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Recent questions tagged data-science

1 1 vote
1 1 answer
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How to analyse imbalanced categorical colum in dataset
Hello,I have a dataset with a categorical column that contains three categories. One of the categories represents 98% of the data, while the remaining 2% are distributed ...
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0 0 answers
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Can you verify the validity of this chart comparing the review scores for Marvel Phase 4?
I have some skepticism about the validity of the charts below comparing the critic and audience reviews for Phase 4 of the MCU to the previous 3 phases. There are over 18...
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Creating tables from unstructured texts about stock market
I am trying to extract information such as profits, revenues and others along with their corresponding dates and quarters from an unstructured text about stock market and...
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How do I compare the count of a value in each year while having a different sanple size each year.
How do I accurately compare between the number of something a survey measure from my employees each year with a varying umber of survey engagement and employee size?If I ...
0 0 votes
0 0 answers
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Is it possible to make a forecast of a future value of Air Temperature using Fast Fourier Transform?
Is it possible to make a forecast of a future value of Air Temperature using Fast Fourier Transform, if yes, what should be the process or how you'll be able to do it. Th...
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forecast log transformed fitted values for 2 years using ARMA model
Input is a stock price in exponential transformation. We are asked to forecast using ARMA results for 2 years.
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0 0 answers
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Bankruptcy prediction and credit card
Hello everyone newbie data scientist here.I'm working on a project to predict companies (probability of default) bankruptcy probability and to assign them a credit rating...
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0 0 answers
991
991 views
I cannot get this code to work. please help.
from keras.models import Sequential from keras.layers import Dense from keras.layers import LSTM from sklearn.model_selection import train_test_splitmodel = Sequential() ...
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0 0 answers
992
992 views
Battery data projects
Where can I find projects related to battery data?
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0 0 answers
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How can you build dynamic pricing model with data only from rigid pricing?
I want to build a dynamic pricing model which means if product is too expansive for a client and there is a risk that we might loose a client we lower the price for them ...
1 1 vote
1 1 answer
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When dealing with categorical values, should the 'year' column be encoded using OHE or OrdinalEncoder?
It's a car prices dataset, and so I'm assuming that the more recent the more value a car should have. The values in the 'year' column simply consist of years from 1995 to...
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549
549 views
How do I know which encoder to use to convert from categorical variables to numerical?
So say I have a column with categorical data like different styles of temperature: 'Lukewarm', 'Hot', 'Scalding', 'Cold', 'Frostbite',... etc.I know that we can use pd.ge...
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464 views
should i start as a data analyst then data science?
should I start as a data analyst then data science?I am a second-year Bachelor's in Computer Science and wanted to pursue to be a Data Scientist.However, when I am trying...
1 1 vote
1 1 answer
649
649 views
How to calculate average with deviating sensors?
In case of 3 sensors reporting loads of values individually.. one sensor might be off. The average of the 2 trustworthy sensors is to be reported.. the third in need for ...
3 3 votes
0 0 answers
817
817 views
design a computer-based system that will encourage autistic children to communicate and express themselves better.
a) A company has been asked to design a computer-based system that will encourage autistic children to communicate and express themselves better.b) What type of interacti...
1 1 vote
0 0 answers
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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...
1 1 vote
1 1 answer
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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?
1 1 vote
1 1 answer
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What are the most common data types in data science?
What are the main data types?
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