The risk of trivial solutions in bipartite top ranking
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Description
Given a sample of instances with binary labels, the bipartite top ranking problem is to produce a ranked list of instances whose head is dominated by positives. One popular existing approach to this problem is based on constructing surrogates to a performancemeasure known as the fraction of positives of the top (PTop). In this paper, we theoretically show that the measure and its surrogates have an undesirable property: for certain noisy distributions, it is optimal to trivially predict...[Show more]
Collections | ANU Research Publications |
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Date published: | 2018 |
Type: | Journal article |
URI: | http://hdl.handle.net/1885/173685 |
Source: | Machine Learning |
DOI: | 10.1007/s10994-018-5759-4 |
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File | Description | Size | Format | Image |
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01_Menon_The_risk_of_trivial_solutions_2018.pdf | 743.24 kB | Adobe PDF | Request a copy |
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