Questions tagged [python]
Use for data science questions related to the programming language Python. Not intended for general coding questions (which should be asked on Stack Overflow).
6,622 questions
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Multi-stage pipeline vs. single model for audio classification
I am a Computer Science student working on a project to analyze dog barks and classify the underlying emotion.
I am considering two different architectural approaches for the audio processing pipeline:...
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Machine Learning Roadmap for Beginners: A Step-by-Step Guide to Getting Started
I want to learn Machine Learning from scratch, but I don't know where to start. I'm a complete beginner and need a step-by-step learning roadmap.
Could you please guide me on:
What should I learn ...
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Machine learning approach for real-time job market forecasting
I'm planning to build a real-time job market intelligence web app for the data science and ai job market.
the application will continuously collect job postings, extract information such as skills, ...
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How to sample from a parquet file with polars?
I am trying to read a huge parquet file with polars.
My issue is that it doesn't really fit in memory. So, I want to get a sample from it.
Thus, I am trying to sample 100 rows to get an initial feel ...
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How to interpret an unstable learning curve on a model tuned with Hyberband Tuning? Incorrect code or weird model?
I have used Hyperband automatic tuning for an ANN model to predict price. After running the model with the automatic tuning, I am obtaining an R2 score of 1.00 that suggest overfitting, however, I am ...
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The difference between covariance matrix at Python and R
I've noticed differences when calculating covariance matrices in Python (e.g., numpy.cov()) versus R (e.g. base::cov()). What ...
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1 answer
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Axis error when creating csr_matrix. from merge data
I get an error when creating a csr_matrix data. from two merged pd.read_csv() data.
the code is:
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- reputation score 55
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What would be the best way to analyze the relationship between a chemical reaction network graph and a tuple using a GNN?
So, for an ongoing research project, I've been analyzing the topology of the chemical reaction network (CRN) of a planet's atmosphere. What I'd like to do is see if anything about the CRN can be ...
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definition and example of coords concept
What is coords at csr_matrix?. i confused when i print() my csr_matrix data. something that appear on my terminal is these:
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CLV Estimation: BTYD vs. Survival Analysis
I'm working on a project using the Elo Merchant Category Recommendation dataset (Kaggle). My goal is to perform Customer Segmentation base on their transactions by combining RFM metrics with Customer ...
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Neural network (NN) model loss is increasing with epochs
I am trying to make a Convolutional Neural Network (CNN) using only numpy and other basic libraries. As a first step though, I needed to test the regular NN layers first, so I currently have a regular ...
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Handling Profanity Censorship in BERTopic
I'm currently working in a dataset with censorship on profanity. Basically, fuck would be 4 heart emojis. Considering I'm trying to run a topic modelling w/ BERTopic, what kinda of preprocessing would ...
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What causes a model to have such an output?
I'm training CSDI model and the output is very suspicious?
Low diffusion steps? too high learning rate? nothing seems to change this behavior? some normalization issue that I'm not accounting for, I'...
- reputation score 151
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386 views
How to efficiently merge multiple CSV and JSON files into a single DataFrame using Pandas in Python
I am working with multiple data files in a folder where some files are in CSV format and others are in JSON format. I want to combine all of them into a single DataFrame for further analysis.
Here is ...
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Trying to understand if I'm implementing GluonTS sliding window splitting and validation set correctly
The documentation is a little bit confusing so I thought I would ask here to make sure, I'm using:
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- reputation score 151
