Miltiadis D. Lytras’s research while affiliated with Athens University of Economics and Business and other places

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Publications (71)


Variables Performance for E-Services Acceptance
  • Chapter

January 2013

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9 Reads

Patricia Ordóñez de Pablos

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Miltiadis D. Lytras

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[...]

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Kamaljeet Sandhu

This case study examines the Web Electronic Service framework for a University in Australia. The department is in the process of developing and implementing a Web-based e-service system. The user experience to use e-services requires insight into the attributes that shape the experience variable. The descriptive data about the attributes that form the experience variable is provided in this study.


Role of Vocabularies for Semantic Interoperability in Enabling the Linked Open Data Publishing

January 2013

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13 Reads

In the spite of explosive growth of the Internet, information relevant to users is often unavailable even when using the latest browsers. At the same time, there is an ever-increasing number of documents that vary widely in content, format, and quality. The documents often change in content and location because they do not belong to any kind of centralized control. On the other hand, there is a huge number of unknown users with extremely diverse needs, skills, education, and cultural and language backgrounds. One of the solutions to these problems might be to use standard terms with meaning; this can be termed as controlled vocabulary (CV). Though there is no specific notion of CV, we can define it as a set of concepts or preferred terms and existing relations among them. These vocabularies play very important roles classifying the information. In this chapter, we focus the role of CV for publishing the web of data on the Web.


Enhancing the Access to Public Procurement Notices by Promoting Product Scheme Classifications to the Linked Open Data Initiative

January 2013

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4 Reads

This chapter introduces the promotion of existing product scheme classifications to the Linked Open Data initiative in the context of the European Union and other official organizations such as United Nations. A common data model and an enclosed conversion method based on Semantic Web vocabularies such as SKOS are also presented to encode data and information following the W3C standards RDF and OWL. This work is applied to the e-procurement sector, more specifically, to enhance the access to the public procurement notices published in the European Union. Finally, an evaluation of the gain, in terms of expressivity, is reported with the objective of demonstrating the advantages of applying Linked Data to retrieve information resources.


Knowledge Management for Web-Based Learning Systems

January 2012

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5 Reads

There is very little knowledge about how different users learn on websites and retain that knowledge for doing tasks. Web-based systems characteristics may be an influencing factor that may positive or negatively impact user’s attitude. In this research, users’ experience with information explains how different users derive the knowledge to use the systems that forms the basis of interaction with the system.


Adverse Events and Medical Errors in Greece

January 2012

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21 Reads

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3 Citations

For years, experts have recognized that medical errors exist and compromise healthcare quality. Much has been written worldwide about medical errors and improvements in their reporting and handling, with the proposals ranging from the implementation of nationwide mandatory reporting with public release of performance data to voluntary reporting and quality-assurance efforts that protect the confidentiality of error-related data. In the present chapter, the author first points out the lack of standardized nomenclature and a universal taxonomy-classification for adverse events and medical errors, which complicates the development of a response to these issues. The chapter also reviews a number of methods of and adverse events’ and medical errors’ knowledge management, each of which has evolved over time and been adapted to different contexts. Finally, the author assesses each of these methods, unveiling their particular strengths and advantages, and also weaknesses and limitations.


Towards an Improved Hotel Reservation System

January 2012

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33 Reads

This chapter presents a tool that distinguishes selects and supplies, among all products with similar characteristics that appear in the catalogue of a company, the product that better adapts to the necessities of the users. In order to achieve this, it uses a search system based on fuzzy logic techniques, being able to handle vague information or of difficult specification and thus making possible to administer to the tool by means of rules of “common sense,” which talk about indefinite amounts. A fundamental aspect that provides great flexibility to the application is that the system can be modified and adjusted by the expert in real time. This allows changing quickly the output product set and without stopping the operation of the system based on the necessities of the company. The results are codified in XML format, facilitating the interoperability between systems and allowing the execution of the tool in multiple operative systems, as they only have to process the generated content. The possibility of displaying the clients the products that they are looking for, directly responding to their necessities, guiding and advising them in the purchase that are ready to make, is a competitive advantage that the company must not let escape.


