On the basis of the possibility measure, necessity measure, credibility measure and probability measure, chance-constrained programming models are designed to treat optimization problems with stochastic and fuzzy parameters. Then, mathematical properties of different models, for instance, crisp equivalents of uncertain functions and constraints, are discussed on condition that parameters are un...

In the Netherlands, the legal possibilities for post-custodial supervision have been extended considerably in recent years. A currently passed law aims to further increase these possibilities specifically for dangerous (sex) offenders. This law consists of three separate parts that may all result in lifelong supervision. In the first two parts, the supervision is embedded in the conditional rel...

0272-1732/00/$10.00  2000 IEEE Motivated by necessity, change is inevitable. The buggy whip manufacturer realized this on seeing a Ford Model A drive past. Until the late 18th century, circumnavigation of the globe was a near impossibility without an accurate way to measure longitude. It wasn’t until John Harrison dedicated most of his life to developing an accurate timepiece that the problem ...

Subjective uncertainty is one of the most essential subjects for evaluation that was the reason Fuzzy theory was proposed. Related research areas are widely spread such as decision making, data analysis, information retrieval, psychology, and human computer interaction and so on. As a basis for various researches mathematical interpretation of evaluation methods occupies an important position. ...

This paper proposes a model for Information Retrieval (IR) based on possibilistic directed networks. Relations documents-terms and query-terms are modeled through possibility and necessity measures rather than a probability measure. The relevance value for the document given the query is measured by two degrees: the necessity and the possibility. More precisely, the user’s query triggers a prop...

This paper proposes a model for Information Retrieval (IR) based on possibilistic directed networks. Relations documents-terms and query-terms are modeled through possibility and necessity measures rather than a probability measure. The relevance value for the document given the query is measured by two degrees: the necessity and the possibility. More precisely, the user’s query triggers a prop...

In this paper after a general literature review on the concept of Efficient Frontier (EF), an important inadequacy of the Variance based models for deriving EFs and the high necessity for applying another risk measure is exemplified. In this regard for this study the risk measure of Lower Partial Moment of the first order is decided to replace Variance. Because of the particular shape of the pr...