classification

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Python milk library: object weights issue

I\'m trying to use one_vs_one composition of decision trees for multiclass classification. The problem is, when I pass different object weights to a classifier, the result stays the same.[详细]

2023-04-12 02:47 分类：问答
How to use Odds ratio feature selection with Naive bayes Classifier

I want to classify documents (composed of words) into 3 classes (Positive, Negative, Unknown/Neutral). A subset of the document开发者_高级运维 words become the features.[详细]

2023-04-11 17:37 分类：问答
document image processing

I working on an application for processing document images (mainly invoices) and basically, I\'d like to convert certain regions of interest into an XML-structure and then classify the document based[详细]

2023-04-11 05:52 分类：问答
NLP and Machine learning for sentiment analysis [closed]

Closed. This question is seeking recommendations for books, tools, software libraries, and more. It does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-04-10 04:42 分类：问答
What's the difference between ANN, SVM and KNN classifiers?

I am doing remote sensing image classification. I am using the object-oriented method: first I segmented the image to different regions, then I extract t开发者_运维问答he features from regions such as[详细]

2023-04-02 11:00 分类：问答
Liblinear bias very close to zero

I am trying out Liblinear for linear SVM classification on some 2D poi开发者_如何转开发nts (I am using a simple python gui to add points for 2 classes and then draw the line that separates the classes[详细]

2023-04-01 22:28 分类：问答
Haar create sample parse error

I am creating samples in opencv 2.1 by \"opencv_createsamples.exe\", but I\'ve got parse error on line 1.[详细]

2023-04-01 06:06 分类：问答
Building/Running a Streaming Weka Text Classifer in Java

We have been using the Weka Explorer GUI to build a few classifier models. Now Testing is complete we would like to implement this model within a Java application so it can take new messages.[详细]

2023-03-31 17:17 分类：问答
error with NaiveBayes classifier when classify one instance with pretrained model

I have a trained dataset with 125 records. I\'m going to classify new instance using NaiveBayesUpdatable. but when I run naiveBayes (under windows, using weka 3.4), I get the[详细]

2023-03-31 17:04 分类：问答
Crowdsourcing reliability measurements - spam/fraud detection

I\'d like to collect some kind of geographical information from website users - for given set of data they will mark checkbox indicating whether place has or has not given property. Are there any tool[详细]

2023-03-31 04:38 分类：问答