3. Consider the decision tree shown in Figure 2a, and the corresponding training and test sets shown in the table below. The decision tree in Figure 2b is a pruned version of the original decision tree. 2 2 B Figure 2a Figure 2b Training set Test set A. B # of (+) instances # of (-) instances # of (+) instances # of (-) instances 5 3 4 1 1 3 4 3 1 22 7 1. 7 32 3 15 2 5 2 1 6 2 5 c. Based on the pessimistic estimate of the error rate, determine whether the original tree should be pruned and briefly explain. d. What is the issue that you can identify in the decision tree of Figure 2a but not in the tree of Figure 2b? Explain how the pessimistic estimate of the classification error tries to capture that.

Q: 3. Consider the decision tree shown in Figure 2a, and the corresponding training and test sets shown…

A: Given : Here, the set of training and testing points are given. Along with this, two decision trees…

Q: 3. Consider the decision tree shown in Figure 2a, and the corresponding training and test sets shown…

A: The Answer is in below Steps

Q: Data Mining Briefly outline the major steps of decision tree classification. Given a decision tree,…

A: A decision tree is a flowchart-like construction in which each inner hub addresses a "test" on a…

Q: In class we discussed an example of decision trees that involved buying a car with tests that could…

A: First, we need to calculate some probabilities using Bayes rule as we can’t use the given…

Q: Draw the full decision tree for the parity function of four Boolean attributes provided below A, B,…

A: Answer is given below .

Q: 2g) Decision Tree Classification Define a function train_DT() which takes as input x and Y and…

A: Since you have asked multiple questions, according to the company's policy we will solve the first…

Q: 1. Draw Control Flow Graph of the given code 3.1 and code 3.2. respectively. 2. Identify no. of…

A: NOTE: Based on our rules, when multiple questions are posted, we should answer only the first…

Q: Given a decision tree, you have the option of (A) converting the decision tree to rules and then…

A: Question :- Given a decision tree, you have the option of (A) converting the decision tree to rules…

Q: Given a decision tree, you have the option of (a) converting the decision tree to rules ar then…

A: Decision Trees are one of the most popularclassification algorithms used in data mining and machine…

Q: Given a decision tree, you have the option of (A) converting the decision tree to rules and then…

A: Answer is given below .

Q: Given a decision tree, you have the option of (A) converting the decision tree to rules and then…

A: Answer is given below .

Q: 8.3. Suggest a lazy version of the eager decision tree learning algorithm ID3 (see Chap- ter 3).…

A: Answer : Store instances during training phase and start building decision tree using ID3 at…

Q: I # YOUR CODE HERE def train_DT(X,Y): clf = DecisionTreeclassifier(random_state = 0, max_depth = 2)…

A: subject_clf = train_DT(subject_train_X,category_train_Y)

Q: 1. Draw Control Flow Graph of the given code respectively. 2. Identify no. of predicate nodes and…

A: CONTROL FLOW DIAGRAM:

Q: Using the grammars, draw trees for the expressions given, then answer the questions. There are tools…

A: As you have posted multiple questions, we will solve the first question for you.  In the given…

Q: Form a decision tree based on this data set.

A: Strategy: top downRecursive divide ­and­ conquer mannerFirst: select attribute for root nodeCreate…

Q: How does a Decision Tree handle continuous (numerical) features? Explain this fact with the help of…

A: How does a Decision Tree handle continuous (numerical) features? Explain this fact with the help of…

Q: QUESTION 10 Given the following AVL tree: a) What is the node balance of the node with the value 45:…

A: As per policy only three subparts of one question can be answered once

Q: 5. Draw the total language tree for the following CFG until we can be sure we have found all words…

A: Answer as given below:

Q: Draw a decision tree (Full or simplified) to represent the Claremont School catalog.   The…

A: Simplified decision tree A decision tree is basically the graphical representation of the decision…

Q: Create a Decision tree classifier in sci-kit learn using the Data given below, features =…

A: Since the programming language is not mentioned, we'll do it in python.   The programming…

Q: You have a family tree diagram like the following, very small, sample tree and file. It is stored as…

A: It is defined as a special data structure used for data storage purposes. A binary tree has a…

Q: Artificial intelligence (Question - 4) ======================= Perform a minimax evaluation for…

