The objective of this article is to prepare a time-inhomogeneous intensity model for valuing cash-flow CDOs, which explicitly incorporates the credit rating of the firms in the collateral portfolio as the indicator of the likelihood of default. Our model can prove very useful for the pricing, structuring, rating and risk management of CDO notes, whenever the legal structure of the transaction, ...

BACKGROUND Reduction of intraoperative bleeding is necessary to achieve the ideal surgical field for the endoscopic sinus surgery (ESS). Intraoperative intra nasal bleeding is influenced by various anesthetics. This study compared surgical field condition between propofol/remifentanil (PR) based anesthesia and desflurane/remifentanil (DR) based anesthesia. METHODS American Society of Anesthes...

PURPOSE There are few valid data that describe the extent of multimorbidity in primary care patients. The purpose of this study was to estimate its prevalence in family practice patients by counting the number of chronic medical conditions and using a measure that considers the severity of these conditions, the Cumulative Illness Rating Scale (CIRS). METHODS The study was carried out in the S...

OBJECTIVE Nowadays music is used to decrease pain and increase relaxation in clinical settings. It is hypothesized that music can affect women more easily than men. We assessed the effect of two types of music (Iranian folkloric and preferred music) on pain tolerance and pain rating in cold pressor test. METHODOLOGY A consecutive sample of 50 healthy Iranian medical students was enrolled. The...

Reputations of electronic parties are important for their economic viability in business settings. Potential clients of e-services cannot rely solely on their own experiences to gain knowledge about e-services’ reputations. Plainly aggregating rating comments from other clients can often be misleading. Therefore, we are presenting a reputation aggregation model which seeks for the subgroup of r...

We studied memory for harmony using a melody-and-accompaniment texture and 10 commercially successful songs of Western popular music. The was presented as timbrally matching block-chord accompaniment to digitally isolated vocals. used three test chord variants: the target harmonically identical original chord, lure schematically plausible but different from original, clash conflicted with both ...

The trend of social information processing sees e-commerce and social web applications increasingly relying on user-generated content, such as rating, to determine the quality of objects and to generate recommendations for users. In a rating system, a set of reviewers assign to a set of objects different types of scores based on specific evaluation criteria. In this paper, we seek to determine,...

The movie distribution company Netflix has generated considerable buzz in the statistics community by offering a million dollar prize for improvements to its movie rating system. Among the statisticians and computer scientists who have disclosed their techniques, the emphasis has been on machine learning approaches. This article has the modest goal of discussing a simple model for movie rating ...