Forwarded from Artificial Intelligence
๐๐ผ๐ผ๐ธ๐ถ๐ป๐ด ๐๐ผ ๐๐๐ฎ๐ฟ๐ ๐๐ผ๐๐ฟ ๐๐ฎ๐๐ฎ ๐ฆ๐ฐ๐ถ๐ฒ๐ป๐ฐ๐ฒ ๐ฎ๐ป๐ฑ ๐๐ฎ๐๐ฎ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐ ๐ท๐ผ๐๐ฟ๐ป๐ฒ๐ ๐ถ๐ป ๐ฎ๐ฌ๐ฎ๐ฑ?๐
๐ These free courses are designed for learners at all levels, whether youโre a beginner or an advanced professional๐
๐๐ข๐ง๐ค๐:-
https://pdlink.in/41Y1WQm
Donโt Wait! Start your Learning Journey Todayโ ๏ธ
๐ These free courses are designed for learners at all levels, whether youโre a beginner or an advanced professional๐
๐๐ข๐ง๐ค๐:-
https://pdlink.in/41Y1WQm
Donโt Wait! Start your Learning Journey Todayโ ๏ธ
โค4๐1
Many people pay too much to learn Data Science, but my mission is to break down barriers. I have shared complete learning series to learn Data Science algorithms from scratch.
Here are the links to the Data Science series ๐๐
Complete Data Science Algorithms: https://t.iss.one/datasciencefun/1708
Part-1: https://t.iss.one/datasciencefun/1710
Part-2: https://t.iss.one/datasciencefun/1716
Part-3: https://t.iss.one/datasciencefun/1718
Part-4: https://t.iss.one/datasciencefun/1719
Part-5: https://t.iss.one/datasciencefun/1723
Part-6: https://t.iss.one/datasciencefun/1724
Part-7: https://t.iss.one/datasciencefun/1725
Part-8: https://t.iss.one/datasciencefun/1726
Part-9: https://t.iss.one/datasciencefun/1729
Part-10: https://t.iss.one/datasciencefun/1730
Part-11: https://t.iss.one/datasciencefun/1733
Part-12:
https://t.iss.one/datasciencefun/1734
Part-13: https://t.iss.one/datasciencefun/1739
Part-14: https://t.iss.one/datasciencefun/1742
Part-15: https://t.iss.one/datasciencefun/1748
Part-16: https://t.iss.one/datasciencefun/1750
Part-17: https://t.iss.one/datasciencefun/1753
Part-18: https://t.iss.one/datasciencefun/1754
Part-19: https://t.iss.one/datasciencefun/1759
Part-20: https://t.iss.one/datasciencefun/1765
Part-21: https://t.iss.one/datasciencefun/1768
I saw a lot of big influencers copy pasting my content after removing the credits. It's absolutely fine for me as more people are getting free education because of my content.
But I will really appreciate if you share credits for the time and efforts I put in to create such valuable content. I hope you can understand.
Thanks to all who support our channel and share the content with proper credits. You guys are really amazing.
Hope it helps :)
Here are the links to the Data Science series ๐๐
Complete Data Science Algorithms: https://t.iss.one/datasciencefun/1708
Part-1: https://t.iss.one/datasciencefun/1710
Part-2: https://t.iss.one/datasciencefun/1716
Part-3: https://t.iss.one/datasciencefun/1718
Part-4: https://t.iss.one/datasciencefun/1719
Part-5: https://t.iss.one/datasciencefun/1723
Part-6: https://t.iss.one/datasciencefun/1724
Part-7: https://t.iss.one/datasciencefun/1725
Part-8: https://t.iss.one/datasciencefun/1726
Part-9: https://t.iss.one/datasciencefun/1729
Part-10: https://t.iss.one/datasciencefun/1730
Part-11: https://t.iss.one/datasciencefun/1733
Part-12:
https://t.iss.one/datasciencefun/1734
Part-13: https://t.iss.one/datasciencefun/1739
Part-14: https://t.iss.one/datasciencefun/1742
Part-15: https://t.iss.one/datasciencefun/1748
Part-16: https://t.iss.one/datasciencefun/1750
Part-17: https://t.iss.one/datasciencefun/1753
Part-18: https://t.iss.one/datasciencefun/1754
Part-19: https://t.iss.one/datasciencefun/1759
Part-20: https://t.iss.one/datasciencefun/1765
Part-21: https://t.iss.one/datasciencefun/1768
I saw a lot of big influencers copy pasting my content after removing the credits. It's absolutely fine for me as more people are getting free education because of my content.
But I will really appreciate if you share credits for the time and efforts I put in to create such valuable content. I hope you can understand.
