Adam Westerski

• Researcher at Institute for Infocomm Research

Procurement is an essential operation of every organization regardless of its size or domain. As such, aggregating the demands could lead to better value-for-money due to: (1) lower bulk prices; (2) larger vendor tendering; (3) lower shipping and handling fees; and (4) reduced legal and administration overheads. This paper describes our experience...

Procurement is an essential operation of every organization regardless of its size or domain. As such, aggregating the demands could lead to better value-for-money due to: (1) lower bulk prices; (2) larger vendor tendering; (3) lower shipping and handling fees; and (4) reduced legal and administration overheads. This paper describes our experience...

This article reports on results of our work to construct a system for detection of fraudulent behaviour in procurement transactions. To solve the problem, we model different types of fraud via separate statistical indicators. We propose a formalised framework to describe the severity of fraud in a unified way regardless of underlying fraud mechanic...

Procurement is a set of activities and processes related to acquisition of goods and services through purchase orders placed by organization employees,from external contractors. Thisarticle describes practical experiments with procurement dataset of a major governmental organization in Singapore. In particular, we highlight the problems that emerge...

A growing challenge in social and collaborative computing is to develop tools for large-scale ideation and deliberation (LSID). Business and civic organizations are seeking new technologies and services to let their communities participate in discussions, while communities increasingly expect such opportunities. Some cases require tools for democra...

The Idea Management Systems are a tool for collecting ideas for innovation from large communities. One of the problems of those systems is the difficulty to accurately depict the distinctive features of ideas in a rapid manner and use them for judgement of proposed innovations. Our research aims to solve this problem by introducing annotation of id...

In this paper we outline the design and implementation of the eDialogos Consensus process and platform to support wide-scale collaborative decision making. We present the design space and choices made and perform a conceptual alignement of the domains this space entails, based on the use of the eDialogos Consensus ontology as a crystallization poin...

The following paper describes the design, architecture and use of a semantic search model in open innovation support systems. We explore the relationships between the user submitted content to improve interaction and simplify the current schemes of analysis of Idea Management System data. In order to accomplish this, we propose a model where users...

Idea Management Systems are an implementation of open innovation notion in the Web environment with the use of crowdsourcing techniques. In this area, one of the popular methods for coping with large amounts of data is duplicate detection. With our research, we answer a question if there is room to introduce more relationship types and in what degr...

This paper introduces a new emerging software component, the idea management system, which helps to gather, organise, select and manage the innovative ideas provided by the communities gathered around organisations or enterprises. We define the notion of the idea life cycle, which provides a framework for characterising tools and techniques that dr...

In parallel to the effort of creating Open Linked Data for the World Wide Web there is a number of projects aimed for developing the same technologies but in the context of their usage in closed environments such as private enterprises. In the paper, we present results of research on interlinking structured data for use in Idea Management Systems -...

In the paper we report on the results of our experiments on the construction of the opinion ontology. Our aim is to show the benefits of publishing in the open, on the Web, the results of the opinion mining process in a structured form. On the road to achieving this, we attempt to answer the research question to what extent opinion information can...

This paper introduces the use of Semantic Web technologies for the Idea Management Systems as a gap closer between heterogeneous software and achieving interoperability. We present a model that proposes how and what kind of rich metadata annotations to apply in the domain of Idea Management Systems. In addition, as a part of our model, we present a...

Web software development is one of the most active areas and fastest growing industries in software and services development in Europe, and, in particular, Java Enterprise Edition is the mainstream European technology option for one million European developers. Since web development is not still a mature area, the proliferation of frameworks and co...

The visual creation tools in the mashup frameworks are supposed to be simple and accessible. Yet at the same time there is a need to extend the capabilities and complexity of mashups. Therefore, in practice, the frameworks become increasingly hard to learn for a casual user. In relation to the emerging mashup creation techniques in Semantic Web are...

The main motivation of this chapter was to gather existing requirements and solutions, and to present a generic architectural design of semantic digital libraries. This design is meant to answer a number of requirements, such as interoperability or ability to exchange resources and solutions, and set up the foundations for the best practices in the...

Only recently, researchers and practitioners alike have begun to fully understand the potential of eLearning and have concentrated on new tools and technologies for creating, capturing and distributing knowledge. In order to support and extend those solutions we propose the idea of incorporating the informal knowledge into Learning Management Syste...

In this paper we present a methodology by which it is possi-ble to enhance existing web applications and directly deliver to the end users aggregated "views" of information. These views are accessed by clicking on buttons which are injected into the HTML of the existing application by lightweight plugins.

In this chapter, we look at the research area of discursion and context-aware information as it relates to the user. Much research has been done in the area of effective learning, active learning, and in developing frameworks through which learning can be said to be achieved and have some possibility of being measured (i.e., Networked Learning and...

In the following paper we present an overview of the state of the art in the area of sentiment analysis. Although this domain is quite new it already has a considerable amount of contributions. Therefore, we present the general trends and within we only focus on some of the most important topics. Additionally, we present some interesting emerging p...

In this chapter, we look at the research area of discursion and context-aware information as it relates to the user. Much research has been done in the area of effective learning, active learning, and in developing frameworks through which learning can be said to be achieved and have some possibility of being measured (i.e., Networked Learning and...

In this chapter, we look at the research area of discursion and context-aware information as it relates to the user. Much research has been done in the area of effective learning, active learning, and in developing frameworks through which learning can be said to be achieved and have some possibility of being measured (i.e., Networked Learning and...

In this chapter, we look at the research area of discursion and context-aware information as it relates to the user. Much research has been done in the area of effective learning, active learning, and in developing frameworks through which learning can be said to be achieved and have some possibility of being measured (i.e., Networked Learning and...

In the following paper we describe the evolution of the Semantic Web area throughout the years, with a special focus on the most recent years. We present how the picture of the Semantic Web has gradually changed from a very idealistic vision to a more realistic scenario. The assumption shall be backed up with both examples from the state of the art...

In the following paper we present the current state of the art in the area of dynamically generated Frequently Asked Questions systems research. Additionally, since this domain is very little explored, we point of some of the still open problems and discuss related work concepts that are possible to apply in such solutions.

In this paper we present a state of the art overview in the contemporary cloud computing research area. By doing so, we focus on the most important technologies that are the backbone behind the modern Internet services and point out some interesting trends. Additionally, we point of various examples of employing cloud computing technologies used in...

Ever since computer networks have become popular libraries tend to join into federations. Each federated digital library, apart from delivering discovery and navigation features within their own database allows users to search among other digital library systems. However the variety of users introduces various types of libraries and eventually type...

In the contemporary Idea Management Systems one of the major challenges is rapid and automatic assessment of idea value. To address this problem, we propose the use of opinion mining technique for extracting sentiments from comments attached to ideas. Based on the opinion mining process, we introduce a new metric that summarises the community sen-t...