#supervisedlearning

[edutech-brijesh]

Machine learning algorithms use data to make predictions and decisions without explicit programming, enabling automation and insights for various applications like healthcare and finance.

[enlightenedsloth]

mGPS-An invisible map on your skin

Ever got confused about whether you have to exit from the next diversion or not, while using Google Maps? A trivial problem, owing to the accuracy of GPS (Global Positioning System). Speaking about accuracy, we now have mGPS (Microbiome Geographic Population Structure). At first, the name seems like biology, geography and demography combined into one, but it’s not that complex. It is an AI tool which can track which place you have recently visited, be it a beach or a city centre.

The researchers found that when you touch a particular surface like a tree in the woods, you pick up bacteria that is unique to that area, advocating that unique populations of bacteria exist in different locations. This phenomenon of the unique existence of microorganisms is called microbiome. Eran Elhaik, who led the study stated that they analyzed extensive datasets of microbiome samples from urban environments, soil and marine ecosystems and trained the AI model to identify unique proportions of it and link them to specific locations. Simply put, it’s like analyzing the unique blend of spices in a dish to figure out which country or region it came from. The analyzing bit is done by the AI tool, which already knows which spices belong to which region as the data has been fed into it.

The research team gathered a vast collection of microbiome samples, including 4135 samples from public transit systems in 53 cities, 237 soil samples from 18 countries, and 131 marine samples from nine different water bodies. The tool was successful at identifying the city source for 92% of the urban samples.

But how was the tool trained anyway, or how are any of the AI tools trained?

First thing first- Data collection and labelling. Both go hand-in-hand, for example, the collected microbiome samples must have been labelled with their geographic origin like country or environment type (urban, soil, marine). Then, after cleaning, the data is fed to the model. The model selection part is also a crucial one. An advanced model like a supervised machine learning model or a deep learning model must have been chosen. To improve the efficiency of the tool, it will be trained continuously on the labelled data of different samples with unique compositions.

What’s even more interesting is its application-

Imagine the cops arresting a set of suspects and running their microorganism orientation through the AI tool to know where they were on the night of the crime, or, the AI tool accurately identifying the location from where a particular virus was picked up and eliminating it from the source itself. By analyzing artefacts through mGPS, archaeologists would be able to track human migration accurately.

Technologies like mGPS are not difficult to build, at least in theory. Execution might be an issue due to the collection and feeding of vast amounts of samples. However, with collaboration and support, it can be executed, and with ease as well. Ultimately, it comes down to the extent of your imagination.

You can build it if you can imagine it.

[fortunatelycoldengineer]

Data Mining Quiz . . . . write your answer in the comment section https://bit.ly/3N3Simx Check Q.No. 46 for more information

[anandshivam2411]

Machine Learning Algorithms for Beginners: A Simple Guide to Getting Started

Machine learning (ML) algorithms are powerful tools that allow computers to learn from data, identify patterns, and make decisions without explicit programming. These algorithms are categorized into three types: supervised learning, unsupervised learning, and reinforcement learning.

Supervised Learning involves training a model on labeled data, where each input has a corresponding output. Common algorithms in this category include linear regression (used for predicting continuous values), logistic regression (for binary classification), and decision trees (which split data based on certain criteria for classification or regression tasks).

Unsupervised Learning is used when there are no labels in the data. The algorithm tries to find hidden patterns or groupings. K-means clustering is a popular algorithm that divides data into clusters, while Principal Component Analysis (PCA) helps reduce data complexity by transforming features.

Reinforcement Learning is based on learning through interaction with an environment to maximize cumulative rewards. An example is Q-learning, where an agent learns which actions to take based on rewards and penalties.

Selecting the right algorithm depends on the problem you want to solve. For beginners, understanding these basic algorithms and experimenting with real-world data is key to mastering machine learning. As you practice, you’ll gain the skills to apply these algorithms effectively.

For deeper knowledge on machine learning algorithms, here is a blog where I learned more about these concepts.

[govindhtech]

Supervised & Unsupervised Learning: What’s The Difference?

