This paper introduces SKOS Core, an RDF vocabulary for expressing the basic structure and content of concept schemes (thesauri, classification schemes, subject heading lists, taxonomies, terminologies, glossaries and other types of controlled vocabulary). SKOS Core is published and maintained by the W3C Semantic Web Best Practices and Deployment Working Group. The main purpose of this paper is to provide an initial basis for establishing clear recommendations for the use of SKOS Core and DCMI Metadata Terms in combination. Also discussed are management policies for SKOS Core and other RDF vocabularies, and the relationship between a “SKOS concept scheme” and an “RDFS/OWL Ontology”.
This paper discusses the use of Dublin Core application profiles at the British Library as part of a resource discovery strategy. It shows how they can be used to control the proliferation of metadata formats in digitisation activity and provide interoperability at a high level between diverse legacy systems. A technical architecture is described. This allows the use of Dublin Core based metadata to support crosssearching of multiple disparate databases.
This paper presents the case for a private (anonymous) personal profile of accessibility needs and preferences expressed in a Dublin Core format. It introduces the idea that this profile, identified only by a URI, is motivated by a desired relationship between a user and a resource or service. It assumes a new Dublin Core term DC:Adaptability and argues that, without any reference to disabilities, personal needs and preferences, including those symptomatic of common physical and cognitive disabilities, context or location, can be described in a common vocabulary to be matched by resource and service capabilities.
Subject classification schemes and vocabularies for subject indexing, i.e. subject vocabularies, have a crucial role in the development of subject gateways. From our experiences on a few subject gateway projects which are designed for regional and domain-specific communities, we learned that the subject gateways require a subject vocabulary which is reasonably small and tailored in accordance with the resources in the domain and the audience.
The goal of this paper is to discuss underlying issues for the small “core” subject vocabularies defined as a subject description/classification scheme for community oriented resources. First, this paper describes some basic aspects for metadata schema and requirements for the region/domain-specific subject gateways. Second, we show three subject gateway projects which are resources designed primarily for libraries and public library users. And then, we show a few examples of small vocabularies designed for regional resources. This paper compares some vocabularies designed for regional resources and discusses issues for the core subject vocabularies.
Costs to develop and maintain the vocabularies can not be neglected even if they are small. We consider the Semantic Web technologies will help develop software tools to support development and maintenance of the subject vocabularies and to enhance their interoperability and reusability.
This paper reports on UPLanT’s (University of North Carolina Plant Language Team) vocabulary solutions, including Project OpenKey vocabulary developments. The paper explores the meaning of vocabulary; discusses plant keys, plant taxonomy, and descriptive vocabulary used for plant identification; introduces UPLanT’s research and development activities and current inquiry. Vocabulary solutions presented include a suite of vocabulary tools, a preliminary process model with steps for the development of vocabulary tools, and guiding principles for the development of descriptive plant vocabulary. This work has been conducted to address the student/scientist vocabulary gap and facilitate student access to primary scientific resources found in education digital initiatives.
Metadata applications have developed local controlled vocabulary to meet information needs of users, but little is known about what vocabularies users use in searching for information. This paper reports the findings from an analysis of a digital library’s query log. The analysis addresses questions of to what extent users use controlled vocabulary in resource discovery and what noncontrolled vocabulary users use in their resource discovery. The authors discuss what is missing between the controlled and noncontrolled vocabulary and how we can integrate user query terms into a learning object vocabulary for improving learning object representation and discovery.
Chinese syntactic parsing is a key of Chinese study and Chinese information processing, as well as difficulty. Chinese syntactic parsing-oriented assistant system will be a good help to it. This paper describes the architecture and functions of this system, and discusses detailedly two important algorithms in implementation, which are bracket matching algorithm and syntactic parsing algorithm. The preliminary experiment result shows that it performs well and it can achieve design goal.
Based on the user’s special motivation of back click, the paper proposes a structure optimization approach of website information organization based on “click stream” data. Its practical foundation is that if users do not find the target page they expected they will click the “back” button to continue, then the back click stream may help to optimize website information organization.
CSSCI System is regarded as one of the important methods on evaluating research level and integrated strength of social science. It has received solid approbation after appearance with its influence amplifying day by day. Meanwhile, short-message platform is founded considering aggrandizing service channels and meeting users’needs. This paper analyzes the reason why we choose ISAPI as solution by the comparison between ISAPI and common B/S schema, and finally gives the realization and explains how to provide service including information retrieval and dispatch to users.
Firstly the article introduces three common texture analysis methods in the content-based image retrieval。A new algorithm which is called run-length accumulating algorithm is presented based on the run-length statistic algorithm. We develop a texture-based image retrieval system. The experiment proves that run-length accumulating algorithm reflects texture feature of image more precisely than run-length statistic algorithm.
Internet contains abundance of education resources. However, for lacking suitable information retrieval tools, many students and teaching staff can’t utilize Internet effectively. In this paper, we propose a web-based education resources topic-focused retrieval system. This system is designed in a way of conjoining keywords and key models and adopts history records based searching strategy, which have enhanced system’s retrieval efficiency and accuracy of education resources.
Comparing the typical patent information analysis software, the article discusses the current status and trends of patent information analysis software. The trends are utilizing text mining technology and information visualization technology, factors cross relationship analysis, combining large network databases with information analysis software.
Aimming at the problem of training and test corpus in text classing, we have built a super classed and denoted corpus, which has abundant field information, scientific class system, extensible storage format and structured semantic denotations. It adapts to the construction of training and test corpus for text classing、topic identify and IR.
Whether the assistant teaching Web could help teachers teach effectively, the first and primary step is to satisfy users with the disposition of the assistant teaching Web. In this paper we present a model of evaluating the satisfaction for using the assistant teaching Web. We apply regression and frequency for evaluating a high school teachers’satisfaction by questionnaire on this model.
To determine the priority of software requirements is important for requirements management. First, this paper introduces some common methods of determining software requirements and presents a determining process of requirement priority. Then, applying SAW(Simple additive weighting) and a case about enterprise ERP developing system, this paper discusses the way and process of determining requirement priority at length. Lastly, this paper presents some viewpoints about the application of SAW.
Off-campus access is a new library service, and it is based on internet and can be achieved by proxy software. The principle is to virtualize the off-campus IP address into a on-campus private IP address. By analyzing and comparing three typical proxy softwares: EZproxy, ISA Server(VPN) and Squid, the article hopes it may be helpful for carrying out the off-campus access in China.
Nowadays, sources in different media emerge in endlessly, and resources integration has become library’s important work. Our library uses uniform access port to integrate all kinds of library resources. By the mean of OPAC searching, users can access both print and digital resources.
This article studies the factors that influence the working time of the composite tape. The test data of several representative tape samples from different domestic and overseas factories are analyzed and compared. It is found that the time stability of amorphous soft magnetic alloy can support the maximum working time of the tape. Meanwhile, we put forward a practical method that matches the chemical and physical properties of the composite tape, and provide the scientific bases for libraries to select the tapes.
With the development of electronic information resource, the use of electronic service in the library has been rapidly increasing. In order to regulate the measurement of the use of electronic service, International Organization for Standardization attaches the statistics of the use of electronic service to ISO2789:2003(E). This paper mainly offers a critical analysis of the standard for statistics of the use of electronic service, intending to provide a reference for domestic libraries in establishing standard for statistics of the use of electronic service.