Thanks to all who support our channel and share the content with proper credits. You guys are really amazing.
Hope it helps :)
๐7
Forwarded from Python Projects & Resources
๐๐ฒ๐น๐ผ๐ถ๐๐๐ฒ ๐ฉ๐ถ๐ฟ๐๐๐ฎ๐น ๐๐ฅ๐๐ ๐๐ฎ๐๐ฎ ๐๐ป๐ฎ๐น๐๐๐ถ๐ฐ๐ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐
If youโre eager to build real skills in data analytics before landing your first role, Deloitte is giving you a golden opportunityโcompletely free!
๐ก No prior experience required
๐ Ideal for students, freshers, and aspiring data analysts
โฐ Self-paced โ complete at your convenience
๐ ๐๐ฝ๐ฝ๐น๐ ๐๐ฒ๐ฟ๐ฒ (๐๐ฟ๐ฒ๐ฒ)๐:-
https://pdlink.in/4iKcgA4
Enroll for FREE & Get Certified ๐
If youโre eager to build real skills in data analytics before landing your first role, Deloitte is giving you a golden opportunityโcompletely free!
๐ก No prior experience required
๐ Ideal for students, freshers, and aspiring data analysts
โฐ Self-paced โ complete at your convenience
๐ ๐๐ฝ๐ฝ๐น๐ ๐๐ฒ๐ฟ๐ฒ (๐๐ฟ๐ฒ๐ฒ)๐:-
https://pdlink.in/4iKcgA4
Enroll for FREE & Get Certified ๐
Data Science Roadmap โ Step-by-Step Guide ๐
1๏ธโฃ Programming & Data Manipulation
Python (Pandas, NumPy, Matplotlib, Seaborn)
SQL (Joins, CTEs, Window Functions, Aggregations)
Data Wrangling & Cleaning (handling missing data, duplicates, normalization)
2๏ธโฃ Statistics & Mathematics
Descriptive Statistics (Mean, Median, Mode, Variance, Standard Deviation)
Probability Theory (Bayes' Theorem, Conditional Probability)
Hypothesis Testing (T-test, ANOVA, Chi-square test)
Linear Algebra & Calculus (Matrix operations, Differentiation)
3๏ธโฃ Data Visualization
Matplotlib & Seaborn for static visualizations
Power BI & Tableau for interactive dashboards
ggplot (R) for advanced visualizations
4๏ธโฃ Machine Learning Fundamentals
Supervised Learning (Linear Regression, Logistic Regression, Decision Trees)
Unsupervised Learning (Clustering, PCA, Anomaly Detection)
Model Evaluation (Confusion Matrix, Precision, Recall, F1-Score, AUC-ROC)
5๏ธโฃ Advanced Machine Learning
Ensemble Methods (Random Forest, Gradient Boosting, XGBoost)
Hyperparameter Tuning (GridSearchCV, RandomizedSearchCV)
Deep Learning Basics (Neural Networks, TensorFlow, PyTorch)
6๏ธโฃ Big Data & Cloud Computing
Distributed Computing (Hadoop, Spark)
Cloud Platforms (AWS, GCP, Azure)
Data Engineering Basics (ETL Pipelines, Apache Kafka, Airflow)
7๏ธโฃ Natural Language Processing (NLP)
Text Preprocessing (Tokenization, Lemmatization, Stopword Removal)
Sentiment Analysis, Named Entity Recognition
Transformers & Large Language Models (BERT, GPT)
8๏ธโฃ Deployment & Model Optimization
Flask & FastAPI for model deployment
Model monitoring & retraining
MLOps (CI/CD for Machine Learning)
9๏ธโฃ Business Applications & Case Studies
A/B Testing & Experimentation
Customer Segmentation & Churn Prediction
Time Series Forecasting (ARIMA, LSTM)
๐ Soft Skills & Career Growth
Data Storytelling & Communication
Resume & Portfolio Building (Kaggle Projects, GitHub Repos)
Networking & Job Applications (LinkedIn, Referrals)
Free Data Science Resources: https://whatsapp.com/channel/0029Va8v3eo1NCrQfGMseL2D
ENJOY LEARNING ๐๐
1๏ธโฃ Programming & Data Manipulation
Python (Pandas, NumPy, Matplotlib, Seaborn)
SQL (Joins, CTEs, Window Functions, Aggregations)
Data Wrangling & Cleaning (handling missing data, duplicates, normalization)
2๏ธโฃ Statistics & Mathematics
Descriptive Statistics (Mean, Median, Mode, Variance, Standard Deviation)
Probability Theory (Bayes' Theorem, Conditional Probability)
Hypothesis Testing (T-test, ANOVA, Chi-square test)
Linear Algebra & Calculus (Matrix operations, Differentiation)
3๏ธโฃ Data Visualization
Matplotlib & Seaborn for static visualizations
Power BI & Tableau for interactive dashboards
ggplot (R) for advanced visualizations
4๏ธโฃ Machine Learning Fundamentals
Supervised Learning (Linear Regression, Logistic Regression, Decision Trees)
Unsupervised Learning (Clustering, PCA, Anomaly Detection)
Model Evaluation (Confusion Matrix, Precision, Recall, F1-Score, AUC-ROC)
