Rob Hall
If you want to email me, you can deduce my address from the URL of this page (hint: echo "www.cs.cmu.edu/~rjhall" | perl -pe 's/(http:\/\/)?www\.(.*?)\/~(.*?)(\/.*|$)/\3\@\2/'). If you don't understand this RE, then just put the thing after the tilde before the thing that comes after the www., you can probably figure out where to put the at sign.

I am a grad student in the Machine Learning department at CMU. I am working with Professor Steven Fienberg of the statistics department. My current research is about secure multi-party computations for data-mining tasks like regression.

Previously I worked with Andrew McCallum at UMass, looking at machine learning for record linkage in a variety of different settings.

For notes and code related to the secure protocol for linear and logistic regression, please click here

Teaching

Fall 2011: 36-755 Advanced Statistical Theory I (I am the sole TA).
Fall 2010: 10-701 Machine Learning (I was one of 5 TAs)

Publications

2011

Random Differential Privacy
Rob Hall, Alessandro Rinaldo, Larry Wasserman
Currently Unpublished

Achieving Both Valid and Secure Logistic Regression Analysis on Aggregated Data from Different Private Sources
Stephen Fienberg, Robert Hall, Yuval Nardi
Currently Unpublished

Secure Multiparty Linear Regression Based on Homomorphic Encryption
Robert Hall, Stephen Fienberg, Yuval Nardi
Journal of Official Statistics (to appear)

Approaches to Multiple Record Linkage
Mauricio Sadinle, Robert Hall, Stephen Fienberg
ISI 2011, invited paper

2010

Privacy Preserving Record Linkage
Robert Hall, Stephen Fienberg
Privacy in Statistical databases (PSD) 2010

2009

Translating Relevance Scores to Probabilities for Contextual Advertising
Deepak Agarwal, Evgeniy Gabrilovich, Robert Hall, Vanja Josifovski
CIKM 2009

2008

Unsupervised Deduplication using Cross-Field Dependencies
Robert Hall, Charles Sutton, Andrew McCallum
KDD 2008
slides

2007

Canonicalization of Database Records using Adaptive Similarity Measures
Aron Culotta, Michael Wick, Robert Hall, Matthew Marzilli, Andrew McCallum
KDD, 2007

Author Disambiguation using Error-driven Machine Learning with a Ranking Loss Function
Aron Culotta, Pallika Kanani, Robert Hall, Michael Wick, Andrew McCallum
IIWeb-07
slides

First-Order Probabilistic Models for Coreference Resolution
Aron Culotta, Michael Wick, Robert Hall, Andrew McCallum
HLT/NAACL, 2007

A Comparison of Dag-Scheduling Strategies for Internet-Based Computing
R. Hall, A. Rosenberg, A. Venkataramani.
IPDPS 2007

Talks

Secure Multiparty Regression Based on Homomorphic Encryption
Penn State University, Theory Seminar March 2011

Arbitrary Other Stuff

My Erdos Number is 3 due to collaboration with Arny Rosenberg (2) during my final year as an undergrad at UMass.

In addition to machine learning I also enjoy running and have begun tracking my progress here

I have a twitter page which is run by a trigram model disguised as a cat, you can read it here but note that it is not particularly PC, and does not reflect my particular opinions etc...