machine-learning

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Can SVM solution change after shuffling the inputs?

When training a support vector machine (SVM) for classification with exactly the same data I obtain different results based on the order of the inputs, ie. if I shuffle the data I get different SVMs.[详细]

2023-04-11 00:29 分类：问答
Why getting different results with MALLET topic inference for single and batch of documents?

I\'m trying to perform LDA topic modeling with Mallet 2.0.7.I can train a LDA model and get good results, judging by the output from the training session.Also, I can use the inferencer built in that p[详细]

2023-04-10 22:38 分类：问答
Dynamic text-pattern detection algorithm? [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical andcannot be reasonably answered in its current form. For help clari[详细]

2023-04-10 12:58 分类：问答
What does correlation coefficient actually represent [closed]

Closed. This question is off-topic. It is not currently accepting answers. 开发者_如何学编程 Want to improve this question? Update the question so it's on-topic for Stack Overflow.[详细]

2023-04-10 09:34 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
randomForest: how to get 100%-Precision?

I have a dataset of around 3000 positive and 1500 negative samples, with around 1000 features. All features are real number. I want to train a randomForest classifier with \"randomForest\" R package.[详细]

2023-04-10 03:01 分类：问答
Fuzzy c-means tcp dump clustering in matlab

Hi I have some data thats represented like this: 0,tcp,http,SF,239,486,0,0,0,0,0,1,0,0,0,0,0,0,0,0,0,0,8,8,0.00,0.00,0.00,0.00,1.00,0.00,0.00,19,19,1.00,0.00,0.05,0.00,0.00,0.00,0.00,0.00,normal.[详细]

2023-04-09 16:36 分类：问答
Efficient implementation of mutual information in Java

I\'m looking to calculate mutual information between two features, using Java. I\'ve read Calculating Mutual Information For Selecting a Training Set in Java already, but that was a discussion of if[详细]

2023-04-09 16:03 分类：问答
How to extract all the IUPAC names mentioned in the data available from Pubchem(NCBI) into a text file?

I want to build lists of prefixes and suffixes of some length from all the IUPAC names mentioned in Pubchem Database,so that I can use them fu开发者_Python百科rther in my project as a feature.So I wan[详细]

2023-04-09 02:02 分类：问答
Deducing string transformation rules

I have a set of pairs of character strings, e.g.: abba - aba, haha - aha, baa - ba, exb - esp, xa - za The second (right) string in the pair is somewhat similar to the first (left) string.[详细]

2023-04-08 17:18 分类：问答