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Article
Publication date: 5 June 2009

Shu‐Chuan Liao, Kuo‐Fong Kao, I‐En Liao, Hui‐Lin Chen and Shu‐O Huang

As library collections increase rapidly, personalized recommender systems have become a very important service for library patrons. The purpose of this paper is to design and…

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Abstract

Purpose

As library collections increase rapidly, personalized recommender systems have become a very important service for library patrons. The purpose of this paper is to design and implement a personal ontology recommender (PORE) system by building personal ontologies based on patrons' borrowing records.

Design/methodology/approach

In the PORE system, the traditional cataloging scheme, classification for Chinese libraries, is used as the reference ontology. This reference ontology is transformed to a unique personal ontology for each user based on the mining results from library borrowing records of that user.

Findings

A personal ontology represents a unique user interest on specific subjects. The personal ontology can be used to filter out unsuitable recommendations based only on a keyword matching method. Besides, the recommended books can be organized into the personal ontology, and provide the patron with a user‐friendly interface to access library collections.

Research limitations/implications

The PORE system is currently implemented for Chinese collections. From this paper builds a new version to support English collections by adopting the Library of Congress Classification as the reference ontology.

Originality/value

This paper represents a practical method of building a user's personal ontology and explains the functional use of ontology knowledge.

Details

The Electronic Library, vol. 27 no. 3
Type: Research Article
ISSN: 0264-0473

Keywords

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Article
Publication date: 8 June 2010

I‐En Liao, Wen‐Chiao Hsu, Ming‐Shen Cheng and Li‐Ping Chen

The purpose of this paper is not only to design a more effective recommendation system for libraries, but also to eliminate many of the weaknesses found in the existing library…

1643

Abstract

Purpose

The purpose of this paper is not only to design a more effective recommendation system for libraries, but also to eliminate many of the weaknesses found in the existing library recommender systems.

Design/methodology/approach

A novel library recommender system was designed for English collections by integrating personal ontology model and collaborative filtering model with domain specification.

Findings

The trend of the traditional library is evolving toward that of digital library. The personal ontology recommender (PORE) system offers a friendly user interface and provides several personalized services.

Research limitations/implications

This system is only implemented and tested in the Library of National Chung Hsing University in Taiwan.

Originality/value

The paper demonstrates a good methodology to offer an active, effective, and personalized recommendation system for library patrons.

Details

The Electronic Library, vol. 28 no. 3
Type: Research Article
ISSN: 0264-0473

Keywords

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Book part
Publication date: 10 July 2019

Katarina Norberg

In 2015, there was great refugee migration towards and within Europe. Sweden was no exception. The unprecedented increase in asylum-seekers challenged the reception system at all…

Abstract

In 2015, there was great refugee migration towards and within Europe. Sweden was no exception. The unprecedented increase in asylum-seekers challenged the reception system at all levels including schools. This chapter, based on two studies, focuses on principals and their mission to adjust their schools in order to fulfil their responsibilities concerning newly arrived students’ education during that period. The number of newly arrived students the principals received ranged from a few students over a period of months to a constant influx of 60 and 150 in total. But the reaction among the principals and staff wasn’t necessarily related to the number of students in question. More telling was the school’s history, the principal’s leadership and the school’s experience in matters of diversity important. The way the principals managed the situation had an impact on how the situation developed. The findings also revealed problematic attitudes toward the ‘other’ among educators, attitudes that conflict with the school’s democratic mission. The reception of newly arrived students is a matter of a joint responsibility at all levels to guarantee equal education for all students, irrespective of their background.

Details

Education, Immigration and Migration
Type: Book
ISBN: 978-1-78756-044-4

Keywords

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Article
Publication date: 20 April 2023

Vamsi Desam and Pradeep Reddy CH

Several chaotic system-based encryption techniques have been presented in recent years to protect digital images using cryptography. The challenges of key distribution and…

34

Abstract

Purpose

Several chaotic system-based encryption techniques have been presented in recent years to protect digital images using cryptography. The challenges of key distribution and administration make symmetric encryption difficult. The purpose of this paper is to address these concerns, the novel hybrid partial differential elliptical Rubik’s cube algorithm is developed in this study as an asymmetric image encryption approach. This novel algorithm generates a random weighted matrix, and uses the masking method on image pixels with Rubik’s cube principle. Security analysis has been conducted, it enhances and increases the reliability of the proposed algorithm against a variety of attacks including statistical and differential attacks.

Design/methodology/approach

In this light, a differential elliptical model is designed with two phases for image encryption and decryption. A modified image is achieved by rotating and mixing intensities of rows and columns with a masking matrix derived from the key generation technique using a unique approach based on the elliptic curve and Rubik’s cube principle.

Findings

To evaluate the security level, the proposed algorithm is tested with statistical and differential attacks on a different set of test images with peak signal-to-noise ratio, unified average changed intensity and number of pixel change rate performance metrics. These results proved that the proposed image encryption method is completely reliable and enhances image security during transmission.

Originality/value

The elliptic curve–based encryption is hard to break by hackers and adding a Rubik’s cube principle makes it even more complex and nearly impossible to decode. The proposed method provides reduced key size.