5๏ธโฃ Advanced Machine Learning
Ensemble Methods (Random Forest, Gradient Boosting, XGBoost)
Hyperparameter Tuning (GridSearchCV, RandomizedSearchCV)
Deep Learning Basics (Neural Networks, TensorFlow, PyTorch)
6๏ธโฃ Big Data & Cloud Computing
Distributed Computing (Hadoop, Spark)
Cloud Platforms (AWS, GCP, Azure)
Data Engineering Basics (ETL Pipelines, Apache Kafka, Airflow)
7๏ธโฃ Natural Language Processing (NLP)
Text Preprocessing (Tokenization, Lemmatization, Stopword Removal)
Sentiment Analysis, Named Entity Recognition
Transformers & Large Language Models (BERT, GPT)
8๏ธโฃ Deployment & Model Optimization
Flask & FastAPI for model deployment
Model monitoring & retraining
MLOps (CI/CD for Machine Learning)
9๏ธโฃ Business Applications & Case Studies
A/B Testing & Experimentation
Customer Segmentation & Churn Prediction
Time Series Forecasting (ARIMA, LSTM)
๐ Soft Skills & Career Growth
Data Storytelling & Communication
Resume & Portfolio Building (Kaggle Projects, GitHub Repos)
Networking & Job Applications (LinkedIn, Referrals)
Free Data Science Resources: https://whatsapp.com/channel/0029Va8v3eo1NCrQfGMseL2D
ENJOY LEARNING ๐๐
๐4
Forwarded from Artificial Intelligence
๐ฒ ๐๐ฟ๐ฒ๐ฒ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐๐ผ ๐ ๐ฎ๐ธ๐ฒ ๐ฌ๐ผ๐๐ฟ ๐ฅ๐ฒ๐๐๐บ๐ฒ ๐ฆ๐๐ฎ๐ป๐ฑ ๐ข๐๐ ๐ถ๐ป ๐ฎ๐ฌ๐ฎ๐ฑ๐
As competition heats up across every industry, standing out to recruiters is more important than ever๐๐
The best part? You donโt need to spend a rupee to do it!๐ฐ
๐๐ข๐ง๐ค๐:-
https://pdlink.in/4m0nNOD
๐ Start learning. Start standing outโ ๏ธ
As competition heats up across every industry, standing out to recruiters is more important than ever๐๐
The best part? You donโt need to spend a rupee to do it!๐ฐ
๐๐ข๐ง๐ค๐:-
https://pdlink.in/4m0nNOD
๐ Start learning. Start standing outโ ๏ธ
Difference between linear regression and logistic regression ๐๐
Linear regression and logistic regression are both types of statistical models used for prediction and modeling, but they have different purposes and applications.
Linear regression is used to model the relationship between a dependent variable and one or more independent variables. It is used when the dependent variable is continuous and can take any value within a range. The goal of linear regression is to find the best-fitting line that describes the relationship between the independent and dependent variables.
Logistic regression, on the other hand, is used when the dependent variable is binary or categorical. It is used to model the probability of a certain event occurring based on one or more independent variables. The output of logistic regression is a probability value between 0 and 1, which can be interpreted as the likelihood of the event happening.
Data Science Interview Resources
๐๐
https://topmate.io/coding/914624
Like for more ๐
Linear regression and logistic regression are both types of statistical models used for prediction and modeling, but they have different purposes and applications.
Linear regression is used to model the relationship between a dependent variable and one or more independent variables. It is used when the dependent variable is continuous and can take any value within a range. The goal of linear regression is to find the best-fitting line that describes the relationship between the independent and dependent variables.
Logistic regression, on the other hand, is used when the dependent variable is binary or categorical. It is used to model the probability of a certain event occurring based on one or more independent variables. The output of logistic regression is a probability value between 0 and 1, which can be interpreted as the likelihood of the event happening.
Data Science Interview Resources
๐๐
https://topmate.io/coding/914624
Like for more ๐
๐3
Understanding Bias and Variance in Machine Learning
Bias refers to the error in the model when the model is not able to capture the pattern in the data and what results is an underfit model (High Bias).
