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This study aims to look beyond the quantitative summary to provide a more comprehensive view of online user-generated content. We obtain a unique and extensive dataset of online user reviews for hotels across various review sites and over a long time periods. We use the sentiment analysis technique to decompose user reviews into five dimensions to measure hotel service quality. Those dimensions are...
Electric power system network planning is influenced by the uncertainty in many parameters, such as future customer-demand/fossil-fuel-price parameter projections and new generation plant locations, which can generally be modeled in an approximate or subjective manner at best. Historically recorded wind power data presented here supports the contention that medium-term wind power generation profiles...
Load control has always been a part of the repertoire of resources used by utilities to manage the balance between electric energy supply and demand. In recent years, advances in communications and control technology have enabled utilities to consider continuously controlling demand response to mitigate intermittent generation. This paper discusses a general method for load resource analysis that...
Freight and passenger carriers deploy large hub-and-spoke transportation networks to provide efficient service between many origins and many destinations. These networks use hub facilities that provide a connecting, sorting and/or consolidation function designed to concentrate flows on the inter-hub links to exploit the strong economies of scale in transportation. Yet examination of the optimal solutions...
An integrated assessment model is being developed and tested to explore possible future trends of Canadian agriculture in response to projected global scenarios in the ecological, economic, and social dimensions. Although many studies suggest more favorable growing conditions for Canada due to rising temperature and CO2 concentration, the agricultural sector will likely face challenges of water scarcity...
Participatory modeling has grown in popularity in recent years with the acknowledgement that stakeholder knowledge is an essential component to informed environmental decision-making. Including stakeholders in model building and analysis allows decision-makers to understand important conceptual components in the environmental systems being managed, builds trust and common understanding between potentially...
This paper presents findings on potential frequency-response-related impacts of increased variable renewable wind generation on North America's western interconnection by 2012. The assessment was conducted using commercially available, production-grade dynamic simulation tools and industry-developed system models, which include the amount of wind generation capacity that planners in the interconnection...
Business models are a widely used concept to analyze existing and design new offerings. Applied in service environments, however, existing business model approaches are reaching their limits. Service specific aspects, like co-creation, are not taken into account. Based on the Business Model Ontology by Osterwalder, this paper discusses the impact of co-creation on business models and suggests requirements...
Serious games are video games or computer games designed for training or educational purposes. Thanks to the interesting and useful opportunities that they provide such as interactivity, immersion, simulation they become well accepted and well spread among professional and academic fields. However, the selection of the most suitable serious games to a specific educational goal seems to be not well...
In this paper, we investigate offer generation methods for automated negotiation on multiple issues with no information about the opponent's utility function. In existing negotiation literature, it is usually assumed that an agent has full information or probabilistic beliefs about the other agent's utility function. However, it is usually not possible for agents to have complete information about...
This paper proposes modifications to the decision criteria that are now technically focused onto value creation and services delivery. It argues that the current emphasis on how, why, when and for whom systems are developed and the Agile Manifesto guidance for improving the human side of IT development using a bottom-up philosophy should be modified to address a wider set of benefits and risks while...
This paper contributes to our understanding of how the performance of IT projects might be improved. It identifies the need for including drivers of failure and underperformance in models of project performance and proposes such a model, focusing on organizational capabilities available to apply to projects. Barriers to learning and capability development are proposed that can offset capability accumulation,...
Despite the overwhelming advantages of using system development methodologies (SDMs), organizations are rarely able to motivate their staff to use them. Even when employees use these methodologies, the question regarding the nature of their use remains, i.e. how are they using them? To better understand the way employees use SDMs, we conceptualize usage into three distinct constructs: committed, compliant,...
Service systems consider the co-creation of values in a process between provider and con¬sumer with a win-win situation for both. Service-Dominant Logic demands a new view on eco¬nomic activities where competences of provider and consumer are the most important re¬source for value creation. Given these assumptions, we investigate whether costs in a service system shall be accounted in a different...
Compared to traditional channels, Internet transactions are intrinsically untrustworthy in nature. We investigate the impact of social identity and reciprocity on trusting and cooperative behavior in dynamic gift giving networks by means of an online laboratory experiment, with a main focus on value transfers among the users individually and directed towards the group. In this study, we display profile...
The final report of the World Commission on the Environment and Development, also known as the Brundtland Report, defines sustainable development as "development that meets the needs of the present with-out compromising the ability of future generations to meet their own needs". Subsequent international efforts such as the Rio de Janeiro Conference in 1992, the publication of Agenda 21,...
ICT-enabled business solutions have created a possibility for automated business relations and transactions. Digital business ecosystems are becoming an increasingly popular concept for modeling and building distributed systems in heterogeneous, decentralized and open environments. However, traditional economic and computing theories do not focus on digital business ecosystems as a separate form of...
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