raviwells的博客

This article present a notion of impact-oriented negative sequential rules, in which the left side is a postive sequential pattern or its negation, and the right side is a predefined outcome ot irs negation.

quantOS量化开源系统架构中的策略研发模块，由交易专家和金融技术专家共同设计，实现了自动化信号研究、高效策略开发和多维度回测分析，支持Alpha、CTA、套利等策略的实现。JAQS从实战而来，经实盘检验，本地化开发部署，保障策略安全。

一本非常不错的数据挖掘入门书籍。比较清晰的说明了数据挖掘部分的工作，而这也正是行业机器学习模型开发中最基本、最重要的部分。

This thesis proposes to employ an alternative random forest method, the variable importance measure of which can be employed to reliably select relevant predictor variables in any data set. The performance of this method is compared to that of the original random forest method in simulation studies, and is illustrated by an application to the prediction of C-to-U edited sites in plant mitochondrial RNA, re-analyzing the data of that were previously analyzed with the original random forest method.

This thesis explores different aspects of the induction of tree-based regression models from data. The main goal of this study is to improve the predictive accuracy of regression trees,while retaining as much as possible their comprehensibility and computational efficiency.

This chapter includes a brief overview of ensemble learning in general and presents a critique on the utility of multi-objective evolutionary algorithms for their design.

Hive的入门经验整理，基本上满足了初级使用Hive进行数据聚类分析的需要，末尾部分还简单介绍了UDF的基本内容。