Variance refers to the error in the model, when the model is too much tailored to the training data and fails to generalise for unseen data which refers to an overfit model (High Variance)
There should be a tradeoff between bias and variance. An optimal model should have Low Bias and Low Variance so as to avoid underfitting and overfitting.
Techniques like cross validation can be helpful in these cases.
โโโโโโโโโโโโโโ
Bias refers to the error in the model when the model is not able to capture the pattern in the data and what results is an underfit model (High Bias).
Variance refers to the error in the model, when the model is too much tailored to the training data and fails to generalise for unseen data which refers to an overfit model (High Variance)
There should be a tradeoff between bias and variance. An optimal model should have Low Bias and Low Variance so as to avoid underfitting and overfitting.
Techniques like cross validation can be helpful in these cases.
โโโโโโโโโโโโโโ
Kaggle Datasets are often too perfect for real-world scenarios.
I'm about to share a method for real-life data analysis.
You see โฆ
โฆ most of the time, a data analyst cleans and transforms data.
So โฆ letโs practice that.
How?
Well โฆ you can use ChatGPT.
Just write this prompt:
Nowโฆ
Download the dataset and start your analysis.
You'll see that, most of the timeโฆ
โฆ numbers donโt match.
There are no patterns.
Data is incorrect and doesnโt make sense.
And thatโs good.
Now you know what a data analyst deals with.
Your job is to make sense of that dataset.
To create a story that justifies the numbers.
This is how you can mimic real-life work using A.I.
I'm about to share a method for real-life data analysis.
You see โฆ
โฆ most of the time, a data analyst cleans and transforms data.
So โฆ letโs practice that.
How?
Well โฆ you can use ChatGPT.
Just write this prompt:
Create a downloadable CSV dataset of 10,000 rows of financial credit card transactions with 10 columns of customer data so I can perform some data analysis to segment customers.Nowโฆ
Download the dataset and start your analysis.
You'll see that, most of the timeโฆ
โฆ numbers donโt match.
There are no patterns.
Data is incorrect and doesnโt make sense.
And thatโs good.
Now you know what a data analyst deals with.
Your job is to make sense of that dataset.
To create a story that justifies the numbers.
This is how you can mimic real-life work using A.I.
๐5
๐ ๐ถ๐ฐ๐ฟ๐ผ๐๐ผ๐ณ๐ ๐๐ฅ๐๐ ๐๐ฒ๐ฟ๐๐ถ๐ณ๐ถ๐ฐ๐ฎ๐๐ถ๐ผ๐ป ๐๐ผ๐๐ฟ๐๐ฒ๐๐
Whether youโre a student, fresher, or professional looking to upskill โ Microsoft has dropped a series of completely free courses to get you started.
Learn SQL ,Power BI & More In 2025
๐๐ถ๐ป๐ธ:-๐
https://pdlink.in/42FxnyM
Enroll For FREE & Get Certified ๐
Whether youโre a student, fresher, or professional looking to upskill โ Microsoft has dropped a series of completely free courses to get you started.
Learn SQL ,Power BI & More In 2025
๐๐ถ๐ป๐ธ:-๐
https://pdlink.in/42FxnyM
Enroll For FREE & Get Certified ๐
๐1
A-Z of essential data science concepts
A: Algorithm - A set of rules or instructions for solving a problem or completing a task.
B: Big Data - Large and complex datasets that traditional data processing applications are unable to handle efficiently.
C: Classification - A type of machine learning task that involves assigning labels to instances based on their characteristics.
D: Data Mining - The process of discovering patterns and extracting useful information from large datasets.
E: Ensemble Learning - A machine learning technique that combines multiple models to improve predictive performance.
F: Feature Engineering - The process of selecting, extracting, and transforming features from raw data to improve model performance.
G: Gradient Descent - An optimization algorithm used to minimize the error of a model by adjusting its parameters iteratively.
H: Hypothesis Testing - A statistical method used to make inferences about a population based on sample data.
I: Imputation - The process of replacing missing values in a dataset with estimated values.
J: Joint Probability - The probability of the intersection of two or more events occurring simultaneously.
K: K-Means Clustering - A popular unsupervised machine learning algorithm used for clustering data points into groups.
L: Logistic Regression - A statistical model used for binary classification tasks.
M: Machine Learning - A subset of artificial intelligence that enables systems to learn from data and improve performance over time.
N: Neural Network - A computer system inspired by the structure of the human brain, used for various machine learning tasks.
O: Outlier Detection - The process of identifying observations in a dataset that significantly deviate from the rest of the data points.
P: Precision and Recall - Evaluation metrics used to assess the performance of classification models.
