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The measure precision at k, for example, is a measure of precision looking only at the top ten (k=10) search results. More sophisticated metrics, such as discounted cumulative gain , take into account each individual ranking, and are more commonly used where this is important.
For example, if a pharmaceutical company wishes to explore the effect of a medication on the common cold but the data sample only includes men, any conclusions made from that data will be biased towards how the medication affects men rather than people in general. That means the information would be incomplete and not useful for deciding if the ...
A measure of the character's mental resistance (against pain, fear etc.) when falling victim to mind-altering magic, torture, or insanity. Many games combine willpower and wisdom. Perception aka Alertness, Awareness, Cautiousness, ... A measure of a character's openness to their surroundings.
In a classification task, the precision for a class is the number of true positives (i.e. the number of items correctly labelled as belonging to the positive class) divided by the total number of elements labelled as belonging to the positive class (i.e. the sum of true positives and false positives, which are items incorrectly labelled as belonging to the class).
Subjective measures directly assess SA by asking individuals to rate their own or the observed SA of individuals on an anchored scale (e.g., participant situation awareness questionnaire; [76] the situation awareness rating technique [77]). Subjective measures of SA are attractive in that they are relatively straightforward and easy to administer.
Post-experimental questionnaires: For example, Rubin (2016) discusses the Perceived Awareness of the Research Hypothesis (PARH). [6] [7] This 4-item scale is usually presented at the end of a research session. In responding to the scale, participants indicate the extent to which they believe that they are aware of the researchers' hypotheses ...
a measure of the shape of the distribution like skewness or kurtosis; if more than one variable is measured, a measure of statistical dependence such as a correlation coefficient; A common collection of order statistics used as summary statistics are the five-number summary, sometimes extended to a seven-number summary, and the associated box plot.
In complicated applications of statistics, there may be several ways in which the number of data items may grow. For example, records for rainfall within an area might increase in three ways: records for additional time periods; records for additional sites with a fixed area; records for extra sites obtained by extending the size of the area.