Model Adaptation via Model Interpolation and Boosting for Web Search Ranking
Machine Learning
2019-07-24 v1 Machine Learning
Abstract
This paper explores two classes of model adaptation methods for Web search ranking: Model Interpolation and error-driven learning approaches based on a boosting algorithm. The results show that model interpolation, though simple, achieves the best results on all the open test sets where the test data is very different from the training data. The tree-based boosting algorithm achieves the best performance on most of the closed test sets where the test data and the training data are similar, but its performance drops significantly on the open test sets due to the instability of trees. Several methods are explored to improve the robustness of the algorithm, with limited success.
Cite
@article{arxiv.1907.09471,
title = {Model Adaptation via Model Interpolation and Boosting for Web Search Ranking},
author = {Jianfeng Gao and Qiang Wu and Chris Burges and Krysta Svore and Yi Su and Nazan Khan and Shalin Shah and Hongyan Zhou},
journal= {arXiv preprint arXiv:1907.09471},
year = {2019}
}