Q: Quantitative Analysis - The process of using mathematical and statistical methods to analyze and interpret data.
R: Regression Analysis - A statistical technique used to model the relationship between a dependent variable and one or more independent variables.
S: Support Vector Machine - A supervised machine learning algorithm used for classification and regression tasks.
T: Time Series Analysis - The study of data collected over time to detect patterns, trends, and seasonal variations.
U: Unsupervised Learning - Machine learning techniques used to identify patterns and relationships in data without labeled outcomes.
V: Validation - The process of assessing the performance and generalization of a machine learning model using independent datasets.
W: Weka - A popular open-source software tool used for data mining and machine learning tasks.
X: XGBoost - An optimized implementation of gradient boosting that is widely used for classification and regression tasks.
Y: Yarn - A resource manager used in Apache Hadoop for managing resources across distributed clusters.
Z: Zero-Inflated Model - A statistical model used to analyze data with excess zeros, commonly found in count data.
Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624
Credits: https://t.iss.one/datasciencefun
Like if you need similar content ๐๐
Hope this helps you ๐
A: Algorithm - A set of rules or instructions for solving a problem or completing a task.
B: Big Data - Large and complex datasets that traditional data processing applications are unable to handle efficiently.
C: Classification - A type of machine learning task that involves assigning labels to instances based on their characteristics.
D: Data Mining - The process of discovering patterns and extracting useful information from large datasets.
E: Ensemble Learning - A machine learning technique that combines multiple models to improve predictive performance.
F: Feature Engineering - The process of selecting, extracting, and transforming features from raw data to improve model performance.
G: Gradient Descent - An optimization algorithm used to minimize the error of a model by adjusting its parameters iteratively.
H: Hypothesis Testing - A statistical method used to make inferences about a population based on sample data.
I: Imputation - The process of replacing missing values in a dataset with estimated values.
J: Joint Probability - The probability of the intersection of two or more events occurring simultaneously.
K: K-Means Clustering - A popular unsupervised machine learning algorithm used for clustering data points into groups.
L: Logistic Regression - A statistical model used for binary classification tasks.
M: Machine Learning - A subset of artificial intelligence that enables systems to learn from data and improve performance over time.
N: Neural Network - A computer system inspired by the structure of the human brain, used for various machine learning tasks.
O: Outlier Detection - The process of identifying observations in a dataset that significantly deviate from the rest of the data points.
P: Precision and Recall - Evaluation metrics used to assess the performance of classification models.
Q: Quantitative Analysis - The process of using mathematical and statistical methods to analyze and interpret data.
R: Regression Analysis - A statistical technique used to model the relationship between a dependent variable and one or more independent variables.
S: Support Vector Machine - A supervised machine learning algorithm used for classification and regression tasks.
T: Time Series Analysis - The study of data collected over time to detect patterns, trends, and seasonal variations.
U: Unsupervised Learning - Machine learning techniques used to identify patterns and relationships in data without labeled outcomes.
V: Validation - The process of assessing the performance and generalization of a machine learning model using independent datasets.
W: Weka - A popular open-source software tool used for data mining and machine learning tasks.
X: XGBoost - An optimized implementation of gradient boosting that is widely used for classification and regression tasks.
Y: Yarn - A resource manager used in Apache Hadoop for managing resources across distributed clusters.
Z: Zero-Inflated Model - A statistical model used to analyze data with excess zeros, commonly found in count data.
