제 혹은 유사과제를 검색하는 과정을 거친다. 최근 부얼리언 기반의 키워드 매칭 검색알고리즘의 발전 및 이를 채택한 검색엔진의 개발로 인하여 검색의 정확도가 많이 향상되었지만, 사용자가 입력하는 제한된 수의 키워드들에 의한 검색은 유사과제 파악과 우선순위의 결정에 어려움이 있다. 본 연구에서는 제안된 과제의 문서를 분석하여 다수의 색인어들을 추출하고, 이들에게 가중치를 부여한 후, 기존의 문서들과 비교하여 유사과제를 찾아내는 문서단위의 검색 알고리즘을 제안한다. 구체적으로 벡터공간검색(Vector-Space Retrieval)모델의 한 종류인 TFIDF(Term Frequency Inverse document Frequency)를 기본 구조로 채택한다. 또한 개발되는 알고리즘에는 연구과제 제안문서의 구조에 적합한 속성별 가중치(feature weighting)를 반영하고 검색속도의 향상을 위하여 K-최근접 문서(KNN: K-Nearest Neighbors) 기법도 반영한 알고리즘을 제시한다. 실험을 위하여 실제 연구제안 문서와 구조가 동일한 기존의 보고서를 사용하였는데, KISTI에서 운영하는 과학기술정보포털서비스인 NDSL에서 이미 분류해 놓은 4분야의 1,000 개 연구 보고서 문서를 발췌하여 실험을 하였다. To avoid the redundant investment on the project selection process, it is necessary to check whether the submitted research topics have been proposed or carried out at other institutions before. This is possible through the search engines adopted by the keyword matching algorithm which is based on boolean techniques in national-sized research results database. Even though the accuracy and speed of information retrieval have been improved, they still have fundamental limits caused by keyword matching. This paper examines implemented TFIDF-based algorithm, and shows an experiment in search engine to retrieve and give the order of priority for similar and redundant documents compared with research proposals, In addition to generic TFIDF algorithm, feature weighting and K-Nearest Neighbors classification methods are implemented in this algorithm. The documents are extracted from NDSL(National Digital Science Library) web directory service to test the algorithm.

Accessibility and Usability of User-centric Web Interaction with a Unified-Ubiquitous Name-based Directory Service

Web-based information services should be evaluated for accessibility and usability with various types of Internet Web-browsing devices, interacting with web information servers including directory server. A ubiquitous name-based directory server, accessible and usable with a variety of Web-browsing devices (e.g. Internet-capable mobile phones), could be a unified center for human-centric Web interaction services as well as for business models based on personalized services. We studied the accessibility and usability in user-centric Web interaction with a unified-ubiquitous name-based directory service, as metric metadata for real-time estimation. We studied the real-time metrics in synthetic approach for comparison among different services. We show empirical results based on implementation and experiments in Korea, Japan and China.

The interface between the MOKKA decision-support tool and EUGRIS: an integrated approach

The MOKKA project comprised a range of activities to develop innovation in contaminated land risk assessment and risk reduction, and procedures for the control, verification and validation of new methods. One of these activities was the development of a decision-support tool (DST) to assist contaminated land managers. The MOKKA DST team cooperated closely with EUGRIS, an existing European information system to provide MOKKA with: a. a large library of information already compiled; b. a working and well-trafficked information dissemination route, which can be closely co-ordinated with the aims of MOKKA; c. a route for collating information from currently active projects; d. directory services for organizations and individuals. The paper discusses how the two systems are linked, and how linking benefits the MOKKA DST. The main points of synergy between MOKKA and EUGRIS are: a. Allowing the MOKKA DST to access the international state of the art. b. Providing an information resource, which the producers of the MOKKA technical databases and fact-sheets can ‘data-mine’ to collect reference materials to support their work. c. Presenting a wide range of information already compiled on EUGRIS in a format that is userfriendly to a Hungarian audience. d. Promoting Hungarian projects, outputs, systems, expertise and organizations to a wider European audience. e. Using the existing EUGRIS glossary system as a starting point for MOKKA’s own dictionaries and also enhance the EUGRIS audience’s understanding of Hungarian technical terminology and regulatory/policy terms. f. Supplying supplementary supporting information to DST outputs, such as relevant document links, case studies, R&D projects, and also wider searching/advice.

Research into a resource directory service based on Grid RLS

At present, massive amounts of data are distributed across different institutions, departments and scientific research institutes, and even at one site can be stored in heterogeneous storage systems. Therefore, it is hard to get the desired information from the massive data resource, which leads to the requirement of data sharing. In an effort to solve this problem, this paper studies Grid technology and RLS, for sharing remote sensing data. Furthermore, a resource directory service has been designed and implemented by using RLS in the Grid environment.

