Retrieval and representations

Learn a space where closeness means something, search it and rank the results

3 exercises

Each exercise is graded automatically, in your browser. The full statements are available once you have an account.

1. What this is for in real life

   Searching today no longer means finding the same words: it means finding what means the same thing. To do this, you turn each text, image or sound into a list of numbers, and look for the closest ones. - Finding a…

2. The lost records

   The museum you work for is moving its storerooms. Each object had a photo and a descriptive record written by a curator. Both were digitized: one program summarized each photo in 48 numbers, another summarized each…

3. The museum's photo library

   The move of the storerooms is over, and the museum is opening its online photo library to researchers. A researcher describes in writing the object whose image they want ("bronze cup with two handles, foliage…