metrics

MetricFlow allows you to define, build, and maintain metrics in code

Welcome to MetricFlow MetricFlow is a computational framework for building and maintaining consistent metric logic. The name comes from the approach taken to generate metrics. Using the user-defined semantic model, a query is first compiled into a metric dataflow plan. The plan is then converted to an abstract SQL object model, optimized, then rendered to engine-specific SQL. MetricFlow provides a set of abstractions that help you construct complicated logic and aggregate metrics to a range of granularities. As a developer […]

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PNG

Inject arbitrary data into PNGs

Inject arbitrary data into PNGs, without breaking the PNG spec. For technical details on how this works, and outdated Python 2 code, read this blogpost. original from 2016 How to use Listing PNG chunks ~ ./punk.py list source.png Chunk IHDR, 13 bytes Chunk IDAT, 226876 bytes Chunk IEND, 0 bytes Injecting data

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Python

Speeding up software with faster hardware: tradeoffs and alternatives

If you’re writing software to process data, you will often hit performance problems: batch jobs that run too slowly, or use too much memory. One potential solution is purchasing better hardware. With cloud computing, switching to a computer with more cores, or adding more RAM, can be done in a few minutes, or even just a few seconds. But as with any solution, there are tradeoffs involved. If your first solution to any performance problem is spending more money on […]

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Render

A modern pure-Python library for reading PDF files

A modern pure-Python library for reading PDF files. The goal is to have a modern interface to handle PDF files which is consistent with itself and typical Python syntax. The library should be Python-only (hence no C-extensions), but allow to change the backend. Similar in concept to matplotlib backends and Keras backends. The default backend could be PyPDF2. Possible other backends could be PyMuPDF (using MuPDF) and PikePDF (using QPDF). WARNING: This library is UNSTABLE at the moment! Expect many […]

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Algorithms

An online application powered by machine learning algorithms

About GIA Greenstocks Investment Advisor (GIA) is an online application powered by machine learning algorithms, that facilitates reliable stock market investments in companies that implement a high Environmental, Social and Governance (ESG) policy. What is ESG Investing Investors interested in ESG are increasingly applying these non-financial factors as part of their analysis process to identify material risks and growth opportunities. ESG metrics are not commonly part of mandatory financial reporting, though companies are increasingly making disclosures in their annual report […]

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StarkNet

Private Prediction Market for Starknet

Basic Idea A and B can enter into a bet by staking some token(ERC20-compliant) – lets say they bet on the price of ETH after 1 month, so we setup a callback with an oracle asking it to give the results to the protocol after the stipulated time, and whoever wins gets to keep the full staked amount – this can then be extended to arbitrary number of participants – we can also create an NFT to represent the position […]

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Telegram

Search Telegram chat history even if you’re using CJK

A telegram Bot that can search for CJK and other languages. Telegram has bad search experience for CJK languages because those languages are not separated by spacing. Bug issues were submitted years ago but never fixed. I’m not planning to be sitting ducks, so I create a bot that can search for CJK languages. support text message support caption inside photo and document support chat username Telegram allows multiple sessions, maximum is 10 clients. We create a hidden session We […]

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Framework

An open source framework for programming photonic quantum computers

Through a simple object-oriented python API, Perceval provides tools for building a circuit with linear optics components, defining single-photon source, manipulating Fock states, running simulation, reproducing published experimental papers and experiment new generation of quantum algorithms. It aims to be a companion tool for developing photonics circuits while simulating on their design, modeling their ideal and real-life behaviour, and proposing a normalized interface to control them through the concept of backends. Perceval has been developed as a complete toolkit for […]

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