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- Boundary of DT/NN-HOW many layers
- SVM- visual data(which gives 0 error)
- MLE- solve parameters
- Naive Bayees
- LOG.REG- Equation solving
- find decision boundary
- Boundary of logistic classifier
- MODEL Evaluation- def acc,prec,recall
- k- fold cross validation
- (which gives lower error)
- ROC Curve(TPR Vs FPR)-Area And its dependency
- KNN with k-fold , what is the decision boundary of 3,4 etc
- Ensemble- Bias- Var tradeoff
- effect of increasing number of layers in NN
- effect of adding more variables to a model
- effect of increasing no.of trees in random forest
- effect of increasing K in KNN
- making DT instead of stump as base classifier
- bootstrapping, boosting(adaboost)
- no.of iterations of adaboost needed
- epselon, gamma new weights given no.of misclassified points
- K- means
- assignment, update, centres
- strength and weakness
- heirarchical clustering
- Single link, max link......
- EM soft clustering
- PCA- what does it do
- Bayesnet
- no.of parameters needed- each have 4 choices
- compute joint probability- factoring
- Dependency Separation
- HMM
- Forward algorithm
- Viterbi- healthy, fever
- RNN
- Q,V function- dependency on policies
- Questions
- no.of parameters- sequential, bayes net
- adaboost- error calc, weight update
- 1st iter-normalized weights
- 2nd- ist and 2nd iter
- adaboost practice questions
- anjum chida slides- heart shape problem
- probability-office, light, computer on, login- online office light probability-0.4 near
- knn,ann,perceptron,naive bayees-acendining order of speed model creation
- No.of parameters-match the following-all independent(x1-xn), bayees network description, all dependent, sequential order
- sigmoid, derivative graphs -100 to 100, -1 to 1
- viterbi- health fever
- diagnostic queries- given cough----temparature HHF
- forward- 2 states(o1,o2 observebles probability)
- 5 options- which cases reduces variance-knn-ann-decision tree
- Given a constant function-variance high or low
- another question similar to variance and bias
- variance- underfit/overfit
- decision tree - depth dependency
- Ann- no.of layers
- Z=x+y variance of Z x (0-1),y(0-2) uniform 5/2,1/2,/4,/3
- logistic regression-- x<6 y==1/0 quiz question same
- MLE-P(X) theta
- MLE- sigma xi/5n in denominator
- dataset-which classifier gives zero training error(2 q)
- k-means clusters- sum of distances(cluster point to centroid)
- centroids after each iteration
- Fails in which case.
- k means- k-1, k-3 error
- k- means fail cases
- outlier,spherical, centroid calculations
- Bayes net-joint probability(p-----)
- deseparation(not conditionally independent select)
- d-separation bayes net- conditional independence from the diagram earth quake,call - middle and last
- graph points 7-svm with 7 fold----> training error
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