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Group Modeling: Selecting a Sequence of Television Items to Suit a Group of Viewers

机译：组建模：选择电视节目序列以适合一组观众

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Watching television tends to be a social activity. So, adaptive television needs to adapt to groups of users rather than to individual users. In this paper, we discuss different strategies for combining individual user models to adapt to groups, some of which are inspired by Social Choice Theory. In a first experiment, we explore how humans select a sequence of items for a group to watch, based on data about the individuals' preferences. The results show that humans use some of the strategies such as the Average Strategy (a.k.a. Additive Utilitarian), the Average Without Misery Strategy and the Least Misery Strategy, and care about fairness and avoiding individual misery. In a second experiment, we investigate how satisfied people believe they would be with sequences chosen by different strategies, and how their satisfaction corresponds with that predicted by a number of satisfaction functions. The results show that subjects use normalization, deduct misery, and use the ratings in a non-linear way. One of the satisfaction functions produced reasonable, though not completely correct predictions. According to our subjects, the sequences produced by five strategies give satisfaction to all individuals in the group. The results also show that subjects put more emphasis than expected on showing the best rated item to each individual (at a cost of misery for another individual), and that the ratings of the first and last items in the sequence are especially important. In a final experiment, we explore the influence viewing an item can have on the ratings of other items. This is important for deciding the order in which to present items. The results show an effect of both mood and topical relatedness.
机译：看电视往往是一种社交活动。因此，自适应电视需要适应用户群而不是单个用户。在本文中，我们讨论了将个体用户模型组合以适应群体的不同策略，其中一些策略是受“社会选择理论”启发的。在第一个实验中，我们探索人类如何根据有关个人偏好的数据选择一组物品供一个小组观看。结果表明，人类使用某些策略，例如平均策略（又称加性功利主义），平均无苦难策略和最少苦难策略，并关心公平和避免个人痛苦。在第二个实验中，我们调查了人们如何相信自己会对采用不同策略选择的序列感到满意，以及他们的满意度与许多满意度函数所预测的满意度如何相对应。结果表明，受试者使用归一化方法，减少痛苦，并以非线性方式使用评分。满意度函数之一产生了合理的预测，尽管并不完全正确。根据我们的主题，由五种策略产生的序列可使小组中的所有个人满意。结果还表明，受试者对每个人展示评分最高的项目比预期的要多（以另一个人的痛苦为代价），并且序列中第一项和最后一项的评级尤为重要。在最后的实验中，我们探索查看一个项目可能对其他项目的评级产生的影响。这对于确定项目的显示顺序很重要。结果显示了情绪和话题相关性的影响。

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