myui commented on issue #199: [WIP][HIVEMALL-171] Tracing functionality for prediction of DecisionTrees URL: https://github.com/apache/incubator-hivemall/pull/199#issuecomment-536013346 ## Show decision paths for each Decision Tree ```sql SELECT t.passengerid, decision_path(m.model_id, m.model, t.features, '-classification') FROM model_rf m LEFT OUTER JOIN -- CROSS JOIN test_rf t limit 3; ``` |passengerid|path| |:-|:-| |892 | ["2 [0.0] = 0.0","0 [3.0] = 3.0","1 [696.0] != 107.0","7 [7.8292] <= 7.9104","1 [696.0] != 828.0","1 [696.0] != 391.0","0 [0.961038961038961, 0.03896103896103896]"] | |1309 | ["2 [0.0] = 0.0","0 [3.0] = 3.0","1 [1306.0] != 107.0","7 [22.3583] > 12.675","1 [1306.0] != 429.0","1 [1306.0] != 65.0","6 [117.0] != 481.0","6 [117.0] != 251.0","0 [0.9466666666666667, 0.05333333333333334]"] | |1308 | ["2 [0.0] = 0.0","0 [3.0] = 3.0","1 [1305.0] != 107.0","7 [8.05] > 7.987500000000001","1 [1305.0] != 429.0","1 [1305.0] != 65.0","7 [8.05] <= 8.08125","1 [1305.0] != 338.0","1 [1305.0] != 220.0","6 [889.0] != 558.0","0 [1.0, 0.0]"] | ```sql SELECT t.passengerid, decision_path(m.model_id, m.model, t.features, '-classification', array('pclass','name','sex','age','sibsp','parch','ticket','fare','cabin','embarked')) FROM model_rf m LEFT OUTER JOIN -- CROSS JOIN test_rf t limit 3; ``` |passengerid|path| |:-|:-| | 892 | ["sex [0.0] = 0.0","pclass [3.0] = 3.0","name [696.0] != 107.0","fare [7.8292] <= 7.9104","name [696.0] != 828.0","name [696.0] != 391.0","0 [0.961038961038961, 0.03896103896103896]"] | | 1309 | ["sex [0.0] = 0.0","pclass [3.0] = 3.0","name [1306.0] != 107.0","fare [22.3583] > 12.675","name [1306.0] != 429.0","name [1306.0] != 65.0","ticket [117.0] != 481.0","ticket [117.0] != 251.0","0 [0.9466666666666667, 0.05333333333333334]"] | | 1308 | ["sex [0.0] = 0.0","pclass [3.0] = 3.0","name [1305.0] != 107.0","fare [8.05] > 7.987500000000001","name [1305.0] != 429.0","name [1305.0] != 65.0","fare [8.05] <= 8.08125","name [1305.0] != 338.0","name [1305.0] != 220.0","ticket [889.0] != 558.0","0 [1.0, 0.0]"] | ```sql SELECT t.passengerid, decision_path(m.model_id, m.model, t.features, '-classification', array('pclass','name','sex','age','sibsp','parch','ticket','fare','cabin','embarked'), array('no','yes')) FROM model_rf m LEFT OUTER JOIN -- CROSS JOIN test_rf t limit 3; ``` |passengerid|path| |:-|:-| | 892 | ["sex [0.0] = 0.0","pclass [3.0] = 3.0","name [696.0] != 107.0","fare [7.8292] <= 7.9104","name [696.0] != 828.0","name [696.0] != 391.0","no [0.961038961038961, 0.03896103896103896]"] | | 1309 | ["sex [0.0] = 0.0","pclass [3.0] = 3.0","name [1306.0] != 107.0","fare [22.3583] > 12.675","name [1306.0] != 429.0","name [1306.0] != 65.0","ticket [117.0] != 481.0","ticket [117.0] != 251.0","no [0.9466666666666667, 0.05333333333333334]"] | | 1308 | ["sex [0.0] = 0.0","pclass [3.0] = 3.0","name [1305.0] != 107.0","fare [8.05] > 7.987500000000001","name [1305.0] != 429.0","name [1305.0] != 65.0","fare [8.05] <= 8.08125","name [1305.0] != 338.0","name [1305.0] != 220.0","ticket [889.0] != 558.0","no [1.0, 0.0]"] | ```sql SELECT t.passengerid, decision_path(m.model_id, m.model, t.features, '-classification -no_sumarize') FROM model_rf m LEFT OUTER JOIN -- CROSS JOIN test_rf t limit 3; ``` |passengerid|path| |:-|:-| | 892 | ["2 [0.0] = 0.0","0 [3.0] = 3.0","1 [696.0] != 107.0","7 [7.8292] <= 7.9104","1 [696.0] != 828.0","1 [696.0] != 391.0","0 [0.961038961038961, 0.03896103896103896]"] | | 1309 | ["2 [0.0] = 0.0","0 [3.0] = 3.0","1 [1306.0] != 107.0","7 [22.3583] > 7.9104","1 [1306.0] != 429.0","1 [1306.0] != 65.0","7 [22.3583] > 12.675","6 [117.0] != 481.0","6 [117.0] != 