Question 16. What area unit Feature Vectors?
Answer: N-dimensional vector of numerical options that represent some object
Term occurrences frequencies, pixels of a picture etc.
Feature area: vector space related to these vectors
Question 17. justify The Steps In creating a call Tree.?
Answer: Take the complete information set as input
Look for a split that maximizes the separation of the categories. A split is
any take a look at that divides the information in 2 sets
Apply the split to the computer file (divide step)
Re-apply steps one to a pair of to the divided information
Stop once you meet some stopping criteria
This step is termed pruning. stop working the tree once you went too way
doing splits.
Question 18. what's Root Cause Analysis?
Answer: Root cause analysis was at the start developed to investigate industrial accidents, but is currently wide utilized in different areas. it's essentially a method of drawback solving used for uninflected the foundation causes of faults or issues. an element is called a root cause if its deduction from the problem-fault-sequence averts the final undesirable event from reoccurring.
Question 19. justify Cross-validation.?
Answer: It is a model validation technique for evaluating however the outcomes of a statistical associate degreealysis can generalize to an freelance information set. chiefly utilized in backgrounds wherever the target is forecast and one desires to estimate however accurately a model can accomplish in observe.
The goal of cross-validation is to term an information set to check the model within the training section (i.e. validation information set) so as to limit issues like over fitting, and acquire associate degree insight on however the model can generalize to associate degree freelance data set.
Question 20. what's cooperative Filtering?
Answer: The process of filtering utilized by most of the recommender systems to seek out patterns or info by collaborating views, various information sources and several agents.
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