The Constraint Satisfaction Problem (CSP) framework offers a simple and sound basis for representing and solving simple decision problems, without uncertainty. This paper is devoted to an extension of the CSP frame­ work enabling us to deal with some decisions problems under uncertainty. This extension relies on a differen­ tiation between the agent-controllable decision vari­ ables and the unc...

A constraint satisfaction problem has compactness if any infinite set of constraints is satisfiable whenever all its finite subsets are satisfiable. We prove a sufficient condition for compactness, which holds for a range of problems including those based on the well-known Interval Algebra (IA) and RCC8. Furthermore, we show that compactness leads to a useful necessary and sufficient condition ...

In the domain of qualitative constraint reasoning, a subfield of AI which has evolved in the last 25 years, a large number of calculi for efficient reasoning about space and time has been developed. Reasoning problems in such calculi are usually formulated as constraint satisfaction problems. For temporal and spatial reasoning, these problems often have infinite domains, which need to be abstra...

the current study aims to measure the efficiency of primary health care units completed in health sector of rural azad jammu and kashmir (ajk) and to compare it across developed and deprived regions.operational efficiency and beneficiary efficiency of a total of 32 basic health units (bhus) were measured through data envelopment analysis (dea) by using different input and output variables. inde...

this article analyses the push and pull factors that bring visitors to the iranian national parks. the study used a structured questionnaire to collect data on these factors and the socio-demographic profile of the visitors. survey conducted in boujagh national park, an area of 3177 hectares located in the north of the iran, produced 400 questionnaires. the factor analysis identified four push ...

background: marital satisfaction is affected by many factors. satisfaction with one's sexual life tends to be a pivotal factor in marital satisfaction. in iran, socio-cultural and political limitations are obstacles for sexuality-related studies, therefore, in­sufficient information is available in the area. unique in its own, in this paper we report how sexual relationships relate to mari­tal ...

background: job satisfaction is an emotional and positive feeling which results from job assessment or experiences. it is always considered as a problem in some organizations. despite the important role of nutrition therapy in patients care, dietitians’ job satisfaction is less taken into account. the aim of the present study was to determine the amount of job satisfaction among dietitians in f...

introduction: satisfaction of the students as educational institutions’ customers plays a major role in the performance and activities of the university. the aim of this study was to evaluate the degree of satisfaction of pharmacy students and their educational status in kermanshah university of medical sciences in the year 2014. methods: 48 pharmacy students at 9th to 11th semesters participat...

employees’ satisfaction based on their physical environment is an important factor that can improve employees’ performance, job satisfaction, and organizational productivity in office buildings. occupants’ environmental satisfaction are related to 10 different characteristics, including thermal comfort, air quality, lighting, acoustic quality, office layout, workspace furnishing, cleanliness an...

Building on a result of Larose and Tesson for constraint satisfaction problems (CSPs), we uncover a dichotomy for the quantified constraint satisfaction problem QCSP(B), where B is a finite structure that is a core. Specifically, such problems are either in ALogtime or are L-hard. This involves demonstrating that if CSP(B) is first-order expressible, and B is a core, then QCSP(B) is in ALogtime...