Questions tagged [mean-shift]
5 questions
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How to use Cosine Distance matrix for Clustering algorithms like mean-shift, DBSCAN, and optics?
I am trying to compare different clustering algorithms for my text data. I first calculated the tf-idf matrix and used it for the cosine distance matrix (cosine similarity). Then I used this distance matrix for K-means and Hierarchical clustering…
Piyush Ghasiya
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sklearn & Meanshift for NLP only returns 1 cluster
I am using sklearn.clustering to work with some text data and the MeanShift algorithm. I have:
Done all standard NLP data prep like lemmatizing, removing stop words, etc.
Used the TfidfVectorizer to create my word vectors on 80k-plus records
The…
I_Play_With_Data
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Find the time and magnitude of abrupt change in time series
I have several time series where there sometimes are abrupt continuous shifts in the data (see example below).
Specifically these are measurements so the reference level (RL) must have changed. E.g., in the plot attached the RL could have been…
asher
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Machine learning features - detect mean shift using expected values
I have an LGBM model that trains on machine learning features and predicts some numerical outcome with new data coming periodically. I would like to make sure that the new input data is "similar" with the data that I have trained my model on, in…
Basel
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How to identify instances in clusters generated by the MeanShift algorithm?
I'm trying to create a machine learning project for the prediction of Pre-Eclampsia (hypertension condition in pregnant women from the 20th week of pregnancy).
I have access to some clinical data of pregnant women with the potential to predict this…
