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ISSDM People


Martin Abadi
UCSC

Bo Adler
UCSC

B. Thomas Adler (commonly referred to as "Bo") is a computer scientist studying user behavior in Wikipedia and building trust systems for wikis. He is a graduate student at the University of California in Santa Cruz, where he has received a master's degree for research on timed games.

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James Ahrens
CCS-7

ISSDM CRP Project Mentor

Research Projects:

Ramakrishna Akella
UCSC

Professor Akella teaches Information Systems Management courses for ISSDM.  His research interests are: Knowledge and Service Science, Machine Learning, Business Management

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Ujjaini Alam
ISR-1

Sasha Ames
UCSC

Sasha Ames is a PhD candidate in the UCSC Systems Research Lab, advised by Carlos Maltzahn. He works at Lawrence Livermore National Laboratory as part of the Lawrence Scholar Program for PhD students. His research focuses on data management of metadata-rich file systems, in which he has developed the Quasar query language and QFS queriable file system.

Sasha was part of ISSDM in 2006 while advised by Ethan Miller, working on the Distributed Metadata project.

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William Battaglia
GS-PO

John Bent
HPC-5

ISSDM CRP Project Mentor

Research Projects:

David Bigelow
HPC-5

David Bigelow
UCSC

David Bigelow is a first-year graduate student currently studying the application of basic RAID principles to object-based storage systems. He works with Professor Scott Brandt.  His LANL mentors are Gary Grider, James Nunez, and John Bent.

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Scott Brandt
UCSC

Prof. Scott Brandt is Associate Professor of Computer Science, the UCSC Director of the ISSDM and the Director of Graduate Studies for the Computer Science Department at the University of California Santa Cruz. He is also Director of the UCSC Real-Time Systems Laboratory, Associate Director and co- founder of the UCSC Storage Systems Research Center, and co-founder UCSC/Los Alamos Institute for Scalable Scientific Data Management. Scott's research is in the area of Computer Systems. He specializes in both storage systems and real-time systems. His current storage system research focuses on high-performance peta-scale distributed object-based storage, while his real-time research focuses on integrating real-time and non-real-time processing into a uniform processing environment. His most recent research intregrates the two, researching novel solutions for robust guaranteeable management of varied system resources, including CPU, disk, memory, and network.

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Alexandre Brandwajn
UCSC

Dr. Brandwajn teaches graduate courses in Computer Engineering for ISSDM.

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Christopher Brislawn
CCS-3
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Joe Buck
HPC-5

Joe Buck
UCSC
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Eddy Chandra
UCSC

Eddy Chandra is working with Dr. Alex Pang on Uncertainty Visualization with CCS-1.


Avik Chaudhuri
UCSC

HB Chen
HPC-5

ISSDM CRP Project Mentor

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Yunfei Chen
UCSC

Abbey Chrystal
UCSC

Carolyn Connor
HPC-5

LANL ISTI Deputy Director

ISSDM CRP Project Mentor

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Jorge Cortes
UCSC

Adam Crume
UCSC
Research Projects:

Helen Cui
N-4

James Davis
UCSC

James Davis' research includes shape acquisition, motion capture, computational photography, and technology for social change.

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Luca de Alfaro
UCSC

Luca de Alfaro's research interests include reputation and trust systems for on-line collaboration.  The goal of such systems is to enhance on-line collaboration and interaction, creating an incentive for users to behave in constructive fashion, and preventing spam and abuse. Currently, Luca de Alfaro is developing the WikiTrust reputation system for Wikipedia authors and content. In addition to trust and reputation systems, Luca de Alfaro's research interests include game theory, system analysis, and software verification.

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Nathan Debardeleben
HPC-5

Subhas Desa
UCSC
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Krishna Devarapalli
UCSC
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Andrea DiBlas
UCSC

Dr. Andrea DiBlas is exploring collaboration on advanced architectures with IAT-2.  Dr. DiBlas teaches Computer Engineering courses for ISSDM.

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Tatiana Djidjeva
CCS-3

Graduate student at UCSC through the ISSDM Distance Learning Program


Tatiana Djidjeva
UCSC

Tatiana Djidjeva is a LANL TSM enrolled in the UCSC graduate program working towards a Ph.D. in CS from CCS-3.


Ian Dunham
UCSC

Damian Eads
UCSC

Damian Eads is a Ph.D. student studying the application of machine learning to tackle remote sensing, imagery, time series, and systems problems. He collaborates with Professor Ethan Miller on the use of machine learning for storage problems. As a Staff Research Assistant for the ISR Division at the Los Alamos National Laboratory, he develops data analysis algorithms for remote sensing data under the direction of Dr. James Theiler. He graduated from the Rochester Institute of Technology with a B.S. in Computer Science in 2004 (w/ High Honors), and minored in Mathematics and Psychology.
Damian's LANL Mentor is James Theiler.

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Gabriel Elkaim
UCSC

Cormac Flanagan
UCSC

Dr. Flanagan teaches graduate courses in Computer Science for ISSDM.

