Dan Feldman's Home Page


Postdoctoral at MIT,

in the Artificial Intelligence Lab (CSAIL)

of the Electrical Engineering and Computer Science Department (EECS)

 

e-mail: dannyf@csail.mit.edu

 


 

I am a post-doc researcher at the group of Distributed Robotics Laboratory (DRL) at MIT.

Current research

·       Google your life: activity learning from GPS and sensor networks of smartphones and robots.

·       Design and implementation of streaming algorithm in cloud/GPU systems.

·       I am especially excited about reducing the gap between theoretical and practical algorithms, using my experience in the industry and academy.

Areas of interest

Big Data, Machine Learning, Robots, Sensor networks, Streaming, Distributed cloud computing,
Optimization algorithms, Compressed sensing, Private data analysis
.

Main technique

Core-sets/Sketches: Semantic compression of data sets into small sets that provably approximate the original data for a given problem. Using merge-reduce (e.g. Hadoop) the small sets can then be used for solving hard machine learning problems in parallel (on the cloud/network) and on Big streaming data.

Publications and Papers

·       Big Data for Robots: Online HMM Coresets for Sensor Streams,
with Cathy Wu, Brian Julian, Cynthia Sung, and Daniela Rus.
Submitted to the IEEE International Conference on Robotics and Automation (ICRA) 2013

·       K-Robots Clustering of Moving Sensors using Coresets,

with Stephanie Gil, Ross Knepper, Brian J. Julian, and Daniela Rus.
Submitted to the IEEE International Conference on Robotics and Automation (ICRA) 2013

·       My Long and Winding Road: From Big (GPS) Data to a Searchable Diary,
with Cynthia Sung, and Daniela Rus.
Submitted to the ACM Special Interest Group on Information Retrieval (SIGIR) 2013

·       Learning Big (Image) Data via Coresets for Dictionaries,

with Micha Feigin, and Nir Sochen.

The International Biomedical and Astronomical Signal Processing (BASP) Frontiers workshop, 2013, to appear
Submitted to The  Journal of Mathematical Imaging and Vision (JMIV)

·       The Single Pixel GIS:
Learning Big Data Signals from Tiny Coresets,

with Cynthia Sung and Daniela Rus.
Proc. 20th ACM  International Conference on Advances in Geographic Information Systems (SIGSPATIAL GIS) 2012

[Slides]

·       Turning Big Data into Tiny Data:
Constant-size Coresets for k-means, PCA and Projective Clustering,

with Melanie Schmidt and Christian Sohler.
Proc. 24th Annu. ACM  Symp. on Discrete Algorithms (SODA) 2013, to appear,
and in the 4th Workshop on Massive Data Algorithms (MASSIVE) 2012

·       Trajectory Clustering for Motion Prediction,

with Cynthia Sung and Daniela Rus.

IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS’12)

[Slides]

·       Communication Coverage for Independently Moving Robots,

with Stephanie Gil and Daniela Rus.


IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS’12)

 [Slides]

·       An Effective Coreset Compression Algorithm for Large Scale Sensor Networks,

with Andrew Sugaya and Daniela Rus.

Proc. 11th ACM/IEEE Conf. on Information Processing in Sensor Networks (IPSN) 2012

[Slides]

·       Data Reduction for Weighted and Outlier-resistant Clustering

with Leonard J. Schulman.

Proc. 23th Annu. ACM  Symp. on Discrete Algorithms (SODA) 2012

[Slides]


·       Scalable Training of Mixture Models via Coresets,

with Andreas Krause and Matthew Faulkner.

Proc. 25th Conference on Neural Information Processing Systems (NIPS) 2011
[Slides]

·    A Unified Framework for Approximating and Clustering Data,

with Michael Langberg. 

Proc. 43st Annu. ACM Symposium on Theory of Computing (STOC 2011) [Fuller Version]

·   From High Definition Image to Low Space Optimization,

with Micha Feigin and Nir Sochen. 

Scale Space and Variational Methods in Computer Vision (SSVM) 2011

·    Coresets and Sketches for High Dimensional Subspace Approximation Problems,

with Morteza Monemizadeh, Christian Sohler and David Woodruf, 

Proc. 21th Annu. ACM  Symp. on Discrete Algorithms (SODA) 2010

 

·    Private Coresets,

with Amos Fiat, Haim Kaplan and Kobbi Nissim.

Proc. 41st Annu. ACM Symposium on Theory of Computing (STOC) 2009 [Slides]

·    A PTAS for k-Means Clustering Based on Weak Coresets,

with Morteza Monemizadeh and Christian Sohler,

Proc. 23th Annu. ACM Symposium on Computational Geometry (SoCG) 2007

·  Bi-criteria Linear-time Approximations for Generalized k-Mean/Median/Center,

with Amos Fiat, Danny Segev and Micha Sharir,

Proc. 23th Annu. ACM Symposium on Computational Geometry (SoCG) 2007

·    Coresets for Weighted Facilities and Their Applications,

with Amos Fiat and Micha Sharir,

Proc. 47th Annu. IEEE Symposium on Foundations of Computer Science (FOCS) 2006 [Slides]

Thesis

·   Coresets and Their Applications,
under the supervision of Amos Fiat and Micha Sharir,

      Ph.D Thesis, December 2010

·   Algorithms for Finding the Optimal k-Line Mean,
under the supervision of Amos Fiat,

      M.Sc Thesis, March 2004

Teaching

·       Algorithms (2009b)

·       Data Structures (2009b)

·       Approximation Algorithms (2009a)

·       Data Structures and Algorithms (2009a)

·       Workshop on Google Gadget (2008b)

·       Algorithmics (2008c)

·       Algorithms (2007b)

·       Data Structures (2008b)

·       Data Structures (2008a)

·       Data Structures (2007a)

·       Data Structures (2006b)

·       Discrete Math (2006a, b)