Secure Electronic Marketplaces Based on the Multi Agent System Avalanche

The future of electronic commerce will be shaped by open, heterogeneous and complex structures, consisting of many independent marketplaces. For conducting transactions, businesses have to be present at many of these marketplaces all over the Internet. But software agents, who interact and negotiate on behalf of their human (or organizational) principals, can act as representatives here. The multi-agent system AVALANCHE is a prototype for an agent based secure electronic commerce marketplace environment. The processes are coordinated by the use of autonomous, self-interested software agents, representing consumers and small businesses. The marketplace itself offers a directory service, but never actively influences the agents' activities. The agents communicate by passing messages bilaterally using an iterated contract-net protocol. Businesses who try to sell and buy goods first configure a (mobile) agent in their web browser or PDA and send it to any electronic marketplace to negotiate autonomously. In case that the agent's demand is not met, it can move to other marketplaces in search for a better offer or demand situation. If the agent finds a promising situation, it automatically starts a negotiation process, which will eventually lead to a market transaction. The software agents are able to adapt their changing environment to their negotiation strategies through the use of evolutionary algorithms. Since the agents are conducting their businesses over an open and insecure network, some technical security mechanisms have been implemented. The code-obfuscated agents digitally sign their offers and encrypt their messages. But the self-interested behavior of the agents demands additional mechanisms, which exceed technical security, to ensure co-operational behavior. Currently a reputation tracking mechanism is implemented that evaluates a partner's former transaction behavior and thus influences both partner selection and negotiation strategy for future transactions. In case that an agent plans to conduct a transaction with an unknown agent, it may be able to source the reputation information from either the marketplace or other known agents, depending on the system of information collection, storage, and distribution. This rating of reputation is then updated during the settlement phase of any transaction.

Localized Distance-Sensitive Service Discovery in Wireless Sensor and Actor Networks

We formalize the distance-sensitive service discovery problem in wireless sensor and actor networks, and propose a novel localized algorithm, iMesh. Unlike existing solutions, iMesh uses no global computation and generates constant per-node storage load. In iMesh, new service providers (i.e., actors) publish their location information in four directions, updating an information mesh. Information propagation for relatively remote services is restricted by a blocking rule, which also updates the mesh structure. Based on an extension rule, nodes along mesh edges may further advertise newly arrived relatively near service by backward distance-limited transmissions, replacing previously closer service location. The final information mesh is a planar structure constituted by the information propagation paths. It stores locations of all the service providers and serves as service directory. Service consumers (i.e., sensors) conduct a lookup process restricted within their home mesh cells to discover nearby services. We analytically study the properties of iMesh including construction cost and distance sensitivity over a static network model. We evaluate its performance in static/dynamic network scenarios through extensive simulation. Simulation results verify our theoretical findings and show that iMesh guarantees nearby (closest) service selection with very high probability, Gt99 percent (respectively, Gt95 percent).

Environmental Information Sources: Websites and Books

EGJ Issue 28 Spring 2009 ISSN 1076-7975 Environmental Resources: Web Sites and Books Flora Shrode, Utah State University Library, USA Web Sites are listed in the following categories: Commercial Entities Educational Sites International Sites Nonprofit & Research Organizations U.S. Federal Agencies’ and State Government Sites Books Commercial Entities ConsumerReports.org: Saving on energy costs http://www.consumerreports.org/cro/home-garden/resource-center/saving-on- energy-costs-10-07/overview/energy-ov.htm Lists 10 actions that individuals can take to save energy costs based on Consumer Reports’ experts’ testing of products and programs designed to save energy and pointing out those “that promise more than they deliver.” Financial Times: Climate Change Series http://www.ft.com/climatechangeseries From the website for the U.K. newspaper, the Financial Times, this news series looks at the politics of climate change. Includes stories related to the developed world and emerging economies, opinion pieces, and interactive features on climate change agreement and mapping carbon dioxide emissions. Provides links to stories on the science aspects of global warming. *** GreenHomeGuide http://www.greenhomeguide.com/ This website from the U.S. Green Building Council features a combination of tips, case studies, expert Q&A articles and regional directories of products and services. Browse by area or feature of the home, such as bathrooms or flooring. A product directory (covering San Francisco Bay Area, Los Angeles, and New York City) provides a detailed description of the process of selecting and approving the products included in it, noting that only a minority of products are approved. *** Educational Sites American Museum of Natural History: Science Bulletins http://www.amnh.org/sciencebulletins/ This website stands in for visiting the American Museum of Natural History in person in New York City. Online video features present developments in the fields of astrophysics, human biology, biodiversity, and evolution. Science educators can benefit from guides on the website to help them incorporate content from the Science Bulletins in their teaching and classroom learning activities.*