Posts

Play with Chroma DB to understand how vector databases work

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Imagine searching through millions of documents and finding exactly what you need, not because of matching keywords, but because the system understands the meaning behind your query. This is the power of vector databases, and ChromaDB , a lightweight open-source vector database, makes this capability accessible to developers, offering an intuitive API for embedding storage and similarity search operations. Whether you're building a smart search engine or implementing recommendation systems, understanding vector databases is becoming increasingly crucial for modern development. Reference: Getting Started with ChromaDB Semantic Search Semantic search goes beyond traditional keyword matching by understanding the meaning and context of search queries. Instead of looking for exact word matches, it finds content that is conceptually similar to the search query. ChromaDB makes implementing semantic search straightforward by handling the complex process of converting text into m...

Efron's Dice: Where Mathematics Beats Luck

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During a Friday meeting with friends, I pulled out four inconspicuous dice from my pocket. With a mysterious smile, I asked if anyone wanted to play a simple game. Robert, known in our group as a lucky person, immediately took up the challenge. "The rules are simple," I said. "Whoever rolls more pips wins. To keep it fair, choose your die first." Robert confidently chose one of the dice, and I calmly took another from the remaining ones. We rolled several times. To everyone's surprise, I consistently rolled higher numbers. "Would you like to try with a different die?" I innocently suggested. "You can change to any of the remaining ones at any time." Robert, feeling that luck had abandoned him, eagerly took up the offer. I also reached for a different die. To his growing frustration, the situation repeated itself. He changed dice several more times, trying all possible combinations, and I picked a different one to pair each time. My ...

Transform Speech into Text with Python: A Versatile Speech Recognition Tool

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Words flow naturally when we speak, yet capturing them in text has always been a challenge. Break free from this limitation with a versatile Python-based speech-to-text converter that works as naturally as conversation itself. Whether you're creating content, making audio more accessible, or processing recordings, this tool seamlessly converts speech to text from both live microphone input and MP3 files in 10 different languages. Let's explore how this simple yet powerful solution can transform your spoken words into clean, editable text. Key Features Dual Input Methods : Record directly from your microphone or convert existing MP3 files Multi-language Support : Works with 10 major languages including English, Spanish, French, and Chinese Real-time Processing : Immediate transcription of spoken words Smart Noise Handling : Automatic ambient noise detection and adjustment User-friendly CLI : Simple command-line interface with clear options Clean Output : G...

Building a Multilingual Text-to-Speech Tool with Python and gTTS

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Text-to-speech (TTS) technology has become increasingly important in our digital world, serving various purposes from accessibility improvements to content consumption on the go. Today, I'll walk you through a practical Python command-line tool that converts text files into speech in multiple languages using Google's Text-to-Speech (gTTS) service. Key Features Support for 15 languages including English, Spanish, French, German, and more Simple command-line interface Handles UTF-8 encoded text files Generates high-quality MP3 audio files Easy installation and setup Technical Implementation The tool is built with Python and uses several key components: gTTS Library : The core functionality relies on Google's Text-to-Speech service through the gTTS Python package, which handles the text-to-speech conversion and supports multiple languages. Command Line Interface : Built using Python's argparse module, providing a user-friendly interface ...

Schematy rozwiązywania równań różniczkowych [Polish]

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Zamieściłem tu schematy rozwiązywania równań różniczkowych. Do korzystania z nich wymagana jest znajomość rachunku różniczkowego i całkowego. Informacje ogólne Rzędy równań różniczkowych: I rzędu - zależność pomiędzy pochodną funkcji, samą funkcją i jej argumentem II rzędu - występuje także druga pochodna, np. \( x''=ax \) (wyższe rzędy) - ANALOGICZNIE Schematy Lista schematów: Równania różniczkowe zwyczajne Równania o zmiennych rozdzielonych równanie x'=p(t) równanie x'=p(t)x przypadek ogólny: x'=p(t)q(x) Równania różniczkowe liniowe I rzędu Jednorodne Niejednorodne II rzędu O stałych współczynnikach Jednorodne Niejednorodne ...

Vibrating string equation (without damping)

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Vibrating string without damping is represented by the following differential equation: $$ \begin{cases} \begin{array}{l@{\ }l@{\ }l} \frac{{{\partial ^2}u}}{{\partial {t^2}}} = {a^2}\frac{{{\partial ^2}u}}{{\partial {x^2}}} , & \hspace{0.25in} 0 \leqslant x \leqslant L , 0 \leqslant t \leqslant \infty , & \hspace{0.25in} \text{string equation} ; \\ u\left( {0,t} \right) = u\left( {L,t} \right) = 0 , & \hspace{0.25in} 0 \leqslant t \leqslant \infty , & \hspace{0.25in} \text{boundary conditions} ; \\ u\left( {x,0} \right) = f\left( x \right) , \frac{{\partial u}}{{\partial t}}\left( {x,0} \right) = 0 , & \hspace{0.25in} 0 \leqslant x \leqslant L , & \hspace{0.25in} \text{initial conditions}; \end{array} \end{cases} \tag{1} $$ Splitting the string equation into two coupled equations We need to transform the equation: $$ \frac{{{\partial ^2}u}}{{\partial {t^2}}} = {a^2}\frac{{{\partial ^2}u}}{{\parti...

PyCharm - useful shortcuts

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Here are listed useful PyCharm shortcuts for Linux (Ubuntu), which I use very often. If you have some other favourite shortcuts, please put it in a comment. Find action Ctrl + Shift + A - find action View Alt + 1 - toggle tool window Project Alt + 7 - toggle tool window Structure Navigation Ctrl + MOUSE LB CLICK - go to clicked object definition / occurences Ctrl + Shift + RIGHT (Linux/Ubuntu) - navigate forward Ctrl + Alt + RIGHT (other OS) Ctrl + Shift + LEFT (Linux/Ubuntu) - navigate backwards Ctrl + Alt + LEFT (other OS) Ctrl + G - go to line Ctrl + N - finds a class by name Ctrl + Shift + N - finds a file by name or path Alt + RIGHT, Alt + LEFT - switch between tabs Alt + UP, Alt + DOWN - jump between functions in code Search / replace Ctrl + F - find string/regexp in file Ctrl + L - move to next occurrence Ctrl + Shift + L - move to previous occurrence ...