This essay covers supervised and unsupervised data science basics. Choose an approach that fits you.

The world is getting “smarter” every day, and firms are using machine learning algorithms to simplify to meet client expectations. Unique purchases alert them to credit card fraud, and facial recognition unlocks phones to detect end-user devices.

Supervised learning and unsupervised learning are the two fundamental methods in machine learning and artificial intelligence (AI). The primary distinction is that one makes use of labeled data to aid in result prediction, whilst the other does not. There are some differences between the two strategies, though, as well as important places where one performs better than the other. To help you select the right course of action for your circumstances, this page explains the distinctions.

What is supervised learning?

Labeled data sets are used in supervised learning, a machine learning technique. These datasets are intended to “supervise” or train algorithms to correctly identify data or forecast results. The model may gauge its accuracy and gain knowledge over time by using labeled inputs and outputs.

When it comes to data mining, supervised learning may be divided into two categories of problems: regression and classification.

To correctly classify test data into distinct groups, such as differentiating between apples and oranges, classification problems employ an algorithm. Alternatively, spam in a different folder from your inbox can be categorized using supervised learning algorithms in the real world. Common classification algorithm types include decision trees, random forests, support vector machines, and linear classifiers.

Another kind of supervised learning technique is regression, which use an algorithm to determine the correlation between dependent and independent variables. Predicting numerical values based on several data sources, such sales revenue estimates for a certain company, is made easier by regression models. Polynomial regression, logistic regression, and linear regression are a few common regression algorithms.

What is unsupervised learning?

Unsupervised learning analyzes and groups unlabeled data sets using machine learning methods. These algorithms are “unsupervised” because they find hidden patterns in data without the assistance of a human.

Three primary tasks are addressed by unsupervised learning models: dimensionality reduction, association, and clustering.

A data mining technique called clustering is used to arrange unlabeled data according to similarities or differences. K-means clustering techniques, for instance, group related data points into groups; the size and granularity of the grouping are indicated by the K value. This method works well for picture compression, market segmentation, and other applications.

Another kind of unsupervised learning technique is association, which looks for links between variables in a given data set using a variety of rules. These techniques, such as “Customers Who Bought This Item Also Bought” suggestions, are commonly applied to recommendation engines and market basket analysis.

When there are too many characteristics in a given data collection, a learning technique called “dimensionality reduction” is applied. It maintains the data integrity while bringing the quantity of data inputs down to a manageable level.

This method is frequently applied during the preprocessing phase of data, such as when autoencoders eliminate noise from visual data to enhance image quality.

The main difference between supervised and unsupervised learning

Using labeled data sets is the primary difference between the two methods. In short, an unsupervised learning method does not employ labeled input and output data, whereas supervised learning does.

The algorithm “learns” from the training data set in supervised learning by repeatedly predicting the data and modifying for the right response. Supervised learning algorithms need human interaction up front to properly identify the data, even though they are typically more accurate than unsupervised learning models. For instance, depending on the time of day, the weather, and other factors, a supervised learning model can forecast how long your commute will take. However, you must first teach it that driving takes longer in rainy conditions.

In contrast, unsupervised learning algorithms find the underlying structure of unlabeled data on their own. Keep in mind that human intervention is still necessary for the output variables to be validated. An unsupervised learning model, for instance, can recognize that online buyers frequently buy many items at once. The rationale behind a recommendation engine grouping baby garments in an order of diapers, applesauce, and sippy cups would need to be confirmed by a data analyst.

Other key differences between supervised and unsupervised learning

Predicting results for fresh data is the aim of supervised learning. You are aware of the kind of outcome you can anticipate in advance. The objective of an unsupervised learning algorithm is to extract knowledge from vast amounts of fresh data. What is unique or intriguing about the data set is determined by the machine learning process itself.

Applications

Among other things, supervised learning models are perfect for sentiment analysis, spam detection, weather forecasting, and pricing forecasts. Unsupervised learning, on the other hand, works well with medical imaging, recommendation engines, anomaly detection, and customer personas.

