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In an effort to evaluate the effectiveness of an audience response system (ARS), a mixed methods approach was developed using qualitative and quantitative questionnaire data together with direct measures such as exam and ARS performance scores. The results reveal that students' exam scores are higher for those students who answer ARS questions and that ARS performance scores are an indicator of how...
In the last decade, crowdsourcing (CS) has emergedas a very promising approach for obtaining services, feedbackor data from a large number of people connected through theInternet, in a short time and at a reasonable cost. CS has beenused in a large range of contexts, thus proving its versatility. However, the quality of the services or data provided by theworkers (the "crowd") is not guaranteed,...
As systems become more complex and have longer lifespans, they will likely encounter contextual variation or be themselves subject to change. Systems need to not only be feasible but viable as well. That is, they need to be able to continue to provide value in spite of any potential exogenous or endogenous changes. Viability has been defined for other domains, but it has not been defined for engineered...
Reliability and Maintainability engineering is a well known field. Along the years several methods and techniques have been developed to deal with this type of problem. The great majority of the work developed hasn't been able to integrate context information correctly in their proposed solutions. Furthermore systems requiring reliability and maintainability have greatly evolved becoming more and...
It is becoming clear that one key characteristic of 5G communication systems will be heterogeneity. Heterogeneity is important to be able to reuse equipment that is available, extract maximum capacity from what is allowed to be used in given spectrum bands and locations due to regulatory limitations, and to match capabilities to the extremely wide range of use cases of 5G. Importantly, this heterogeneity...
E-Commerce is nothing new to our world. Today, progressively more consumers purchase foreign goods through online B2C website. Despite the sharp growth of oversea online shopping, there appears to be a lack of comprehensive research for its mechanism. The purpose of this study is to understand the efficacy of product reviews. We conducted a survey of 292 consumers in China who had at least one overseas...
The concept of O2O caught great interests from operators and researchers. Although O2O brings great opportunity to the market, the chaos and lack of credit make big problems to the thrive of O2O. The context and preference clustering model is proposed in this paper to study the affection of both customer context and service preference. The proposed model aims to realize a clustering method for both...
Using internet of things (IoT) to connect things, service, and people for intelligent operations has been discussed and deployed in many industry domains such as smart city, smart energy, healthcare, food and water tracking, logistics and retail, and transportation. However, scarce information is available for IoT usage in industrial automation domain for reliable and collaborative automation with...
Unlike physical services, e-services lack human interaction, which calls for them to be designed in a more human-like way. From the conventional marketing perspective, the concept of brand personality is used to explain the human characteristics associated with a brand. Regrettably, existing brand personality dimensions are context-specific and are often developed using physical products and services...
This study explores how to create a reciprocal relationship between online and offline channel by improving channel integration. Data for this study were collected from 552 Chinese customers who completed a questionnaire. Participants were asked to have purchased products or services with the use of at least two channels operated by a same retailer. The partial least square (PLS) structural equation...
The expected proliferation of massive number of connected devices in the Internet of Things (IoT) context imposes several challenges and constraints to inter & intra IoT communication. Current mechanism has limited capability for handling a number of aspects associated with this exponential rise in connected devices, types and functions of IoT networks, and availability of heterogeneous modes...
This article discusses the influence of customer relationship proneness in hairdresser's context. Data are collected using online survey. A conceptual model about customer relationship proneness, relational benefits, customer commitment and customer loyalty is proposed to explain the influence. Structural equation modelling is used to analyze the data. Empirical results show that customer relationship...
With the increase in number of mobile devices deployed in cloud computing, the demand of context-aware services to assign increases. Indeed, Information about the user's environment exposes new challenges to cloud computing in terms of location-aware, time-aware, device-aware and personalized applications to cope with the constraints of mobile devices in matters of interaction abilities and communication...
In this paper, we consider the effect of different order relations on the solutions of Multi-Objective Constraint Optimization Problems (MOCOP) with tradeoffs, where the tradeoffs are given in the form of elicited or observed preferences over alternatives. In MOCOP, alternatives are evaluated on a number of objectives (utility scales) and thus correspond to utility vectors, the set of optimal solutions...
Machine Reassignment is a challenging problem for constraint programming (CP) and mixed integer linear programming (MILP) approaches, especially given the size of data centres. The multi-objective version of the Machine Reassignment Problem is even more challenging and it seems unlikely for CP or MILP to obtain good results in this context. As a result, the first approaches to address this problem...
The Islamic websites play an important role in disseminating Islamic knowledge and information about Islamic ruling. Their number and the content they provide is continuously increasing which require in-depth investigations in content evaluation automation. In this paper, we are proposing the use of conceptual reasoning for detecting inconsistencies in case of Fatwas evaluation. Inconsistencies are...
The advancement of mobile cloud computing (MCC) has the potential to improve communication and information during disaster emergency operation. Many studies from different countries have addressed different approaches to implement mobile cloud technologies during disaster operation. However, there has been a lack of any consolidated evidence-based study to evaluate the MCC from the dual perspectives...
Pedestrian-to-vehicle communication is an effective method to reducing pedestrian accidents, but its performance is greatly degraded when many pedestrians contend to transmit frequently on the same channel. In this paper, we propose to solve this problem from three aspects, (i) defining accident models for intersections and straight roads where pedestrian accidents frequently occur, (ii) estimating...
Trust is becoming an increasingly important issue in large-scale distributed systems. Especially self-managed systems from the Autonomic and Organic Computing domains consisting of several cooperating entities have to rely on an automated estimation how reliable and trustworthy potential cooperation partners are. In this paper, we introduce a novel concept to represent trust among those entities....
In acoustic study of English diphthongs, one feature governs the diphthong formant movement is the diphthongization feature—formant rate of change. Acoustic analysis indicates that there are substantial differences on first and second formant rate of change between college EFL learners and RP speakers. Generally speaking, for fronting and backing diphthongs, change of vowel location in the production...
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