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courses:mapreduce-tutorial:step-28 [2012/01/31 14:33] straka |
courses:mapreduce-tutorial:step-28 [2012/02/05 19:08] straka |
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* has methods '' | * has methods '' | ||
- | Using this type, create an inverted index -- implement a Hadoop job, that for each word creates a list of '' | + | Using this type, create an inverted index -- implement a Hadoop job, that for each word creates a list of '' |
===== Exercise 2 ===== | ===== Exercise 2 ===== | ||
- | Improve the solution to identify the documents by their ids instead of names, i.e., create for each word a sequence of '' | + | Optional. |
- in the first job, create a list of unique document names. Number the documents using the order in this list. | - in the first job, create a list of unique document names. Number the documents using the order in this list. | ||
- in the second job, create for each word a list of '' | - in the second job, create for each word a list of '' | ||
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<table style=" | <table style=" | ||
<tr> | <tr> | ||
- | <td style=" | + | <td style=" |
<td style=" | <td style=" | ||
- | <td style=" | + | <td style=" |
</tr> | </tr> | ||
</ | </ | ||
</ | </ |