锘??xml version="1.0" encoding="utf-8" standalone="yes"?>亚洲毛片在线观看,自拍偷自拍亚洲精品被多人伦好爽,亚洲白色白色永久观看http://m.tkk7.com/wangxinsh55/category/54635.htmlzh-cnThu, 04 Dec 2014 17:46:44 GMTThu, 04 Dec 2014 17:46:44 GMT60Hadoop2.2.0鏋勫緩mahout鐜http://m.tkk7.com/wangxinsh55/archive/2014/12/04/421047.htmlSIMONESIMONEThu, 04 Dec 2014 09:24:00 GMThttp://m.tkk7.com/wangxinsh55/archive/2014/12/04/421047.htmlhttp://m.tkk7.com/wangxinsh55/comments/421047.htmlhttp://m.tkk7.com/wangxinsh55/archive/2014/12/04/421047.html#Feedback0http://m.tkk7.com/wangxinsh55/comments/commentRss/421047.htmlhttp://m.tkk7.com/wangxinsh55/services/trackbacks/421047.htmlhttp://www.cnblogs.com/weiqiang-liu/p/3791330.html

涓錛氫笅杞借蔣浠跺寘

     涓嬭澆閾炬帴錛?/p>

1 http://mirrors.hust.edu.cn/apache/mahout/0.9/

 

 

浜岋細(xì)瑙e帇鏂囦歡

 

tar -zxvf  mahout-distribution-0.9-src.tar.gz -C /usr/share/
tar -zxvf mahout-distribution-0.9.tar.gz -C /usr/share/

 

 

涓夛細(xì)緙栬瘧婧愮爜

    1.cd /usr/share/mahout-distribution-0.9-src

    2.鎵撹ˉ涓?涓嬭澆琛ヤ竵鏂囦歡錛岀劧鍚庝嬌鐢╬atch鍛戒護(hù)鎵撹ˉ涓?/p>

   

Wget https://issues.apache.org/jira/secure/attachment/12629768/1329.patch 
patch -p0 < 1329.patch

 

 

    3.緙栬瘧

 1 mvn clean package -Dhadoop.profile=200 -Dhadoop.2.version=2.2.0 -Dhbase.version=0.68.0-hadoop2 -DskipTests 

 

鍥涳細(xì)鏇挎崲jar鍖?/p>

      鐢ㄥ垰緙栬瘧鐨刯ar鏂囦歡鏇挎崲(/usr/share/mahout-distribution-0.9)鐩綍涓嬬殑jar,鍏?涓?/p>

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mahout-core-0.9.jar
 
mahout-core-0.9-job.jar
 
mahou -examples-0.9.jar
 
mahout-examples-0.9-job.jar
 
mahout-integration-0.9.jar
 
mahout-math-0.9.jar

 



SIMONE 2014-12-04 17:24 鍙戣〃璇勮
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Mahout鍩轟簬Hadoop騫沖彴寤虹珛鐨勬帹鑽愬櫒璇存槑http://m.tkk7.com/wangxinsh55/archive/2014/12/04/421032.htmlSIMONESIMONEThu, 04 Dec 2014 06:39:00 GMThttp://m.tkk7.com/wangxinsh55/archive/2014/12/04/421032.htmlhttp://m.tkk7.com/wangxinsh55/comments/421032.htmlhttp://m.tkk7.com/wangxinsh55/archive/2014/12/04/421032.html#Feedback0http://m.tkk7.com/wangxinsh55/comments/commentRss/421032.htmlhttp://m.tkk7.com/wangxinsh55/services/trackbacks/421032.htmlhttp://www.linuxidc.com/Linux/2012-07/65008.htm

鎺ㄨ崘鍣ㄥ疄鐜扮被鍦細(xì)

org.apache.mahout.cf.taste.Hadoop.item.RecommenderJob銆傚叾杈撳叆鏁版嵁鏀懼湪榛樿杈撳叆鐩綍涓嬶紝浣跨敤mapred.input.dir鍙傛暟鎸囧畾鐨勮緭鍏ユ暟鎹紝鏄痷serID,itemID[,preferencevalue]鍊煎褰㈡垚鐨勬枃鏈枃浠躲傚彲浠ユ湁澶氫釜鏂囦歡瀛樻斁鍦ㄨ鐩綍涓嬨?/p>

榪愯鏃剁浉鍏沖弬鏁板涓嬶細(xì)

numRecommendations錛氫負(fù)姣忎釜鐢ㄦ埛浜х敓鐨勬帹鑽愪釜鏁?"Number of recommendations per user"

usersFile錛氬寘鍚緟鎺ㄨ崘鐢ㄦ埛鐨勭敤鎴稩D鍒楄〃錛?

itemsFile錛氬寘鍚緟鎺ㄨ崘欏圭洰鐨勯」鐩甀D鍒楄〃錛?

