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首页> 外文期刊>International journal of information and decision sciences >Comparing the effectiveness of intentional preferences versus preferences over specific choices: a user study
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Comparing the effectiveness of intentional preferences versus preferences over specific choices: a user study

机译：比较意向性偏好与偏好对特定选择的有效性：一项用户研究

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Many works have proposed the enrichment of database query languages with preferences, aiding the user to better rank the results. In this work we propose and examine the hypothesis that effective preference specification in many cases presupposes knowledge of the information space and the available choices. Otherwise, the expression of intentional preferences can be a tiresome process, leading to non-optimal results. We designed a user study from an information systems perspective, where participants had to express their preferences for buying a new car (intentional preferences) and then select the most preferred car from a list (preferences over specific choices). The results showed that only 20% of the users expressed intentional preferences that led to the finally selected car. The conducted statistical hypothesis testing supports the results with a 1 % error. Consequently, we argue that the ability to gradually express preferences while exploring the available choices is beneficial for effectively and efficiently ranking a set of choices.
机译：许多工作提出使用首选项来丰富数据库查询语言，以帮助用户更好地对结果进行排名。在这项工作中，我们提出并检验了以下假设：有效的偏好规范在许多情况下都以对信息空间和可用选择的了解为前提。否则，故意偏好的表达可能是一个烦人的过程，从而导致非最佳结果。我们从信息系统的角度设计了一项用户研究，参与者必须表达自己对购买新车的偏好（有意的偏好），然后从列表中选择最喜欢的汽车（对特定选择的偏好）。结果表明，只有20％的用户表达了最终选择汽车的故意偏好。进行的统计假设检验以1％的误差支持结果。因此，我们认为在探索可用选择的同时逐渐表达偏好的能力有利于有效地对一组选择进行排名。

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