The context dimensions depict the single attributes of the context set C. Since the context attributes consist of both structured and unstructured data of random values, modeling the mapping functions f i (c) can turn out to be difficult.
Furthermore, vegetation would best proxy the delineation of single attribute of urban soils.
Because there is no optimal method for determining the sample size for DCE, we used the method suggested by Johnson to determine that a sample size of 150 participants would yield reasonably precise estimates of utility levels, given the use of 16 choice tasks, two active alternatives, and a maximum number of levels within a single attribute of six [ 23].
We argue that the estimated preferences, implying demand and willingness to pay for single attributes of electricity quality, can help policy makers to adequately incorporate consumers' interests into decision making.
Finally, the third tier consists of a single attribute: the importance of helping postdocs' spouses or partners to find a job.
For example, the SNP-combinations (BB, AA) and (BB, AB) contain the attributes (BB, BB) and (BB, AB) as depicted in Matrix 2. The rank of a single attribute is the maximum of its cluster tree distances that satisfy the equivalence relation.
Some authors propose taking the square root of the ratio Total Best)/Total(Worst), either at the level of a single attribute or at the level of complete decision scenarios [15].
Backward Elimination (BE) This attribute selector starts with the whole set of attributes and eliminates one attribute in each iteration until no single attribute elimination improves the evaluation of the subset.
In this paper, a single attribute, the level of general skill, summarizes all individual characteristics.
