Tech Psyche . Updates . Tech Tips & Tricks . Programming , Tech Course
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Sharing updates & resources on Programming & Coding, Cryptocurrency, Blockchain, Web 3, Python, Data Science, Data Analysis, Java, Web Dev, AI, App Dev, ML, Cyber Security & Hacking & More

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Complete Data Science Roadmap πŸ‘‡πŸ‘‡

1. Introduction to Data Science
- Overview and Importance
- Data Science Lifecycle
- Key Roles (Data Scientist, Analyst, Engineer)

2. Mathematics and Statistics
- Probability and Distributions
- Descriptive/Inferential Statistics
- Hypothesis Testing
- Linear Algebra and Calculus Basics

3. Programming Languages
- Python: NumPy, Pandas, Matplotlib
- R: dplyr, ggplot2
- SQL: Joins, Aggregations, CRUD

4. Data Collection & Preprocessing
- Data Cleaning and Wrangling
- Handling Missing Data
- Feature Engineering

5. Exploratory Data Analysis (EDA)
- Summary Statistics
- Data Visualization (Histograms, Box Plots, Correlation)

6. Machine Learning
- Supervised (Linear/Logistic Regression, Decision Trees)
- Unsupervised (K-Means, PCA)
- Model Selection and Cross-Validation

7. Advanced Machine Learning
- SVM, Random Forests, Boosting
- Neural Networks Basics

8. Deep Learning
- Neural Networks Architecture
- CNNs for Image Data
- RNNs for Sequential Data

9. Natural Language Processing (NLP)
- Text Preprocessing
- Sentiment Analysis
- Word Embeddings (Word2Vec)

10. Data Visualization & Storytelling
- Dashboards (Tableau, Power BI)
- Telling Stories with Data

11. Model Deployment
- Deploy with Flask or Django
- Monitoring and Retraining Models

12. Big Data & Cloud
- Introduction to Hadoop, Spark
- Cloud Tools (AWS, Google Cloud)

13. Data Engineering Basics
- ETL Pipelines
- Data Warehousing (Redshift, BigQuery)

14. Ethics in Data Science
- Ethical Data Usage
- Bias in AI Models

15. Tools for Data Science
- Jupyter, Git, Docker

16. Career Path & Certifications
- Building a Data Science Portfolio

Learn DatA & AI: https://365datascience.pxf.io/Z6KDgk

Free Notes & Books to learn Data Science: https://t.me/datascienceresourcestp

Python Project Ideas: https://t.me/pythonresourcestp/74

Best Resources to learn Data Science πŸ‘‡πŸ‘‡

Python Tutorial (http://pythontutorial.net/)

Data Science Course (http://kaggle.com/learn) by Kaggle

Machine Learning Course (http://developers.google.com/machine-learning/crash-course) by Google

Best Data Science & Machine Learning Resources (https://topmate.io/learning_resources/1406977)

Interview Process for Data Science Role at Amazon (https://t.me/datascienceresourcestp/85)

Python Interview Resources (https://t.me/pythonresourcestp/40)

Join for more free courses
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ENJOY LEARNINGπŸ‘πŸ‘
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Struggling with Machine Learning algorithms? πŸ€–

Then you better stay with me! πŸ€“

We are going back to the basics to simplify ML algorithms.
... today's turn is Logistic Regression! πŸ‘‡πŸ»

1️⃣ π—Ÿπ—’π—šπ—œπ—¦π—§π—œπ—– π—₯π—˜π—šπ—₯π—˜π—¦π—¦π—œπ—’π—‘
It is a binary classification model used to classify our input data into two main categories.

It can be extended to multiple classifications... but today we'll focus on a binary one.

Also known as Simple Logistic Regression.

2️⃣ 𝗛𝗒π—ͺ 𝗧𝗒 π—–π—’π— π—£π—¨π—§π—˜ π—œπ—§?
The Sigmoid Function is our mathematical wand, turning numbers into neat probabilities between 0 and 1.

