Baselines.md

Baselines

The curent baseline that appears in the leaderboard and achieves 26857.38 points is purely content-based. For a given user u, recommendations are determined as follows:

1. Only consider those items for which active_during_test = 1
2. jobrole-title-based = get top 100 items for which users.jobroles and items.title overlap and rank by the following score: number of overlapping IDs * 3
3. jobrole-tags-based = get top 100 items for which users.jobroles and items.tags overlap and rank by the number of overlapping IDs: number of overlapping IDs * 2
4. discipline-and-region-based = get 100 random items for which users.discipline_id == items.discipline_id AND users.region == items.region. Score of each item = 2
5. industry-and-region-based = get 100 random items for which users.industry_id == items.industry_id AND users.region == items.region. Score of each item = 1
6. Aggregate scores of jobrole-title-based, jobrole-tags-based, discipline-and-region-based and industry-and-region-based and ensure that users.career_level == items.career_level (and if users.career_level is NULL or 0 then simply assume that the carer level is 3).