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E. Gabrie
UCSC

John Galbraith
P-21
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Jose Joaquin Garcia-Luna-Aceves
UCSC

Dr. Garcia-Luna-Aceves teaches graduate classes for ISSDM.

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Lise Getoor
UMD

Lise is a collaborator on databases from UMD

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Karen Glocer
UCSC

Karen Glocer is a Ph.D. student in Computer Science doing thesis research in machine learning at Los Alamos National Laboratory.  Karen's UCSC Mentor is Manfred Warmuth.  Her LANL mentor is James Theiler.


Rishi Graham
UCSC

Rishi Graham is working on the Cosmic Calibration project with Professors Bruno Sanso and Herbie Lee and with LANL mentors David Higdon and Katrin Heitmann.


Kevin Greenan
UCSC

Kevin is currently working on storage reliability with Prof. Ethan Miller for the MRAM and POTSHARDS projects. His interests include data reliability, coding theory, security, long-term archival storage and distributed systems.


Gary Grider
HPC-DO

LANL ISTI Director

ISSDM CRP Project Mentor

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Jessica Gronski
UCSC

Jessica is working with Dr. Yi Zhang on Database technology with the LANL Technical Library

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Salman Habib
T-08

ISSDM CRP Project Mentor

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Katrin Heitmann
ISR-1

ISSDM CRP Project Mentor


David Helmbold
UCSC

Dr. David Helmbold's current research centers around machine learning and computational learning theory. In addition, to theoretical work, he has applied learning algorithms to practical problems such as determining when to spin down a disk drive in a portable computer to save power.

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David Higdon
CCS-6

ISSDM CRP Project Mentor

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Tracy Holsclaw
UCSC

Tracy Holsclaw is a PhD student working under Herbie Lee (UCSC) and Bruno Sanso (UCSC) on Cosmic Calibration - Statistical Modeling for Dark Energy. This is an ISSDM collaboration with Los Alamos National Labs cosmologists Katrin Heitmann, Salman Habib and Ujjaini Alam and statistician Dave Higdon. We currently are working with Bayesian parametric and non-parametric models to fit non-linear equations to Supernova data to elicit the form of dark energy.


Kleoni Ioannidou
UCSC
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Kleoni Ioannidou
UCSC

Latchesar Ionkov
HPC-5

Graduate student at UCSC through the ISSDM Distance Learning Program

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Latchesar Ionkov
UCSC
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Tim Kaldewey
UCSC

Tim Kaldewey is working with Prof. Scott Brandt on Storage QoS.


Shashwat Kandadai
UCSC
Research Projects:

Kevin Karplus
UCSC

Dr. Karplus is teaching a class to LANL students in Bio-Informatics

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Kimberly Kato
ISR-4

Richa Khandelwal
UCSC

Phokion Kolaitis
UCSC

Dr. Kolaitis is teaching a class for ISSDM and his research interests include logic in computer science, database theory, and computational complexity.

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Jonathan Koren
UCSC

Carla Kuiken
T-10

ISSDM CRP Project Mentor


Eric Lalonde
UCSC

Eric is working on a Tool for Data Management Across Heterogeneous Platforms.


David Laone
UCSC
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Herbie Lee
UCSC

Dr. Herbie Lee works in the field of Bayesian statistics, with current primary emphases on computer models (e.g., spatial inverse problems) and connections between statistics and machine learning.

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Jeff LeFevre
UCSC

I am a second year PhD student at the University of California, Santa Cruz, working with the Database Group and advised by Neoklis Polyzotis. I have interests in database systems as well as file and storage systems. My current research is on automated index tuning, and I also work on data management for scientific computing. Some of my other research is on designing a framework for long-term storage, management, integration, and effective querying of various types of Earth Science data.

I received my MS from the University of California, San Diego. My thesis was on extending the reliability and performance of RAID architectures, working under Walt Burkhard in the Systems and Networking group. I earned a BS in Computer Science & Engineering from the University of South Florida, with work on encoding methods for DNA languages. I have spent the last several summers working on storage performance and analysis at Google and previous summers on storage characterization and virtualization at Teradata Labs.

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Andrew Leung
UCSC

Andrew is working on Scalable Security for Petascale, High Performance Storage.


Greg Levin
UCSC

Caixue Lin
UCSC

J Livingston
UCSC

Dr Livingston was a collaborator from UCSC


Suresh Lodha
UCSC

Suresh is a collaborator in computer vision

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Darrell Long
UCSC

Prof. Darrell Long was the founding Principal Investigator and Director of the ISSDM. He is a member of the Science & Technology Committee of LANS, LLC. He is a Fellow of the IEEE and a Fellow of the American Association for the Advancement of Science. His research interests in the storage systems area include high performance storage systems, archival storage systems and view-based file systems. His research also includes computer system reliability, video-on-demand, mobile computing and computer security.

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Kwan-Liu Ma
UCD

Professor Ma teaches Computer Science courses for ISSDM.

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Wesley Mackey
UCSC

Dr. Mackey teaches graduate courses in Computer Science for ISSDM.

