| 1 | = 作業一 = |
| 2 | |
| 3 | * 題目:請參考 hadoop_labs/lab013 改成逆向索引(Reverse Index)。使 !ReverseIndex 執行之結果為「"關鍵字"\t"檔案名稱(用逗點隔開)"」型態。 |
| 4 | * 參考: 以[wiki: 連結之執行方法],忽略句點(\.)與逗點(\,),並且忽略大小寫(case.sensitive=false), |
| 5 | * 參考步驟:[[BR]]Here is the reference steps: |
| 6 | {{{ |
| 7 | #!sh |
| 8 | $ hadoop jar WordCount -Dwordcount.case.sensitive=false hw1_input hw1_out -skip pattern.txt |
| 9 | $ hadoop fs -cat hw1_out/part-00000 |
| 10 | }}} |
| 11 | * 參考結果應該為:(路徑不限)[[BR]]The reference result should be as following:(no limitation for the format of "path") |
| 12 | {{{ |
| 13 | and input2 |
| 14 | cloud input1,input2 |
| 15 | course input1,input2,input2 |
| 16 | enjoy input2 |
| 17 | i input1,input2 |
| 18 | like input1,input2 |
| 19 | nctu input1,input2 |
| 20 | this input2 |
| 21 | we input2 |
| 22 | }}} |
| 23 | * 繳交期限:2011年6月13日(一) 上午 11:59 |
| 24 | * Due date: 11:59 AM, Monday, June 13th, Year 2011 |
| 25 | * 繳交方式:將原始碼與報告以附件方式寄至 jazz _AT_ nchc _DOT_ org _DOT_ tw (1) 程式原始碼一份:以 ${學號}.zip 方式壓縮與命名 (2) 報告一份:以 ${學號} 命名。 |
| 26 | * Please e-mail the java source code and report (doc or PDF) to jazz _AT_ nchc _DOT_ org _DOT_ tw |
| 27 | * 提示:[[BR]]Hint: |
| 28 | * 請將 Mapper 輸出、Reducer 輸入輸出的 (Key,Value) 由原本的 (Text, !IntWritable) 改成 (Text, Text) |
| 29 | * Replace (Key,Value) pair from (Text, !IntWritable) to (Text, Text) |
| 30 | * 加分題:(Extra) |
| 31 | * 試將出現次數統計加入結果,亦即參考結果如下:[[BR]]Try to add count of each file in the result, i.e. The reference result should be as following: |
| 32 | {{{ |
| 33 | and input2(1) |
| 34 | cloud input1(1),input2(1) |
| 35 | course input1(1),input2(2) |
| 36 | enjoy input2(1) |
| 37 | i input1(1),input2(1) |
| 38 | like input1(1),input2(1) |
| 39 | nctu input1(1),input2(1) |
| 40 | this input2(1) |
| 41 | we input2(1) |
| 42 | }}} |
| 43 | * 配分比例: |
| 44 | * 標準題原始碼 Source Code:60% |
| 45 | * 報告 Report :20% |
| 46 | * 參考內容入下:Reference Items should be shown in your report |
| 47 | * 封面 Cover : 姓名、學號 ( Your Name and ID ) |
| 48 | * 於 hadoop.nchc.org.tw 執行的擷圖(Screenshot of your program running on hadoop.nchc.org.tw) |
| 49 | * 執行結果 The result of your program |
| 50 | * 加分題:20% |