The integration of users ranking/object ratings with PM
As soon we are going to implement users trust management/rating features to the PM, we would like to briefly go over our vision of this part of the PM portal. Any feedback or questions are welcomed.
The object view will be modified so that it contains two small icons which represent:
1. Ranking of user according to HITS algorithm (value 0 Ã¢Â€Â“ 1) who is owner of this object Ã¢Â€Â“ this can be understood as user quality measure
2. Current rank of the entry according to ongoing object ranking Ã¢Â€Â“ as there will be a way of rating objects, we will present this information.
Specifically, we will implement two icons placed in the title bar of object. Icons will represent small bars, the higher bar, the better entry owner/object is. Even though icons will be presented in title bar of an object, they will be small enough not to change its current size. Below the object, one will have an option to rank it. The ranking will be in the form of Ã¢Â€Â˜starsÃ¢Â€Â™ Ã¢Â€Â“ user will have an option of assigning 1 Ã¢Â€Â“ 5 stars for different aspects of object. We will ask similar rating questions as in survey which we did in the past: clarity, correctness, pedagogy, precise and language. Rating will implement aging. It means that, every time an edit is made to the object, value of past ratings will be decreased (probably by 5%-10%). Such a mechanism is required as quality of objects can change as they are edited.
When searching, users will define their default scoring functions for results. Currently, results are scored by TF-IDF measure. Users will have an option of defining the scoring function as function of TF-IDF score, users ranking (HITS) and object rating (stars). The final scoring function will be thus a linear combination of the three above. After given user defines such a scoring function, results presented in response to his query will be ranked using this new scoring function.
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