Complexity

R or Python are used to compute supervised learning, a simple machine learning method. Working with massive volumes of unclassified data requires strong skills in unsupervised learning. Because unsupervised learning models require a sizable training set in order to yield the desired results, they are computationally complex.

Cons

Labeling input and output variables requires experience, and training supervised learning models can take a lot of time. In the meanwhile, without human interaction to evaluate the output variables, unsupervised learning techniques can produce radically erroneous findings.

Supervised versus unsupervised learning: Which is best for you?

How your data scientists evaluate the volume and structure of your data, along with the use case, will determine which strategy is best for you. Make sure you accomplish the following before making your choice:

Analyze the data you entered: Is the data labeled or unlabeled? Do you have professionals who can help with additional labeling?

Specify your objectives: Do you have a persistent, clearly stated issue that needs to be resolved? Or will it be necessary for the algorithm to anticipate new issues?

Examine your algorithmic options: Is there an algorithm that has the same dimensionality (number of features, traits, or characteristics) that you require? Are they able to handle the volume and structure of your data?

Although supervised learning can be very difficult when it comes to classifying large data, the outcomes are very reliable and accurate. Unsupervised learning can process enormous data sets in real time. However, data clustering is less transparent and outcomes are more likely to be inaccurate. Semi-supervised learning can help with this.

Semi-supervised learning: The best of both worlds

Unable to choose between supervised and unsupervised learning? Using a training data collection that contains both labeled and unlabeled data is a happy medium known as semi-supervised learning. It is especially helpful when there is a large amount of data and when it is challenging to extract pertinent features from the data.

For medical imaging, where a modest amount of training data can result in a considerable gain in accuracy, semi-supervised learning is perfect. To help the system better anticipate which individuals would need further medical attention, a radiologist could, for instance, mark a small subset of CT scans for disorders or tumors.

Read more on Govindhtech.com

[academic1995]

Machine learning

Machine learning algorithms are data-driven models that analyze large datasets, identify patterns, and make predictions or decisions without explicit programming. These algorithms range from supervised models like decision trees and regression, which rely on labeled data, to unsupervised methods such as clustering and dimensionality reduction, which reveal hidden structures in data. Reinforcement learning techniques empower systems to learn from feedback and optimize actions in real time, while deep learning algorithms leverage neural networks to excel in complex tasks like image and speech recognition.

Website : sciencefather.com

Nomination: Nominate Now

Registration: Register Now

Contact Us: contact@academicexcellenceawards.com

[thedevmaster-tdm]

Unlocking the Secrets of LLM Fine Tuning! 🚀✨

[learnandgrowcommunity]

AI & Machine Learning Fundamentals in 2 Hours for Beginners

Welcome to "AI & Machine Learning Fundamentals in 2 Hours for Beginners"! This session is designed to provide a comprehensive introduction to Artificial Intelligence (AI) and Machine Learning (ML), covering essential topics and concepts in a concise, easy-to-understand format. Whether you're a novice or looking to refresh your knowledge, this session is perfect for you.

Video Link - https://youtu.be/AYCul4JiryQ

Subscribe to "Learn And Grow Community" Follow #LearnAndGrowCommunity

[probabs]

Deep Reinforcement Learning

Get to grips with deep reinforcement learning in Probabs' advanced course. Learn how to tackle complex decision-making problems in AI and robotics like a pro.

[globaltechnologysolution]

An AI dataset is a collection of data used for training, testing, and validating machine learning models, and its quality and diversity are crucial for accurate and reliable model performance.

Visit:

[theaifusion]

Hyperparameter tuning in machine learning

The performance of a machine learning model in the dynamic world of artificial intelligence is crucial, we have various algorithms for finding a solution to a business problem. Some algorithms like linear regression , logistic regression have parameters whose values are fixed so we have to use those models without any modifications for training a model but there are some algorithms out there where the values of parameters are not fixed.

Here's a complete guide to Hyperparameter tuning in machine learning in Python!