251.0","0 [0.9466666666666667, 0.05333333333333334]"] | | 1308 | ["2 [0.0] = 0.0","0 [3.0] = 3.0","1 [1305.0] != 107.0","7 [8.05] > 7.9104","1 [1305.0] != 429.0","1 [1305.0] != 65.0","7 [8.05] <= 12.675","7 [8.05] <= 10.65205","1 [1305.0] != 338.0","1 [1305.0] != 220.0","6 [889.0] != 558.0","7 [8.05] <= 8.08125","7 [8.05] > 7.987500000000001","0 [1.0, 0.0]"] | ```sql SELECT t.passengerid, decision_path(m.model_id, m.model, t.features, '-classification -no_sumarize -no_verbose') FROM model_rf m LEFT OUTER JOIN -- CROSS JOIN test_rf t limit 3; ``` |passengerid|path| |:-|:-| | 892 | ["2 = 0.0","0 = 3.0","1 != 107.0","7 <= 7.9104","1 != 828.0","1 != 391.0","0"] | | 1309 | ["2 = 0.0","0 = 3.0","1 != 107.0","7 > 7.9104","1 != 429.0","1 != 65.0","7 > 12.675","6 != 481.0","6 != 251.0","0"] | | 1308 | ["2 = 0.0","0 = 3.0","1 != 107.0","7 > 7.9104","1 != 429.0","1 != 65.0","7 <= 12.675","7 <= 10.65205","1 != 338.0","1 != 220.0","6 != 558.0","7 <= 8.08125","7 > 7.987500000000001","0"] | ```sql SELECT t.passengerid, decision_path(m.model_id, m.model, t.features, '-classification -no_sumarize -no_verbose -no_leaf') FROM model_rf m LEFT OUTER JOIN -- CROSS JOIN test_rf t limit 3; ``` |passengerid|path| |:-|:-| | 892 | ["2 = 0.0","0 = 3.0","1 != 107.0","7 <= 7.9104","1 != 828.0","1 != 391.0"] | | 1309 | ["2 = 0.0","0 = 3.0","1 != 107.0","7 > 7.9104","1 != 429.0","1 != 65.0","7 > 12.675","6 != 481.0","6 != 251.0"] | | 1308 | ["2 = 0.0","0 = 3.0","1 != 107.0","7 > 7.9104","1 != 429.0","1 != 65.0","7 <= 12.675","7 <= 10.65205","1 != 338.0","1 != 220.0","6 != 558.0","7 <= 8.08125","7 > 7.987500000000001"] | ```sql SELECT t.passengerid, decision_path(m.model_id, m.model, t.features, '-classification -no_verbose -no_leaf') FROM model_rf m LEFT OUTER JOIN -- CROSS JOIN test_rf t limit 3; ``` |passengerid|path| |:-|:-| | 892 | ["2 = 0.0","0 = 3.0","1 != 107.0","7 <= 7.9104","1 != 828.0","1 != 391.0"] | | 1309 | ["2 = 0.0","0 = 3.0","1 != 107.0","7 > 12.675","1 != 429.0","1 != 65.0","6 != 481.0","6 != 251.0"] | | 1308 | ["2 = 0.0","0 = 3.0","1 != 107.0","7 > 7.987500000000001","1 != 429.0","1 != 65.0","7 <= 8.08125","1 != 338.0","1 != 220.0","6 != 558.0"] | ```sql SELECT t.passengerid, decision_path(m.model_id, m.model, t.features, '-classification -no_verbose -no_leaf', array('pclass','name','sex','age','sibsp','parch','ticket','fare','cabin','embarked'), array('no','yes')) FROM model_rf m LEFT OUTER JOIN -- CROSS JOIN test_rf t limit 3; ``` |passengerid|path| |:-|:-| | 892 | ["sex = 0.0","pclass = 3.0","name != 107.0","fare <= 7.9104","name != 828.0","name != 391.0"] | | 1309 | ["sex = 0.0","pclass = 3.0","name != 107.0","fare > 12.675","name != 429.0","name != 65.0","ticket != 481.0","ticket != 251.0"] | | 1308 | ["sex = 0.0","pclass = 3.0","name != 107.0","fare > 7.987500000000001","name != 429.0","name != 65.0","fare <= 8.08125","name != 338.0","name != 220.0","ticket != 558.0"] | ## Show frequently appeared branch ```sql WITH tmp as ( SELECT decision_path(m.model_id, m.model, t.features, '-classification -no_verbose -no_leaf', array('pclass','name','sex','age','sibsp','parch','ticket','fare','cabin','embarked')) as path FROM model_rf m LEFT OUTER JOIN -- CROSS JOIN test_rf t ) select r.branch, count(1) as cnt from tmp l LATERAL VIEW explode(l.path) r as branch group by r.branch order by cnt desc limit 100; ``` |branch|cnt| |:-|:-| | sex = 0.0 | 112782 | | sex != 0.0 | 68905 | | pclass = 3.0 | 55387 | | pclass != 3.0 | 53513 | | embarked != 1.0 | 42619 | | parch <= 0.5 | 33110 | | pclass != 1.0 | 31776 | | ticket != 71.0 | 27084 | | ... | ... |
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