Summer Milestone 10 Reputation Systems research and exploration Rating Friends Without Making Enemies surabhi and kajal

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Introduction to the paper

Ratings among platform users is a simple task but involves complex subjective dimensions which cannot be overlooked. The paper discusses some of the factors that influence the rating system of an Online Social Networking Site(OSNS): ''

About Couchsurfing
Couchsurfing is an OSNS established in 2003 (before facebook). It lets people build their profiles, connect with people and view their connection's profiles. A user's profiles on Couchsurfing shows the user's friends and how they are rated, and the vouches that others make but not the trust ratings. It is a network of travelers and hosts where hosts are the people who are ready to make a room in their own homes for the travelers to stay. Such a process needs high levels of trust.

Points discussed in the paper

- Challenges faced by the rating system
- Relation and or pattern observed between ‘friendship’ and ‘trust’.
- Reciprocal ratings
- Public versus private rating system and its effect on the reciprocal ratings.
- Quantification of relationships on a predefined scale
- The effect of language and culture on ratings
- Effect of ratings on others reputation
- Timing of ratings relative to the evolution of a relationship

Challenges faced by the rating system
- It was observed that close friendship involves trust factor but high levels of trust need not need good friendship
- Concern over the reaction of friends on rating
- Concern over the effects of rating on a person's profile and reputation
- Very little or no incentive for a negative feedback.
- Influence of similarity of user profiles and preferences on trust ratings