Recent questions tagged machine

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machine learning - What is "Parameter" layer in caffe?

Recently I came across "Parameter" layer in caffe. It seems like this layer exposes its internal parameter blob to ... you give a usage example? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - GPU is not used for calculations despite tensorflow-gpu installed

My computer has the following software installed: Anaconda (3), TensorFlow (GPU), and Keras. There are two Anaconda ... what can be going wrong? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Spark data type guesser UDAF

Wanted to take something like this https://github.com/fitzscott/AirQuality/blob/master/HiveDataTypeGuesser.java and ... as string/varchar). See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Does test file in weka requires same or less number of features as train?

I have prepared two different .arff files from two different datasets one for testing and other for training. Each of them ... ", false)); } } See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Run ML algorithm inside map function in Spark

So I have been trying for some days now to run ML algorithms inside a map function in Spark. I posted a ... to do? What are the alternatives? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - How to write multivariate logarithmic regression with Python and sklearn?

I wrote a code for multivariate polynomial regression, I used polynomial features and transformation function from sklearn. Is ... 780.6, 7)) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - unary class text classification in weka?

I have a training dataset (text) for a particular category (say Cancer). I want to train a SVM classifier for ... I do to get this behavior? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Understanding convolutional layers shapes

I've been reading about convolutional nets and I've programmed a few models myself. When I see visual diagrams of ... t know what the depth is. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Dictvectorizer for list as one feature in Python Pandas and Scikit-learn

I have been trying to solve this for days, and although I have found a similar problem here How can i ... Anderson non-chinese Po Lee chinese See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Why do I get good accuracy with IRIS dataset with a single hidden node?

I have a minimal example of a neural network with a back-propagation trainer, testing it on the IRIS data set. ... to me what is happening here? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Why does the importance parameter influence performance of Random Forest in R?

When using random forests in R I came across the following situation: library(randomForest) set.seed(42) data( ... the performance of the model? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Input/output error while using google colab with google drive

When I use google colab I get this error more than once and randomly Sometimes it works and sometimes not ... any solutions for this bug See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Why is the accuracy coming as 0% ? MATLAB LIBSVM

I extracted PCA features using: function [mn,A1,A2,Eigenfaces] = pca(T,f1,nf1) m=mean(T,2), %T ... Any suggestions will be greatly appreciated. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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633 views

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machine learning - Process for oversampling data for imbalanced binary classification

I have about a 30% and 70% for class 0 (minority class) and class 1 (majority class). Since I do not ... is considered good practice. Thank you! See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - Force `table` to include all factors from both arrays in R

I am using the following R code to produce a confusion matrix comparing the true labels of some data to the output ... same row and col labels) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - How to give variable size images as input in keras

I am writing a code for image classification for two classes using keras with tensorflow backend. My images are stored ... as input to my model. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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machine learning - How to write a custom pooling layer module in tensor flow?

I have thought that adding a new module which will do the center pooling. I was looking in the tensorflow ... to set the backpropogation code. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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574 views

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machine learning - How to specify split in a decision tree in R programming?

I am trying to apply decision tree here. Decision tree takes care of splitting at each node itself. But at first ... + marStat, data = tsdata) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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646 views

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machine learning - What is "batch normalizaiton"? why using it? how does it affect prediction?

Recently, many deep architectures use "batch normalization" for training. What is "batch normalization"? What does it ... phase of the net. See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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679 views

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machine learning - Choosing random_state for sklearn algorithms

I understand that random_state is used in various sklearn algorithms to break tie between different predictors ( ... safeguard against this ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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735 views

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machine learning - Spiking neural networks

Which is the book one should start with in the domain of spiking neural networks? I know about Gerstner's " ... for real-word applications.) " See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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654 views

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machine learning - Fully Convolutional Network Training Image Size

I'm trying to replicate the results of Fully Convolutional Network (FCN) for Semantic Segmentation using ... rather than placeholder? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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632 views

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machine learning - How should "BatchNorm" layer be used in caffe?

I am a little confused about how should I use/insert "BatchNorm" layer in my models. I see several different ... use"BatchNorm" layer in caffe? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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684 views

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machine learning - How should "BatchNorm" layer be used in caffe?

I am a little confused about how should I use/insert "BatchNorm" layer in my models. I see several different ... use"BatchNorm" layer in caffe? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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552 views

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machine learning - How to adaptively add and use face images collected while authentication to improve performance of face authentication?

My current project is to build a face authentication system. The constraint I have is: during enrollment, the user ... and smartly?? --Thanks See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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787 views

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machine learning - Weighted Kmeans R

I want to do a Kmeans clustering on a dataset (namely, Sample_Data) with three variables (columns) such as below: ... the model? Thank you all See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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566 views

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machine learning - Comparing AUC, log loss and accuracy scores between models

I have the following evaluation metrics on the test set, after running 6 models for a binary classification problem: ... models is the best ? See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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681 views

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machine learning - clustering and matlab

I'm trying to cluster some data I have from the KDD 1999 cup dataset the output from the file looks like this ... 'markersize',15,'LineWidth',2) See Question&Answers more detail:os...

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

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