Search results for "soft"
showing 10 items of 9809 documents
Using Induced Ordered Weighted Averaging (IOWA) Operators for Aggregation in Cross-Efficiency Evaluations
2014
This paper proposes an enhancement of the cross-efficiency evaluation through the aggregation of cross-efficiencies by using a particular type of induced ordered weighted averaging IOWA operator. The use of a weighted average of cross-efficiencies for the calculation of the cross-efficiency scores, instead of the usual arithmetic mean, allows us to introduce some flexibility into the analysis. In particular, the main purpose of the approach we present is to provide aggregation weights that reflect the decision maker DM preferences regarding the relative importance that should be attached to the cross-efficiencies provided by the different decision-making units. To do it, an ordering is to b…
Southeast Asia as a Linguistic Area
2006
The languages belonging to the families of Mon-Khmer, Tai, Sinitic, Hmong-Mien, and Chamic (Malayo-Polynesian) spoken in mainland Southeast Asia share a considerable number of properties due to contact-induced convergence. General characteristics of the languages in this area are the lack of obligatory grammatical categories and the central role of pragmatics (indeterminateness), syllabic morphology, and relatively flexible correlations between word class and syntactic positions (versatility). The following properties will be described in some more detail: word order, numeral classifiers, cooccurrence patterns of the verb with coverbs, tense-aspect-modality markers and directional verbs, an…
The Critical Mass of Wireless Communications
2011
The aim of this chapter is to identify and analyze the timing and level of critical mass in the development of market penetration for wireless communications. The authors assume that critical mass is fulfilled at the point when the acceleration of the diffusion process is at its maximum. In practice, this point is determined by estimating the diffusion function and calculating the second derivative with respect to time. The diffusion of mobile subscription is modelled using the Bass diffusion model. The penetration levels and points of time of critical mass of 209 countries or areas of the world are identified and subsequently subjected to regression analysis against population and economic…
Intra-cardiac Signatures of Atrial Arrhythmias Identified by Machine Learning and Traditional Features
2021
Intracardiac devices separate atrial arrhythmias (AA) from sinus rhythm (SR) using electrogram (EGM) features such as rate, that are imperfect. We hypothesized that machine learning could improve this classification.
Proactive Future Internet: Smart Semantic Middleware for Overlay Architecture
2009
Some initiatives towards Future Internet, e.g., GENI, DARPA's Active Networks, argue the need for programmability of the network components. Some other initiatives extend this with argumentation for declarative networking, where the behavior of a network component is specified using some high-level declarative language, with a software-based engine implementing the behavior based on that specification. Our Proactive Future Internet (PROFI) vision follows these initiatives targeting also the following two problems: interoperability of the network elements programmed by different organizations, and the need for flexible cooperation among network elements, including coordination, conflict reso…
A PROGRAM FOR THE AUTOMATIC COMPUTING OF SOLAR GAIN OF A PARALLELEPIPED VOLUME CONSIDERING THE SHADOWS CAST ON IT BY ANY SYSTEM OF SURROUNDING PARALL…
1985
A program is given, that computes solar gain on a parallelepiped volume taking in to consideration the shadows cast by any system of surrounding parallelepiped. It contains an algorithm for the quick discarding of non shadowing volumes, for the construction of the union polygon, without repetition of overlapping shadows, and for the intersection polygon of formerly found union polygon with the shadowed faces.
IS evolution benefit assessment: Challenges with economic investment criteria
2007
Maintenance and system evolution activities have a significant role in the information system (IS) life cycle. It has been estimated that approximately 80% of the total IT expenses are allocated for maintenance activities [20]. According to Lehman’s first law, maintenance is necessary, because software needs to be continuously improved or it will get out of date and cannot respond to the requirements of its environment [19]. Despite the importance of IS evolution investments, there is a gap between the IT related costs and company profitability [27]. Brynjolfssen [10] described this as a productivity paradox: information technology utilization has increased since the 70’s but simultaneously…
Artificial Social Ethics: Simulating Culture, Conflict, and Cooperation
2020
In recent years advances in computational modeling and social simulation technologies have enabled scientists to identify some of the conditions under which – and the mechanisms by which – conflict and cooperation within and across human cultures are likely to emerge. There are significant ethical concerns surrounding the increased capacity and growing use of such computer tools to guide public policy discussions. The purpose of this paper is to propose and promote an "artificial social ethics" approach to addressing these concerns and illustrate its application in relation to three agent-based models implemented within the Artificial Society Analytics Platform. We conclude with a brief dis…
A survey on emotion detection: A lexicon based backtracking approach for detecting emotion from Bengali text
2017
Emotion recognition ability has been introduced as a core component of emotional competence. Every emotion has different ways to be expressed such as text, speech, lyrics etc. This paper reflects the current experimental study and their outcomes on emotion detection from different textual data. In case of lexicon-based analysis, the position of emotional lexicons really varies the state of an emotion. In this empirical study, our focus was to find how people use the emotional keywords to express their emotions. We have presented an emotion detection model to extract emotion from Bengali text at the sentence level. In order to detect emotion from Bengali text, we have considered two basic em…
A comparison study of evolutive algorithms for solving the partitioning problem in distributed virtual environment systems
2004
Fast Internet connections and the widespread use of high performance graphic cards are making Distributed Virtual Environment (DVE) systems very common nowadays. However, there are several key issues in these systems that should still be improved in order to design a scalable and cost-effective system. One of these key issues is the partitioning problem. This problem consists of efficiently assigning clients (3D avatars) to the servers in the system. In this paper, we present a comparison study of different modern heuristics for solving the partitioning problem in DVE systems, as an alternative to the ad hoc heuristic proposed in the literature. Performance evaluation results show that some…