Viscioletti

Small tools and practical notes for better decisions.

I build focused browser apps, write about data science, and turn experiments into reusable workflows.

Featured Apps

Focused browser tools, ready to open.

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Screenshot of ink

ink

A minimalist Markdown AI-assisted editor that runs in your browser.

Stable Apps
Screenshot of Prompt Stash

Prompt Stash

Save, organize, and reuse prompts from a local single-page app.

Stable Productivity
Screenshot of AetherDepth

AetherDepth

Create spatial photo parallax, depth masks, standalone pages, and watermarked videos.

Stable Media
Screenshot of Notebook Studio

Notebook Studio

Chat-guided notebook workspace for loading .ipynb files, shaping Python analysis, and connecting local model or WebMCP runtimes.

Experimental Machine Learning

Explore by topic

Most-read articles by topic.

Latest Posts

Recent writing from the lab.

Combining SAS Datasets with MERGE and BY

base-sas
data-manipulation
data-preparation
A compact visual guide to creating a derived dataset, sorting by a key, and combining SAS tables with MERGE and BY.
Aug 5, 2026
Federico Viscioletti

My mental model when coding with AI: Explore, then build

web-development
tools
creative-coding

A two-stage workflow for using AI in software development: first explore the problem space, then hand off to a coding agent to build.

Aug 4, 2026
Federico Viscioletti

Introducing AetherDepth: A 3D Spatial Photo Parallax Generator

web-development
tools
creative-coding

AetherDepth is a small browser app I built to turn flat photos into interactive depth scenes with parallax, matte tools, and export options.

Jul 30, 2026
Federico Viscioletti

Ink Dev Digest: v1.5.0 and the Unified Cogito Feedback Pipeline

ink
open-source
writing-tools
release-notes

A weekly update on Ink comparing v1.4.0 and v1.5.0: automated demo capture, mobile polish, dependency maintenance, and a unified local AI feedback workflow.

Jul 28, 2026
Federico Viscioletti

LambdaRank Explained: How It Improves Learning to Rank

ai
data-science
machine-learning
python

A practical explanation of LambdaRank, how it improves RankNet, why NDCG matters, and how LambdaMART-style ranking models work in XGBoost.

Jul 27, 2026
Federico Viscioletti

How to Handle Missing Data in Machine Learning: A Hands-On Example

machine-learning
data-science
python

Use the UCI Adult Census Income dataset to compare deletion, mode imputation, missing-category handling, missingness indicators, and model-based missing-value strategies in Python.

Jul 24, 2026
Federico Viscioletti

PodCut Studio: Make Your Podcast Sound Finished

audio
podcasting
tools
web-development

A local-first browser studio for recording, tightening, mastering, comparing, and exporting podcast episodes without sending your audio to a server.

Jul 23, 2026
Federico Viscioletti

Ingegnere, engineer e la disciplina nella creatività

productivity
writing

Le parole con cui chiamiamo un mestiere cambiano il modo in cui lo immaginiamo.

Jul 20, 2026
Federico Viscioletti

Signal vs Noise: Machine Learning Metrics Made Interactive

machine-learning
tools
web-development

A one-page web app that makes accuracy, precision, recall, and F1 score intuitive through a hands-on confusion matrix you can poke and prod.

Jul 11, 2026
Federico Viscioletti

Capitalised Expense Calculator: See What Spending Really Costs

personal-finance
tools
web-development

A one-page web app that turns any recurring expense into the pot of capital needed to fund it indefinitely, with UK tax rates estimated from your salary.

Jul 8, 2026
Federico Viscioletti

Quando una filastrocca di mia nonna è diventata una canzone

music
memoria
suno
ai

Un ricordo d’infanzia, la voce di mia nonna e la possibilità, oggi, di ridarle forma con la musica generata da Suno.

Jul 7, 2026
Federico Viscioletti

Temperaturas italianas, 2006–2023: una historia de datos climáticos

data science
python
climate
data visualization

Desde un amplio libro de ISTAT hasta datos ordenados, estimaciones de tendencias y gráficos de matplotlib estilizados para combinar con el blog de las capitales de provincia italianas.

Jul 2, 2026
Federico Viscioletti

Italian Temperatures, 2006–2023: A Climate Data Story

data science
python
climate
data visualization

From a wide ISTAT workbook to tidy data, trend estimates, and matplotlib charts styled to match the blog for Italian provincial capitals.

