Ratings on Information Organization

Personal Value / Network ValueRating systemsWine blogsGood or Bad

Ratings Usage on Adegga.com

Personal valueSelf-organization toolMost users claim: “Wine notes are hard to write, rating is simple”80% of “notes” include only a rating

Ratings Usage on Adegga.com

Network valueDiscover wines through

Top Rated listsFriends lists

Apply ratings on wine recommendationsRatings are very personal.Bad for average ratings.

Rating Systems

Different countries => Different scalesAdegga.com

Ratings in different scales (5, 10, 20 & 100)Rating conversion (delongwine.com) Reading ratings in 5-star scale (to normalize)Original scale & Converted scale

Wine blogs

Different bloggers => Different scalesAdegga.com

Indexing 450 wine blogsMany don’t use ratingsNo standard rating systemAggregation for network value is hard

Ratings on Information Organization

Good+ Useful for personal value+ Useful for network valueBad- No standard scale- Aggregation is hard