The drawbacks of base correlations are well-known to quantitative credit practitioners. The loss surface produced by any of its common implementations is arbitrageable either in the loss dimension, or the time dimension, or both. Yet the approach has been quite popular in the industry, especially with correlation traders, not least for its ability to fit the standard tranche market by definitio...

energy consumption is considered as a critical issue in wireless sensor networks (wsns). batteries of sensor nodes have limited power supply which in turn limits services and applications that can be supported by them. an efcient solution to improve energy consumption and even trafc in wsns is data aggregation (da) that can reduce the number of transmissions. two main challenges for da are: (i)...

The American Medical Association’s Guides to the Evaluation of Disease and Injury Causation (Causation)1 is an important component of the AMA Guides library. This text delineates a type of evaluation that is distinctly different from a diagnostic evaluation, a treatment planning evaluation, a prognosis evaluation, or an impairment evaluation. It provides a protocol for determining whether a cli...