Jul 2, 2026
Federico Viscioletti

Temperature italiane, 2006-2023: una storia di dati climatici

data science
python
clima
visualizzazione dati

Da un ampio file ISTAT a dati ordinati, stime di tendenza e grafici matplotlib coerenti con lo stile del blog per i capoluoghi di provincia italiani.

Jul 2, 2026
Federico Viscioletti

Températures italiennes, 2006-2023 : une histoire de données climatiques

data science
python
climat
visualisation de données

D’un classeur ISTAT au format large à des données au format long, des estimations de tendance et des graphiques Matplotlib adaptés au style du blog pour les chefs-lieux de province italiens.

Jul 2, 2026
Federico Viscioletti

OpenCode on VPSDime: An AI Coding Agent in My Pocket

ai
opencode
vps
cloudflare
self-hosting

How I made OpenCode available from my phone, so an idea can become a prompt wherever I happen to be.

Jun 30, 2026
Federico Viscioletti

BYOB: Bring Your Own Benchmark

ai
ml
eval

Why generic evals won’t tell you how your AI system behaves in production.

Jun 24, 2026
Federico Viscioletti

ink v1.3.1 — From Writing Companion to Writing Environment

ink
open-source
writing-tools
release-notes

What changed between v1.1.5 and v1.3.1: a Document Linter, a cleaner MCP interface, and proper mobile support.

Jun 21, 2026
Federico Viscioletti

Djerba Island: A Family Adventure That Changed My Mind

travel
tunisia
family
djerba
all-inclusive

How a week in Tunisia transformed my perspective on all-inclusive resorts and provided the perfect escape for a family with young children.

May 12, 2026
Federico Viscioletti

Ink v1.1.5: Meet Cogito, Your Local-First Writing Companion

release
open-source
productivity
tools
markdown
ai

Weekly development digest comparing Ink v1.1.4 and v1.1.5 — introducing Cogito Mode, a local-first AI writing companion that asks questions instead of writing for you.

Apr 3, 2026

Come un lago di notte

poetry

Una poesia notturna tra lago, lupi e stanze da riordinare: rabbia, solitudine, collisioni emotive e il bisogno di trovare un passo nuovo nel buio.

Mar 29, 2026
Federico Viscioletti

ink : une application d’écriture Markdown minimaliste qui vit dans votre navigateur

productivité
outils
markdown
open-source

ink est une application web gratuite, open source et contenue dans un seul fichier, qui permet d’écrire et de gérer des notes Markdown sans distraction — sans installation.

Mar 21, 2026
Federico Viscioletti

ink: una app minimalista de escritura en Markdown que vive en tu navegador

productividad
herramientas
markdown
open-source

ink es una aplicación web gratuita, open-source, en un solo archivo para escribir y gestionar notas en Markdown sin distracciones — sin instalación.

Mar 21, 2026
Federico Viscioletti

Introducing ink: A Minimalist Markdown Writing App That Lives in Your Browser

productivity
tools
markdown
open-source

ink is a free, open-source, single-file webapp for distraction-free markdown writing and note management — no install required.

Mar 21, 2026
Federico Viscioletti

Introduzione a ink: un’app di scrittura in Markdown minimalista che vive nel tuo browser

produttività
strumenti
markdown
open-source

ink è un’app web gratuita, open-source, in un singolo file per scrivere e gestire note in Markdown senza distrazioni — senza installazione.

Mar 21, 2026
Federico Viscioletti

Loudenvielle: Dove la fatica incontra la bellezza

travel
family
pyrenees
france

Un viaggio in famiglia a Loudenvielle, tra la fatica dei giorni con bambini piccoli e la bellezza capace di farsi trovare nei Pirenei.

Feb 24, 2026

Prompt Stash: Your Vault For Great Prompts

web-development
In this post I would to introduce you to a new one-page web app I built: Prompt Stash.
Jul 30, 2025
Federico Viscioletti

Lo Stregatto E SearchGPT: A Match Made In Wonderland

Con questo post inauguro la rubrica di YouTube digest, in cui prendo le live più interessanti che ho visto nelle scorse settimane e cerco di sintetizzare i concetti più…
Jan 16, 2025
Federico Viscioletti

IBM Q2 2024 Earnings Call Summary

stocks
The IBM Q2 2024 earnings call reported strong financial results, demonstrating solid revenue growth, increased profitability, and significant cash-flow generation. Below are…
Jul 25, 2024
Federico Viscioletti

I am loving Gradio, discover it with me

I discovered Gradio by reading a book regarding Kaggle competition, that by the way I totally recommend for whoever wants to improve their skills as a data scientist.
Jul 18, 2024
Federico Viscioletti

Variabili categoriali: come scegliere il metodo di encoding migliore

ai
data-science
python

Guida pratica ai metodi di encoding per variabili categoriali: one-hot, label encoding e alternative per ridurre dimensionalità e overfitting.

