R003 laila restaurant sanitation report(NYC Data Science Academy, Data Science by R Intensive Beginner)
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NYC Data Science Academy, Data Science by R Intensive Beginner level, R003 student, Laila, presented on restaurant sanitation report using NYC Open Data Set, see her blog post at http://nycdatascience.com/2014/05/pizza-everyone-loves-pizza/
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Pre-requisite(if any): R /Calculus
Preparation: A laptop with R installed. Windows users might need to have RTools installed as well.
Agenda:
Introduction of Xgboost
Real World Application
Model Specification
Parameter Introduction
Advanced Features
Kaggle Winning Solution
Event arrangement:
6:45pm Doors open. Come early to network, grab a beer and settle in.
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Apart from metrics for model evaluation, we will cover how to evaluate model complexity, and how to tune parameters with grid search, randomized parameter search, and what their trade-offs are. We will also cover out of core text feature processing via feature hashing.
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---------------------------------------------------------
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Syllabus
Predictive Modeling using R
Description
This class will get attendees up to speed in predictive modeling using the R programming language. The goal of the course is to understand the general predictive modeling process and how it can be implemented in R. A selection of important models (e.g. tree-based models, support vector machines) will be described in an intuitive manner to illustrate the process of training and evaluating models.
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Outline:
- An introduction to predictive modeling
- R and predictive modeling: the good and bad
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- Measuring performance
- Data splitting and resampling
- Data pre-processing
- Classification trees
- Boosted trees
- Support vector machines
If time allows, the following topics will also be covered
- Parallel processing
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- Feature selection
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Attendees will be provided with a copy of Applied Predictive Modeling[2] as well as course notes, code and raw data. Participants will be able to reproduce the examples described in the workshop.
Attendees should have a computer with a relatively recent version of R installed.
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The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
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- 8. explore.
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