COMP 250 INTRODUCTION TO COMPUTER SCIENCE Week 5-3 : Doubly Linked Lists Giulia Alberini, Fall 2020 WHAT ARE WE GOING TO DO IN THIS VIDEO? Doubly Linked Lists LINKED LISTS IMPLEMENTATIONS There are different implementations of a list: Array list Singly linked list Doubly linked list Idea: the elements in the list […]
CS计算机代考程序代写 algorithm Java data structure cache COMP 250 Read More »
COMP 250 INTRODUCTION TO COMPUTER SCIENCE Week 11-1 : Rooted Trees Giulia Alberini, Fall 2020 Slides adapted from Michael Langer’s WHAT ARE WE GOING TO DO IN THIS VIDEO? Rooted Trees Terminology Implementation DATA STRUCTURES Linear array Linked list Non-linear tree graph TREE – EXAMPLE Organizational Hierarchy (McGill) EXAMPLE2:FAMILYTREE (DESCENDANTS)
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COMP 250 INTRODUCTION TO COMPUTER SCIENCE Week 9-2 : Recursion 1 Giulia Alberini, Fall 2020 WHAT ARE WE GOING TO DO IN THIS VIDEO? Recursive algorithms EXAMPLE public static void countdown(int n) { if (n == 0) { System.out.print(“Go!”); } else { System.out.print(n + “ ”); countdown(n-1); } } What prints if we call
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COMP 250 INTRODUCTION TO COMPUTER SCIENCE Week 4-4 : OOD7 Polymorphism Giulia Alberini, Fall 2020 WHAT ARE WE GOING TO DO IN THIS VIDEO? OOD7 instanceof Intro to Polymorphism Abstract Classes and Methods A LITTLE ABOUT instanceof The instanceof operator is used to test whether an object is an instance of the
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COMP 250 INTRODUCTION TO COMPUTER SCIENCE Week 11-3 : Binary Trees Giulia Alberini, Fall 2020 Slides adapted from Michael Langer’s WHAT ARE WE GOING TO DO IN THIS VIDEO? Binary Trees Expression Trees BINARY TREES BINARY TREES Each node has at most 2 children! BINARY TREES Q: What is the maximum number of nodes 𝑛
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COMP 250 INTRODUCTION TO COMPUTER SCIENCE Week 12-2 : Heaps Giulia Alberini, Fall 2020 Slides adapted from Michael Langer’s WHAT ARE WE GOING TO DO IN THIS VIDEO? Heaps HEAPS PRIORITY QUEUE Assume a set of comparable elements or “keys”. Like a queue, but now we have a more general definition of which element
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COMP 250 INTRODUCTION TO COMPUTER SCIENCE Week 5-1: Arraylist Giulia Alberini, Fall 2020 WHAT ARE WE GOING TO DO IN THIS VIDEO? Arraylist ARRAY LISTS ARRAYS IN JAVA Arrays whose elements have a primitive type int[] myInts = new int[15]; myInts[3] = -732; Arrays whose elements have a reference type Shape[] myShapes
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COMP 250 INTRODUCTION TO COMPUTER SCIENCE Week 8-3 : OOD10 Iterable and Iterator Giulia Alberini, Fall 2020 WHAT ARE WE GOING TO DO IN THIS VIDEO? Java interfaces Iterable and Iterator ITERABLE and ITERATOR REMEMBER THE FOR-EACH LOOP? int[] numbers = {1,2,3,4,5}; for(int element: numbers) { System.out.println(element); } The for-each loop (also called enhanced
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COMP 250 INTRODUCTION TO COMPUTER SCIENCE Week 7-1 : Stacks Giulia Alberini, Fall 2020 Slides adapted from Michael Langer’s WHAT ARE WE GOING TO DO IN THIS VIDEO? Stacks ABSTRACT DATA TYPE (ADT) An ADT is a model for a data type. It defines a data type by its behavior from the user’s perspective
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CS6735 Programming Project Conduct an experimental study on the following machine learning algorithms: (1) ID3; (2) Adaboost on ID3; (3) Random Forest; (4) Naïve Bayes; (5) K-nearest neighbors (kNN). Implement the five algorithms using Java or Python. Evaluate your implementation on the datasets in data.zip (downloadable from course website) using 10 times 5-fold cross-validation, and
CS计算机代考程序代写 python Hive Java algorithm data structure CS6735 Programming Project Read More »