Jul 3, 2024
Federico Viscioletti

Autonomous Vehicles and Us: Love/Hate Story

ai
self-driving-cars
Autonomous vehicles have transitioned from being a off vision, to an approaching reality thanks to the integration of AI technology. These self driving cars hold the promise…
Jun 26, 2024
Federico Viscioletti

Learning to Rank Explained: RankNet, LambdaRank, and ListNet

ai
data-science
python

Understand Learning to Rank with practical explanations of pointwise, pairwise, and listwise ranking, plus RankNet, LambdaRank, and ListNet examples.

Jun 12, 2024
Federico Viscioletti

AI Made Easy: Decision Trees for Data Science Success

A beginner-friendly guide to decision trees in artificial intelligence, with examples, core concepts, Python code, and practical data science advice.

Jun 8, 2024
Federico Viscioletti

How to Handle Missing Data in Machine Learning (Part 1)

ai
data-science
In the world of data science, missing data is a common issue that can impact the performance of machine learning models. In data scientist job interviews, I often ask…
May 29, 2024
Federico Viscioletti

Missing Data in Machine Learning: Imputation Examples in Python

ai
data-science

Compare mean, median, KNN, and MICE imputation on the Titanic dataset with Python code, practical trade-offs, and model-ready examples.

May 29, 2024
Federico Viscioletti

3 Proven Real-World Data Science Strategies for Success

ai
data-science
python
As a data scientist, I’ve faced many challenges throughout the years. While working on various projects, I’ve learned some key strategies through trial and error. They have…
May 20, 2024
Federico Viscioletti

Customer Reviews Forensics: An Approach To Stunning Expert Insights

ai
aws
data-science
python
In a competitive market understanding customer reviews is crucial for enhancing product offerings and customer satisfaction. This article outlines an analysis of user…
May 15, 2024
Federico Viscioletti

PrivateGPT sur AWS : La Nouvelle Ère de la Sécurité Documentaire des LLM

ai
aws
data-science
python
Depuis l’introduction des Large Language Models, j’ai été intrigué à l’idée d’expérimenter avec et j’étais préoccupé par leur intégration potentielle dans les processus de…
Apr 30, 2024
Federico Viscioletti

Potenzia i Tuoi Progetti: Costruisci il Futuro con PromptGPT e ChatGPT—Una Rivoluzione nello Sviluppo di Applicazioni

ai
web-development
Questo articolo esplora come ho trasformato un’idea in un’app web in un solo giorno, utilizzando HTML, CSS e JavaScript. Scopri come ChatGPT semplifica la creazione di app…
Apr 25, 2024
Federico Viscioletti

How Amazon Bedrock improved speed in LLM testing

ai
aws
python
This article is about Amazon Bedrock and its value proposition in the LLM arena. Using this tool, I tested different LLMs for a text classification task.
Apr 21, 2024
Federico Viscioletti

Empower Your Projects: Building the Future with ChatGPT’s PromptGPT—A Breakthrough in App Development

ai
web-development
This article explores how I turned an idea into a web app in one day, using HTML, CSS, and JavaScript. Discover how ChatGPT streamlines making web apps, making easier web…
Apr 18, 2024
Federico Viscioletti

Elevate Data Analysis: The Ultimate Pandas Guide to Conditional Columns

data-science
python
In this article, discover an easy Pandas trick: Create conditional columns. You can create new columns in your DataFrame using this trick. Conditions applied to existing…
Apr 3, 2024
Federico Viscioletti

How to handle pull requests in git and GitHub

data-science
git
python

What a pull request is in Git and GitHub, how pull requests work, and how data science teams can open, review, and merge them well.

