8,592 questions
Advice
0
votes
4
replies
155
views
What can I use stack overflow for?
I am wrapping up my B.S. in cognitive science late this year. My professor had us create a stack overflow account in our data analysis and optimization course. I unfortunately never looked into it ...
Advice
1
vote
1
replies
100
views
Data science and machine learning
Career change data science 40
Hello! I need according your experience
I'm 40, career changer, based in Colombia. Which data science bootcamp is worth it? Any experience with 4Geeks or similar?
Are ...
Score of 3
1 answer
144 views
Problem in tensor shape difference between training and and testing data when running a CNN model
I have a problem when running the saved model of a CNN. When I train the model and the input tensor size of the first linear layer is set to the shape for the training data after it is flattened and ...
Advice
0
votes
2
replies
145
views
How should a beginner approach learning NumPy before using it with real datasets
I’m a beginner learning NumPy and Data Science. I understand basic operations such as array creation, indexing, slicing, and simple computations.
However, when I try to follow tutorials that use NumPy ...
Advice
0
votes
1
replies
59
views
Adjusting Titles to reflect a change in numerical data
Ok so there's no easy way to title this to get the information I really want to get at. But I feel like the longer winded explanation is fairly simple.
So I'm in a programming for data science class (...
Score of 2
1 answer
93 views
Sklearn Pipelines, adding features and column transformers
I'm just trying out/experimenting with sklearn. I'm using the California housing dataset, and I'm trying to make a pipeline to create some additional features, then take the logarithm of some features,...
Advice
0
votes
2
replies
70
views
NeMo cashe-aware streaming multilingual ASR training
I started training nemo's hybrid rnnt ctc cashe aware streaming large multilingual model with code-switching. i wanted to ask if total 1300 hours of dataset will be enough? and somehow I noticed that ...
Best practices
0
votes
0
replies
83
views
Handling of correlation via PCA for neural networks
I am working to model financial data via neural networks and I am unsure of what the best practices are for PCA de-correlation. I will focus on two momentum indicators for this example, RSI and CCI. ...
Tooling
0
votes
0
replies
45
views
GPU-accelerated t-SNE
Up to this point, I have only used scikit-learn’s t-SNE algorithm. This approach takes a long time to produce good results for high-dimensional datasets with many samples. Should I consider using a ...
Advice
1
vote
3
replies
74
views
Need advice on how to handle data and find groupings using ML/AI/DS
I have a project and I'm new with Data Science/ML/AI. Basically I have data set with list of issues and each issue there is a notes section where engineers talk to support and tell how do they solve ...
Score of 1
2 answers
182 views
How do I randomize what rows I import from an SAS file?
The files are over 100gb and I want 1000 observations but not the first 1000, how can I make sure it's randomized before/while importing so that not all of it has to be loaded in?
data <- lapply(...
Advice
0
votes
1
replies
55
views
Step wise pattern prediction of prices
I have sample dataset where prices are stable few days/week/months and then falls/raise and stays in that price again for few days/weeks/months.
Basically it looks like step down and up when you ...
Advice
0
votes
0
replies
47
views
Data leakage concerns when using logistic regression probabilities for sentiment scoring
I am currently analyzing sentiment in Google Maps reviews about public parks in order to create a score for each park. I am using Word2Vec and logistic regression. The logistic regression model is not ...
Advice
1
vote
1
replies
191
views
General Curiosity about ai
Currently i am exploring about agentic ai and found some cool use-cases of it in real world and amazed to see how it's been continously growing over the market and automating simple process together ...
Advice
0
votes
1
replies
62
views
what are validation checks that are made inorder to push a data to reject folder in medallion architecture?
In my dataset, I noticed that the actual data type of a column differs from the expected data type.In this situation, should the data be type-cast during processing, or should such records be moved to ...