Category: Natural Language Processing
Naveen Pandey Day 4: Stemming and Lemmatization
IntroductionNatural Language Processing (NLP) plays a critical role in understanding and processing human language. This blog discusses stemming and lemmatization, essential text normalization techniques in NLP. What is NLP and Its Components?NLP is an AI-based method of interacting with systems using natural language. It involves several steps: tokenization, lemmatization, POS tagging, named entity recognition, and…
Read MoreDay 3: Tokenization and stopword removal
Tokenization and stop word removal are two important steps in pre-processing text data for natural language processing (NLP) tasks. These steps help to prepare the text data for further analysis, modelling, and modelling training. Tokenization is the process of breaking down a larger piece of text into smaller units, called tokens, which can then be…
Read MoreDay 2: Pre-processing Text Data: Cleaning and Normalization
Pre-processing is an important step in any Natural Language Processing (NLP) project. It involves cleaning and normalizing the text data so that it can be processed effectively by NLP algorithms and models. The aim of pre-processing is to improve the quality of the data and make it easier for NLP algorithms to process. In this…
Read MoreDay 1: 30 days of Natural Language Processing (NLP)
Natural Language Processing (NLP) is a subfield of Artificial Intelligence (AI) that focuses on the interaction between computers and humans using natural language. It is a rapidly growing field that has revolutionized the way computers process, understand, and generate human language. In this blog, we will be exploring what NLP is, its history, and its…
Read MoreUnleashing Emotions: Vader for Sentiment Analysis
VADER (Valence Aware Dictionary and Sentiment Reasoner) is a lexicon and rule-based sentiment analysis library that is specifically attuned to sentiments expressed in social media. It is used for sentiment analysis tasks, especially in social media and online reviews, where the language used can be informal and often contains slang, emoticons, and sarcasm. It uses…
Read MoreSentiment Analysis using TextBlob
Sentiment analysis or opinion mining can be used to gain insights from large amounts of data. It uses natural language processing, text analysis, and computational linguistics to detect and extract emotional content from text-based sources. It is used to determine the attitudes, opinions, and emotions of a speaker or writer with respect to some topic…
Read MoreStep-by-Step Process of Implementing Stemming and Lemmatization in Python?
Install the Natural Language Toolkit (NLTK) library. This library provides a range of tools for natural language processing, including stemming and lemmatization algorithms. You can install it using pip install nltk. Import the necessary functions from the NLTK library. For example, to use the Porter stemmer, you would use the following import statement: from nltk.stem.porter…
Read MoreWhat is the Normal Distribution?
Probability distribution is the function that shows the probabilities of the outcome of an event or experiment. Consider a feature (i.e., column) in a dataframe. This feature is a variable and its probability distribution function shows the likelihood of the values it can take. Probability distribution function are quite useful in predictive analytics or machine…
Read MoreWhat are decorators in Python?
Decorators are used to add some design pattern to a function without changing its structure. Decorators generally are defined before the function they are enhancing. To apply a decorator, we first define the decorator function it is applied to and simply add the decorator function above the function it has to be applied to. For…
Read MoreHotel Sentiment Analysis using NLP
Whenever we are trying to find hotels for vacation or travel, we always prefer a hotel known for its services. The simplest way to find out whether a hotel is right for you or not is to find out what people are saying about the hotel who have stayed there before. Now it’s very difficult…
Read MoreWhat is doc2vec and word2vec in NLP?
Doc2vec is a technique that extracts semantic information from documents and then uses that information to classify the documents. By applying Doc2vec to existing documents, it becomes possible for AI software to rapidly identify similar topics in a large collection of text without having to read the entire corpus. This technique has been used in…
Read MoreTop 40 Data Science Interview Questions and Answers
1 – What is F1 score? F1 score is a measure of the accuracy of a model. It is defined as the harmonic mean of precision and recall. F1 score is one of the most popular metrics for assessing how well a machine learning algorithm performs on predicting a target variable. F1 score ranges from…
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