Mar 30, 2024
Federico Viscioletti

Peak Performance Modeling: Harnessing Bagging and Boosting for Superior Results

ai
data-science
python
In the world of machine learning, two key ensemble techniques stand out. They can improve model performance. They are: bagging and boosting. But how do you decide which one…
Jan 31, 2024
Federico Viscioletti

Decision Trees in a Nutshell: A ‘Statistics in Pills’ Perspective

ai
data-science
Welcome to “Statistics in Pills.” We simplify complex machine learning concepts into bite-sized, easy-to-understand insights. Today’s topic is the fascinating Decision Trees…
Jan 4, 2024
Federico Viscioletti

Decoding Neural Networks: AI’s Fascinating Mimicry of the Human Brain

ai
data-science
Welcome to “Statistics in Pills.” This series explains complex data science and machine learning concepts. Today, we’re diving into the intriguing world of Neural Networks.…
Dec 29, 2023
Federico Viscioletti

Python Analysis Made Easy: ChatGPT’s Noteable Plugin VS Code Interpreter

ai
Jupyter Notebooks are important for data science. They help with analyzing, visualizing, and developing algorithms. Data scientists need to manage notebooks well to explore…
Nov 29, 2023
Federico Viscioletti

How to Choose the Best Categorical Encoding Method

data-science
python
aka do not one-hot encode everything.
Oct 14, 2023
Federico Viscioletti

Data Science Teamwork Made Easy with Git: A Step-by-Step Guide

git
In this article I will go through the steps to successfully work as a team on a shared project by using git.
Sep 2, 2023
Federico Viscioletti

Code Snippets: Python - The Magic Of The get() Method And Default Argument Unveiled

python
In this article, we will discover how to use Python get() method and how to give a default value, if the key is not present in the dictionary.
Jun 22, 2023
Federico Viscioletti

PrivateGPT on AWS: The New Era of LLMs Document Security

ai
python
Since the introduction of the Large Language Models I have been intrigued to experiment with them and I was concerned about their potential introduction in the company’s…
Jun 8, 2023
Federico Viscioletti

Code Snippets: Python - How to sort dictionary values

python
In this blog post, we will explore two methods to sort dictionary values, demonstrating their implementation and usage.
May 6, 2023
Federico Viscioletti

Code Snippets: Python - If statements with multiple conditions

python
Sometimes when writing a Python script we have to deal with if statements where multiple conditions need to verified at the same time.
Feb 17, 2023
Federico Viscioletti

Code Snippets: Python - How to merge two dictionaries

python
I want to inaugurate a column in which to make available small snippets of code that are quick and easy to use,
Feb 13, 2023
Federico Viscioletti

Code Snippets: Python - Come unire due dizionari

python
Voglio inaugurare una rubrica in cui mettere a disposizione piccoli frammenti di codice facili e veloci da usare, che nel lavoro quotidiano sono risultati molto utili.
Feb 10, 2023
Federico Viscioletti

Quale corso di laurea in Scienze Statistiche scegliere?

Quando arriva il momento di scegliere il corso di laurea più adatto al proprio percorso spesso può risultare davvero difficile. Quali competenze occorre acquisire per…
Feb 9, 2023
Federico Viscioletti

Data mining: di cosa si tratta, come funziona, alcuni esempi e software di riferimento

python
Con Data Mining, termine inglese traducibile con estrazione di dati, si intende tutta quella serie di tecniche e di algoritmi che permettono di estrarre informazioni…
Jan 25, 2023
Federico Viscioletti

Conditional statements in SAS Base

base-sas
After getting familiar with the rudiments of Base SAS, in this article we will deal with how to handle conditional statements.
Jan 22, 2023
Federico Viscioletti

Présentation de SAS Base

base-sas
Dans cette introduction à SAS Base, nous allons commencer à explorer le monde SAS, en commençant par le bloc de construction fondamental: le langage de programmation.
Jan 22, 2023
Federico Viscioletti

Introduction to Base SAS

base-sas
In this introduction to Base SAS Base we will begin to explore the world of SAS, starting with the fundamental building block: the programming language.
Jan 21, 2023
Federico Viscioletti

Le istruzioni condizionali in SAS Base

base-sas
Dopo aver preso dimestichezza con i primi rudimenti di SAS Base, in questo articolo ci occuperemo di come gestire le istruzioni condizionali.
Dec 3, 2015
Federico Viscioletti

Introduzione a SAS Base

In questa introduzione a SAS Base inizieremo ad esplorare il mondo SAS, partendo dal mattone fondamentale: il linguaggio di programmazione.
Nov 7, 2015
Federico Viscioletti
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