It's what makes Logistic Regression tick, giving us a clear 'probabilistic' picture.

3️⃣ 𝗛𝗒π—ͺ 𝗧𝗒 π——π—˜π—™π—œπ—‘π—˜ π—§π—›π—˜ π—•π—˜π—¦π—§ π—™π—œπ—§?
For every parametric ML algorithm, we need a LOSS FUNCTION.

It is our map to find our optimal solution or global minimum.

(hoping there is one! πŸ˜‰)

✚ 𝗕𝗒𝗑𝗨𝗦 - FROM LINEAR TO LOGISTIC REGRESSION
To obtain the sigmoid function, we can derive it from the Linear Regression equation.

Handling Imbalanced Data in ML: https://t.me/mlresourcestp/86
πŸ‘1
Websites to Practice Your Coding SkillsπŸ”₯

πŸ“Œ LeetCode
πŸ“Œ HackerRank
πŸ“Œ Topcoder
πŸ“Œ CodeChef
πŸ“Œ CodeWars
πŸ“Œ Exercism
πŸ“Œ Edabit
πŸ“Œ Codingame
πŸ“Œ CodeForces
πŸ“Œ HackerEarth
πŸ“Œ CodeSignal
πŸ“Œ CoderByte
πŸ“Œ SPOJ
πŸ“Œ ProjectEuler

16 Websites to Learn Programming: https://t.me/techpsyche/634
"How AI Leaders Unlock Business Value πŸ’‘πŸš€"

AI isn’t just hypeβ€”it’s transforming businesses! Top-performing companies see AI driving productivity (44%), better decision-making (41%), and improved customer experience (40%). But why do AI leaders succeed where others struggle?

πŸ’‘ They focus on automation, innovation, and data-driven strategies. Meanwhile, companies lagging behind see less impact.

t.me/airesourcestp
Choosing the right cryptocurrency exchange is crucial for a safe and efficient trading experience. Here are some factors to consider:

1. Security:
- Prioritize exchanges with a strong security track record, including features like two-factor authentication (2FA) and cold storage for the majority of funds.

2. Reputation:
- Research the exchange's reputation by reading user reviews, checking online forums, and assessing how long it has been in operation.

3. Supported Cryptocurrencies:
- Ensure the exchange supports the specific cryptocurrencies you want to trade or invest in. Not all exchanges list the same range of coins.

4. Fees:
- Compare trading fees, withdrawal fees, and any other charges. Some exchanges offer fee discounts based on trading volume or membership levels.

5. User Interface:
- Choose an exchange with an intuitive and user-friendly interface, especially if you are a beginner. A clean design can enhance your overall trading experience.

6. Liquidity:
- Higher liquidity generally means better price stability and faster execution of trades. Check the trading volume of the exchange and the specific cryptocurrency pairs you're interested in.

7. Geographic Restrictions:
- Be aware of any geographical restrictions imposed by the exchange. Ensure it operates in your country and complies with local regulations.

8. Regulatory Compliance:
- Verify that the exchange complies with relevant regulations in your jurisdiction. This adds an extra layer of security and legal protection.

9. Customer Support:
- Look for exchanges with responsive customer support. Issues may arise, and having a reliable support system is crucial for quick resolutions.

10. Deposit and Withdrawal Methods:
- Check the available deposit and withdrawal methods. Some exchanges support fiat currency deposits, while others may require you to trade using other cryptocurrencies.

11. Mobile App:
- If you prefer trading on the go, consider whether the exchange offers a mobile app with essential features for convenient trading.

12. Educational Resources:
- Some exchanges provide educational resources and tutorials. This can be beneficial, especially for beginners who want to learn more about trading and cryptocurrencies.

13. Insurance Coverage:
- Verify if the exchange has insurance coverage for potential losses due to hacks or breaches. This can provide an added layer of protection for users.

Always conduct thorough research before choosing an exchange, and consider starting with a smaller investment until you become familiar with the platform. Additionally, regularly review your chosen exchange's security features and stay informed about any updates or changes in policies.

