coursera上的公开课《https://www.coursera.org/course/textanalytics》系列，讲的非常不错哦。
1、text clustering的总体思想：
类似于topic mining，但要求每个text只有一个主题构成！
To generate a document, first
choose a theta_i according to...
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其他好文 时间：
2015-07-19 10:08:20
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134
401.Which of the following are correct about block media recovery? (Choose all that apply.)
A. Physical and logical block corruption is recorded automatically in V$DATABASE_BLOCK_
CORRUPTION.
B. ...
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其他好文 时间：
2015-07-18 14:10:13
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125
478.Identify the two direct sources from where SQL plans can be loaded into the SQL plan baselines.
(Choose two.)
A. Cursor cache
B. Stored outline
C. SQL Tuning Set
D. Automatic Workload Reposit...
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其他好文 时间：
2015-07-18 14:08:27
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175
450.Which of the following are valid program types for a lightweight job? (Choose all that apply.)
A. PLSQL_BLOCK
B. EXECUTABLE
C. JAVA_STORED_PROCEDURE
D. STORED_PROCEDURE
E. EXTERNAL
Answer: A...
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其他好文 时间：
2015-07-18 14:06:33
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126
题目连接http://acm.hdu.edu.cn/showproblem.php?pid=2680Choose the best routeDescriptionOne day , Kiki wants to visit one of her friends. As she is liable t...
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其他好文 时间：
2015-07-17 22:34:47
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123
Manifesto For Performance Testing And EngineeringWe choose to support others in their questfor better performing software and systems as evidenced by ...
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其他好文 时间：
2015-07-17 15:57:32
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143
279.Identify the activities performed as part of the Automatic SQL Tuning process in the maintenance
window? (Choose all that apply.)
A. generating the SQL profile
The safer , easier way to help yo...
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其他好文 时间：
2015-07-17 12:07:22
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134
Jeff's gotncards, each card contains either digit 0, or digit 5. Jeff can choose several cards and put them in a line so that he gets some number. Wha...
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其他好文 时间：
2015-07-16 22:06:14
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128
449.Which of the following objects can be directly referenced by a window object? (Choose all that apply.)
A. Schedule object
B. Program object
C. Job object
D. Resource plan
E. Resource consumer...
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其他好文 时间：
2015-07-16 14:06:25
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179
Good news!! JLR SDD V142 DA-VINA 2534 J2534 installation instruction for you all !!1.Open "computer" > "DVD Drive"> "SDD 142.00_FULL". Choose the lang...
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其他好文 时间：
2015-07-14 19:39:19
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158
