Empirical Minimum Bayes Risk Prediction
| Autor: | Alan L. Yuille, Dhruv Batra, Daniel Tarlow, Vittal Premachandran |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Jaccard index
Computer science Semantics (computer science) Decision theory 02 engineering and technology 010501 environmental sciences Machine learning computer.software_genre 01 natural sciences Bayes' theorem Artificial Intelligence 0202 electrical engineering electronic engineering information engineering Code (cryptography) 0105 earth and related environmental sciences Measure (data warehouse) business.industry Applied Mathematics Probabilistic logic Image segmentation Computational Theory and Mathematics 020201 artificial intelligence & image processing Computer Vision and Pattern Recognition Artificial intelligence Data mining business computer Software |
| Zdroj: | IEEE transactions on pattern analysis and machine intelligence. 39(1) |
| ISSN: | 1939-3539 |
| Popis: | When building vision systems that predict structured objects such as image segmentations or human poses, a crucial concern is performance under task-specific evaluation measures (e.g., Jaccard Index or Average Precision). An ongoing research challenge is to optimize predictions so as to maximize performance on such complex measures. In this work, we present a simple meta-algorithm that is surprisingly effective – Empirical Min Bayes Risk . EMBR takes as input a pre-trained model that would normally be the final product and learns three additional parameters so as to optimize performance on the complex instance-level high-order task-specific measure. We demonstrate EMBR in several domains, taking existing state-of-the-art algorithms and improving performance up to 8 percent, simply by learning three extra parameters. Our code is publicly available and the results presented in this paper can be replicated from our code-release. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|