Signs of Bearish Trend in Crypto: https://t.me/techpsyche/739

Non-Recourse Loans in Crypto: https://t.me/techpsyche/756

Funding in Crypto Trading: https://t.me/techpsyche/766

More Resources Here:
https://whatsapp.com/channel/0029VajB00n0LKZ7cSloGR1M

#crypto #web3 #blockchain #finance #stocks
Free PHP Courses for Web Developer πŸ‘¨β€πŸ’»πŸ€©πŸš€

1. Practical PHP: Master the Basics and Code Dynamic Websites

πŸ‘‰ https://www.udemy.com/course/code-dynamic-websites

2. Beginner PHP and MySQL Tutorial

πŸ‘‰ https://www.udemy.com/course/php-mysql-tutorial

3. PHP & MySQL course for absolute beginners | Become a PHP pro

πŸ‘‰ https://www.udemy.com/course/php-mysql-course-for-absolute-beginners

4. PHP For WordPress Development

πŸ‘‰ https://www.udemy.com/course/php-for-wordpress-development

5. PHP tutorial for beginners

πŸ‘‰ https://www.udemy.com/course/php-tutorial-for-beginners-j

6. Free Udemy Courses Here

πŸ‘‰ https://t.me/udemycoursecouponsfree

Follow this WhatsApp Channel for More Resources
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The 2020s could be the decade of billionaires, with a record number reaching 2,755 and a collective wealth of $13.1 trillion (approximately €11 trillion). πŸŒπŸ’°

t.me/techpsyche
10 Must-Have Tools for Web Developers in 2025

βœ… Visual Studio Code – The go-to lightweight and powerful code editor
βœ… Figma – Design UI/UX prototypes and collaborate visually with your team
βœ… Chrome DevTools – Inspect, debug, and optimize performance in real-time
βœ… GitHub – Host your code, collaborate, and manage projects seamlessly
βœ… Postman – Test and manage APIs like a pro
βœ… Tailwind CSS – Build sleek, responsive UIs with utility-first classes
βœ… Vite – Superfast front-end build tool and dev server
βœ… React Developer Tools – Debug React components directly in your browser
βœ… ESLint + Prettier – Keep your code clean, consistent, and error-free
βœ… Netlify – Deploy your front-end apps in seconds with CI/CD integration

React if you're building cool stuff on the web!

9 Baby Steps to Learn Web Development: https://t.me/webdevresourcestp/74

Web Development Resources ⬇️
https://whatsapp.com/channel/0029VahGttK5a24AXAJDjm2R

ENJOY LEARNING πŸ‘πŸ‘
🎨 Here are a few free AI-powered websites that offer photo editing capabilities:

1. Pixlr (https://pixlr.com/): Pixlr is a web-based photo editor that provides a range of AI-powered editing tools. It offers features like automatic background removal, retouching, filters, and more. You can upload your photos directly to the website and edit them using the available tools.

2. Fotor (https://www.fotor.com/): Fotor is an online photo editing platform that uses AI technology to enhance and manipulate images. It offers various editing features such as filters, retouching, collage making, and more. You can upload your photos or work with existing templates available on the website.

3. Photopea (https://www.photopea.com/): Photopea is a free online image editor that supports a wide range of file formats, including PSD (Photoshop) files. While it is not specifically AI-focused, it provides advanced editing tools and features similar to professional photo editing software.

4. BeFunky (https://www.befunky.com/): BeFunky is an online photo editor that offers a range of AI-powered tools for editing and enhancing images. It provides features such as automatic photo retouching, filters, graphic design templates, and more.

5. LunaPic (https://www.lunapic.com/): LunaPic is an online photo editing tool that offers various AI-based editing features. It includes options like AI-powered background removal, effects, filters, animations, and more.