Alternative Call Center Operational Indicators to Customer Satisfaction

January 2012

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22 Reads

The purpose of this chapter is to purport a set of alternative call center operational performance indicators, in order to enhance the relationship between call center performance and customer satisfaction. In order to do that, a methodological approach based on surveys, as well as stepwise multiple linear regressions, is developed from 6,616 cases collected during three months from the telecommunication industry. The general conclusion is that a set of alternative call center indicators covering three dimensions, namely the call center ability to resolve a problem, the call center responsiveness, and the prior customer satisfaction with the call center, together with traditional indicators, present a statistically significant relationship with customer satisfaction. The insights from this study can help managers to improve the customer satisfaction with call center, as well as to better sub-contract outsourcing call center operators.


Achieving Competitive Advantage through Innovation

January 2012

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17 Reads

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2 Citations

Innovation in the service/retail sector has not been fully examined in the non-Western literature. This preliminary work presents a study that was conducted in Shanghai, China. Three sets of the literature are consulted: Porter’s Generic Strategies Model, Hunt’s Resource Advantage Theory (R-A), and previous studies in the service and retail sectors. Findings developed from six selected successful Chinese supermarket companies have identified three types of innovation adopted by Chinese retailers: Technology based, non-technology based, and resource based innovation. The study takes a qualitative approach by using the methods of documentation survey and in-depth interviews with a panel of ten supermarket experts. Some managerial implications are explicated, and the limitations of the study and directions for future studies are discussed.


Framework of Knowledge and Intelligence Base

January 2012

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6 Reads

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4 Citations

This chapter introduces the concept of the “Intelligence Base,” developed in a study on the information requirement of the management of an (military) organization. The purpose of the study was to conceive, for each level of an organization, an appropriate Decision Support System (DSS) and/or Knowledge and Information System. All systems would eventually have been integrated in an overall Enterprise Architecture (EA). By discussing the OODA-cycle of John Boyd and the Naturalistic Decision Making (NDM) the authors show that the concept of Intelligence Base can be a DSS for very demanding environments. Related topics are knowledge, culture, and real options (business example). The proposed framework is based on Service-Oriented Architecture (SOA) and Cloud Computing, which will determine the configuration of the Information Technology (IT) systems.


A Risk Assessment Framework for Inter-Organizational Knowledge Sharing

January 2012

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13 Reads

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2 Citations

Internet-based information, communication, and collaboration technologies are making it easier for organizations and knowledge workers to collaborate across organizational boundaries. However, it is necessary for organizations to monitor, regulate, and build appropriate security mechanisms in collaboration systems to prevent loss of strategic knowledge and competitive advantage. In this chapter, the authors synthesize literature on knowledge sharing and IS/IT risk assessment to present a risk assessment framework that can help organizations identify valuable knowledge assets exposed through collaboration technologies, and assess the risk of knowledge loss, intellectual property leakage, and the subsequent loss of competitive advantage so that appropriate security mechanism can be designed to prevent such a loss.


Citations (9)


... Fuzzy set theory and fuzzy logic [69] have proved to be suitable formalisms to handle these types of knowledge. Therefore fuzzy ontologies emerge as useful in several applications, such as information retrieval [1,12,53,62], image interpretation [21,22,34], the Semantic Web and the Internet [19,47,51], decision making [13], recommendation [39], summarization [38], ontology merging [17], and many others [23,24,42,46,48,59]. ...

