classification Questions

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I am working on a binary classification problem using Random forest and using LIME explainer to explain the predictions. I used the below code to generate LIME explanations import lime import lime....
Brannan asked 28/3, 2022 at 11:33

4

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I have a classification problem and I would like to test all the available algorithms to test their performance in tackling the problem. If you know any classification algorithm other than th...
Spessartite asked 25/1, 2017 at 5:48

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When performing classification (for example, logistic regression) with an imbalanced dataset (e.g., fraud detection), is it best to scale/zscore/standardize the features before over-sampling the mi...
Sparry asked 21/1, 2018 at 17:10

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I Can calculate accuracy after each epoch using this code . But, I want to calculate the accuracy for each class at the end . how can i do that? I have two folders train and val . each folder has 7...

2

Analysing time series data of bike trails, I would like to know the time interval for each plateau ,ascent and descent.Sample csv file is uploaded here. import pandas as pd import numpy as np impo...

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I have a dataset Inp1 Inp2 Output A,B,C AI,UI,JI Animals L,M,N LI,DO,LI Noun X,Y AI,UI Extras For these values, I need to apply a ML algorithm. Which algorithm would be best suited to find relatio...
Excisable asked 30/4, 2022 at 12:38

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Given a set of data very similar to the Motley Fool CAPS system, where individual users enter BUY and SELL recommendations on various equities. What I would like to do is show each recommendation a...
Nicholenicholl asked 21/4, 2010 at 22:24

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I have a time-series dataset with two lables (0 and 1). I am using Dynamic Time Warping (DTW) as a similarity measure for classification using k-nearest neighbour (kNN) as described in these two wo...
Whorl asked 13/7, 2019 at 1:30

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I am using an rpart classifier in R. The question is - I would want to test the trained classifier on a test data. This is fine - I can use the predict.rpart function. But I also want to calculate...
Virtuoso asked 14/12, 2011 at 4:6

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After preprocessing my data, like missing value replacement and outlier detection I partitioned my data using randomized and remove percentage filter using WEKA. My dataset is a highly skewed datas...
Teakwood asked 22/6, 2022 at 12:18

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i'm trying to run a very simple example where XGBoost takes some data and do a binary classification. The documentation says that xgboost outputs the probabilities when "binary:logistic" is used ...
Disperse asked 27/6, 2016 at 18:10

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For a particular prediction problem, I observed that a certain variable ranks high in the XGBoost feature importance that gets generated (on the basis of Gain) while it ranks quite low in the SHAP ...

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Attached model shows how to add bias in case of the unbalanced classification problem initial_bias = np.log([pos/neg]). Is there a way to add bias if you have multi-class classification with unbala...
Odeen asked 19/2, 2020 at 18:45

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question 1) The answer to this question suggested that for a binary classification problem I could use num_labels as 1 (positive or not) or 2 (positive and negative). Is there any guideline regardi...
Placer asked 6/4, 2022 at 13:53

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Does any one know how to set parameter of alpha when doing naive bayes classification? E.g. I used bag of words firstly to build the feature matrix and each cell of matrix is counts of words, and ...
Pollak asked 20/11, 2015 at 15:59

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I imported sklearn DecisionBoundaryDisplay via the below command in my Google Colab file. from sklearn.inspection import DecisionBoundaryDisplay And I'm getting the following error. ImportError: ...

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I'm attempting to make a classifier that chooses a rating (1-5) for a item i. For each item i, I have a vector x containing about 40 different quantities pertaining to i. I also have a gold standar...
Windgall asked 16/8, 2010 at 16:25

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I usually get to feature importance using regr = XGBClassifier() regr.fit(X, y) regr.feature_importances_ where type(regr) is . However, I have a pickled mXGBoost model, which when unpacked ret...
Gelation asked 27/8, 2019 at 20:16

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I am new to pyTorch and I am trying to Create a Classifier where I have around 10 kinds of Images Folder Dataset, for this task I am using Pretrained model( MobileNet_v2 ) but the problem is I am n...

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Can someone please explain (with example maybe) what is the difference between OneVsRestClassifier and MultiOutputClassifier in scikit-learn? I've read documentation and I've understood that we u...

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I am using FastAPI to create an API that receives small audio files from a mobile app. In this API I do processing of the signal and I am able to return a response after classifying that sound. The...
Schnorr asked 6/4, 2022 at 11:16

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I am fine tuning longformer and then making prediction using TextClassificationPipeline and model(**inputs) methods. I am not sure why I get different results import pandas as pd import datasets fr...
Silicium asked 5/4, 2022 at 16:47

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I am working on a binary classification using random forest and trying out SHAP to explain the model predictions. However, I would like to convert the SHAP local explanation plots with values into ...

1

I tried to read the docs for RepeatedStratifiedKFold and StratifiedKFold, but couldn't tell the difference between the two methods except that RepeatedStratifiedKFold repeats StratifiedKFold n time...

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According to the documentation it is possible to specify different loss functions to SGDClassifier. And as far as I understand log loss is a cross-entropy loss function which theoretically can hand...
Doucette asked 15/3, 2017 at 3:49

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