#datascience #dataanalytics #dataanalysis #statistics #machinelearning #python #deeplearning #supervisedlearning #unsupervisedlearning

[contadorpj]

#MachineLearningDescomplicado 💡

Hoje vamos desbravar o universo do #MachineLearning! 🌐

O que é ML? 🤔

ML é como ensinar computadores a aprenderem! 🧠💻

#Algoritmos inteligentes aprendem com dados. 📊📈

Tipos de ML 🔄

#SupervisedLearning: Ensino com exemplos rotulados! 🏫📚

#UnsupervisedLearning: Descobertas sem rótulos! 🕵♂🌌

#ReinforcementLearning: Aprendendo com recompensas! 🏆🕹

Neural Networks 🧠💡

Inspirado no cérebro! 🧠🔗

#DeepLearning: Múltiplas camadas de neurônios! 🌐🔍

Dados, Dados, Dados! 📊📉

#BigData: Grandes volumes de dados! 🌐

🔢

Qualidade dos dados é crucial! 📏👌

Overfitting vs. Underfitting 📉📈

#Overfitting: Aprender demais! 🚀📚

#Underfitting: Não aprende o suficiente! 🚫📚

Avaliação de Modelos 📏📐

#Accuracy: Precisão é chave! ✔📊

#CrossValidation: Testando robustez! 🔄

📂

Deploy do Modelo 🚀🌐

Colocando o modelo em ação! 🚀🎬

#CloudComputing facilita! ☁💻

Agora, você está pronto para explorar o incrível mundo do #MachineLearning! 🚀🌟

#TechTalk #DataScience #AprendizadoDeMáquina #TechExplained

[fortunatelycoldengineer]

Data Mining Quiz . . . . write your answer in the comment section https://bit.ly/3N3Simx Check Q.No. 48 for more information

[anandshivam2411]

Essential Machine Learning Algorithms Every Beginner Should Know

Machine learning is a type of technology that allows computers to learn from data and make decisions on their own, without needing to be programmed with specific instructions. Instead of just following rules, it looks at examples and patterns in data to make predictions or decisions. It’s similar to how humans learn from experience.

There are different types of machine learning. In supervised learning, computers are trained with data that already has the correct answers, helping them understand patterns. In unsupervised learning, computers look at data without any answers and try to find patterns by themselves. Reinforcement learning is when computers learn by trying things out and getting feedback, like rewards or punishments.

Machine Learning Algorithms Every Beginner Should Know include basic ones like linear regression for predicting numbers, classification algorithms like decision trees for sorting data, and clustering techniques like k-means for grouping similar data. These are just the beginning, but they are essential for anyone looking to understand and apply machine learning.

Machine learning is used everywhere. In healthcare, it helps doctors diagnose diseases or predict future health problems. In shopping, websites like Amazon recommend products based on what you’ve bought before. It’s also behind things like self-driving cars and the suggestions you get on social media.

[toboldlycode-blog]

Posted @withregram • @whats_ai Machine Learning (ML) divided into: :Supervised Learning: Classification + Regression and Clustering models and their corresponding algorithms and methods Follow @toboldlycode Credits @artificialintelligence.digest . . . . . #data #datanalytics #datascience #datascientist #ai #ml #artificialintelligence #machinelearning #deeplearning #neuralnetworks #supervisedlearning #unsupervisedlearning #clustering #classification #regression #toboldlycode (at Chicago, Illinois) https://www.instagram.com/p/B7izQiMA7S4/?igshid=f8p815rltchi

[rithangowda29]

An Unbiased View Of The 6 Types of Supervised Learning

Supervised Machine Learning is an important area in today's world of big data. From your search history to your Facebook likes, many various types of data can be utilized with supervised learning. The field is constantly advancing, especially with the advent of deep neural networks, which can process image and speech data more accurately than before.

In this article, we will go over the detailed introduction of supervised learning along with its applications.

Supervised learning

Supervised learning is the process of training a model on training data, then validating its predictions against new data. The critical process allows machine learning algorithms to be used for various tasks, including fraud detection, image analysis, and recommendation engines.

