Consulting Archives - Bommarito Consulting

Published On - 2015-01-27

mjbommar Consulting, Machine Learning, Programming, TrainingTags: abm, complex systems, course, modeling, monte carlo, network, python, training

Course material for Complex Systems 530 – Computer Modeling for Complex Systems

This term, I’m teaching Complex Systems 530 – Computer Modeling for Complex Systems at the University of Michigan Center for the Study of Complex Systems. In the spirit of open science, all course material will be available online at Github. You can browse the repository here: ht...

Published On - 2014-07-27

mjbommar Consulting, Law, Machine Learning, ResearchTags: machine learning, prediction, supreme court, vote

Predicting the Supreme Court

One of the more exciting and public projects we’ve been working on lately has finally come to light – our Supreme Court prediction project with Dan Katz and Josh Blackman. This project is exactly what you’d expect – a framework for predicting the Supreme Court, though ...

Published On - 2014-06-30

mjbommar Consulting, Machine Learning, Natural Language Processing, ProgrammingTags: approximate, fuzzy, fuzzy match, machine learning, natural language processing, nlp, nltk, python, sentence, text mining

Advanced approximate sentence matching in Python

In our last post, we went over a range of options to perform approximate sentence matching in Python, an import task for many natural language processing and machine learning tasks. To begin, we defined terms like: tokens: a word, number, or other “discrete” unit of text. stems: words...

Published On - 2014-06-12

mjbommar Consulting, Machine Learning, Natural Language Processing, Programming, ResearchTags: fuzzy, fuzzy match, machine learning, natural language, nlp, nltk, python, sentence, text mining

Fuzzy match sentences in Python

Let’s imagine you have a sentence of interest. You’d like to find all occurrences of this sentence within a corpus of text. How would you go about this? The most obvious answer is to look for exact matches of the sentence. You’d search through every sentence of your corpus,...

Published On - 2014-06-08

mjbommar Consulting, Machine Learning, Programming, ResearchTags: data, isotonic, machine learning, monotonic, predictive analytics, python, scikit-learn, sklearn, smooth

Isotonic Regressions in scikit-learn

Isotonic regression is a great tool to keep in your repertoire; it’s like weighted least-squares with a monotonicity constraint. Why is this so useful, you ask? Take a look at the example relationship below. (You can follow along with the Python code here). Let’s imagine ...

Published On - 2014-06-03

mjbommar Consulting, Law, Research, SocietyTags: complexity, dataset, law, legal complexity

Featured in Wired: Measuring the Complexity of the Law

Thanks to Sam Arbesman (@arbesman) for featuring Dan and my paper, Measuring the Complexity of the Law: The United States Code, on his excellent Wired Science blog, the Social Dimension. You can read the article here, and, as a reminder, all of the code and data from the paper is available in this ...

Published On - 2014-05-19

mjbommar Cloud, Consulting, Infrastructure, LawTags: cloud, iaas, paas, saas, state and local tax, tax, taxation

Is there tax in the cloud?

Do you contract for IaaS, PaaS, or SaaS services like Amazon Web Services or SalesForce? Do you provide SaaS services like “cloud-based applications” or “web applications?” What state are you headquartered in? What states are your servers located in? What states are yo...

Published On - 2013-10-29

mjbommar Cloud, Consulting, InfrastructureTags: aws, boto, log, monitor, tunnel, vpc, vpn

Monitoring AWS VPC tunnels

While many Amazon Web Services resources with “state” have CloudWatch sensors available, AWS VPCs and tunnels unfortunately do not. If you’re ever in need of a solution to monitor and log the status of VPC tunnels back to another data center or office, my gist below will be right...

Published On - 2013-10-29

mjbommar Consulting, ProgrammingTags: disk, io, oracle, orion, performance, testing

Automating Oracle ORION I/O testing

Oracle ORION is a powerful tool for evaluating realistic OLTP and DSS/DW I/O performance. ORION should be a part of every Oracle professional’s toolkit for build QA and performance tuning. I’ve previously used it on this blog to show the performance of Amazon’s hi1.4lxarge SSD-...

Published On - 2013-10-28

mjbommar Cloud, Consulting, Infrastructure, Programming, ResearchTags: aws, benchmark, cloud, ec2, hi1.4xlarge, hs1.8xlarge, io, oracle, orion

AWS EC2 hs1.8xlarge Oracle ORION benchmark results

Benchmarking I/O with Oracle ORION is an important part of planning, baselining, and performance-tuning Oracle environments. I’ve previously provided ORION results for the hi1.4xlarge SSD-backed instance class, and based on some recent work, I wanted to provide an update for the newer hs1.8x...