Empirical Investigation of the user perception, structure, and visual representation of argumentation in recommender sytems (Master Komedia/Informatik)


The proposed thesis topic aims to conduct the offline user study/studies to investigate the user perception, structuring, and presentation of the argumentative explanations in digital cameras recommender system (RS). Where the argumentation in RS is the process of presenting series of positive and negative statements to support users in their decision-making processes, by either supporting or contradicting the recommended items. The topic will address the following research questions: 1) How and which part of the textual information, users perceive as simple explanations or as argumentation, when taking decisions on recommendations? 2) What should be the structure of the argumentations based on the users’ perception of the textual information? 3) How these textual argumentations could be mapped into the visual interaction model? An elaborated offline user study needs to be designed to address the above-mentioned research questions in the domain of Digital Camera recommender system. Through this research the student must be able to develop general structures of argumentation for recommendations using various information sources i.e., user past ratings and feature preferences, preferences of similar users, and contextual information. The research will then explore various interaction designs to visually represent these structured textual argumentations and implement a prototype design.


Sidra Naveed

External PhD Student