UI vs UX: https://t.me/designresourcestp/60

The Future of UI/UX: https://t.me/designresourcestp/19

WhatsApp Channel:
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10 Rules to upgrade your life:

1. Lift weights
2. Eat real foods
3. Face your fears
4. Positive self-talk
5. Never stop learning
6. Prioritize your sleep
7. Lower your screentime
8. Wake up with gratitude
9. Enjoy the present moment
10. Choose your circle carefully

Growth TipsπŸ‘‡
https://whatsapp.com/channel/0029VasaQtVGehEUFsVWAn3L
Forget Midjourney, It costs $8/M to use

Here are 5 alternatives to you use

1. Bing Image Creator :

Simply type your ideas into Bing which will create one-of-a-kind images from text.

Platforms: Web, Android, iOS

2. Lexica

It acts as a search engine for Stable Diffusion-generated images.

Features:

- Generate 100 images per month for free.

- Effortless to use

Platform: Web

3. Stable Diffusion

It is a free and open-source model.

- Powerful capabilities

- Trained on large dataset

Platforms: Web

4. Adobe Firefly

- In-house text-to-image model by Adobe.

- Has promising features like image expansion and sketch-to-image.

- πŸ’― Free

Platforms: Web

5. Playground AI

- Generate 1000 images per day for free.

- Stable Diffusion and DALLΒ·E are available.

Platforms: Web

13 AI Tools to 10X your Productivity: https://t.me/airesourcestp/94

10 AI Tools to save you Hours: https://t.me/airesourcestp/102

40 Content Creation Tools: https://t.me/airesourcestp/109

ENJOY LEARNING πŸ‘πŸ‘

More Resources Here:
https://whatsapp.com/channel/0029VahGttK5a24AXAJDjm2R
Nowadays there are many Job postings online. Some are real, some will just waste your time with an email that doesn't even exist. But those posting have their own goals.

When applying for Jobs that require you to send application on email, use this tool to check if the email exists.

https://tools.emailhippo.com/

OK means it exists. Bad means it doesn't exist

Don't waste time on fake jobs!πŸ₯²

More Tips:
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Types of stablecoins

Today, we’ll tell you about the three main categories of stablecoins.

β–ͺ️ Stablecoins backed by fiat currencies

These coins are backed by real-life assets, fiat money, or paper money. Two examples of this stablecoin are Tether (USDT) and USD Coin (USDC). The companies issuing these coins own large reserves to support every issued coin; however, Tether has come under intense scrutiny in the past for this specific issue.

β–ͺ️ Stablecoins backed by cryptocurrencies

Some projects are so bold that they’re willing to back their stablecoin with other cryptocurrencies (not real assets or money). For example, a crypto-backed stablecoin with a value of $1 could be supported by a crypto asset worth $2. The logic here is that if the underlying asset’s value were to drop, the stablecoin would still be able to maintain its dollar peg.

The most famous crypto-backed stablecoin is Dai (DAI).

β–ͺ️ Algorithmic stablecoins

Algorithmic stablecoins are not backed by assets or fiat currencies, which makes it difficult to understand why or how they’re stablecoins in the first place. As their name indicates, the value of these coins is controlled by computer algorithms. If the stablecoin’s value is pegged to $1 but rises above $1, the code will automatically mint and release more coins into circulation to lower the stablecoin’s value back to $1. Conversely, if the value drops below $1, the algorithm will removeβ€”or burnβ€”coins from circulation to lift the value back up to $1. The amount of coins you hold will change, but they’ll always reflect the value you own.

Please note: Stablecoins are not dollarsβ€”they’re cryptocurrencies. Even when dealing with stablecoins, investing in crypto carries inherent risksβ€”case in point the collapse of Terra’s algorithmic stablecoin TerraUSD.

Non-Recourse Loans in Crypto: https://t.me/techpsyche/756

Funding in Crypto Trading: https://t.me/techpsyche/766

Choosing the right Exchange: https://t.me/techpsyche/774

More Resources Here:
https://whatsapp.com/channel/0029VajB00n0LKZ7cSloGR1M

#crypto #web3 #blockchain #finance #stocks