no code implementations • 29 Jan 2019 • Oosterhuis Harrie, Culpepper J. Shane, de Rijke Maarten
Second, we evaluate the potential gains that can be achieved in terms of memory requirements.
no code implementations • 29 Jan 2019 • Oosterhuis Harrie, de Rijke Maarten
Our findings show that the theoretical bounds of DBGD do not apply to any common ranking model and, furthermore, that the performance of DBGD is substantially worse than PDGD in both ideal and worst-case circumstances.
1 code implementation • 26 Nov 2017 • Oosterhuis Harrie, de Rijke Maarten
Conversely, simpler models can be optimized on fewer interactions and thus provide a better user experience, but they will converge towards suboptimal rankings.
1 code implementation • 26 Nov 2017 • Oosterhuis Harrie, de Rijke Maarten
We show empirically that, compared to previous multileaved comparison methods, PPM is more sensitive to user preferences and scalable with the number of rankers being compared.