Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Decision Tree Learning
(a) Describe the main steps in the basic decision tree learning algorithm. The table below contains a sample S of ten examples. Each example is described using two Boolean attributes A and B. Each is labelled (classi ed) by the target Boolean function.
(b) What is the entropy of thse examples with respect to the given classi cation ?
[Note: you must show how you got your answer using the standard formula.] This table gives approximate values of entropy for frequencies of positive examples in a two-class sample.
(c) What is the information gain of attribute A on sample S above ?
(d) What is the information gain of attribute B on sample S above ?
(e) Which would be chosen as the \best" attribute by a decision tree learner using the information gain splitting criterion ? Why ?
(f) Describe a method for over tting-avoidance in decision tree learning.
An independent set in a graph G is a set of vertices I in G such that no two vertices in I are adjacent (neighbors). The maximum independent set problem is, given a graph G, to compute an independent set of maximum size (maximum number of vertices) i..
For what values of d is the tree T of the previous exercise an order -d B-tree? HINT: The definition of an order- d deals with the minimum and maximum number of children an internal node can have.
The system development team at Wilson Corporation is working on developing a new consumer order entry system. In the process on designing the new system,
Planning an investment strategy your knowledge of algorithms helps you obtain an exciting job with the acme computer company, along with a $10,000 signing bonus. you decide to invest this money with the goal of maximizing your return at the end of..
Evaluate the average complexity of an enqueue operation. Determine the average complexity of the dequeue (remove) operation.
Let t be the degree of a BTree. Suppose the size of each object, including the key, stored in the tree is 90 bytes. Also, suppose the size of a BTreeNode pointer is 4 bytes.
Describe a FAIRCOIN algorithm that returns either 0 or 1 with equal probability, using ONEINTHREE as your only source of randomness.
the class LinkedBag did not have the data member itemCount. Revise the method getCurrentSize so that it counts the number of nodes in the linked chain
Explain how to modify Knuth-Morris-Pratt algorithm to support patterns with these wild cards, and analyze modified algorithm. Your algorithm must find first substring in text which matches the pattern.
Construct a simple threat model that describes the risk this represents: attacker(s), attack vector, vulnerability, assets, and likelihood of occurrence, likely impact, and plausible mitigations.
Think about the given greedy strategy for finding a shortest path from vertex start to vertex goal in a connected graph.
Recognize the level within a database system user and designer of the DBMS software at which each of the following concerns or activities happen,
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd