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In this paper we introduce the Collapse Index, a new measure of the relevance of individual formal concepts in a concept lattice, the application of which improves the performance of concept pruning and reduces the bias against "outlier" concepts. The measure determines the relevance of a formal concept in the lattice by calculating the minimum number of objects which need to be removed...
Brazil is looking for a new development model, a model that makes the expansion of opportunities to learn, to work and to provide the basis for economic growth. The construction of this model depends on institutional innovations in various sectors of public policy, such as the applicability of complex systems models. It is important for these to have positive results in the strategic planning of organizations...
In this paper, we examine the role of social networking on the adoption of sustainability policies and related strategies that organizations implement. There is a growing consensus among corporate leaders that taking action on climate change is a responsible business decision and in many respects, it is a necessary action because of the increasing requirements for organisations to report on their...
Financial markets are primarily driven by three key drivers, technologies, competition and globalization. These drivers are accompanied with challenging risks. Market authorities monitor activities in order to reduce to the barest minimum the adverse impacts some products and services have on the whole financial system. This indicates the need for a high quality monitoring and surveillance system...
Social network can be seen as a dynamic process of creating and breaking down relationships among network members. The network evolution is of major interest to researchers in this area due to discovering patterns of structural changes in the network. In this study, the evolution of UK directors' social network is examined. The study carried out on a systematic analysis of network properties and evolution...
Globalization has caught up with both developed and emerging financial markets. Significant technological advancements have been made to keep with the expansion of financial markets. Trading mechanisms and platforms have been upgraded with the use of technology, but the inherent risks and its impact on the markets are still not completely understood. This paper emphasizes on the increasing use of...
This paper describes a service architecture for a financial market monitoring and surveillance system in which different components interact in coordination with internal and external service providers to produce proactive alarms for potential fraud cases. The proposed service system is demonstrated through an exemplar case study of text mining and data mining to analyze the impact of 'stock-touting'...
In this paper cross border market surveillance activities are modeled as service systems which exist and interact in a service-oriented economy. Moreover, the market monitoring and surveillance activities are described as a user or customer-driven service value network. The paper expands the previously defined concepts and terminology by presenting a case study for a proposed cross-border detection...
This paper proposes an ontology-based framework and tool to guide the requirements engineering process in RAD projects for financial solution application development. The framework is aimed at empowering IT, business and solutions analysts with a knowledge repository that helps to address terminology gaps between different project stakeholders and quickly manage the requirements engineering process...
Many argue that digital innovation and innovation in services will be driven by Information and Knowledge Management technologies. This paper investigates a case study on sustainability innovation and more specifically, carbon footprint innovation through Environmental Information Management in the context of the University of Manchester Carbon Management Plan. This work has been carried out as an...
In this paper, a systematic framework of market monitoring is introduced. The paper discusses the need for the development of systematic approaches to market monitoring and reviews existing work. Furthermore, the paper articulates the current and potential characteristics of market monitoring systems, their components, information management flows and their interactions. The proposed framework is...
This paper discusses Web page classification using hypertext features such as the text included in the Web page, the title, headings, URL, and anchor text. Five different classification approaches based on SVM that use individual features or combinations are investigated on the LookSmart dataset. The initial experimental results have shown that combining the features improves the performance of the...
Ontologies are commonly used as a semantically rich knowledge base in systems that specialize in management of unstructured information. However, the knowledge that ontologies represent is not static, but evolves over time, thus requiring appropriate ontology management and evolution mechanisms. This paper presents Heraclitus II, a framework for ontology management and evolution in the context of...
The amounts of heterogeneous data that are available on the Web have made information management a seriously complicated task. In the context of the present work, PARMENIDES, a business-oriented framework for information management on the Web is introduced. Semantic information is extracted from Web data and warehoused in a way that enables its efficient retrieval and reasoning towards the support...
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