From 197da1ebd22b197d46f572aa665e0d485c0df68d Mon Sep 17 00:00:00 2001 From: "Dragan, Dan" Date: Mon, 23 Sep 2024 17:13:50 -0500 Subject: [PATCH] lesson 1 assignment --- 1-Introduction/1-intro-to-ML/DanNotes.txt | 38 +++++++++++++++++++ .../Relationship-AI-DataScience.drawio | 25 ++++++++++++ 2 files changed, 63 insertions(+) create mode 100644 1-Introduction/1-intro-to-ML/DanNotes.txt create mode 100644 1-Introduction/1-intro-to-ML/Relationship-AI-DataScience.drawio diff --git a/1-Introduction/1-intro-to-ML/DanNotes.txt b/1-Introduction/1-intro-to-ML/DanNotes.txt new file mode 100644 index 000000000..432396371 --- /dev/null +++ b/1-Introduction/1-intro-to-ML/DanNotes.txt @@ -0,0 +1,38 @@ +How are things learned? + Memorization + Accumulation of facts + Limited by: + Time to observe facts + Memory to observe facts + ---------- + This is "declarative knowledge" - based on statements of truth + ---------- + Generalization + Deduce new facts from old facts + Limited by: + Accuracy of the dedeuction process + Essentially a predictive activity + Assumes that the past predicts the future. + ---------- + This is "imperative knowledge" + ---------- + + +Basic paradigm: + - provide a set of - seen, observed - training data + - decide on a characteristic of that training data as representative for the issue + - infer something (a rule?) about the process that has generated that data + - use inference to make predictions about previously unseen data + - confirm inference using a set of test data + +A choice might have to be made between "Will I have false negatives or false positives allowed by my rules" and it would depend on what side is the risk higher. + +Issues of concern when learning models: + Leaned models will depend on : + - distance metric between examples + - choice of features vectors + - constraints of complexity model + - specified or unknown number of clusters + - complexity of separating surface + - need to acoid overfitting problems like "each example is its own cluster" + \ No newline at end of file diff --git a/1-Introduction/1-intro-to-ML/Relationship-AI-DataScience.drawio b/1-Introduction/1-intro-to-ML/Relationship-AI-DataScience.drawio new file mode 100644 index 000000000..a6ad09f31 --- /dev/null +++ b/1-Introduction/1-intro-to-ML/Relationship-AI-DataScience.drawio @@ -0,0 +1,25 @@ + + + + + + + + + + + + + + + + + + + + + + + + +