Lobangclub Developer Challenge 2012

Presented at the awarding ceremony for the Lobangclub developer challenge. Prize is new IPad

Transcript

1. ABOUT US We make a mobile app that allows users to scan the barcode of a product and shows the nearby prices for that product We rely on the community of users to contribute prices via crowdsourcing Tuesday, February 25, 14
2. CROWDSOURCING GREAT ! Can get prices not otherwise available More users = More data Community keeps data up to date CHALLENGES ! Need to make it really easy for users to contribute Varying data quality Products and Prices are not automatically categorized Tuesday, February 25, 14
3. PRODUCT CATEGORIZATION Products need to be categorized to: Allow users to find things they are interested in Follow categories so they are notified when a new price is added Recommend products that a user may be interested in Tuesday, February 25, 14
4. Currently users manually associate items into categories This is really hard work ! Tuesday, February 25, 14
5. We posed a developer challenge to find out: Can a machine be trained to learn from the collective experience of the crowd ? Tuesday, February 25, 14
6. Trival for humans, surprisingly difficult for software “San Miguel Light 6 x 330ml” Human: Alcohol, Beer, Drink Software: Pasta, Spaghetti, Italian? ( San Remo ) Light Bulb, Energy Saving, Electical? ( Light ) Shampoo, Conditioner, Personal Care? ( 330ml ) Tuesday, February 25, 14
7. BAYESIAN NETWORK Build a probabilistic model to represent “causes” leading to “events” San Remo Light Phillips Pasta Beer Light Blub Tuesday, February 25, 14
8. DECISION TREE LEARNING contains “San” ? Yes No ? contains “Remo” ? Yes Pasta contains “Phillips” ? No contains “Miguel” ? Light Bulb Yes No Beer Tuesday, February 25, 14
9. ARTIFICIAL NEURAL NETWORK Map complex relations between data San Miguel Light 330ml Beer Remo Phillips Light Bulb Pasta Shampoo Appliances Drinks Electrical Toiletries Italian Alcohol Tuesday, February 25, 14
10. Much thanks to the following participants: Bryan Bibat Alexander Sales Karl Bryan Paragua Ray Dino Chris Borja Geoffrey Reyes Gino Tria Team Adonis All participants receive a T-Shirt and a chance to present their solution. Congratulations Bryan winner of the new Ipad Thanks John and Michael for organizing the event and this Venue! Tuesday, February 25, 14