您好,欢迎访问知识创客N-免费论文下载

上传文档

当前位置:首页 > 学术论文 > 国外论文 > Mining Sequential Patterns

Mining Sequential Patterns

  • 不*心
  • 0 次阅读
  • 0 次下载
  • 2020-12-12 15:51:42
VIP免费
二扫码支付 微信
二扫码支付 支付宝

还剩... 页未读,继续阅读

免费阅读已结束,点击付费阅读剩下 ...

ⓞ 0 知识点,已有0人购买

免费阅读

阅读已结束,您可以下载文档离线阅读

ⓞ 10 知识点,已有0人下载

付费下载
文档简介:

MiningSequentialPatternsRakeshAgrawalRamakrishnanSrikant*IBMAlmadenResearchCenter650HarryRoad,SanJose,CA95120AbstractWearegivenalargedatabaseofcustomertransac-tions,whereeachtransactionconsistsofcustomer-id,transactiontime,andtheitemsboughtinthetransac-tion.Weintroducetheproblemofminingsequentialpattrriisoversuchdatabases.Wepresentthreealgo-rithmstosolvethisproblem,andempiricallyevalu-atetheirperformanceusingsyntheticdata.Twooftheproposedalgorithms,AprioriSomeandApriori-All,havecomparableperformance,albeitAprioriSomeperformsalittlebetterwhentheminimumnumberofcustomersthatmustsupportasequentialpatternislow.Scale-upexperimentsshowthatbothApri-oriSomeandAprioriAllscalelinearlywiththenum-berofcustomertransactions.Theyalsohaveexcel-lentscale-uppropertieswithrespecttothenumberoftransactioiispercustomerandthenumberofitemsinatransartion.1IntroductionDaIal)a~(~miningismotivatedbythedecisionsup-port.prol)lciiifacedbymostlargeretailorganizations.Progressinbar-codetechnologyhasmadeitpossibleforretailorganizationstocollectandstoremassiveamount.sofsalesdata,referredtoasthebasketdata.Arecordinsuchdatatypicallyconsistsofthetrans-actiont1at.eandtheitemsboughtinthetransaction.Veryoften,datarecordsalsocontaincustomer-id,par-ticularlywhenthepurchasehasbeenmadeusingacredit.cardorafrequent-buyercard.Catalogcompa-niesalsocollectsuchdatausingtheorderstheyre-ceive.Weint.roducetheproblemofminingsequenttalpat-ternsoverthisdata.Anexampleofsuchapatternis‘AlsoDepartmentofComputerScience,UniversityofWis-c

不*心
不*心
  • 1797

    文档
  • 200

    金币
Ta的主页 发私信

1797篇文档

相关搜索

Mining Sequential Patterns

评论

发表评论
< /12 > 付费下载 ⓞ 10 知识点

Powered by DS文库

Copyright © 知识创客N-免费论文下载 All Rights Reserved. 蜀ICP备2020030266号-1
×
保存成功
$urls = array( 'http://www.example.com/1.html', 'http://www.example.com/2.html', ); $api = 'http://data.zz.baidu.com/urls?site=https://www.fabuzhijia.cn&token=SLuZ3R4dqpKJoC8K'; $ch = curl_init(); $options = array( CURLOPT_URL => $api, CURLOPT_POST => true, CURLOPT_RETURNTRANSFER => true, CURLOPT_POSTFIELDS => implode("\n", $urls), CURLOPT_HTTPHEADER => array('Content-Type: text/plain'), ); curl_setopt_array($ch, $options); $result = curl_exec($ch); echo $result;