ramikrispin, to datascience
@ramikrispin@mstdn.social avatar

(1/2) Google released a new foundation model for time series forecasting 🚀

The TimeFM (Time Series Foundation Model) is a foundation model for time series forecasting applications. This pre-trained model was developed by the Google Research team. It joins the recent trend of leveraging foundation models for time series forecasting, which includes Salesforce's Moirai and Amazon's Chronos.

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ramikrispin, to machinelearning
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(1/2) New release for skforecast 🎉

Version 0.12.0 of the skforecast Python library for time series forecasting with regression models was released this week. The release includes new features, updates for existing ones, and bug fixes. 🧵👇🏼

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ramikrispin, to python
@ramikrispin@mstdn.social avatar

(1/3) New Release to NeuralForecast 🚀

Version 1.7.1 of the NeuralForecast library was released last month by Nixtla. The NeuralForecast library, as the name implies, provides a neural network framework for time series forecasting. 🧵👇🏼

ramikrispin, to python
@ramikrispin@mstdn.social avatar

(1/2) Moirai - Salesforce's Foundation Forecasting Model 🚀

Salesforce recently released Moirari - a new 🐍 library with a foundation model for time series forecasting applications. According to the release blog - the model comes with universal forecasting capabilities and can handle multiple scenarios and different frequencies.

ramikrispin, to datascience
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(1/4) Chronos - Amazon LLM for Forecasting 🚀👇🏼

Yesterday, Amazon released a new open-source project, Chronos - a family of pre-trained time series forecasting models based on language model architectures.

🧶🧵👇🏼

Image credit: Blog post

ramikrispin, to datascience
@ramikrispin@mstdn.social avatar

(1/2) Applied Time Series Analysis Course ❤️

If you are looking to learn the foundation of time series analysis and forecasting, I recommend checking the Applied Time Series Analysis course from the University of Washington. The course by Prof Eli Holmes, Prof. Eric Ward, and Prof. Mark Scheuerell focuses on the foundation of time series analysis with applications for environmental science.

ekis, to math
@ekis@mastodon.social avatar

Soo been obsessing over #math matrix & #graph theory

Thinking options for most efficient #tech application using concept of a merkle tree for a matrix; still requiring efficient merkle #matrix verification (tree=type of graph)

Saw merkle field= #hash each layer, merging into node

merkle tree isnt only classico binary #tree

But low-res; so horizontal+vertical row hashing=faster & then found A sci-article; just 1 on subject & 0 libs

Goal= #programming #timeseries #3D (+) merkle matrix library

Expanding on the Merkle Field, instead of just dealing merging horizontal rows, we merge vertical rows and then you have two routes to verification, and still few verification but still not very resolute. In order to verify a single block without the row you are required to do both verification steps. Or wait untill you have a horizontal row or vertical row and simply do one verification step.
The real magic is when you take the binary Merkle Trees to represent vertical and horizontal rows, and then merging those two trees into the root node for a single merkle matrix. Now what I think would be interesting is both using 4, resulting in 4 roots, and you only need a single 1 to validate any block quickly within the matrix. And then different members of say a network could have different trees to offer for validation. Most importantly, I want to take this and add an extra dimensions (probably more than 1), and I know about verkle trees but I don't want a simple tree, I want a sparse matrix ideally, or a 3D matrix, using at least 3 trees, combining into a single root node. This could be used for verifiable time series data. What I plan to do is store essentially a mutable torrent inside each block in the matrix. And changes are represented over time as each "stack" is added to the matrix to make it 3D (or more)

ramikrispin, to python
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(1/3)Modeling Short Time Series with Prior Knowledge in PyMC 🚀

Yesterday, I shared an article by Tim Radtke about forecasting insufficient time series data with a Bayesian approach using R. Here is the Python version 🧵👇🏼

ramikrispin, to datascience
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(1/2) Modeling Short Time Series with Prior Knowledge

When modeling time series data, you may find yourself with insufficient data. Insufficient data in time series would typically be defined as less than one seasonal cycle. This would challenge us to understand whether some events are driven by seasonality or other reasons, such as one-time events, outliers, etc.

#timeseries #rstats #forecasting #Bayesian #DataScience

stevensanderson, to random
@stevensanderson@mstdn.social avatar
ramikrispin, to machinelearning
@ramikrispin@mstdn.social avatar

(1/3) My talk from the Øredev 2023 conference about forecasting at scale is now available 👇🏼

📽️: https://www.youtube.com/watch?v=pUvVfO0_Kmc

#timeseries #forecasting #rstats #machinelearning #DataScience #oredev

stevensanderson, to random
@stevensanderson@mstdn.social avatar
ramikrispin, to datascience
@ramikrispin@mstdn.social avatar

