Ryan Schmukler
cf6192c81c
fix(id3): fix panic on SplitAttribute being nil
2016-06-28 14:36:48 -04:00
Richard Townsend
7ba57fe6df
trees: Handling FloatAttributes.
...
This patch adds:
* Gini index and information gain ratio as
DecisionTree split options;
* handling for numeric Attributes (split point
chosen naïvely on the basis of maximum entropy);
* A couple of additional utility functions in base/
* A new dataset (see sources.txt) for testing.
Performance on Iris performs markedly without discretisation.
2014-10-26 17:40:38 +00:00
Amit Kumar Gupta
1809a8b358
RandomForest returns error when fitting data with fewer features than the RandomForest plans to use
...
- BaseClassifier Predict and Fit methods return errors
- go fmt ./...
Conflicts:
ensemble/randomforest.go
ensemble/randomforest_test.go
trees/tree_test.go
2014-08-22 13:39:29 +00:00
Amit Kumar Gupta
529b3bcaa5
Avoid renaming packages on import
2014-08-22 13:39:29 +00:00
Amit Kumar Gupta
947ee8380e
Return error instead of panicking when unable to get confusion matrix
2014-08-22 13:39:29 +00:00
Amit Kumar Gupta
21bb2fc9fa
Remove redundant import renames
2014-08-22 07:21:24 +00:00
Richard Townsend
47341b2869
base: Cleaned up duplicate Attribute resolution functions
2014-08-03 15:17:20 +01:00
Richard Townsend
c2d040af30
trees: merge from v2-instances
2014-08-03 15:17:13 +01:00
Niclas Jern
627a5537d3
Comments should be of the form "<Struct> ..." or "<MethodName> ..."
2014-07-18 13:48:28 +03:00
Niclas Jern
32f36f28c3
if block ends with a return statement -> drop this else and outdent its block
2014-07-18 13:20:46 +03:00
Remo Hertig
f77c1dcde0
use multiple return values instead of an array in InstancesTrainTestSplit
2014-06-06 21:33:17 +02:00
Richard Townsend
a6072ac9de
Package documentation
2014-05-19 12:59:11 +01:00
Richard Townsend
45ca6063f1
Not sure if this bagging version is better or not
...
More more similar to "Attribute bagging:improving accuracy of classifier ensembles by using random feature subsets" (Brill)
2014-05-18 11:49:35 +01:00
Richard Townsend
26660e1470
Corrected a problem with pruning, actual ID3 decision tree type
...
Going to modify Bagging to select attributes on its own
2014-05-17 21:45:26 +01:00
Richard Townsend
12ace9def5
Identified source of the low accuracy
2014-05-17 20:37:19 +01:00
Richard Townsend
13c0dc3eba
Reduced-error pruning
2014-05-17 18:06:01 +01:00
Richard Townsend
db3ac3c695
ID3 algorithm working
2014-05-17 17:28:51 +01:00