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Q: Consider the following CFG with starting variable S and Σ = {1, 2, 3, 4, 5, 6, 7, 8, 9, 0}: S → M U…

A: In this question, we are given a CFG and we have to provide derivation tree for the given string.…

Q: Consider a University where different designation hierarchies can exits. The top level hierarchy…

A: PART A: 1) 3)   Yes, the above tree is binary.   The depth of the tree is 2. it can be calculated…

Q: A network with named nodes and labeled arcs that can be used to represent certain natural language…

A: Answer D) Transition Network

Q: 6.10 a. Draw dependency graphs corresponding to each grammar rule of Example 6.14 (page 283), and…

A:

Q: 6.10 a. Draw dependency graphs corresponding to each grammar rule of Example 6.14 (page 283), and…

A: 6.10 a) The dependency graphs of the grammar rules are given by ,     The dependency graphs of the…

Q: Given a decision tree, you have the option of (A) converting the decision tree to rules and hen…

A: While pruning the decision tree and then converting the pruned tree in (B) to rules we will remove…

Q: Prolog: We are writing bst_member/2, a relation between an integer and a binary search tree…

A: Question 1 The correct answer is option (B) No, we have not specified what to do when the integer is…

Q: Q-1. Consider the given grammars and remove left recursion either direct or indirect. a) A - ABd |…

A: Step 1 The answer is given in the below step

Q: Question 21 The following describes a decision tree, EXCEPT: (A Graphical (в) Certain

A: There are 4 basic elements in decision theory: acts, events, outcomes, and payoffs.  Option B…

Q: 4. a) For the following SDD give annotated parse tree for the expression: i) (8+7 * (6 + 5) + 4) * 3…

A: SDD give annotated parse tree for the expression: (8+7*(6+5)+4)*3n

Q: Induction Decision Trees are prone to Overfitting. Describe any three ways to avoid or resolve this…

A: There are several approaches to avoiding overfitting in building decision trees:1. Pre-pruning that…

Q: Generalize the missing attribute problem to the case of several missing features, and to several…

A: We generalize the problem of a single missing attribute in a single training point to several…

Q: Question No. 3: In the restaurant business, it is important that hold customer, even there is no any…

A: this is a simple logical question in which we have to convert the flowchart to if- else logic

Q: What trade offs do buffer trees pose as compared to LSM trees?

A: Trade-offs of a buffer tree: The buffer trees can be used with any tree-structured index in order…

Q: What trade offs do buffer trees pose as compared to LSM trees?

A: Trade-offs of a buffer tree: The buffer trees are used with any tree-structured index to lower the…

Q: Built a Decision tree for Cell Phone Classification.  Your tress should have at least 2 Levels.

A: Assumptions on attributes and classes : Class Name : Label Values:  Smartphones, Mobile phones…

Q: Explain what are Conflicts in SR Parsing? Support your answer with the help of properly drawn…

A: Types of conflicts There are two kinds of conflicts that can occur in an SLR(1) parsing table. A…

Q: 1. Problem. Solve the problem Below using MLQ and MLFQ Algorithms JID AT BT PN J1 18 1 J2 12 J3 9.…

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Q: Consider the following sequence of a generic program written in an unknown programming language…

A: BNF- BNF stand for Backus Naur Form: BNF is used to provide the notation to the programming language…

Q: write the argument using propositional wffs (use the statement letters shown). Then, using…

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Q: These will become additional derivation rules for propositional logic, P ^ (Q ∨ R) → (P ^ Q) ∨ (P ^…

A:

Q: These will become additional derivation rules for propositional logic, (Q′ → P′) → (P → Q)

A:

Q: use propositional logic to prove the arguments valid; (A ^ B) ^ (B →  A′) →  (C ^ B′)

A:

Q: For the following grammar and the right sentential form T * (E + (E + T) * id) draw a parse tree and…

A: Given grammar: E -> E + T | TT -> T * F | FF -> (E) | id Expression in right sentential…

Q: Consider the binary tree in Figure 3. Determine the output of the pseudocode puzzle that takes the…

A: #include <bits/stdc++.h> using namespace std; struct Node { int data; struct…

Q: EXPLAIN the Tree data structure with appropriate diagram.

A: We are going to understand Tree data structure and we also understand it with the help of example.