Difference between Supervised and Unsupervised learning:

Supervised learning is when you have some data about the relationship between two or more variables and want to use that data to predict new values for unknown variables. This can be used for classification or regression problems.

Unsupervised learning is when you have no training data but want to make predictions based on relationships between variables. This type of prediction can be used for clustering or dimensionality reduction problems. A detailed explanation of ML types can be found in a Machine learning course in Delhi, co-developed with IBM.

Classification: 

The goal of classification is to determine the correct class labels for new instances (data) based on their relationship with examples stored in the training set. This type of learning is used when the labels represent categorical values, which can be either discrete or continuous.

For example, using classification, you can decide whether or not a creditor will default on a loan if you are planning to give them credit.

Regression: 

This type of learning aims to predict continuous variables given a set of known values for those variables (that have been previously determined).

By using training data, regression generates a single output value. This value is a probabilistic interpretation determined by assessing the correlation strength among the input parameters. For example, a regression can effectively forecast the price of a property based on its location, size, and other factors.

By using logistic regression, the output contains discrete values depending on a collection of independent factors. When dealing with non-linear and various choice limits, this strategy might fail. 

Linear Regression

Linear regression is one example of a supervised learning algorithm that uses a linear fit between the input and output variables. The output variable is called the prediction variable, and it's used to predict an outcome (for example, whether or not a patient will die). The model's coefficients are the x-intercepts of the line, and its slope represents how much change there is from y-intercept to y-intercept.

Logistic regression

When the dependent variable has a binary or categorical output, such as "yes" or "no," logistic regression is utilized. Additionally, logistic regression forecasts discrete values for variables since it is employed to address binary classification problems.

Naive Bayesian Model:

The Bayesian classification model is used for big finite datasets. It is a technique of assigning class labels that use a direct acyclic graph. The graph has one parent node and many child nodes. Moreover, each child node is expected to be independent and different from the parent. Since the supervised learning model in ML supports the development of classifiers in a basic and easy manner, it works well with smaller data sets.

This model is based on common data assumptions, such as the hypothesis that each attribute is independent. Despite its simplicity, this approach can be easily applied to complex situations.

Decision Trees: 

Decision Trees classify depending on the values of the features. They apply the Information Gain approach to figure out which component of the dataset provides the critical information, identify that as the root node, and so on until they can classify each dataset sample. Every branch of the Decision denotes a dataset feature. They are one of the most extensively used classification methods.

Random Forest Model:

Using an ensemble approach, the random forest model. It works by building several decision trees and then classifying each tree as it is generated.

The random forest algorithm uses many supervised learning techniques to reach a conclusion and is frequently referred to as an ensemble method. It also employs several decision trees to output the classification of individual trees. It is, therefore, commonly used in a variety of sectors.

Support Vector Machine (SVM): 

SVM algorithms are based on Vap Nik's statistical learning theory. Kernel functions, which are a crucial notion in most learning tasks, are often used. These techniques generate a hyper-plane to differentiate between the two classes.

Application of supervised learning

Speech recognition:

This is the type of application where you train the algorithm about your voice, and it recognizes you. The most popular real-world applications are virtual assistants like Google Assistant and Siri. 

Spam Detection:

This technology is used to prevent unreal or computer-based texts and E-Mails. Gmail includes an algorithm that learns the many terms that may be fraudulent and block those messages immediately.

Conclusion

To sum up, supervised learning is widely used in machine learning. They are primarily used to derive the relation between inputs and the output, e.g., the connection between the pixel of a photo (input) and its label, i.e., whether it depicts a school bus or car, which determines its usefulness for an object recognition task. In applications such as pattern recognition/computer vision, it is often labeled as a classification problem and falls under the discriminative learning domain. This is super simple for humans because we are used to looking at the world around us and labeling it by what we see. The goal of supervised learning is to create an algorithm using a dataset that can be used as a black box, and other algorithms can be applied to achieve similar results. 

If you want to learn more about machine learning, check out Learnbay's Data science course in Delhi, which is intended for working professionals and provides 450+ hours of in-depth training with 12+ hands-on practical projects.