filterFile錛氱敤鏉ュ仛鎺ㄨ崘榪囨護(hù)鐨勮緇冩枃浠訛紝鍐呭涓轟嬌鐢ㄩ楀彿鍒嗛殧鐨剈serID,itemID瀵癸紝

booleanData錛氫笉甯︽帹鑽愬肩殑璁粌鏁版嵁鏂囦歡錛?

maxPrefsPerUser錛歁aximum number of preferences considered per user in final recommendation phase錛?

minPrefsPerUser錛歩gnore users with less preferences than this in the similarity computation 錛?nbsp;  maxSimilaritiesPerItem錛歁aximum number of similarities considered per item錛?

maxurrencesPerItem錛歵ry to cap the number of urrences per item to this;

similarityClassname錛歂ame of distributed similarity class to instantiate, alternatively use one of the predefined similarities錛屽彲鐢ㄧ殑鐩鎬技搴︾被鏈夛細(xì)

 SIMILARITY_URRENCE(DistributedurrenceVectorSimilarity.class),

 SIMILARITY_EUCLIDEAN_DISTANCE(DistributedEuclideanDistanceVectorSimilarity.class),

 SIMILARITY_LOGLIKELIHOOD(DistributedLoglikelihoodVectorSimilarity.class),

 SIMILARITY_PEARSON_CORRELATION(DistributedPearsonCorrelationVectorSimilarity.class),

 SIMILARITY_TANIMOTO_COEFFICIENT(DistributedTanimotoCoefficientVectorSimilarity.class),

 SIMILARITY_UNCENTERED_COSINE(DistributedUncenteredCosineVectorSimilarity.class),

 SIMILARITY_UNCENTERED_ZERO_ASSUMING_COSINE(DistributedUncenteredZeroAssumingCosineVectorSimilarity.class),

 SIMILARITY_CITY_BLOCK(DistributedCityBlockVectorSimilarity.class);

RecommendJob榪愯涓緋誨垪MR浠誨姟錛屽湪寮鍙戞椂錛屽彲浠ユ牴鎹嚜宸辯殑闇瑕佽繘琛屾敼鍐欍備絾鏄疪ecommendJob鐢蟲槑鎴恌inal錛岃繖涓瘮杈冨ご鐤箋?/p>

1.itemIDIndex 浠誨姟錛?

map錛氳В鏋愯緭鍏ョ殑itemsFile錛涘皢闀挎暣鍨嬬殑ID閫氳繃綆楁硶鏄犲皠鍒版暣褰㈢殑搴忓彿涓婏紝浠ヤ究鍚庣畫澶勭悊銆傜敱浜庡鐞嗕腑娑夊強(qiáng)鍒扮煩闃佃綆楋紝姣忎竴涓」鐩搴旂煩闃典腑鐨勪竴涓淮搴︼紝鎵浠ュ繀欏誨鐞嗘垚鏁村艦錛涗駭鐢熷簭鍙?ID鍊煎錛?

reducer錛氬搴忓彿-ID瀵硅繘琛岄獙璇侊紝浜х敓搴忓彿-ID鍊煎錛?

2.toUserVector浠誨姟錛?

ToItemPrefsMapper錛氫粠filterFile涓鍙栧亸濂戒俊鎭紝杞垚鐢ㄦ埛-鍋忓ソ鍊煎銆?

ToUserVectorReducer錛氬皢鐢ㄦ埛-鍋忓ソ*錛岃漿鎴愮敤鎴?鍋忓ソ鐭㈤噺瀵癸紝鐭㈤噺琛ㄥ嵆涓烘墍鏈夌殑ItemID銆?/p>

3.countUsers 浠誨姟錛氳綆楃敤鎴鋒暟閲忥紝杈撳嚭涓虹敤鎴鋒暟閲?-絀恒?

4.maybePruneAndTransponse錛屼竴涓悕縐板緢濂囨殑浠誨姟銆?

MaybePruneRowsMapper:杈撳叆涓轟換鍔?鐨勮緭鍑猴紝鐢熸垚閽堝姣忎釜item欏圭洰鐨勬帹鑽愬肩煩闃靛崟鍏冿紝鍗矷tem搴忓彿鍜岀煩闃靛崟鍏冪殑鍊煎銆?

ToItemVectorsReducer錛氳緭鍑轟負(fù)鐭╅樀琛屽彿錛堝嵆Item搴忓彿錛?鐭╅樀琛岀煝閲?