Details

Journal of Engineering, Design and Technology, vol. 22 no. 6
Type: Research Article
ISSN: 1726-0531

Keywords

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Article
Publication date: 13 September 2024

Qiuhan Wang and Xujin Pu

This research proposes a novel risk assessment model to elucidate the risk propagation process of industrial safety accidents triggered by natural disasters (Natech), identifies…

35

Abstract

Purpose

This research proposes a novel risk assessment model to elucidate the risk propagation process of industrial safety accidents triggered by natural disasters (Natech), identifies key factors influencing urban carrying capacity and mitigates uncertainties and subjectivity due to data scarcity in Natech risk assessment.

Design/methodology/approach

Utilizing disaster chain theory and Bayesian network (BN), we describe the cascading effects of Natechs, identifying critical nodes of urban system failure. Then we propose an urban carrying capacity assessment method using the coefficient of variation and cloud BN, constructing an indicator system for infrastructure, population and environmental carrying capacity. The model determines interval values of assessment indicators and weights missing data nodes using the coefficient of variation and the cloud model. A case study using data from the Pearl River Delta region validates the model.

Findings

(1) Urban development in the Pearl River Delta relies heavily on population carrying capacity. (2) The region’s social development model struggles to cope with rapid industrial growth. (3) There is a significant disparity in carrying capacity among cities, with some trends contrary to urban development. (4) The Cloud BN outperforms the classical Takagi-Sugeno (T-S) gate fuzzy method in describing real-world fuzzy and random situations.

Originality/value

The present research proposes a novel framework for evaluating the urban carrying capacity of industrial areas in the face of Natechs. By developing a BN risk assessment model that integrates cloud models, the research addresses the issue of scarce objective data and reduces the subjectivity inherent in previous studies that heavily relied on expert opinions. The results demonstrate that the proposed method outperforms the classical fuzzy BNs.

Details

Kybernetes, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0368-492X

Keywords

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Article
Publication date: 20 March 2017

Peng Nai, Yuqing Luo and Guang Yang

This study aims to propose a set of institutional frameworks, as well as practical polices and steps, with a view to facilitating the establishment of a unified carbon trading…

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Abstract

Purpose

This study aims to propose a set of institutional frameworks, as well as practical polices and steps, with a view to facilitating the establishment of a unified carbon trading market in China.

Design/methodology/approach

Based on existing empirical studies and reviews of the socioeconomic contexts, this study followed a qualitative approach consisting of secondary data collection and analysis, semi-structured interviews to collect primary data and comparative analysis.

Findings

The establishment of a national carbon trading market in China is a systemic and complex process which requires coordination among various concerned government agencies and supporting mechanisms. Currently, the development of a unified national carbon market has been impeded by the lack of coordination among local pilot programs, and there is no specific law passed by the People’s Congress or by its Standing Committee to regulate the emerging carbon trading market. It is of vital importance for China, in terms of both practical and strategic aspects, to take a gradualist approach in establishing laws and institutions to guide and support the development of its emerging carbon market.

Research limitations/implications

This present study forms a part of a regional research project aiming to identify sound policy approaches for the establishment of a carbon trading market in China. Due to scope reasons, it focuses only on policy analysis and recommendations.

Originality/value

China’s emerging national carbon trading market has attracted much research attention. However, little has been done from the perspectives of legislations and policies.

Details

International Journal of Climate Change Strategies and Management, vol. 9 no. 2
Type: Research Article
ISSN: 1756-8692

Keywords

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Article
Publication date: 25 May 2022

Dirk De Clercq, Eugene Kaciak and Narongsak Thongpapanl

This study aims to investigate the mediating effect of entrepreneurial orientation on the relationship between women entrepreneurs' experience of family-induced work happiness and…

632

Abstract

Purpose

This study aims to investigate the mediating effect of entrepreneurial orientation on the relationship between women entrepreneurs' experience of family-induced work happiness and the competitive performance of their companies, as well as the invigorating role of their perceptions of environmental hostility in this process.

Design/methodology/approach

Survey data were collected among a nationwide sample of women entrepreneurs in Denmark.

Findings

The spillover of positive emotions from family to work can spur competitive performance if women entrepreneurs adopt an entrepreneurial strategic posture. This intermediate role of entrepreneurial orientation is particularly prominent among women entrepreneurs who experience their market environments as highly threatening to their success.

Practical implications

For practitioners, this study identifies a key mechanism, an entrepreneurial strategic direction, by which positive work energy stemming from family involvement can enhance women entrepreneurs' business success. The study also shows how this mechanism is triggered by resource-draining competitive markets that appear hostile instead of benign.

Originality/value

The adoption of an entrepreneurial posture is an unexplored but critical factor through which women entrepreneurs' sense of happiness at work, caused by their family involvement, can be leveraged into enhanced success at the organizational level. This study also explicates how this beneficial role is invigorated by beliefs about environmental hostility, as a critical external source of resource depletion.

Details

International Journal of Entrepreneurial Behavior & Research, vol. 28 no. 6
Type: Research Article
ISSN: 1355-2554

Keywords

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