Best Data Science & Machine Learning Resources: https://topmate.io/coding/914624
Credits: https://t.iss.one/datasciencefun
Like if you need similar content ๐๐
Hope this helps you ๐
๐1
๐ฏ ๐๐ฟ๐ฒ๐ฒ ๐ง๐๐ฆ ๐๐ผ๐๐ฟ๐๐ฒ๐ ๐๐๐ฒ๐ฟ๐ ๐๐ฟ๐ฒ๐๐ต๐ฒ๐ฟ ๐ ๐๐๐ ๐ง๐ฎ๐ธ๐ฒ ๐๐ผ ๐๐ฒ๐ ๐๐ผ๐ฏ-๐ฅ๐ฒ๐ฎ๐ฑ๐๐
๐ฏ If Youโre a Fresher, These TCS Courses Are a Must-Do๐โ๏ธ
Stepping into the job market can be overwhelmingโbut what if you had certified, expert-backed training that actually prepares you?๐จโ๐โจ๏ธ
๐๐ข๐ง๐ค๐:-
https://pdlink.in/42Nd9Do
Donโt wait. Get certified, get confident, and get closer to landing your first jobโ ๏ธ
๐ฏ If Youโre a Fresher, These TCS Courses Are a Must-Do๐โ๏ธ
Stepping into the job market can be overwhelmingโbut what if you had certified, expert-backed training that actually prepares you?๐จโ๐โจ๏ธ
๐๐ข๐ง๐ค๐:-
https://pdlink.in/42Nd9Do
Donโt wait. Get certified, get confident, and get closer to landing your first jobโ ๏ธ
๐2
โThe Best Public Datasets for Machine Learning and Data Scienceโ by Stacy Stanford
https://datasimplifier.com/best-data-analyst-projects-for-freshers/
https://toolbox.google.com/datasetsearch
https://www.kaggle.com/datasets
https://mlr.cs.umass.edu/ml/
https://www.visualdata.io/
https://guides.library.cmu.edu/machine-learning/datasets
https://www.data.gov/
https://nces.ed.gov/
https://www.ukdataservice.ac.uk/
https://datausa.io/
https://www.cs.toronto.edu/~delve/data/boston/bostonDetail.html
https://www.kaggle.com/xiuchengwang/python-dataset-download
https://www.quandl.com/
https://data.worldbank.org/
https://www.imf.org/en/Data
https://markets.ft.com/data/
https://trends.google.com/trends/?q=google&ctab=0&geo=all&date=all&sort=0
https://www.aeaweb.org/resources/data/us-macro-regional
https://xviewdataset.org/#dataset
https://labelme.csail.mit.edu/Release3.0/browserTools/php/dataset.php
https://image-net.org/
https://cocodataset.org/
https://visualgenome.org/
https://ai.googleblog.com/2016/09/introducing-open-images-dataset.html?m=1
https://vis-www.cs.umass.edu/lfw/
https://vision.stanford.edu/aditya86/ImageNetDogs/
https://web.mit.edu/torralba/www/indoor.html
https://www.cs.jhu.edu/~mdredze/datasets/sentiment/
https://ai.stanford.edu/~amaas/data/sentiment/
https://nlp.stanford.edu/sentiment/code.html
https://help.sentiment140.com/for-students/
https://www.kaggle.com/crowdflower/twitter-airline-sentiment
https://hotpotqa.github.io/
https://www.cs.cmu.edu/~./enron/
https://snap.stanford.edu/data/web-Amazon.html
https://aws.amazon.com/datasets/google-books-ngrams/
https://u.cs.biu.ac.il/~koppel/BlogCorpus.htm
https://code.google.com/archive/p/wiki-links/downloads
https://www.dt.fee.unicamp.br/~tiago/smsspamcollection/
https://www.yelp.com/dataset
https://t.iss.one/DataPortfolio/2
https://archive.ics.uci.edu/ml/datasets/Spambase
https://bdd-data.berkeley.edu/
https://apolloscape.auto/
https://archive.org/details/comma-dataset
https://www.cityscapes-dataset.com/
https://aplicaciones.cimat.mx/Personal/jbhayet/ccsad-dataset
https://www.vision.ee.ethz.ch/~timofter/traffic_signs/
https://cvrr.ucsd.edu/LISA/datasets.html
https://hci.iwr.uni-heidelberg.de/node/6132
https://www.lara.prd.fr/benchmarks/trafficlightsrecognition
https://computing.wpi.edu/dataset.html
https://mimic.physionet.org/
โ Best Telegram channels to get free coding & data science resources
https://t.iss.one/addlist/4q2PYC0pH_VjZDk5
โ Free Courses with Certificate:
https://t.iss.one/free4unow_backup
https://datasimplifier.com/best-data-analyst-projects-for-freshers/
https://toolbox.google.com/datasetsearch
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https://ai.googleblog.com/2016/09/introducing-open-images-dataset.html?m=1
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https://vision.stanford.edu/aditya86/ImageNetDogs/
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https://www.cs.jhu.edu/~mdredze/datasets/sentiment/
https://ai.stanford.edu/~amaas/data/sentiment/
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https://www.kaggle.com/crowdflower/twitter-airline-sentiment
https://hotpotqa.github.io/
https://www.cs.cmu.edu/~./enron/
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https://u.cs.biu.ac.il/~koppel/BlogCorpus.htm
https://code.google.com/archive/p/wiki-links/downloads
https://www.dt.fee.unicamp.br/~tiago/smsspamcollection/
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Top 100+ questions%0A %22Google Data Science Interview%22.pdf
16.7 MB
๐ฏ Top 100+ Google Data Science Interview Questions
๐ Essential Prep Guide for Aspiring Candidates
Google is known for its rigorous data science interview process, which typically follows a hybrid format. Candidates are expected to demonstrate strong programming skills, solid knowledge in statistics and machine learning, and a keen ability to approach problems from a product-oriented perspective.
