python - error with sklearn CalibratedClassifierCV and SVM -


i want use sklearn's calibratedclassifiercv in conjuction sklearn's svc make predictions multiclass (9 classes) prediction problem. when run it, following error. same code run no problem different model (i.e randomforestcalssifier).

kf = stratifiedshufflesplit(y, n_iter=1, test_size=0.2) clf = svm.svc(c=1,probability=true)             sig_clf = calibratedclassifiercv(clf, method="isotonic", cv=kf) sig_clf.fit(x, y)  traceback (most recent call last):   file "<stdin>", line 1, in <module>   file "/home/g/anaconda/lib/python2.7/site-packages/sklearn/calibration.py", line 166, in fit     calibrated_classifier.fit(x[test], y[test])   file "/home/g/anaconda/lib/python2.7/site-packages/sklearn/calibration.py", line 309, in fit     calibrator.fit(this_df, y[:, k], sample_weight) indexerror: index 9 out of bounds axis 1 size 9

this problem of svc using one-vs-one strategy, , therefore decision function having shape (n_samples, n_classes * (n_classes - 1) / 2). possible workaround callibratedclassifiercv(onevsrestclassifier(svc())). if want use sigmoidal calibration, can svc(probability=true) , not use callibratedclassifiercv.

we should fix svc decision function, think.


Comments

Post a Comment

Popular posts from this blog

asp.net mvc - SSO between MVCForum and Umbraco7 -

i need integrate sso between mvcforum (forum of company) , umbraco7 (manages cms company). however struggling shared authentication work. tried several ways suggested on other threads still not running expected. here did: 1. in mvcforum (forum.mywebsite.com) 1.1. machine key in web.xml: <machinekey validationkey="the same key umbraco7" decryptionkey="the same key umbraco7" validation="sha1" decryption="aes" /> 1.2. authenticate forms in web.xml <forms name="my-sso-auth" protection="all" path="/" timeout="43200" domain="forum.mywebsite.com" loginurl="/members/logon" enablecrossappredirects="true" /> 2. in umbraco7 (news.mywebsite.com) 2.1. machine key in web.xml: <machinekey validationkey="the same key mvcforum" decryptionkey="the same key mvcforum" validation="sha1" decryption="aes" /> 2.2. a
Read more

Python Tkinter keyboard using bind -

i have problem using bind option can click button in keyboard, , call function once key pressed. tried taking other codes have similar purpose , saw i'm doing pretty same, though still have problem must've missed. thankful if me this. here's code: # -*- coding: utf-8 -*- #imports tkinter import * pil import imagetk, image import time import tkmessagebox #===========================================================================================================================================# #tkinter class class app(frame): def __init__(self, master=none): frame.__init__(self, master) self.pack() #===========================================================================================================================================# #game pieces classes class board: def __init__(self, rows = 7, columns = 6, picture_height = none, picture_width = none): self.rows = rows self.columns = columns self.picture
Read more

ubuntu - Selenium Node Not Connecting to Hub, Not Opening Port -

i'm trying set demo selenium grid. have digital ocean ubuntu 14.02 droplet. (i have 2 , tried set using 2 different machines got nowhere.) i'm trying run hub , node both locally. here input both hub, node, , nmap results. https://gist.github.com/mekhami/d5bbecca5ff0de9d2dc9 so, node starting tcp connection reset , port it's supposed operate on closed. i have had no luck in number of different options , configurations work. but... of course, worked randomly once. don't know why, don't know did, know 1 brief moment, node connected , saw on grid console. tried run test , went down again , i've never seen come up. please let me know more information can provide. update: randomly came online again. don't know happened, might related timeout or time_wait or going on. this because vm/server not have enough entropy available. to resolve problem, install haveged (or other similar things). the instructions of how install haveged on ubu
Read more