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Answers by tofighi
1
1 vote
850
850 views
What are the differences among Data Science, Artificial Intelligence and Machine Learning?
What are the differences among Data Science, Artificial Intelligence and Machine Learning?
answered
Mar 4, 2020
General
machine-learning
artificial-intelligence
data-science
+
–
1
1 vote
2.5k
2.5k views
How to convert Jupyter Notebook or a webpage to PDF using Chrome?
Please show us how to print to pdf in Google Colab or any other webpages in Google Chrome?
answered
Feb 27, 2020
General
print
pdf
jupyter-notebook
+
–
0
0 votes
1.0k
1.0k views
How to directly download a file into HDFS?
Is there any way to download a file directly into HDFS?
answered
Feb 27, 2020
Cloud Computing
hadoop
hdfs
curl
big-data
cloud-computing
+
–
1
1 vote
2.8k
2.8k views
How to share a Jupyter Notebook document on Google Colab?
How can I give access to others to view, comment or edit my Jupyter Notebook on Google Colab?
answered
Feb 27, 2020
General
python
jupyter-notebook
google-colab
programming
+
–
0
0 votes
3.8k
3.8k views
What are the most common data types in data science?
What are the main data types?
answered
Feb 19, 2020
General
data-science
data
+
–
1
1 vote
3.3k
3.3k views
Can PCA be used for supervised learning?
Can PCA be used for supervised learning???I've seen some data scientists using PCA to transform their data for only numerical variables.However, some other data scientist...
answered
Feb 18, 2020
Machine Learning
machine-learning
pca
unsupervised-learning
supervised-learning
+
–
0
0 votes
4.9k
4.9k views
How to calculate residual errors for linear regression and interpret regression metrics?
Assuming we have a linear regression equation and some data points (sample), how can we calculate residual error for each data point, and total cost based on the metrics ...
answered
Feb 18, 2020
Machine Learning
machine-learning
linear-regression
residual
mae
mse
rmse
mape
mpe
ml-exercise
ml-midterm
+
–
1
1 vote
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...
answered
Feb 18, 2020
Machine Learning
machine-learning
softmax-regression
softmax
ml-exercise
ml-midterm
ml-final
ele888-midterm
ele888-final
ai-final
+
–
0
0 votes
1.3k
1.3k views
How can I find the "Sate of the art" approaches in Machine Learning?
If I want to find the latest trends in Machine Learning and best approaches known as the "State of the art" approach, what resources I can use?
answered
Feb 18, 2020
Machine Learning
machine-learning
state-of-the-art
codes
+
–
0
0 votes
893
893 views
How to map (string compare) a string with 10000+ strings in DB? which is the best way to do it?
I have a result string like this A, C, D, F, B,In my DB I have 10,000+ combinations like this 1. A, B, C, D 2. A, C, B, I, D, W, Z etc.... Now I want to search for my ...
answered
Feb 18, 2020
Machine Learning
tree
search
database
+
–
0
0 votes
800
800 views
why after applied the OneHotEncoder, it will create one more column whatis that column for?
answered
Feb 18, 2020
Machine Learning
onehotencoder
and
standardscaler
+
–
0
0 votes
7.8k
7.8k views
How to calculate the probability and accuracy of a Logistic Regression classifier?
How to solve this problem?https://i.imgur.com/8urywpf.jpgQ1) Complete the ? sectionsQ2) Accuracy of system if threshold = 0.5?Q3) Accuracy of system if threshold = 0.95?
answered
Feb 18, 2020
Machine Learning
machine-learning
ml-exercise
logistic-regression
probability
ml-midterm
ele888-midterm
+
–
0
0 votes
1.3k
1.3k views
Can I use a single Pipeline for multiple estimators in scikit-learn?
Is there any proper way to combine multiple classifiers and their parameter grids in one Pipeline?
answered
Feb 18, 2020
Machine Learning
machine-learning
pipeline
sklearn
scikit-learn
+
–
0
0 votes
840
840 views
How to install Matplotlib
Hi Everyone,How to install Matplotlib in Python IDLE. 3.7.4I'm a student in Data Science and I want to do The Birthday Paradox and it requires me to import matplotlib.pyp...
answered
Feb 8, 2020
General
cloud-computing
+
–
0
0 votes
2.8k
2.8k views
How to see Hive terminal history of commands?
Is it possible to take a look at list of all commands written for Apache Hive?
answered
Feb 4, 2020
Cloud Computing
cloud-computing
gpc
hive
dataproc
+
–
0
0 votes
14.3k
14.3k views
How to calculate Accuracy, Precision, Recall or F1?
In the following example, calculate Accuracy, Precision, Recall or F1?https://i.imgur.com/OezFpqC.png
answered
Jan 27, 2020
Machine Learning
machine-learning
accuracy
precision
recall
ml-exercise
ml-midterm
ele888-final
ai-final
+
–
0
0 votes
660
660 views
After creating a Cloud Dataproc cluster on GCP can I adjust it?
I am wondering when I create a cluster using Dataproc on GCP, can I adjust it afterwards?
answered
Jan 23, 2020
Cloud Computing
gpc
cloud-computing
dataproc
+
–
0
0 votes
12.2k
12.2k views
score() vs accuracy_score() in sklearn
Hi,Since I still have confuse to use the score() and accuracy_score(), so I want to confirm my test assumption.Q1: score(), we use the split data to test the accuracy by...
answered
Jan 21, 2020
Machine Learning
machine-learning
sklearn
scikit-learn
+
–
0
0 votes
725
725 views
How to calculate $g[h(3)]$ if $g(x)= 2x+3$ and $h(x) =4x+5$ ?
Need help solving this question
answered
Dec 5, 2019
Discrete Mathematics
discrete-math
+
–
0
0 votes
1.1k
1.1k views
How do i find the inverse of the function?
If $h(x) =4x+5$, how do i find h inverse of x?
answered
Dec 5, 2019
Discrete Mathematics
discrete-math
+
–
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