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Studies aspects of Heinz von Foerster's work that are of particular importance for cognitive science and artificial intelligence.
Abstract
Purpose
Studies aspects of Heinz von Foerster's work that are of particular importance for cognitive science and artificial intelligence.
Design/methodology/approach
Kohonen's self‐organizing map is presented as one method that may be useful in implementing some of Von Foerster's ideas. The main foci are the distinction between trivial and non‐trivial machines and the concept of constructive learning. The self‐organizing map is also presented as a potential tool for alleviating the participatory crisis discussed by von Foerster.
Findings
The participatory crisis in society is discussed and the concept of change is handled within the framework of information systems development.
Originality/value
Considers the importance of considering change in information systems development.
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Keywords
Damien Ennis, Ann Medaille, Theodore Lambert, Richard Kelley and Frederick C. Harris
This paper aims to analyze the relationship among measures of resource and service usage and other features of academic libraries in the USA and Canada.
Abstract
Purpose
This paper aims to analyze the relationship among measures of resource and service usage and other features of academic libraries in the USA and Canada.
Design/methodology/approach
Through the use of a self‐organizing map, academic library data were clustered and visualized. Analysis of the library data was conducted through the computation of a “library performance metric” that was applied to the resulting map.
Findings
Two areas of high‐performing academic libraries emerged on the map. One area included libraries with large numbers of resources, while another area included libraries that had low resources but gave greater numbers of presentations to groups, offered greater numbers of public service hours, and had greater numbers of staffed service points.
Research limitations/implications
The metrics chosen as a measure of library performance offer only a partial picture of how libraries are being used. Future research might involve the use of a self‐organizing map to cluster library data within certain parameters and the identification of high‐performing libraries within these clusters.
Practical implications
This study suggests that libraries can improve their performance not only by acquiring greater resources but also by putting greater emphasis on the services that they provide to their users.
Originality/value
This paper demonstrates how a self‐organizing map can be used in the analysis of large data sets to facilitate library comparisons.
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Yi‐ling Lin, Peter Brusilovsky and Daqing He
The goal of the research is to explore whether the use of higher‐level semantic features can help us to build better self‐organising map (SOM) representation as measured from a…
Abstract
Purpose
The goal of the research is to explore whether the use of higher‐level semantic features can help us to build better self‐organising map (SOM) representation as measured from a human‐centred perspective. The authors also explore an automatic evaluation method that utilises human expert knowledge encapsulated in the structure of traditional textbooks to determine map representation quality.
Design/methodology/approach
Two types of document representations involving semantic features have been explored – i.e. using only one individual semantic feature, and mixing a semantic feature with keywords. Experiments were conducted to investigate the impact of semantic representation quality on the map. The experiments were performed on data collections from a single book corpus and a multiple book corpus.
Findings
Combining keywords with certain semantic features achieves significant improvement of representation quality over the keywords‐only approach in a relatively homogeneous single book corpus. Changing the ratios in combining different features also affects the performance. While semantic mixtures can work well in a single book corpus, they lose their advantages over keywords in the multiple book corpus. This raises a concern about whether the semantic representations in the multiple book corpus are homogeneous and coherent enough for applying semantic features. The terminology issue among textbooks affects the ability of the SOM to generate a high quality map for heterogeneous collections.
Originality/value
The authors explored the use of higher‐level document representation features for the development of better quality SOM. In addition the authors have piloted a specific method for evaluating the SOM quality based on the organisation of information content in the map.
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Keywords
Image analysis faces data reduction problems when deriving low‐dimensional image spaces (‘perceptual maps’) from multidimensional profile data. The neurocomputing methodology of…
Abstract
Image analysis faces data reduction problems when deriving low‐dimensional image spaces (‘perceptual maps’) from multidimensional profile data. The neurocomputing methodology of Self‐Organizing Maps may contribute to finding a radically parsimonious representation. The principles of SOM methodology are shown in a case study on the company images of nine Austrian tour operators.
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Aapo Länsiluoto, Tomas Eklund, Barbro Back, Hannu Vanharanta and Ari Visa
Multilevel environment analysis is important for companies operating on the global market. Previous studies have in general focused on one level at a time, but the need to perform…
Abstract
Multilevel environment analysis is important for companies operating on the global market. Previous studies have in general focused on one level at a time, but the need to perform multilevel environment analysis has also been stressed. Multilevel analysis can partly explain the benchmarking gap between companies, as changing conditions in the upper environment levels affect lower levels. In today's information‐rich era, it is difficult to conduct multilevel analysis without suitable computational tools. This paper illustrates how the self‐organizing map can be used for the simultaneous comparison of industry‐level changes and financial performance of pulp and paper companies. The study shows the importance of simultaneous analysis, as some simultaneous changes were found at both industry and corporate levels. Also found were some industry‐specific explanatory factors for good (Scandinavian companies) and poor (Japanese companies) financial performance. The results indicate that the self‐organizing map could be a suitable tool when the purpose is to visualize large masses of multilevel data from high‐dimensional databases.
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The Tourism Knowledge Map is part of a larger project that develops a web portal entitled The Tourism Knowledge Base. On this web site the users will be offered comprehensive…
Abstract
The Tourism Knowledge Map is part of a larger project that develops a web portal entitled The Tourism Knowledge Base. On this web site the users will be offered comprehensive information about the organizations in Austria providing tourism education, research, and consulting services. The Knowledge Map assists the users in finding and optimizing a set of keywords for launching an efficient search operation in tourism‐centred databases accessible on the internet. The underlying method is the Self‐Organizing Map, one of the most widely accepted techniques of unsupervised learning. Three real‐world examples illustrate how a Knowledge Map may be constructed from the frequencies of keywords and their co‐occurrence in the abstracts of tourism‐related research papers, articles, and reports.
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Chunxiu Qin, Pengwei Zhao, Jian Mou and Jin Zhang
Browsing knowledge documents in a peer-to-peer (P2P) environment is difficult because knowledge documents in such an environment are large in quantity and distributed over…
Abstract
Purpose
Browsing knowledge documents in a peer-to-peer (P2P) environment is difficult because knowledge documents in such an environment are large in quantity and distributed over different peers who organize the documents according to their own views. This paper aims to propose a method for constructing a personal knowledge map for a peer to facilitate knowledge browsing and alleviate information overload in P2P environments.
Design/methodology/approach
The research presents a method for constructing a personal knowledge map. The method adopts an ontology-concept-tree-based classification algorithm to recognize a peer’s personal knowledge structure and construct a personal knowledge map, and uses a self-organizing map algorithm to cluster and visualize the knowledge documents. The correctness of the created knowledge map is evaluated with a collection of abstracts of academic papers.
Findings
The method for constructing a personal knowledge map is the main finding of this research. The evaluation shows that the created knowledge map is good in quality.
Research limitations/implications
The proposed method provides a way for P2P platforms to understand their users’ knowledge background, as well as to improve the P2P platform environment. However, the proposed method will not help a peer when he has nothing in his individual knowledge document repository (i.e. the “cold start” problem). The method also requires a relatively good ontology base for a P2P document sharing system to use the method effectively.
Originality/value
It is novel that the proposed method organizes the knowledge documents related to a peer’s knowledge background into a personal knowledge map. Moreover, the created knowledge map combines the advantages of a hierarchical display and a map display. It has values for a distributed P2P environment to facilitate users’ knowledge browsing and to alleviate information overload.
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Chun‐Nan Lin, Chih‐Fong Tsai and Jinsheng Roan
Because of the popularity of digital cameras, the number of personal photographs is increasing rapidly. In general, people manage their photos by date, subject, participants, etc…
Abstract
Purpose
Because of the popularity of digital cameras, the number of personal photographs is increasing rapidly. In general, people manage their photos by date, subject, participants, etc. for future browsing and searching. However, it is difficult and/or takes time to retrieve desired photos from a large number of photographs based on the general personal photo management strategy. In this paper the authors aim to propose a systematic solution to effectively organising and browsing personal photos.
Design/methodology/approach
In their system the authors apply the concept of content‐based image retrieval (CBIR) to automatically extract visual image features of personal photos. Then three well‐known clustering techniques – k‐means, self‐organising maps and fuzzy c‐means – are used to group personal photos. Finally, the clustering results are evaluated by human subjects in terms of retrieval effectiveness and efficiency.
Findings
Experimental results based on the dataset of 1,000 personal photos show that the k‐means clustering method outperforms self‐organising maps and fuzzy c‐means. That is, 12 subjects out of 30 preferred the clustering results of k‐means. In particular, most subjects agreed that larger numbers of clusters (e.g. 15 to 20) enabled more effective browsing of personal photos. For the efficiency evaluation, the clustering results using k‐means allowed subjects to search for relevant images in the least amount of time.
Originality/value
CBIR is applied in many areas, but very few related works focus on personal photo browsing and retrieval. This paper examines the applicability of using CBIR and clustering techniques for browsing personal photos. In addition, the evaluation based on the effectiveness and efficiency strategies ensures the reliability of our findings.
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Mahamaya Mohanty, Rashmi Singh and Ravi Shankar
The purpose of this paper is to investigate ways to improve operational efficiency of outbound retail logistics considering retailers and consumers by using clustering approach…
Abstract
Purpose
The purpose of this paper is to investigate ways to improve operational efficiency of outbound retail logistics considering retailers and consumers by using clustering approach. The retailers are allocated to serve a cluster of consumers. This study demonstrates economic and environment benefits that are achieved in terms of reduced delivery time, transportation cost and carbon emissions.
Design/methodology/approach
This study is based on modeling the outbound logistics of a retail chain by using Kohonen self-organizing map (KSOM). KSOM is an unsupervised learning and data analysis method for vector quantization, which is based on Euclidean distance method to form clusters.
Findings
Appropriate clustering of retailers and consumers provides efficient locations of retailers that are identified using the KSOM training algorithm. It provides optimum distance with lesser delivery time, transportation cost and carbon emissions.
Research limitations/implications
The implication of research includes modeling of operational procedures in a retail supply chain, which is a crucial task for a business. These operations positively affect the reduction in inventory and distribution costs, improvement in customer service and responsiveness to the ever-changing markets of consumer durables. Overall results are insightful and practical in the sense that implementation would result in consumer convenience, eco-friendly environment, etc.
Originality/value
There is not enough research available on outbound retail logistics considering retailers and consumers using clustering approach.
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P Corcoran and P Lowery
Reviews the suitability of different neural network architectures foruse with typical multisensor systems required by their increasing use incomplex engineering applications…
Abstract
Reviews the suitability of different neural network architectures for use with typical multisensor systems required by their increasing use in complex engineering applications. Outlines the learning mechanisms that are required [to generate the transformation between the data at the input and the corresponding output] involving back‐propagation networks and self‐organising map networks. Looks at the three main problem areas of classification, quantification and descriptions and uses the case study of an electronic nose as a system which encounters each of these problems. Concludes that the combination of artificial neural networking tools with mutisensors is becoming more widely accepted and defines the need for the investigation of alternative supervised and unsupervised architecture if the true potential of multisensor systems is to be realized.
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