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. 2016 Jan 11;50:523–548. doi: 10.1007/s10579-015-9330-7

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© The Author(s) 2016

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 8 — A 500-fold bootstrapping learning curves generated using YamCha: a chunking and b named entity recognition. Training samples range from 25 to 675 records with a step of 25; testing samples are always set to 75 records