首页> 外文会议>Inductive Logic Programming >L-Modified ILP Evaluation Functions for Positive-Only Biological Grammar Learning
【24h】

L-Modified ILP Evaluation Functions for Positive-Only Biological Grammar Learning

机译:L修改的ILP评估函数,用于仅用于肯定的生物语法学习

获取原文
获取原文并翻译 | 示例

摘要

We identify a shortcoming of a standard positive-only clause evaluation function within the context of learning biological grammars. To overcome this shortcoming we propose L-modification, a modification to this evaluation function such that the lengths of individual examples are considered. We use a set of bio-sequences known as neuropeptide precursor middles (NPP-middles). Using L-modification to learn from these NPP-middles results in induced grammars that have a better performance than that achieved when using the standard positive-only clause evaluation function. We also show that L-modification improves the performance of induced grammars when learning on short, medium or long NPPs-middles. A potential disadvantage of L-modification is discussed. Finally, we show that, as the limit on the search space size increases, the greater is the increase in predictive performance arising from L-modification.
机译:我们在学习生物语法的背景下确定了标准的仅肯定条款评估功能的缺点。为克服此缺点,我们提出了L-修改,即对该评估函数的修改,以考虑单个示例的长度。我们使用了一组称为神经肽前体中间物(NPP-中间物)的生物序列。使用L修饰从这些NPP中间语言中学习可以得出比使用标准的仅肯定从句评估功能所获得的语法更好的性能。我们还显示,在短,中或长NPP中间学习时,L修饰可提高归纳语法的性能。讨论了L-修饰的潜在缺点。最后,我们表明,随着对搜索空间大小的限制增加,由L修改引起的预测性能的增加也越大。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号