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vitrivr / cineast

Cineast is a multi-feature content-based mulitmedia retrieval engine. It is capable of retrieving images, audio- and video sequences as well as 3d models based on edge or color sketches, textual descriptions and example objects.
MIT License
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Score calculation for sketch-based retrieval features is suboptimal for staged querying #119

Open silvanheller opened 4 years ago

silvanheller commented 4 years ago

Currently, when using color sketches for a stage which is not the first one, it is possible that very little results are shown to the user. This is because for large vector distances, the score is bounded to 0 before limiting to the top k results. This means it is possible to enter a sketch-based stage with e.g. 3000 ids and leave it with just 10, even though the config is looking for the top 2500 results.

This has multiple possible fixes: we can adjust maximum distances, change something about correspondence functions or limit before going to correspondence.

silvanheller commented 3 years ago

Will be tackled by @rahelarnold98 and @sauterl in an upcoming project

lucaro commented 2 years ago

I guess this project has concluded, right? Are there any updates on this?

silvanheller commented 2 years ago

From what I gathered, the project and the evaluation ended up going in a direction which did not contribute anything to this specific issue. Maybe @sauterl can correct my impression, or we can coordinate offline.