From db4f96c90e15cebd0bd8aaa8c854dda15e705280 Mon Sep 17 00:00:00 2001 From: "hannes.kuchelmeister" Date: Wed, 6 May 2020 17:04:13 +0200 Subject: [PATCH] replace unsatisfied with dissatisfied --- 30_Thesis/sections/60_evaluation.tex | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/30_Thesis/sections/60_evaluation.tex b/30_Thesis/sections/60_evaluation.tex index 2025c41..829a687 100644 --- a/30_Thesis/sections/60_evaluation.tex +++ b/30_Thesis/sections/60_evaluation.tex @@ -6,7 +6,7 @@ In this chapter the prototype is evaluated in terms of its functionality and its \section{Metric} \label{sec:Evaluation:Metrics} -A metric is required to carry out the validation. The proposed metric is the metric of satisfaction. This metric was created because pertinent literature does not provide metrics usable for this thesis. Satisfaction is quantified in this thesis by a threshold metric. A user's preference is used to calculate a rating for each possible solution. Each configuration solution gets an individual score determined by the user's preferences. The score is calculated using the average of a user's preference for each characteristic that is part of the configuration. The result allows a configuration to be compared to all other configurations and ranked according to the percentage of configurations that it beats for a specific user. The threshold metric consists of two parameters. First the threshold center $tc$ and second the satisfaction distance $sd$. The threshold for a satisfied person is at $tc + sd$ and for a dissatisfied person is at $tc - sd$. If a recommendation lies in between these two thresholds the person is classified to neither be satisfied nor be unsatisfied with the solution. For this thesis $sd=5\%$ will be used. This choice is based on the assumption that people switch from satisfied to unsatisfied rather quickly \todo{find a source psychology}. Therefore, the parameter considered in this thesis is $tc$. An example is the choice of $tc = 60\%$. This results in a person satisfied with a recommendation if it is better than at least $65\%$ of all possible finished configurations. In contrast, a person is dissatisfied if the recommendation is not better than $55\%$ of all possible finished configurations. A recommendation that is better than at least $55\%$ and not better than $65\%$ of all possible solutions is considered neutral by the individual. +A metric is required to carry out the validation. The proposed metric is the metric of satisfaction. This metric was created because pertinent literature does not provide metrics usable for this thesis. Satisfaction is quantified in this thesis by a threshold metric. A user's preference is used to calculate a rating for each possible solution. Each configuration solution gets an individual score determined by the user's preferences. The score is calculated using the average of a user's preference for each characteristic that is part of the configuration. The result allows a configuration to be compared to all other configurations and ranked according to the percentage of configurations that it beats for a specific user. The threshold metric consists of two parameters. First the threshold center $tc$ and second the satisfaction distance $sd$. The threshold for a satisfied person is at $tc + sd$ and for a dissatisfied person is at $tc - sd$. If a recommendation lies in between these two thresholds the person is classified to neither be satisfied nor be dissatisfied with the solution. For this thesis $sd=5\%$ will be used. This choice is based on the assumption that people switch from satisfied to dissatisfied rather quickly \todo{find a source psychology}. Therefore, the parameter considered in this thesis is $tc$. An example is the choice of $tc = 60\%$. This results in a person satisfied with a recommendation if it is better than at least $65\%$ of all possible finished configurations. In contrast, a person is dissatisfied if the recommendation is not better than $55\%$ of all possible finished configurations. A recommendation that is better than at least $55\%$ and not better than $65\%$ of all possible solutions is considered neutral by the individual. \todo{(optional) visualize tc value with an example configuration} @@ -196,16 +196,16 @@ This section gives an overview on the hypotheses tested during data analysis. Ea \begin{hypothesis} \begin{itshape} - \label{hyp:Evaluation:HigherTcLessSatisfied} A higher $tc$ value results in less satisfied people and more unsatisfied people with regard to the dictator's decision. + \label{hyp:Evaluation:HigherTcLessSatisfied} A higher $tc$ value results in less satisfied people and more dissatisfied people with regard to the dictator's decision. \end{itshape} \medskip \\* - A higher $tc$ value causes a person to be unsatisfied with a higher amount of configurations. It also causes a person to be satisfied with less configurations. Therefore, recommending a random configuration causes the chance of making an individual satisfied to sink while increasing the chance of that person to be unsatisfied. Already the change in probability leads to the assumption that this result should be seen with non-random recommendations too. + A higher $tc$ value causes a person to be dissatisfied with a higher amount of configurations. It also causes a person to be satisfied with less configurations. Therefore, recommending a random configuration causes the chance of making an individual satisfied to sink while increasing the chance of that person to be dissatisfied. Already the change in probability leads to the assumption that this result should be seen with non-random recommendations too. \end{hypothesis} \begin{hypothesis} \begin{itshape} \label{hyp:Evaluation:OnlyOneSatisfied} There exists a $tc$ value which causes only one person to be classified as satisfied with the dictator's decision and no one is classified as satisfied with the group recommender's decision. \end{itshape} \medskip \\* - A $tc$ value that reaches a high enough level eventually should make only the dictator herself satisfied with the dictator's decision. The bound for satisfaction is so high that any group recommendation will cause the dictator to also be unsatisfied or at least neutral with the group decision. This can be understood as a complete unwillingness of a group to compromise. All group members are only satisfied with their own decision. Having two group members with identical interest, which is expected to be rare, results in this effect not being present even in a situation like that. + A $tc$ value that reaches a high enough level eventually should make only the dictator herself satisfied with the dictator's decision. The bound for satisfaction is so high that any group recommendation will cause the dictator to also be dissatisfied or at least neutral with the group decision. This can be understood as a complete unwillingness of a group to compromise. All group members are only satisfied with their own decision. Having two group members with identical interest, which is expected to be rare, results in this effect not being present even in a situation like that. \end{hypothesis} \begin{hypothesis}