To succeed, one must be proficient in several critical areas: statistics and probability, SQL and Python programming, product sense, and case study-based analytics.
This curated list features over 100 of the most commonly asked and important questions in Google data science interviews. It serves as a comprehensive resource to help candidates prepare effectively and confidently for the challenge ahead.
๐ Essential Prep Guide for Aspiring Candidates
Google is known for its rigorous data science interview process, which typically follows a hybrid format. Candidates are expected to demonstrate strong programming skills, solid knowledge in statistics and machine learning, and a keen ability to approach problems from a product-oriented perspective.
To succeed, one must be proficient in several critical areas: statistics and probability, SQL and Python programming, product sense, and case study-based analytics.
This curated list features over 100 of the most commonly asked and important questions in Google data science interviews. It serves as a comprehensive resource to help candidates prepare effectively and confidently for the challenge ahead.
#DataScience #GoogleInterview #InterviewPrep #MachineLearning #SQL #Statistics #ProductAnalytics #Python #CareerGrowth
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Feature Scaling is one of the most useful and necessary transformations to perform on a training dataset, since with very few exceptions, ML algorithms do not fit well to datasets with attributes that have very different scales.
Let's talk about it ๐งต
There are 2 very effective techniques to transform all the attributes of a dataset to the same scale, which are:
โช๏ธ Normalization
โช๏ธ Standardization
The 2 techniques perform the same task, but in different ways. Moreover, each one has its strengths and weaknesses.
Normalization (min-max scaling) is very simple: values are shifted and rescaled to be in the range of 0 and 1.
This is achieved by subtracting each value by the min value and dividing the result by the difference between the max and min value.
In contrast, Standardization first subtracts the mean value (so that the values always have zero mean) and then divides the result by the standard deviation (so that the resulting distribution has unit variance).
More about them:
โช๏ธStandardization doesn't frame the data between the range 0-1, which is undesirable for some algorithms.
โช๏ธStandardization is robust to outliers.
โช๏ธNormalization is sensitive to outliers. A very large value may squash the other values in the range 0.0-0.2.
Both algorithms are implemented in the Scikit-learn Python library and are very easy to use. Check below Google Colab code with a toy example, where you can see how each technique works.
https://colab.research.google.com/drive/1DsvTezhnwfS7bPAeHHHHLHzcZTvjBzLc?usp=sharing
Check below spreadsheet, where you can see another example, step by step, of how to normalize and standardize your data.
https://docs.google.com/spreadsheets/d/14GsqJxrulv2CBW_XyNUGoA-f9l-6iKuZLJMcc2_5tZM/edit?usp=drivesdk
Well, the real benefit of feature scaling is when you want to train a model from a dataset with many features (e.g., m > 10) and these features have very different scales (different orders of magnitude). For NN this preprocessing is key.
Enable gradient descent to converge faster
Let's talk about it ๐งต
There are 2 very effective techniques to transform all the attributes of a dataset to the same scale, which are:
โช๏ธ Normalization
โช๏ธ Standardization
The 2 techniques perform the same task, but in different ways. Moreover, each one has its strengths and weaknesses.
Normalization (min-max scaling) is very simple: values are shifted and rescaled to be in the range of 0 and 1.
This is achieved by subtracting each value by the min value and dividing the result by the difference between the max and min value.
In contrast, Standardization first subtracts the mean value (so that the values always have zero mean) and then divides the result by the standard deviation (so that the resulting distribution has unit variance).
More about them:
โช๏ธStandardization doesn't frame the data between the range 0-1, which is undesirable for some algorithms.
โช๏ธStandardization is robust to outliers.
โช๏ธNormalization is sensitive to outliers. A very large value may squash the other values in the range 0.0-0.2.
Both algorithms are implemented in the Scikit-learn Python library and are very easy to use. Check below Google Colab code with a toy example, where you can see how each technique works.
https://colab.research.google.com/drive/1DsvTezhnwfS7bPAeHHHHLHzcZTvjBzLc?usp=sharing
Check below spreadsheet, where you can see another example, step by step, of how to normalize and standardize your data.
https://docs.google.com/spreadsheets/d/14GsqJxrulv2CBW_XyNUGoA-f9l-6iKuZLJMcc2_5tZM/edit?usp=drivesdk
Well, the real benefit of feature scaling is when you want to train a model from a dataset with many features (e.g., m > 10) and these features have very different scales (different orders of magnitude). For NN this preprocessing is key.
