The workload loss ratio (WLR) is a key quantity from the point of Quality of Service (QoS) provisioning in packet-based communication, hence it’s estimation is an important issue. The existing results in the area of WLR approximation usually interpret the workload loss as a product of some well assessable quantities. We call this approach as the indirect approximation of the WLR. The drawback o...

Troubleshooting problems Moves, adds and changes to telephone equipment or service New service, voicemail, caller menus, special calling features and plans, caller ID, music on hold, international dialing Fax machines and codes, headsets [2], conference calls [3], speaker phone rental [4] Call accounting and billling Telephone bill login [5] We also manage plans, orders, service, billing and tr...

∗ National University of Singapore. Corresponding author: Ivan Png, Dept of Information Systems, National University of Singapore, 3 Science Drive 2, Singapore 117543, Tel: +65 6516-6807, http://www.comp.nus.edu.sg/~ipng/. We thank participants at ... seminars at the Hong Kong University of Science and Technology, Oxford University, ... for helpful advice. Ivan Png thanks Nuffield College for k...

This paper estimates hedonic price models for a sample of 610 vacation rental houses located in the vicinity of a lake and four-season ski-golf resort. Hedonic semi-logarithmic regression models are estimated for peak summer and peak winter rentals for 2008. The regression estimates for weekly rental prices are conditioned on explanatory variables for house size, house quality, and recreation f...

Dear Editor, The elderly population is predisposed to a myriad of skin conditions such as xerosis and malignancy. The World Health Organisation (WHO) has defi ned elderly as those above age 50.1 In Singapore, 1,266,998 people (18.5% of the population) were above the age of 50 in 2014.2 Of which, 3.2% stay in 1and 2-room fl ats including rental fl ats. The Singapore public rental policy indicate...

As cloud computing becomes widely deployed, more and more cloud services are 8 offered to end users in a pay-as-you-go manner. Today’s increasing number of end user-oriented 9 cloud services are generally operated by SaaS (Software as a Service) providers using rental 10 virtual resources from third-party infrastructure vendors. As far as SaaS providers are concerned, 11 how to process the dyna...

Online content aggregators such as DVD-rental companies offer their customers a wide selection of products, ranging from the most popular to the most obscure. Although there has been a sharp debate about the demand for niche products in the “long tail” of an aggregator’s library, leading to questions around optimal strategies, research has not linked the consumption of popular and obscure offer...

INTRODUCTION This study sought to identify factors associated with health service utilisation by individuals with mental disorders in a Canadian catchment area. METHODS To be included in the study, participants had to be aged between 15 and 65 and reside in the study location. Data was collected randomly from June to December 2009 by specially trained interviewers. A comprehensive set of vari...