Elizeu Santos-Neto
University of British Columbia
Elec. & Computer Engineering Department
KAIS 4075 - 2332 Main Mall
Vancouver, BC - CANADA
V6T 1Z4
Phone: +1.604.827.4270
elizeus at ece ubc ca
[blog]
[photography]
[publications]
[cv]
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I am a PhD Student at the NetSysLab where I work with Prof. Matei Ripeanu. My research focuses on the characterization and design of online peer production systems such as peer-to-peer networks and collaborative tagging communities. Also, I collaborate with my coleagues on a number of cool projects.
Prior to joining UBC, I received a B.Sc. in Computer Science from the Universidade Federal de Alagoas and a M.Sc. in Computer Science from the Universidade Federal de Campina Grande, in Brazil. In the past, I have worked in a variety of projects related to distributed systems, including the OurGrid project, the Virtual Workspaces project at Argonne National Labs (Chicago, IL, USA), and, more recently, the Mobile Content-Casting project at Microsoft Research, Cambridge, UK.
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Current Projects
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Characterization of Tagging Communities
Tagging communities are popular instances of content-sharing
communities, where users are able to annotate items with free-form
words (i.e. tags). The goal of this project is to provide models
that explain individual behavior and community characteristics.
Additionally, we are currently investigating reputation schemes
in these environments. With: Matei Ripeanu,
Adriana Iamnitchi
and Nazareno
Andrade
Publications
- [Conference] Elizeu Santos-Neto, David Condon, Nazareno Adrade,
Adriana Iamnitchi, Matei Ripeanu. Individual and Social Behavior in Tagging Systems
. In the 20th ACM Conference on Hypertext and Hypermedia, July, 2009.
[abstract] [Technical Report] [DOI]
- [Workshop] Elizeu Santos-Neto, Matei Ripeanu and Adriana Iamnitchi. Content Reuse and Interest Sharing in Tagging Communities. Technical Notes of the AAAI 2008 Spring Symposia - Social Information Processing, March, 2008, Stanford, CA, USA. [abstract]
- [Workshop] Elizeu Santos-Neto, Matei Ripeanu and Adriana Iamnitchi. Tracking User Attention in Collaborative Tagging Communities. In Proceedings of the International ACM/IEEE Workshop on Contextualized Attention Metadata, June, 2007, Vancouver, BC, Canada. [abstract]
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Improving Distributed Systems through Collaborative Annotations
Cross-layer communication is an approach used in the design of layered
architectures that enables valuable information flow across layers. This
communication allows applications to adapt faster and more adequately to
changes in the underlying infrastructure and the infrastructure to
optimize for what the applications care most. This project goal is
to investigate the use of collaborative annotations as the communication
mechanism for cross-layer optimization. In particular, we focus on two
contexts: 1) cross-layer communication in storage systems; and 2) scalable
resource annotation in Peer-to-Peer Grids. With:
Nazareno
Andrade,
Samer Al-Kiswany,
Francisco Brasileiro, Sathish Gopalakrishnan and Matei Ripeanu.
Publications
- [Conference] Nazareno Andrade, Eizeu Santos-Neto and Francisco Brasileiro.
Scalable Resource
Annoation in Peer-to-Peer Grids. In the 8th International Conference on
Peer-to-Peer Systems (P2P'2008).
Sep 2008. Aachen, Germany.
- [Conference] Elizeu Santos-Neto, Samer Al-Kiswany, Nazareno Andrade, Sathish Gopalakrishnan and Matei Ripeanu. Enabling Cross-Layer Optimizations in Storage Systems with Custom Metadata. ACM/IEEE International Symposium on High Performance Computing (HPDC) - HotTopics, June, 2008, Boston, MA, USA. [slides] [DOI]
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Collaborations
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Characterizing BitTorrent Communities
Publications
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StoreGPU
Publications
- [Journal] Samer Al-Kiswany, Abdullah Ghara
ibeh, Elizeu Santos-Neto and Matei Ripeanu. On GPU's Viability as a Middleware Accelerator.
Cluster Computing Journal, Springer, 2009.
[abstract]
- [Conference] Samer Al-Kiswany, Abdullah Gharaibeh, Elizeu Santos-Neto, George Yuan and Matei Ripeanu. StoreGPU: Exploiting Graphics Processing Units to Accelerate Distributed Storage Systems. ACM/IEEE International Symposium on High Performance Computing (HPDC), June, 2008, Boston, MA, USA. [abstract]
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Past Projects
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Market Based Resource Allocation
Summer internship at Argonne Labs as part of the Virtual Workspaces Project. (with Kate Keahey)
Publications
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OurGrid
Publications
- [Book Chapter]
Walfredo Cirne, Francisco Brasileiro, Daniel Paranhos, Lauro Costa, Elizeu Santos-Neto and Carla Osthoff. Building a User-Level Grid for BoT Applications. In High Performance Computing: Paradigm and Infrastructure. L. T. Yang and M. Guo (eds.), John Wiley, 2005.
- [Workshop] Elizeu Santos-Neto, Walfredo Cirne, Francisco Brasileiro and Aliandro Lima. Exploiting Replication and Data Reuse to Efficiently Schedule Data-intensive Applications on Grids. In Proceedings of 10th Workshop in Job Scheduling Strategies for Parallel Processing, June 2004. New York, NY, USA. [ps.gz]
- [Conference] Walfredo Cirne, Francisco Brasileiro, Lauro Costa, Daniel Paranhos, Elizeu Santos-Neto, Nazareno Andrade, Cesar De Rose, Thiago Ferreto, Miranda Mowbray, Roque Scheer, Joao Jornada. Scheduling in Bag-of-Task Grids: The PAUÁ Case. In Proceedings of the 16th SBAC-PAD, October 2004.
- [Conference] Walfredo Cirne, Daniel Paranhos, Lauro Costa, Elizeu Santos-Neto, Francisco Brasileiro, Jacques Sauvé, Fabricio Silva, Carla Osthoff, Cirano Silveira. Running Bag-of-Tasks Applications on Computational Grids: The MyGrid Approach. Proceedings of the 32nd International Conference on Parallel Processing, 6-9 October 2003, Kaohsiung, Taiwan.
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The University of British Columbia