Enable gradient descent to converge faster
Google
DS - Feature Scaling.ipynb
Colaboratory notebook
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๐ฆ Inventory Management System โ manage data & UI
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Key Concepts for Data Science Interviews
1. Data Cleaning and Preprocessing: Master techniques for cleaning, transforming, and preparing data for analysis, including handling missing data, outlier detection, data normalization, and feature engineering.
2. Statistics and Probability: Have a solid understanding of descriptive and inferential statistics, including distributions, hypothesis testing, p-values, confidence intervals, and Bayesian probability.
3. Linear Algebra and Calculus: Understand the mathematical foundations of data science, including matrix operations, eigenvalues, derivatives, and gradients, which are essential for algorithms like PCA and gradient descent.
4. Machine Learning Algorithms: Know the fundamentals of machine learning, including supervised and unsupervised learning. Be familiar with key algorithms like linear regression, logistic regression, decision trees, random forests, SVMs, and k-means clustering.
5. Model Evaluation and Validation: Learn how to evaluate model performance using metrics such as accuracy, precision, recall, F1 score, ROC-AUC, and confusion matrices. Understand techniques like cross-validation and overfitting prevention.
6. Feature Engineering: Develop the ability to create meaningful features from raw data that improve model performance. This includes encoding categorical variables, scaling features, and creating interaction terms.
7. Deep Learning: Understand the basics of neural networks and deep learning. Familiarize yourself with architectures like CNNs, RNNs, and frameworks like TensorFlow and PyTorch.
8. Natural Language Processing (NLP): Learn key NLP techniques such as tokenization, stemming, lemmatization, and sentiment analysis. Understand the use of models like BERT, Word2Vec, and LSTM for text data.
9. Big Data Technologies: Gain knowledge of big data frameworks and tools like Hadoop, Spark, and NoSQL databases that are used to process large datasets efficiently.
10. Data Visualization and Storytelling: Develop the ability to create compelling visualizations using tools like Matplotlib, Seaborn, or Tableau. Practice conveying your data findings clearly to both technical and non-technical audiences through visual storytelling.
11. Python and R: Be proficient in Python and R for data manipulation, analysis, and model building. Familiarity with libraries like Pandas, NumPy, Scikit-learn, and tidyverse is essential.
12. Domain Knowledge: Develop a deep understanding of the specific industry or domain you're working in, as this context helps you make more informed decisions during the data analysis and modeling process.
I have curated the best interview resources to crack Data Science Interviews
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Like if you need similar content ๐๐
1. Data Cleaning and Preprocessing: Master techniques for cleaning, transforming, and preparing data for analysis, including handling missing data, outlier detection, data normalization, and feature engineering.
2. Statistics and Probability: Have a solid understanding of descriptive and inferential statistics, including distributions, hypothesis testing, p-values, confidence intervals, and Bayesian probability.
3. Linear Algebra and Calculus: Understand the mathematical foundations of data science, including matrix operations, eigenvalues, derivatives, and gradients, which are essential for algorithms like PCA and gradient descent.
4. Machine Learning Algorithms: Know the fundamentals of machine learning, including supervised and unsupervised learning. Be familiar with key algorithms like linear regression, logistic regression, decision trees, random forests, SVMs, and k-means clustering.
5. Model Evaluation and Validation: Learn how to evaluate model performance using metrics such as accuracy, precision, recall, F1 score, ROC-AUC, and confusion matrices. Understand techniques like cross-validation and overfitting prevention.
6. Feature Engineering: Develop the ability to create meaningful features from raw data that improve model performance. This includes encoding categorical variables, scaling features, and creating interaction terms.
7. Deep Learning: Understand the basics of neural networks and deep learning. Familiarize yourself with architectures like CNNs, RNNs, and frameworks like TensorFlow and PyTorch.
8. Natural Language Processing (NLP): Learn key NLP techniques such as tokenization, stemming, lemmatization, and sentiment analysis. Understand the use of models like BERT, Word2Vec, and LSTM for text data.
9. Big Data Technologies: Gain knowledge of big data frameworks and tools like Hadoop, Spark, and NoSQL databases that are used to process large datasets efficiently.
10. Data Visualization and Storytelling: Develop the ability to create compelling visualizations using tools like Matplotlib, Seaborn, or Tableau. Practice conveying your data findings clearly to both technical and non-technical audiences through visual storytelling.
11. Python and R: Be proficient in Python and R for data manipulation, analysis, and model building. Familiarity with libraries like Pandas, NumPy, Scikit-learn, and tidyverse is essential.
12. Domain Knowledge: Develop a deep understanding of the specific industry or domain you're working in, as this context helps you make more informed decisions during the data analysis and modeling process.
I have curated the best interview resources to crack Data Science Interviews
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https://whatsapp.com/channel/0029Va4QUHa6rsQjhITHK82y
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