Data Science Questions, Problems & Solutions : TransWikia.com ~ Page 101

Maximize the margin formula in support vector machines algorithm

I was recently reading about support vector machines and how they work and I stumbled on an article and came across Maximize the distance margin. Can anyone tell me what...

Asked on 06/19/2021 by Sai Kumar

1 answer

How to calculate similarity between 2 users based on the images they share?

Say there are 2 users, A and B, and they each shared 10 images (in some social media site), which I have collected in 2 folders separately. I want to...

Asked on 06/19/2021

1 answer

How do you perform basic statistical analysis on a Binary Dataset?

I have never worked with a Binary dataset (1 and 0) (True or False) so I'm unsure what kind of statistical tests I should run to draw up simple...

Asked on 06/19/2021

0 answer

Difference between two images but in certain region only

I have two images, where i need to find the difference. i can easily did with the help of SSIM function. Now i want to find the difference between two...

Asked on 06/19/2021 by soumyajeet

0 answer

Which output of a BiLSTM layer should be used for classification

I am trying to implement a BiLSTM layer for a text classification problem and using PyTorch for this.self.bilstm = nn.LSTM(embedding_dim, lstm_hidden_dim//2, batch_first=True, bidirectional=True)lstm_out, (ht, ct) = self.bilstm(embeddings)Now, in some...

Asked on 06/19/2021

1 answer

Pre-processing data - Dataframe manipulation Time Series

I have a question in which I'm not entirely sure in which path to take. I'd appreciate if you could point me in the right direction. Below a screenshot of...

Asked on 06/19/2021

0 answer

Lower Variance vs. Higher Validation Scores

So I'm trying to compare between two models, say model(1) has training accuracy of 90% and validation accuracy of 86%, while model(2) has training accuracy of 87% and validation accuracy...

Asked on 06/19/2021 by Mourad Askar

1 answer

Decision Tree Induction using Information Gain and Entropy

I’m trying to build a decision tree algorithm, but I think I misinterpreted how information gain works. Let’s say we have a balanced classification problem.So, the initial entropy should...

Asked on 06/18/2021 by Krushe

2 answer

Why LSTM models do not require labels for each step?

For time related problems like, for example, stock prediction: Let's say we have 300 days of data, 10 features, and one target: the price. Why, for the training, we only...

Asked on 06/18/2021

2 answer

How to implement gridsearchCV for onevsrestclassifier of LogisticRegression classifier?

parameters = [{'C': [10**-2, 10**-1, 10**0,10**1, 10**2, 10**3]}]model_tunning = GridSearchCV(OneVsRestClassifier(LogisticRegression(penalty='l1')), param_grid=parameters,scoring="f1")model_tunning.fit(x_train_multilabel, y_train)ValueError ...

Asked on 06/18/2021 by Satyam Kumar

2 answer

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