Reference:

Fuzzy ontologies and fuzzy integrals
Uncertainty Representation and Reasoning in the Semantic Web
  • Citing Chapter
  • January 2009

... In this section we restrict ourselves to ontologization to help make a clear comparison. This is even though, as we touch upon later from a bCLEARer perspective, there are interesting features in the methodologies guiding the processes in other software related domains, such as: There is a reasonably rich literature on ontology methodologies, including [11], [12], [13], [14], [15], [16], [17]. We roughly divide these into two broad camps, which we have colloquially labelled: 'Ask-an-Expert' (AaE) and 'Top-Down-Classification' (TDC). ...

A Survey on Ontology Creation Methodologies
  • Citing Chapter
  • Full-text available
  • January 2007

... A high level of self-efficacy also makes students more prone to take on challenging tasks, thus enhancing the development of their professional skills. A high level of work-related self-efficacy may manifest itself through students' performance sureness and fluency, both of which are needed to develop true professionalism (Metso and Kianto, 2012). Based on the previous arguments, we posit: H3. ...

How Are Professional Skills Acquired?

... Martin-Niemi and Greatbanks (2010) and Jung (2009) have studied the application of blogs in the KM domain; Chu and Du (2013) have explored the use of social networking tools (e.g. Facebook, Twitter, etc.); Majchrzak et al. (2006) and Raman (2006) have explored wikis and their use in KM; and Wu et al. (2006) and Rathi et al. (2012) have evaluated and explored the use of folksonomies (i.e. collaborative tagging system in KM areas). ...

Enhancing Information Retrieval Capabilities of Knowledge Management Systems
  • Citing Chapter
  • January 2012

... Correctness is commonly evaluated with classical information retrieval measures such as average precision and macro-averaged precision at standard recall levels for binary relevance, as well as the normalized discounted cumulative gain or Qmeasure for graded relevance. Current evaluation initiatives include the WS-Challenge and the SWS Challenge for (semantic) web service composition, and the S3 Contest for semantic web service selection ( Küster et al., 2009). ...

Evaluating Semantic Web Service Technologies
  • Citing Chapter
  • January 2010

... The researchers and scientist raised and developed techniques to have a formal structure for information available on the web content that machine can process, interpret and connect it, thus called Semantic Web [3]. Semantic web eliminates the correlation structure obstacles in collecting data process from various and diverse sources [4]. ...

Semantic Annotation and Ontology Population
  • Citing Chapter
  • January 2009

... Increase in tourist visits in the province of Bali had an impact on increase in visitors to that Resto Villa and Catering is in Bali. The concerns companies have are either how to fit innovativeness into their business or the lack of skills to encourage and foster innovativeness in order to achieve sustainable competitive advantage (Appiahene et al., 2019;Song, 2012). ...

Achieving Competitive Advantage through Innovation
  • Citing Chapter
  • January 2012

... Other interesting topic is clustering and usage of e.g. K-means clustering on profiles recognized by PSO algorithm usage based on predictive model (Hemalatha, 2012;Hussain & Liatsis, 2009). Clustering could recognize similar profiles and consolidate similar profiles together. ...

A Predictive Modeling of Retail Satisfaction
  • Citing Chapter
  • January 2012

... Adaptation can be effectively and efficiently applied to a wide variety of human activity domains. Potential benefits include improving [29]: usability, user experience, navigation, task completion time,… ─ Designers: several methods exist that support designers in conducting web engineering (e.g., [23,37,43] all provide extensive and interesting comparison and survey of major web engineering methods), but only some of them support adaptation explicitly, with varying levels of granularity, context-awareness [43]. ─ Developers: adaptation can be developed for many different types of web applications ranging from simple HTML pages [8] until Rich Internet Applications (RIAs) [22]; several User Interface Description Languages (UIDLs) [49] could provide developers with developing facilities for producing various interfaces for various contexts of use from a set of models [34]; the complexity of software architectures for supporting adaptation could vary depending on the sophistication of context-awareness [4], thus making it more complex for developers [50,52]. ...

A Survey on Approaches to Adaptation on the Web
  • Citing Chapter
  • January 2009