Portfolios on ugofolio

WRAP-UP

Mon, 01 Jan 0001 00:00:00 +0000

À la LaTeX

Mon, 01 Jan 0001 00:00:00 +0000

LATEST POST
Topics: quick reference and extensions to write in LaTeX.

Web-based Interactive Maps

Mon, 01 Jan 0001 00:00:00 +0000

Topics: responsive. True interactivity: zoom in, zoom out, markers, pop-ups, move around, etc.

FUNNY 3!

Mon, 01 Jan 0001 00:00:00 +0000

Machine Learning; Classifiers & Clusters

Mon, 01 Jan 0001 00:00:00 +0000

Topics: classification and clustering methods. Unsupervised techniques. Clustering: k-means, k-nearest neighbours, hierarchical clustering. Supervised techniques: regression, tree, random forests. Training, testing, predicting. Performance measures: Dunn’s index, ROC, AUC, confusion matrix.

Survival of the Fittest

Mon, 01 Jan 0001 00:00:00 +0000

Topics: survival analysis. Event history analysis. Failure and churn analysis. Parametric, semiparametric, and nonparametric models: proportional hazards, accelerated failure time, exponential, piecewise exponential, Weibull, lognormal and Cox regression. Customer churn analysis. Censored and truncated data. Limited dependent variable and Tobit models.

Algorithms and Spam

Mon, 01 Jan 0001 00:00:00 +0000

Topics: analyze texts (emails) with algorithms. Differentiate spam and nonspam. Custom methods, tree-based methods, and Support Vector Machine. Train, test, and evaluate the methods.

Sieving Data

Mon, 01 Jan 0001 00:00:00 +0000

Topics: data mining. Market basket analysis. Understanding consumer behaviour. Association rules or what is behind recommendation systems. data mining. Market basket analysis. Understanding consumer behaviour. Association rules or what is behind recommendation systems. Dimension reduction. Multidimensional scaling. Factorial analysis, Component analysis (principal, simple, multiple). Linear discriminant analysis. Feature selection.

Infographic software

Mon, 01 Jan 0001 00:00:00 +0000

Topics: experimenting with Tableau. Infographic examples.

FUNNY 2!

Mon, 01 Jan 0001 00:00:00 +0000

Geospatial Analysis and Geostatistics

Mon, 01 Jan 0001 00:00:00 +0000

Topics: introduction to geospatial models. Visualization with maps. Analyze the Australian Football League audience. Spatial autocorrelation. Autoregressive, lag and error models. Spatial logit and probit models. More advanced models.

Map Mashup & Geointelligence

Mon, 01 Jan 0001 00:00:00 +0000

Topics: data visualization and map mashups. Introduction to spatial analysis. How to add intelligence to maps.

Tweet, Tweet

Mon, 01 Jan 0001 00:00:00 +0000

Topics: web scraping (tweets) with an API. Natural Language Processing. Select topics and keywords to capture tweets. Get up-to-the-minute data and measure delays between tweet (tweeting speed). Text mining and word clouds. Compare two topics: assess popularity with the Poisson distribution. Analyze and manipulate text strings.

Descriptive & Inferential Statistics

Mon, 01 Jan 0001 00:00:00 +0000

Topics: basic to advanced statistical methods. Analyze census data (US state population). Infer the population with sampling and bootstrapping. Simulations and Monte Carlos.

Optimizing the Coffee

Mon, 01 Jan 0001 00:00:00 +0000

Topics: mathematical optimization. The cooling effect of cream in the coffee. Extrapolation and interpolation.

THOUGHTFUL...

Mon, 01 Jan 0001 00:00:00 +0000

Pythonic Stuff

Mon, 01 Jan 0001 00:00:00 +0000

Topics: a series of projects. A website using a simple web framework. Documentation websites using static site generators. A command-line game and an application to be downloaded and installed.

Interactive Visualization

Mon, 01 Jan 0001 00:00:00 +0000

Topics: interactive data visualization and graphics.

Visualization

Mon, 01 Jan 0001 00:00:00 +0000

Topics: show graphics and maps instead of explanation or simple data tables. Static visualization. Bring opaque data into general understanding. Storytelling with numbers. Present surveys and polling data.

...and counting

Mon, 01 Jan 0001 00:00:00 +0000

Topics: Model consumer demand (unit sold). Predict trends. Poisson and Negative Binomial distributions for counting discrete events.

Data Storytelling

Mon, 01 Jan 0001 00:00:00 +0000

Topics: present to a technical and a nontechnical audience. Storytelling. Bring arcane subjects into general use. Use econometrics techniques. Pose hypotheses, set goals, perform analyses and draw conclusions.

FUNNY!

Mon, 01 Jan 0001 00:00:00 +0000

Forage de texte

Mon, 01 Jan 0001 00:00:00 +0000

Sujets: Sujets: traitement du langage naturel. Construire un corpus de textes. Explorer les statistiques. Visualiser les mots, les fréquences, les mots communs, les mots différents, les bigrammes. Utiliser des nuages, des graphiques à barres et des dendrogrammes.

Mining Text

Mon, 01 Jan 0001 00:00:00 +0000

Topics: natural language processing, sentiment analysis, and topic modeling. Build a corpus of texts (documents or any tweet, email, comment, publication, status, etc.). Download data using APIs. Populate a database. Explore the statistics. Filter and extract regular expressions. Visualize words, frequencies, ngrams. Assess sentiment, draw conclusions, and provide advice.

Exploring Pitch Data

Mon, 01 Jan 0001 00:00:00 +0000

Topics: multivariate analysis and visual exploration. Clean and format datasets. Pitching velocity, mix, patterns, location in the ball-strike zone. Change by month, by game, by inning. Ball-strike count, early- and late-game situations. Velocity, impact, and contact rate.

Titanic: Getting the Picture

Mon, 01 Jan 0001 00:00:00 +0000

Topics: decision trees, k-NN, and random forests. Storytelling and narrative. Data exploration: tables vs Venn diagrams vs visualization. Train and test sets. Confusion Matrix. Folds and cross validation. Pruning and avoiding overfitting.

Modeling Credit Risk

Mon, 01 Jan 0001 00:00:00 +0000

Topics: logit, probit, loglog and decision trees. Descriptive statistics. Train and test sets. Predictions. Confusion Matrix and ROC. Bank loan portfolio acceptance rate, bad rate, and risk tolerance.

Portfolios on ugofolio

WRAP-UP

Tags

À la LaTeX

Web-based Interactive Maps

FUNNY 3!

Machine Learning; Classifiers & Clusters

Survival of the Fittest

Algorithms and Spam

Sieving Data

Infographic software

FUNNY 2!

Geospatial Analysis and Geostatistics

Map Mashup & Geointelligence

Tweet, Tweet

Descriptive & Inferential Statistics

Optimizing the Coffee

THOUGHTFUL...

Pythonic Stuff

Interactive Visualization

Visualization

...and counting

Data Storytelling

FUNNY!

Forage de texte

Mining Text

Exploring Pitch Data

Titanic: Getting the Picture

Modeling Credit Risk