This paper proposes a novel cooperative particle swarm PSO (particle swarm optimization)algorithm, which makes the use of the property of the fuzzy migratory operator to achieve the optimization performance. To avoid the drawback of the possibility of being trapped in local optimum, the proposed...

In order to dynamize the static Gaussian copula model of portfolio credit risk, we introduce a model filtration made of a reference Brownian filtration progressively enlarged by the default times. This yields a multidimensional density model of default times, where, as opposed to the classical...

1. Understanding time and its relationship to individual time management -- 2. What are temporal structures? -- 3. Time management and temporal personalities -- 4. Calendar tools : current practices, new prototypes and proposed designs -- 5. Investigating temporal structure usage in individual...