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Recent questions tagged classification

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classification - Loss function for class imbalanced binary classifier in Tensor flow

I am trying to apply deep learning for a binary classification problem with high class imbalance between target classes ( ... on how I can build this logic. Question&Answers:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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classification - TypeError(Expected sequence or array-like) when assessing Decision Tree model in Python

I am working with Kaggle's Churn Modeling Dataset (https://www.kaggle.com/shrutimechlearn/churn-modelling), trying ... sequence-or-array-like-when-assessing-decision-tree-model-in...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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classification - Is there a way to classify a set of data as a whole via Pytorch?

I'm currently dealing with a classification task on a CT dataset. In CT datasets, multiple slices belong to one single patient ... -to-classify-a-set-of-data-as-a-whole-via-pytorch...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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442 views

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classification - Pre-Processing and Analysis the hole of data to execute classifier

As a first application, I'm doing preprocessing and analysis(Feature Extraction)of only one signal ECG(MIT-BIH), ... -processing-and-analysis-the-hole-of-data-to-execute-classifier...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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563 views

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classification - Why do I always get the same value as the result in a CNN in pytorch?

Here is my code dataset = pd.read_csv('augmented_data.csv') dataset = dataset.sample(frac=1) class ConvNet(nn.Module): def ... -get-the-same-value-as-the-result-in-a-cnn-in-pytorch...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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367 views

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classification - Need Advice on Image Classfication using Autoencoders

(Excuse me for errors for it is my first time posting) For my project I am aiming to use ... .com/questions/65938010/need-advice-on-image-classfication-using-autoencoders...

asked Oct 7, 2021 in Technique[技术] by 深蓝 (71.8m points)

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601 views

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classification - How to perform cross-validation for SVM in R?

I am trying to build a SVM classifier for medical data (https://drive.google.com/file/d/1lIehAVBzR5B1NHS6-ozvqpJ9TRNK0VJu ... /66061470/how-to-perform-cross-validation-for-svm-in-r...

asked Oct 6, 2021 in Technique[技术] by 深蓝 (71.8m points)

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497 views

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classification - 3D RGB Histogram, SIFT Descriptors and KNN Classifiers in Python

I am a beginner in python and I've been learning it by myself for my final year project. One question, is it possible to ... (rgb & sift) and 1 classifier (knn) in one python code?...

asked Feb 19, 2021 in Technique[技术] by 深蓝 (71.8m points)

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579 views

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classification - Difference between CrossEntropyLoss and NNLLoss with log_softmax in PyTorch?

When I am building a classifier in PyTorch, I have 2 options to do Using the nn.CrossEntropyLoss without any ... approaches. Now, what approach should anyone use, and why?...

asked Jan 27, 2021 in Technique[技术] by 深蓝 (71.8m points)

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