(5/7)
This year, I also retired two major open-source projects 👋🏼:
➡️ TSstudio - my first open-source project ❤️, R package for descriptive and predictive analysis of time series data 👇🏼
🔗 https://github.com/RamiKrispin/TSstudio
➡️ Coronavirus - R package provides a tidy format for the COVID-19 dataset collected by the Center for Systems Science and Engineering (CSSE) at Johns Hopkins University.
🔗 https://github.com/RamiKrispin/coronavirus

cheng, to machinelearning
@cheng@masto.ai avatar

A nice survey paper (led by @bendfulcher) about ways to measure similarity/distance between a pair of multivariate . It explains an organising structure around the different bits of literature that compares time series.


https://www.nature.com/articles/s43588-023-00519-x

ramikrispin, to python
@ramikrispin@mstdn.social avatar

(1/2) Timetk for Python 🚀🚀🚀

The timetk, one of the main R packages for time series analysis and forecasting ❤️, by Matt Dancho, is now available in Python 🐍. The package provides a variety of tools for working with time series data and analyzing it. The Python version leverages pandas for processing time series data and plotly for visualization.

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petroniocandido, to random Portuguese
@petroniocandido@mastodon.social avatar

Acaba de ser publicado o artigo "Multi-output time series forecasting with randomized multivariate Fuzzy Cognitive Maps" no periódico international Chaos, Solitons, and Fractals. Esse é um trabalho de autoria de Omid Orang, minha e de Frederico Gadelha e apresenta de um novo método baseado em redes neurais aleatorizadas (Reservoir Computing) e conjuntos fuzzy para previsão multivariada de séries temporais.

O trabalho está disponível no endereço https://doi.org/10.1016/j.chaos.2023.114077

ramikrispin, to datascience
@ramikrispin@mstdn.social avatar

My R Shinylive app is now on Github Pages. It was simple and straightforward to deploy the app on Pages, a tutorial to follow...

Please be patient while loading 😝

Pros:

  • Serverless
  • Easy to deploy as a website on Github Pages (and similar)

Cons:

  • Slow load time
  • Still experimental

https://ramikrispin.github.io/shinylive-r/

ramikrispin, to datascience
@ramikrispin@mstdn.social avatar

I spent last night to build this fun Shinylive app - Forecasting Sandbox 😎

The app provides a simple sandbox for three simple forecasting models - Linear regression, ARIMA, and Holt-Winters, and it entirely runs on the browser!

I am planning to deploy it to Github Actions and create a tutorial (WIP) 👇🏼

https://github.com/RamiKrispin/shinylive-r

video/mp4

mrutzinger, to random German

Quantifying slope movements: Tree trunk tracking using long-range stationary 4D laser scanning point clouds

nobodyinperson, to python
@nobodyinperson@fosstodon.org avatar

🤯 Holy sh*t, is such a crazy powerful :python: package, look how much you can get out of a single one-line expression and some fancy decorators and wrappers.

This is from the development version of PARMESAN¹, a Python package for I'm working on @umphy and that I plan to submit to @joss in near future.

¹https://gitlab.com/tue-umphy/software/parmesan

(🖱️ click to expand the large image)

ramikrispin, to opensource
@ramikrispin@mstdn.social avatar

(1/3) Retiring open-source project 🧵 ⬇️

The TSstudio package is one of the first projects I did. On my way to holiday break on December 2017, I was bored during a 12 hours flight and decided to package a few common functions I love to use for time series data. A few days after, the first version was on CRAN. In the following year, I spent many hours enjoying developing additional functionalities and tools for analysis and

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ramikrispin, to random
@ramikrispin@mstdn.social avatar

(1/2) After returning last week to work on my book, this weekend continue to work on the last dataset I will package for the book - the hourly electricity generation in New York by sub-regions.

ramikrispin, to python
@ramikrispin@mstdn.social avatar

Introduction to forecasting with ARIMA and seasonal ARIMA with Python 🚀👇🏼

This short tutorial by Joaquín Amat Rodrigo and Javier Escobar Ortiz provides an introduction to forecasting with ARIMA models using Python 🐍. This includes using different flavors of ARIMA methods from the statsmodels, pmdarima, skforecast, and statsForecast libraries.

📖🔗: https://cienciadedatos.net/documentos/py51-arima-sarimax-models-python.html

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ramikrispin, to datascience
@ramikrispin@mstdn.social avatar

Forecasting Time Series with Gradient Boosting ❤️

The skforecast Python 🐍 library provides ML applications for time series forecasting using different regression models from the scikit-learn library. Here is a tutorial by Joaquín Amat Rodrigo and Javier Escobar Ortiz for time series forecasting with the skforecast using XGBoost, LightGBM, Scikit-learn, and CatBoost models 🚀.

📖🔗: https://cienciadedatos.net/documentos/py39-forecasting-time-series-with-skforecast-xgboost-lightgbm-catboost

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SenseException, to random German
@SenseException@phpc.social avatar

If you need to brush the dust off your way of using a db query language, then try #PromQL. It has some similarities to things you know but also is handled differently. #prometheus #timeseries

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