[原文链接:http://engineering.richrelevance.com/recommendations-thompson-sampling/.] [本文链接:http://www.cnblogs.com/breezedeus/p/3775339.html,转载请注明出处] Recommendations with Thompson Sampling 06/05/2014 • Topics: Bayesian, Big data, Data Science by Sergey Fel…

<Programming Collective Intelligence> Chapter2:Making Recommendations 欧几里得距离评价 皮尔逊相关度评价 它相比于欧几里德距离评价,其在数据不是很规范的时候(比如,影评者对影片的评价总是相对于平均水平偏离很大的时候),会给出更好的结果.       如果某人总是倾向于给出比另一个人更高的分值,而两者的分值之差又始终保持一致,则他们依然可能会存在很好的相关性.而欧几里德距离评价会因为一个人的评价之中比另外一个人的更为“严格”(…

 The choice of whether to design your functionality as an interface or an abstract class can sometimes be a difficult one. An abstract class is a class that cannot be instantiated, but must be inherited from. An abstract class may be fully implemen…

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In this Document   Purpose   Questions and Answers   References APPLIES TO: Oracle Process Manufacturing Financials - Version 11.5.9 to 12.1.3 [Release 11.5 to 12.1] Information in this document applies to any platform. All reports that uses XML publ…

by Xavier Amatriain and Justin Basilico (Personalization Science and Engineering) In part one of this blog post, we detailed the different components of Netflix personalization. We also explained how Netflix personalization, and the service as a whol…

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=====Symptom For SAP Business One, version for SAP HANA users, SAP HANA provides a range of database backup and recovery functions. You must follow the instructions in the SAP HANA Administration Guide at http://help.sap.com/hana_appliance to back up…

[论文标题]Amazon.com recommendations: item-to-item collaborative filtering (2003,Published by the IEEE Computer Society) [论文作者]Greg Linden,Brent Smith,and Jeremy York • Amazon.com [论文链接]Paper (5-pages // Double column) [Info] 亚马逊是推荐系统领域最具代表性的公司之一.(还有一家是N…

问题详情 来源是,我在Ambari集群里,安装Hue. 给Ambari集群里安装可视化分析利器工具Hue步骤(图文详解 所遇到的这个问题. 然后,去ambari-server的log日志,查看,如下 cat  /var/log/ambari-server.log SEVERE: The RuntimeException could not be mapped to a response, re-throwing to the HTTP container java.lang.NullPointe…