Register
Courses Courses Feedback Feedback
Filter

Recent questions

1 1 vote
1 answers 1 answer
2.0k
2.0k views
What are the best tools and resources for learning programming?
I am wondering if anyone can suggest the best resources and tools for learning programming?
10 10 votes
2 answers 2 answers
4.9k
4.9k views
How to use LinkedIn Learning (formerly Lynda.com) for free?
I heard some people use Lynda.com resources for free. Could someone let me know how does it work?
0 0 votes
1 1 answer
1.7k
1.7k views
How to reshape in pandas dataframe?
Dataframe looks like belowI have dataframe like above. which I want to a~t reshape (a~t, 1)I want to reshape dataframe like below ( b~t column is go to under the a column...
0 0 votes
1 1 answer
566
566 views
Is digital marketing and marketing internships worth it for a data science student?
it's about data science career
3 3 votes
2 answers 2 answers
8.4k
8.4k views
How to calculate Softmax Regression probabilities in this example?
The scatter plot of Iris Dataset is shown in the figure below. Assume Softmax Regression is used to classify Iris to Setosa, Versicolor, or Viriginica using just petal le...
3 3 votes
1 answers 1 answer
9.4k
9.4k views
How to calculate feed-forward (forward-propagation) in neural network?
In the figure below, a neural network is shown. Calculate the following:1) How many neurons do we have in the input layer and the output layer?2) How many hidden layers d...
1 1 vote
1 1 answer
2.7k
2.7k views
How do I reduce RMSE in a Random Forest Regressor?
I preprocessed the data, normalized the numerical features, and did one hot encoding for the categorical ones. I end up with a model with R^2=0.7 and RMSE which is 15% of...
1 1 vote
1 1 answer
851
851 views
What is the problem of putting a laptop hdd to desktop computer?
Can i put laptop hdd to desktop and what problem makes
2 2 votes
1 answers 1 answer
6.6k
6.6k views
How to update weights using gradient decent algorithm?
For the below neural network, imagine we are going to use the backpropagation algorithm to update weights. If the Bias (b) in this problem is always 0 (ignore bias when y...
1 1 vote
0 0 answers
7.8k
7.8k views
Looking for guidance on whether I have the necessary data to answer a Regression question
Hi everyone.I'm currently working on my final project for a Data Science degree and after a month of literature review, exploratory analysis and model testing, I'm not su...
3 3 votes
1 answers 1 answer
10.8k
10.8k views
How to calculate Softmax Regression probabilities?
The scatter plot of Iris Dataset is shown in the figure below. Assume Softmax Regression is used to classify Iris to Setosa, Versicolor, or Viriginica using just petal le...
1 1 vote
1 1 answer
586
586 views
model.predict is abnormal
the code is import numpy as np import pandas as pd from keras.models import Sequential from keras.layers import Dense, LSTM, Dropout from keras.layers.core import Dense, ...
1 1 vote
1 1 answer
1.3k
1.3k views
Determine weights on the paths that connect to the different data points in a neural network?
How do you determine the weight values that connect to the other data points when solving for our output in neural networks?
3 3 votes
1 answers 1 answer
7.4k
7.4k views
How to calculate LogLoss in logistic regression?
The dataset of pass/fail in an exam for 5 students is given in the table below. If we use Logistic Regression as the classifier and assume the model suggested by the opti...
2 2 votes
1 answers 1 answer
13.3k
13.3k views
How to calculate probability in Logistic Regression?
The dataset of pass/fail in an exam for 5 students is given in the table below. If we use Logistic Regression as the classifier and assume the model suggested by the opti...
0 0 votes
1 1 answer
901
901 views
How to open Jupyter notebook files on Windows or Mac without web browser?
0 0 votes
2 answers 2 answers
1.1k
1.1k views
Who can write a recursive Python program for Fibonacci sequence 0,1,1,2,3,5,8,...?
Please also check if the fibo(7) = 8
1 1 vote
1 1 answer
548
548 views
I fit a many different models to my data set and I still get horrible accuracy. Any suggestions?
I'm trying to create a regression with a data set that does not contain any nulls and has a very few outliers. I fit a linear regression, a random forest, and a gbm model...
1 1 vote
1 1 answer
602
602 views
What to install on a Linux VPS to remotely work with it?
1 1 vote
1 1 answer
1.1k
1.1k views
How do you visualize/present the predicted output of a random forest model with large trees?
I’ve heard that it’s hard to visualize the output of random forest models with large trees/forest but I’m finding it hard to understand what the use case for the model i...
1 1 vote
1 1 answer
2.3k
2.3k views
Do you have a cheatsheet for Data Science?!
1 1 vote
1 1 answer
1.1k
1.1k views
How to use Watson Assistant V2 in my nodejs code?
I wanted to use Watson Assistant V2 in my following nodejs code, but it cannot be found and gave me error.var AssistantV2 = require('watson-developer-cloud/assistant/v2')...
Page: