Create an AI project, focusing on Natural Language Processing (NLP). We’ll build a sentiment analysis model using Python and the popular NLP library, NLTK (Natural Language Toolkit). 1. Project Setup: 2. Data Preparation: 3. Data Preprocessing: 4. Model Training: 5. Model Evaluation: 6. Prediction: 7. Project Conclusion: This project provides a simple sentiment analysis model…
Let’s create a simple AI project using Python and a popular machine learning library, scikit-learn. In this example, we’ll build a basic machine learning model for classifying iris flowers using the famous Iris dataset. 1. Project Setup: 2. Data Loading: 3. Data Splitting: 4. Model Training: 5. Model Evaluation: 6. Prediction: 7. Project Conclusion: This…
Read More “Project: Iris Flower Classification with Machine Learning” »
Suppose an array of length n sorted in ascending order is rotated between 1 and n times. For example, the array nums = [0,1,4,4,5,6,7] might become: Notice that rotating an array [a[0], a[1], a[2], …, a[n-1]] 1 time results in the array [a[n-1], a[0], a[1], a[2], …, a[n-2]]. Given the sorted rotated array nums that may contain duplicates, return the minimum element of this array. You must decrease the overall operation steps as much…
Read More “LeetCode Hard – Find Minimum in Rotated Sorted Array II” »
Given an array of points where points[i] = [xi, yi] represents a point on the X-Y plane, return the maximum number of points that lie on the same straight line. Example 1: Input: points = [[1,1],[2,2],[3,3]] Output: 3 Example 2: Input: points = [[1,1],[3,2],[5,3],[4,1],[2,3],[1,4]] Output: 4 Constraints: Java Solution To solve this problem, you can iterate through each pair of points and…
Given a string s and a dictionary of strings wordDict, add spaces in s to construct a sentence where each word is a valid dictionary word. Return all such possible sentences in any order. Note that the same word in the dictionary may be reused multiple times in the segmentation. Example 1: Input: s = “catsanddog”, wordDict = [“cat”,”cats”,”and”,”sand”,”dog”] Output: [“cats and…
There are n children standing in a line. Each child is assigned a rating value given in the integer array ratings. You are giving candies to these children subjected to the following requirements: Return the minimum number of candies you need to have to distribute the candies to the children. Example 1: Input: ratings = [1,0,2] Output: 5 Explanation:…
Given a string s, partition s such that every substring of the partition is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. Example 1: Input: s = “aab” Output: 1 Explanation: The palindrome partitioning [“aa”,”b”] could be produced using 1 cut. Example 2: Input: s = “a” Output: 0 Example 3: Input: s = “ab” Output: 1 Constraints:…
A transformation sequence from word beginWord to word endWord using a dictionary wordList is a sequence of words beginWord -> s1 -> s2 -> … -> sk such that: Given two words, beginWord and endWord, and a dictionary wordList, return the number of words in the shortest transformation sequence from beginWord to endWord, or 0 if no such sequence exists. Example 1: Input: beginWord = “hit”, endWord = “cog”, wordList = [“hot”,”dot”,”dog”,”lot”,”log”,”cog”] Output: 5 Explanation: One shortest transformation sequence…
A transformation sequence from word beginWord to word endWord using a dictionary wordList is a sequence of words beginWord -> s1 -> s2 -> … -> sk such that: Given two words, beginWord and endWord, and a dictionary wordList, return all the shortest transformation sequences from beginWord to endWord, or an empty list if no such sequence exists. Each sequence should be returned as a list of the words [beginWord, s1, s2, …, sk]. Example 1:…
A path in a binary tree is a sequence of nodes where each pair of adjacent nodes in the sequence has an edge connecting them. A node can only appear in the sequence at most once. Note that the path does not need to pass through the root. The path sum of a path is the sum of the node’s…
