
John Purcell
375 posts

John Purcell
@CaveOfProgram
Founder of https://t.co/JPpCPhUksc
Trieste Katılım Aralık 2012
6 Takip Edilen1.1K Takipçiler

Neural Network: Squares
Fairly simple of a neural network in Python, just squaring numbers.
caveofpython.com/machine-learni…
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Classifying Irises with a Neural Network.
There's a lot of new ideas in one post if you've not studied this previously, but in future posts I mean to break it all down.
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Using PCA and Logistic Regression to Predict Breast Cancer Diagnosis.
Unfortunately not useful unless you have whatever machine measures the shapes of cell nuclei though, plus a biopsy.
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@CaveOfProgram Hey John, I have my eye on the Python course for some happy summer coding. Thanks for all your tutorials!
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Principal component analysis with agglomerative clustering for the Iris Flower Dataset.
caveofpython.com/machine-learni…

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Principal Component Analysis: an intuitive explanation. Hopefully.
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Adding to Clusters: Nearest Neighbours
A post on what to do if you've found some clusters in your data but then want to figure out which of these clusters new data belongs to.
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Scikit-Learn Agglomerative Clustering
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Hierarchal Clustering: Dendrograms caveofpython.com/machine-learni…
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Clustering Irises with DBSCAN caveofpython.com/machine-learni…
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Nearest Neighbours: Finding Epsilon for DBSCAN caveofpython.com/machine-learni…
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@Aceeeee64815692 Wayback machine has it!
web.archive.org/web/2021092704…
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Python machine learning: today I've got a tutorial on using confusion matrices to figure out which values have been classified correctly or incorrectly by your model.
caveofpython.com/machine-learni…
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Today I've got an article on the "elbow method" for finding the optimum number of clusters in data, particularly with K-means clustering.
Quite pleased with my supermarket analogy here!
caveofpython.com/machine-learni…
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@Aceeeee64815692 Ah sorry, that link might have permanently gone AWOL. My blog got deleted because I forgot to pay the hosting costs.
There are tons of free Java tests online though if you search. Mine wasn't especially in-depth.
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@CaveOfProgram hello there, good day, I'm one of your students in Cave of Programming. For basic java where I can test my programming knowledge in java, the link that was provided wasn't working
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Python machine learning tutorial: today I've got an article on KMeans clustering.
An interesting thing about clustering is that it's widely misunderstood by non-statisticians. People commonly argue that if clusters aren't perfect, they don't exist.
caveofpython.com/machine-learni…
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Thanks to this thread I finally got my nuclear bombs working properly.
Bojan Tunguz@tunguz
After seeing #Oppenheimer a lot of people are trying to make their own nuclear bomb. However, 99% of them are doing it wrong. Here is what you need to know in order to do it correctly. A thread👇🧵🧶 1/235
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