Nov 20 Data Science Talklet: Incorporating Text Data into Your Feature Set
As promised, here are the slides and notes from my DSDC talklet on strategies for incorporating text data into the feature set of a predictive model. Slides Notes github Thanks to Harlan for asking, and to Dan and David for...
Visualizing Baltimore 3.1: Crime and Vacant Properties, Neighborhood Level, Bit More Polished
Redos of the plots from this post: Bit more communicative, though the overplotting is a bit annoying. Code: ## gis libraries library(spBayes) library(MBA) library(geoR) library(fields) library(sp) library(maptools) library(rgdal) library(classInt) library(lattice) library(xtable) library(spatstat) library(splancs) ## Other packages library(ggplot2) library(foreign) library(stringr) library(lubridate)...
Visualizing Baltimore 3: Crime and Vacant Properties, Neighborhood Level
A few quick plots of West Baltimore neighborhoods, first Sandtown-Winchester: and Harlem Park: These aren't very polished, I'll put up better versions. Here's the code for those that want it: ## gis libraries library(spBayes) library(MBA) library(geoR) library(fields) library(sp) library(maptools) library(rgdal)...
Visualizing Baltimore 2: Vacant Property and Some More Crime
One of the key predictors in my model for this crime project I'm working on is vacant houses and lots. I'll speak to some findings about the relationship between levels of the different types of crime and vacant property in...
Visualizing Baltimore with R and ggplot2: Crime Data
The advent of municipal open data initiatives has been both a blessing and curse for my particular brand of data nerd. On one hand, it has opened up the possibility of developing deep and useful knowledge about the places we...
Topic Modeling 1: Simulated LDA Corpus
Because I am self-taught in many of the areas of computer science and more advanced statistics and probability theory I am most interested in, and because I have a deep aversion both to looking foolish and being full of it...
To the Basics: Bayesian Inference on A Binomial Proportion
Think of something observable - countable - that you care about with only one outcome or another. It could be the votes cast in a two-way election in your town, or the free throw shots the center on your favorite...
A Monty Hall Monte Carlo, Part 1? (Oh God)
While I dig into conjugacy and the calculation of Bayesian credibility intervals, I figured it'd be good to put some of my other little rabbit holes up here on the off chance they're interesting to someone. For some reason I...
