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Recent questions without an upvoted answer
1
1 vote
1
1 answer
458
458 views
Pre trainned word Embeddings and Preproceess
How should i preprocess my data if i am gonna use a pretrainned word embedding like glove or word2vec?Should I use stemming or stopword removal techniques?
ntonis
170
points
1
4
7
asked
Apr 10, 2020
Machine Learning
deep-learning
natural-language-process
+
–
1
1 vote
0
0 answers
296
296 views
guidance on sequencing data science courses below
Hellomy name is lutaaya mudathiru.I am planning to start data science online professional courses at Harvard University, but i don't know which course i should begin wit...
mudathiru lutaaya
130
points
1
3
asked
Mar 20, 2020
Data Science
data-science
machine-learning
+
–
1
1 vote
1
1 answer
1.0k
1.0k views
How to directly download a file into HDFS?
Is there any way to download a file directly into HDFS?
Ghassem
610
points
3
5
9
asked
Feb 27, 2020
Cloud Computing
hadoop
hdfs
curl
big-data
cloud-computing
+
–
1
1 vote
1
1 answer
3.8k
3.8k views
What are the most common data types in data science?
What are the main data types?
tofighi
116k
points
73
79
101
asked
Feb 19, 2020
General
data-science
data
+
–
1
1 vote
1
answers
1 answer
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 ...
tofighi
116k
points
73
79
101
asked
Feb 18, 2020
Machine Learning
machine-learning
linear-regression
residual
mae
mse
rmse
mape
mpe
ml-exercise
ml-midterm
+
–
0
0 votes
1
1 answer
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?
tofighi
116k
points
73
79
101
asked
Feb 18, 2020
Machine Learning
machine-learning
pipeline
sklearn
scikit-learn
+
–
0
0 votes
1
1 answer
800
800 views
why after applied the OneHotEncoder, it will create one more column whatis that column for?
kaADSS
230
points
2
2
6
asked
Feb 12, 2020
Machine Learning
onehotencoder
and
standardscaler
+
–
0
0 votes
1
1 answer
603
603 views
can someone send me an online link to discrete mathematics 8th edition textbook?
FunkyMonkey
120
points
1
1
4
asked
Feb 12, 2020
Discrete Mathematics
discrete-math
+
–
0
0 votes
1
1 answer
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 ...
rakesh
120
points
1
1
3
asked
Feb 10, 2020
Machine Learning
tree
search
database
+
–
0
0 votes
0
0 answers
1.8k
1.8k views
How to add delimiter to an existing table in HIVE so as to get proper table format data ?
When I am using the select statement to display my data in hive. It displays my data in scattered format. I want to add a delimiter so that when data is been displayed it...
Harshini
140
points
1
1
7
asked
Feb 7, 2020
Cloud Computing
cloud-computing
gcp
hive
+
–
1
1 vote
1
answers
1 answer
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?
tofighi
116k
points
73
79
101
asked
Feb 7, 2020
Machine Learning
machine-learning
state-of-the-art
codes
+
–
1
1 vote
1
1 answer
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?
tofighi
116k
points
73
79
101
asked
Feb 4, 2020
Cloud Computing
cloud-computing
gpc
hive
dataproc
+
–
3
3 votes
1
answers
1 answer
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?
tofighi
116k
points
73
79
101
asked
Feb 3, 2020
Machine Learning
machine-learning
ml-exercise
logistic-regression
probability
ml-midterm
ele888-midterm
+
–
2
2 votes
1
answers
1 answer
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
tofighi
116k
points
73
79
101
asked
Jan 27, 2020
Machine Learning
machine-learning
accuracy
precision
recall
ml-exercise
ml-midterm
ele888-final
ai-final
+
–
0
0 votes
1
1 answer
1.3k
1.3k views
How to calculate the entropy of stimulus and response in the Stimulus Response Matrix?
Could you please calculate Hr and Hs in the following figure?https://i.imgur.com/4LBJ70O.png
tofighi
116k
points
73
79
101
asked
Jan 27, 2020
Human Computer Interaction
entropy
hci
stimulus
+
–
1
1 vote
0
0 answers
367
367 views
Understanding symbolic language of problem, quantificational logic
Hi, i am having trouble interpreting the information contained in the relation R, and how it should be applied to the Ps in this problem: Consider the formula ∃x∃y∃z(P(x,...
sleepdeprived
130
points
1
3
asked
Jan 26, 2020
Discrete Mathematics
discrete-math
+
–
0
0 votes
1
1 answer
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?
tofighi
116k
points
73
79
101
asked
Jan 23, 2020
Cloud Computing
gpc
cloud-computing
dataproc
+
–
1
1 vote
2
answers
2 answers
725
725 views
How to calculate $g[h(3)]$ if $g(x)= 2x+3$ and $h(x) =4x+5$ ?
Need help solving this question
Ronit N.
530
points
1
1
4
asked
Dec 5, 2019
Discrete Mathematics
discrete-math
+
–
0
0 votes
1
1 answer
514
514 views
Can anyone please solve Q7 pg 329 in Induction?
Burhan
160
points
1
1
3
asked
Dec 5, 2019
Discrete Mathematics
data-science
+
–
1
1 vote
0
0 answers
410
410 views
Individual and group relative strength in a fixed pool of players: How to approach the problem?
I apologize in advance if my question sounds too basic to be worthy of anyone's time, but statistics are not part of my curriculum.I am developing a proof of concept of a...
MrNycticorax
130
points
1
3
asked
Oct 29, 2019
Statistics
data-science
statistics
+
–
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