Search results

1 – 10 of over 40000
Article
Publication date: 2 February 2015

Milorad Pantelija Stevic, Branko Milosavljevic and Branko Rade Perisic

Current e-learning platforms are based on relational database management systems (RDBMS) and are well suited for handling structured data. However, it is expected from…

1084

Abstract

Purpose

Current e-learning platforms are based on relational database management systems (RDBMS) and are well suited for handling structured data. However, it is expected from e-learning solutions to efficiently handle unstructured data as well. The purpose of this paper is to show an alternative to current solutions for unstructured data management.

Design/methodology/approach

Current repository-based solution for file management was compared to MongoDB architecture according to their functionalities and characteristics. This included several categories: data integrity, hardware acquisition, processing files, availability, handling concurrent users, partition tolerance, disaster recovery, backup policies and scalability.

Findings

This paper shows that it is possible to improve e-learning platform capabilities by implementing a hybrid database architecture that incorporates RDBMS for handling structured data and MongoDB database system for handling unstructured data.

Research limitations/implications

The study shows an acceptable adoption of MongoDB inside a service-oriented architecture (SOA) for enhancing e-learning solutions.

Practical implications

This research enables an efficient file handling not only for e-learning systems, but also for any system where file handling is needed.

Originality/value

It is expected that future single/joint e-learning initiatives will need to manage huge amount of files and they will require effective file handling solution. The new architecture solution for file handling is offered in this paper: it is different from current solutions because it is less expensive, more efficient, more flexible and requires less administrative and development effort for building and maintaining.

Details

Program, vol. 49 no. 1
Type: Research Article
ISSN: 0033-0337

Keywords

Article
Publication date: 1 March 1985

Leota S. Boesen

4–1–1 is well‐suited for situations where numerous documents stored on a hard disk need to be organized and categorized for expedient retrieval. It is excellent for…

Abstract

4–1–1 is well‐suited for situations where numerous documents stored on a hard disk need to be organized and categorized for expedient retrieval. It is excellent for handling such files as those for correspondence, personnel and budget management. 4–1–1's interactive search capabilities and document security features will be particularly attractive to those who handle confidential material. By maintaining 4–1–1's catalog conscientiously, it is possible to eliminate, or at least diminish the number of paper copies of records kept in vertical files.

Details

The Electronic Library, vol. 3 no. 3
Type: Research Article
ISSN: 0264-0473

Article
Publication date: 22 February 2008

Ylva Gavel and Lars O.A. Hedlund

The purpose of this paper is to describe how SAGA, a system for managing the library operations associated with document supply, was successfully developed using a very…

647

Abstract

Purpose

The purpose of this paper is to describe how SAGA, a system for managing the library operations associated with document supply, was successfully developed using a very informal project model.

Design/methodology/approach

The project model and system architecture are described.

Findings

Initially, SAGA was tailored for the needs of the medical library at Karolinska Institutet in Sweden. Subsequently, it has been implemented at other Swedish academic libraries. The system has features for automating the workflows associated with document supply for both loans and copies externally and internally. It integrates document requests from a diversity of ordering systems under a single interface. The methodology adopted when implementing the system suggests that an incremental approach sometimes has benefits over a more formal pre‐planned approach.

Practical implications

The project model described may be applied to development projects at other libraries. The system architecture may be applied to other systems for managing document supply.

Originality/value

The SAGA approach relies on managing requests placed in different systems via a single interface rather than trying to direct customers to a single ordering system.

Details

Interlending & Document Supply, vol. 36 no. 1
Type: Research Article
ISSN: 0264-1615

Keywords

Article
Publication date: 14 June 2013

Atsushi Keyaki, Jun Miyazaki, Kenji Hatano, Goshiro Yamamoto, Takafumi Taketomi and Hirokazu Kato

The purpose of this paper is to propose methods for fast incremental indexing with effective and efficient query processing in XML element retrieval. The effectiveness of…

Abstract

Purpose

The purpose of this paper is to propose methods for fast incremental indexing with effective and efficient query processing in XML element retrieval. The effectiveness of a search system becomes lower if document updates are not handled when these occur frequently on the Web. The search accuracy is also reduced if drastic changes in document statistics are not managed. However, existing studies of XML element retrieval do not consider document updates, although these studies have attained both effectiveness and efficiency in query processing. Thus, the authors add a function for handling document updates to the existing techniques for XML element retrieval.

Design/methodology/approach

Though it will be important to enable fast updates of indices, preliminary experiments have shown that a simple incremental update approach has two problems: some kinds of statistics are inaccurate, and it takes a long time to update indices. Therefore, two methods are proposed: one to approximate term weights accurately with a small number of documents, even for dynamically changing statistics; and the other to eliminate unnecessary update targets.

Findings

Experimental results show that this proposed system can update indices up to 32 per cent faster than the simple incremental updates while the search accuracy improved by 4 per cent compared with the simple approach. The proposed methods can also be fast and accurate in query processing, even if document statistics change drastically.

Originality/value

The paper shows that there could be a more practical XML element search engine, which can access the latest XML documents accurately and efficiently.

Details

International Journal of Web Information Systems, vol. 9 no. 2
Type: Research Article
ISSN: 1744-0084

Keywords

Article
Publication date: 1 May 1996

Sandra P. Price, Anne Morris and J. Eric Davies

This paper presents an overview of past and present research projects associated with electronic document delivery. The paper briefly outlines the Follet Report and…

Abstract

This paper presents an overview of past and present research projects associated with electronic document delivery. The paper briefly outlines the Follet Report and introduces the UK's Electronics Libraries Programme, including the recently funded Focused Investigation of Document Delivery (FIDDO) project at Loughborough University. Four research areas have been identified as follows: resource sharing projects; network communication projects; electronic scanning projects and electronic document delivery systems. Conclusions highlight the major impact that technological developments are currently having on this area, the need for librarians to reassess their role in the information chain, and the need for delivery systems capable of handling different formats and a wider coverage of material to satisfy requests.

Details

The Electronic Library, vol. 14 no. 5
Type: Research Article
ISSN: 0264-0473

Article
Publication date: 1 January 1994

Hans Roes and Joost Dijkstra

Electronic document delivery is a concept which promises to solve end‐user problems in retrieving the primary information referenced to in bibliographical databases. This…

Abstract

Electronic document delivery is a concept which promises to solve end‐user problems in retrieving the primary information referenced to in bibliographical databases. This article describes an approach to electronic document delivery which gradually evolved at Tilburg University over the past two years, leading to the development of a system called Ariadne. First of all, a pragmatic description of electronic document delivery is developed as a basis for a generation model of electronic document delivery systems. This model is illustrated with short references to existing systems and leads to the identification of global requirements for an Ariadne‐like system. Special attention will be paid to existing and developing standards in this field, notably the work of the Group on Electronic Document Interchange (GEDI). The remainder of the article addresses the general model of Ariadne, currently under development at Tilburg University. The article concludes with some strategic issues for libraries and publishers in this field, and a short look into the future.

Details

The Electronic Library, vol. 12 no. 1
Type: Research Article
ISSN: 0264-0473

Article
Publication date: 1 March 1992

Catherine Leloup

This article describes the automation of a documentation centre which provides services to journalists and news editors at Radio‐France (the major French broadcasting…

Abstract

This article describes the automation of a documentation centre which provides services to journalists and news editors at Radio‐France (the major French broadcasting organisation) as well as to other broadcasting and television companies. The system objectives are briefly presented and the comparison of the previous and new systems is used to highlight major issues regarding the technical solution adopted, organisational impact and economic aspects.

Details

Program, vol. 26 no. 3
Type: Research Article
ISSN: 0033-0337

Article
Publication date: 1 March 2002

This guide is compiled in order that banks may see the extent of the overall problem of fraud and money laundering in documentary credit transactions. It also contains…

1402

Abstract

This guide is compiled in order that banks may see the extent of the overall problem of fraud and money laundering in documentary credit transactions. It also contains advice on how banks and bankers may protect themselves and their staff from the consequences of fraudulent attacks against the system.

Details

Journal of Money Laundering Control, vol. 5 no. 3
Type: Research Article
ISSN: 1368-5201

Article
Publication date: 1 September 2005

Adil Alsaid and Chris J. Mitchell

Aims to address some of the problems that arise when signing digital documents that contain dynamic content.

Abstract

Purpose

Aims to address some of the problems that arise when signing digital documents that contain dynamic content.

Design/methodology/approach

Briefly introduces the problem of signing digital documents with dynamic content and discusses possible locations for signature functionality in a computer system. Outlines existing solutions to the problems and introduces a novel solution. Finally, discusses issues and unresolved problems.

Findings

The suggested solution requires all document handling applications to possess application awareness of the digital signature program in order to function properly. Every application must implement a COM interface and register itself in the Registry, in a locale specific to the digital signature program to sign the digital document.

Originality/value

Provides a new solution to the problem of digitally signing a digital document.

Details

Information Management & Computer Security, vol. 13 no. 4
Type: Research Article
ISSN: 0968-5227

Keywords

Article
Publication date: 1 September 1994

Haakon Lund

Today′s increasing use of electronic documents raises the question: willit be necessary to change the core concepts of author and work withinthe tradition of…

310

Abstract

Today′s increasing use of electronic documents raises the question: will it be necessary to change the core concepts of author and work within the tradition of Anglo‐American cataloguing when dealing with electronic documents? Describes the current definition of author and work as given in the traditional Anglo‐American cataloguing and presents two systems working with electronic documents, electronic office systems and groupware.

Details

New Library World, vol. 95 no. 5
Type: Research Article
ISSN: 0307-4803

Keywords

1 – 10 of over 40000