In this paper we propose a methodology to measure the characteristics and composition of intermediate products using productivity indicators based on directional distance functions. We evaluate how quality attributes interact with the quantity level in grapes production, and find evidence of a trade-off between quantity and aggregate quality for Chardonnay. ∗Dipartimento di Scienze Economiche —...

The pattern is, in short, at the same time a thing, which happens in the world, and the rule which tells us how to create that thing, and when we must create it. It is both a process and a thing; both a description of a thing which is alive, and a description of the process which will generate that thing

When designing a software system it is beneficial to study and use architectural styles from literature, to ensure certain quality attributes. However, as the interpretation of literature may differ depending on the background and area of expertise of the person reading the literature, we suggest that structured discussions about different architecture candidates provides more valuable insight ...

A model is developed that can estimate recreational welfare measures for access to and changes in quality attributes at long distance single-visited tourist sites with only on-site information available. By defining the good (a visit to the site) as indivisible in consumption welfare measures are derived by simply capturing or estimating the chokeprice(s). Stated and revealed methods suitable t...

The problem of aggregating multiple numerical attributes to form overall measure is of considerable importance in many disciplines. The ordered weighted averaging (OWA) aggregation, introduced by Yager, uses the weights assigned to the ordered values rather than to the specific attributes. This allows one to model various aggregation preferences, preserving simultaneously the impartiality (neut...

As is well known, attribute reduction is one of the basic concepts in rough set theory. In this paper, a new algorithm for computing equivalence classes based on segment quick sort is provided and its time complexity is cut down to O(|C||U|) compared with traditional algorithms. Then a method for computing object number of positive region without computing positive region is given. On this basi...

In behavioral experiments the respondents make their choices based on several factors called attributes. When the attributes are related to benefits and costs and respondents choose one attribute at a time, the highest level for benefit attributes and the lowest level for cost attributes will be selected. The relative importance given by the respondents to the attributes is not determined. If a...

North American seasonal migrants, who are usually retired, typically live in recreational vehicle/mobile home park communities in the southern U. S. during the winter months. This study examines the importance of specific park characteristics in the park selection process and uses the case of winter migrants in south Texas to demonstrate how parks may use a modified approach of importanceeperfo...

Robots with vastly different capabilities and specifications are available for a wide range of applications. Selection of a robot from among the large number available in the market to suit a particular application and production environment has become a difficult task. Many methods for robot selection have been developed to date. Keeping in view the research works on industrial robot selection...