5. RowSimilarityJob: 璁$畻鐩鎬技搴︾煩闃碉細(xì)榪欐槸寮曠敤涓涓幇鏈夌殑浠誨姟鏉ュ畬鎴愯綆楋紝杈撳叆涓轟換鍔?杈撳嚭鐨勭煩闃碉紱杈撳嚭涓虹浉浼煎害鐭╅樀錛屽嵆item-鐩鎬技搴︾煝閲忋傚叾涓浉浼煎害鐭㈤噺鏄綋鍓峣tem鍜屽叾浠杋tem鐨勭浉浼煎害鍊煎艦鎴愮殑鐭㈤噺銆?

6. prePartialMultiply1錛氳緭鍏ヤ負(fù)浠誨姟5鐨勮緭鍑猴紝灝嗙浉浼煎害鐭╅樀涓殑瀵硅綰胯錛屽嵆錛圢,N錛夋暟鍊艱緗負(fù)Double.NaN,涓哄悗緇綆楀仛鍑嗗錛?

7. prePartialMultiply2錛氳緭鍏ヤ負(fù)浠誨姟2鐨勮緭鍑猴紝灝唘ser-錛堥」鐩煝閲忥級錛屾媶鍒嗘垚item-(userId, 鎺ㄨ崘鍊?瀵廣傚鏋滆緗簡usersFile錛屽垯浠呭鐞唘sersFile涓寚瀹氱殑鐢ㄦ埛銆?

8. partialMultiply: 鍚堝茍浠誨姟6鍜?鐨勯杈撳嚭錛屽彉鎴恑tem-(鐩鎬技搴︾煝閲忋乽serId銆佹帹鑽愬? 瀵廣?

9. itemFiltering錛氬鏋滄湁filterFile,鍒欏鐞唂ilterFile鏂囦歡錛岃漿鎹㈡垚item-(鐩鎬技搴︾煝閲忋乽serId銆佹帹鑽愬?瀵廣傚叾涓浉浼煎害鐭㈤噺鐨勫間負(fù)0錛?

aggregateAndRecommend錛氬皢8鍜?鐨勮緭鍑哄悎騫朵綔涓鴻緭鍏ワ紝

PartialMultiplyMapper: 灝唅tem-(鐩鎬技搴︾煝閲忋乽serId銆佹帹鑽愬?闆嗚漿鎹㈡垚userId-(鎺ㄨ崘鍊鹼紝鐩鎬技搴︾煝閲?鍊煎錛?

AggregateAndRecommendReducer錛氭眹鎬籱ap杈撳嚭錛屼駭鐢焨serId-錛?itemId, 鎺ㄨ崘鍊?鍒楄〃錛夊煎錛屽叾涓?itemId, 鎺ㄨ崘鍊?鍒楄〃鏄寜鐓ф帹鑽愬害鏉ユ帓搴忥紝濡傛灉maxPrefsPerUser銆乵inPrefsPerUser銆乵axurrencesPerItem錛屽垯鍙駭 鐢熺鍚堟潯浠剁殑userId鍊煎銆?



SIMONE 2014-12-04 14:39 鍙戣〃璇勮
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mahout緗戞憳http://m.tkk7.com/wangxinsh55/archive/2014/12/03/421004.htmlSIMONESIMONEWed, 03 Dec 2014 09:50:00 GMThttp://m.tkk7.com/wangxinsh55/archive/2014/12/03/421004.htmlhttp://m.tkk7.com/wangxinsh55/comments/421004.htmlhttp://m.tkk7.com/wangxinsh55/archive/2014/12/03/421004.html#Feedback0http://m.tkk7.com/wangxinsh55/comments/commentRss/421004.htmlhttp://m.tkk7.com/wangxinsh55/services/trackbacks/421004.html
http://blog.csdn.net/fansy1990/article/details/23261633

Mahout鎺ㄨ崘綆楁硶API璇﹁В
http://blog.csdn.net/zhoubl668/article/details/13297663

Mahout瀛︿範(fàn)涔婱ahout綆浠嬨佸畨瑁呫侀厤緗佸叆闂ㄧ▼搴忔祴璇曞強(qiáng)鐩稿叧鎺ㄨ崘
http://itindex.net/detail/49323-mahout-%E5%AD%A6%E4%B9%A0-mahout

mahout鐨勬帹鑽愬紩鎿?br />
http://eric-gcm.iteye.com/category/266011

mahout鎺ㄨ崘
http://www.cnblogs.com/jsunday/category/598231.html

鍩轟簬MapReduce鐨処temBase鎺ㄨ崘綆楁硶鐨勫叡鐜扮煩闃靛疄鐜?br />
http://zengzhaozheng.blog.51cto.com/8219051/1557054

mahout learning 浠g爜紺轟緥
http://www.cnblogs.com/wentingtu/archive/2012/03/28/2422450.html

Mahout涓浉浼煎害璁$畻鏂規(guī)硶浠嬬粛
http://blog.csdn.net/samxx8/article/details/7691868


SIMONE 2014-12-03 17:50 鍙戣〃璇勮
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