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2007-11-30

他们的优势和我们的优势

Posted in 实验室, Web Data Management at 13:14 by 仲远

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Zhongyuan Wang

97100fe403b8

?????????????????????????Deep Web?????
??????????????????????????
????????????????????????????????????

...查看全文

2007-11-29

大脑与CPU

Posted in 随笔 at 20:27 by 仲远

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???????????????????????????????????????????????
?????????????????????????CPU???????????????
???????

...查看全文

2007-11-28

路漫漫其修远兮,何其有极?

Posted in 随笔 at 23:03 by 仲远

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???????????????????????????????????????????????????????????????????????????????????
JobLife
Jobtong?????
DBRef?????
12?8?????????
12?4?SPJ??
12?3??????????????
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12?3????????
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...查看全文

2007-11-22

SQL Server查询优化核心实现机制介绍(SQL Server Query Optimization)

Posted in 随笔, 实验室, Web Data Management at 1:14 by 仲远

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???????????????????????????????????????SQL Server?????????(SQL Server Query Optimization)????Optimization????Query Tunning????????SQL Server???????,???????????,??SQL Server 2000?SQL Server 2005??????
????????SQL Server???????????Prakash Sundaresan (???)??: Thank you for your advice for SQL Server Query Optimization. The paper list helped me get the point.
?PPT??????????SQL Server????????????????????????SQL Server???????????????????????????
Outline:
SQL Server??????查看全文

2007-11-13

Essential Google(Google文件系统本质论)的PPT

Posted in 实验室, Web Data Management at 20:55 by 仲远

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??9?9???????????Essential Google?Google???????????Google File System?Google?????:??Google??????????????????Google????????Google?BIGTABLE?????????Google?????????????????????PPT????????????????
????4?24??????????????Essential Google????????????????Essential Google?Google?????????PPT?????PPT??????????????????????
??PPT?Outline?:
Motivation & Goals
Problems
Solution?BigTable
File System vs Database
Google’s Database?Google Base
Conclusion &#...查看全文

2007-11-11

我对Uncertainty in Deep Web Data Integration的理解

Posted in 实验室, Web Data Management at 14:24 by 仲远

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??VLDB2007????Uncertain??????????????Data Integration with Uncertainty????????Data Integration???Uncertainty???????????????????Uncertainty???????????
Uncertainty???Web Data Integration??????????Web??????????Uncertainty???????????????????????????????solution???uncertainty???????????????
??????????????????Uncertainty?????????Uncertainty??????????????????????????
????ppt???????????Uncertainty in Data Integration????????????????????????????????4?5???????????????????????????????...查看全文

2007-11-09

07级计算机2班班级风采大赛的视频

Posted in 随笔 at 23:02 by 仲远

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??07????2???????????????
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07???2??????
??IE7.0?????????????????????????????????

(?1???)

(?2???)

...查看全文

2007-11-08

繁忙的11月份啊~

Posted in 随笔, 实验室 at 23:42 by 仲远

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????????????

?????????????????????????
??????????SQL Server???????
???????????Context-Aware Wrapping Synchronized Data Extraction?VLDB2007????
???????????????

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???2007????????Jobtong?????????????
??????????????????????????????
??????4000????????
????????????Proposal
?????????????SPJ???

??????????3?????1??????Jobtong????????????Email??????????????????????????????????????????????
?????????????????????????????...查看全文

2007-11-04

今天聆听了凤凰卫视首席评论员兼中国人民大学校董阮次山先生的讲演

Posted in 随笔 at 23:16 by 仲远

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??????????????????????????????????????????????????????????????????????????????
??????????????“21?????????????????????????”?????????????????????????????????????????~~??????????????????????????????????????????????????
?????????????????????????????????????happy~

...查看全文

2007-11-04

针对JDBC是否释放资源对内存的影响所做的实验

Posted in Java at 17:37 by 仲远

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??10?30?????????JDBC???????????????????????JDBC??Mysql?????Connection?Statement?Resultset???????????????????????????????????????????????????????????????????????????????????8???
(1)?????????Connection???conn?????????????????????????Statement s??Resultset rs: s.close();rs.close()?
?????????1.3G?????
Mem: 92M Active, 29M Inact, 42M Wired, 88K Cache, 32M Buf, 1329M Free
?????????????????12M?????????????????????????12M???
Mem: 104M Active, 29M Inact, 42M Wired, 88K C...查看全文

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