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Carlos Maltzahn
UCSC

Dr. Carlos Maltzahn joined the SSRC in January 2005 after five years at Network Appliance. His current research interests include scalable file system data and metadata management, very long-term preservation, network intermediaries, machine learning, information retrieval, and cooperation dynamics.

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Carl G. Maltzahn
INST-OFF

Adam Manzanares
Auburn University

Michael Mateas
UCSC

Benjamin McMahon
T-6
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Ethan Miller
UCSC

Professor Ethan Miller's research interests include scalable metadata systems, long-term archival storage, scale and security in file systems, and file system design for future storage technologies. He is the Associate Director of the Storage Systems Research Center at UC Santa Cruz, and the co-Director of the Center for Research in Intelligent Storage, a joint NSF-funded Industry-University Cooperative Research Center between UC Santa Cruz, the University of Minnesota, and industrial and national laboratory affiliates. Professor Miller was one of the founding co-Principal Investigators of the ISSDM. He continues to teach classes for the ISSDM Distance Learning Program, including Distributed Systems (CMPS 232) and Storage  Systems (CMPS 229).

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Glenn Millhauser
UCSC

Esteban Molina-Estolano
HPC-5

Esteban Molina-Estolano
UCSC

Esteban Molina-Estolano is a second year Ph.D. Student working with Professors Scott Brandt and Carlos Maltzahn on load balancing in object storage.  Esteban's LANL mentors are John Bent, James Nunez, and Gary Grider.


John Musacchio
UCSC

 John Musacchio is an assistant professor with the new Technology and Information Management Program at the University of California Santa Cruz. Professor Musacchio’s research interests include network economics, game theory, stochastic modeling and control of queuing networks with applications in communications networks.

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James Nunez
HPC-5

ISSDM CRP Project Mentor

ISSDM Distance Learning Program Audit Scholarship Recipient

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Katia Obraczka
UCSC

Katia Obraczka is an Associate Professor at UC Santa Cruz's Jack Baskin School of Engineering. Her research and teaching interests include computer networks, distributed systems, Internet information systems, and operating systems. Professor Obraczka teaches Computer Engineering courses for ISSDM.

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Josephine Olivas
INST-OFF

Program Administrator
Information Science and Technology Institute


Alex Pang
UCSC

Dr. Alex Pang is interested in tensor, scientific, and uncertainty visualization. He is also interested in collaboration software.

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Pragneshkumar Patel
T-10

Graduate student at UCSC through the ISSDM Distance Learning Program


Idina Paytan
UCSC

Roberto Pineiro
UCSC

Neoklis Polyzotis
UCSC

Neoklis Polyzotis is currently an associate professor at UC Santa Cruz. His research focuses on database systems, and in particular on autonomic index tuning, highly concurrent data warehousing, and P2P databases. He is the recipient of an NSF CAREER award in 2004 and of an IBM Faculty Award in 2005 and 2006. He received his PhD from the University of Wisconsin at Madison in 2003.

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Uliana Popov
UCSC
Research Projects:

Anna Povzner
UCSC

Linda Preston
UCSC

ISSDM Administrative Assistant

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Reid Priedhorsky
D-4
Research Projects:

Ian Pye
UCSC

Ian Pye is working with Luca De Alfaro working on Information Trust collaborating with HPC-1 and the Research Library.


Xiao Qin
Auburn University

Grace Rathe
UCSC

Grace Rathe is the lead administrator for the ISSDM at UCSC.

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Jose Renau
UCSC

Dr. Renau teaches graduate courses for ISSDM.

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Mario Rodriguez
UCSC

Jorge Roman
HPC-1

ISSDM CRP Project Mentor


Caitlin Sadowski
UCSC

Bruno Sanso
UCSC

Bruno Sanso' has worked in problems related to model selection, meta-analysis and spatio-temporal modelling for rainfall and other environmental variables, always from a Bayesian viewpoint. Currently his work is focused on Bayesian spatio-temporal modeling, environmental and geostatistical applications, modeling of extreme values and statistical assessment of climate variability.

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Genine Scelfo
UCSC

ISSDM Administrative Analyst

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Steve Scher
UCSC

Steve Scher is working with James Davis on Shape and Motion with CCS-2.


M. Schlag
UCSC

Professor Schlag teaches Computer Engineering courses for ISSDM.

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Karl Schnaitter
UCSC

Karl Schnaitter is a sixth-year Ph.D. student.  He is working on COLT (Continuous On-Line Tuning): a framework to automatically optimize the physical design of a database by selecting secondary access structures. His faculty mentor is Dr. Alkis Polyzotis.  Karl's LANL mentors are Gary Grider and John Bent.


Kari Sentz
D-6

ISSDM Distance Learning Program Audit Scholarship Recipient


Andrew Shewmaker
HPC-5

Completed a Master's degree through the ISSDM Distance Learning program.


Benjamin Sims
CCS-6

Shelly Spearing
HPC-1

ISSDM CRP Project Mentor

Shelly Spearing is a Team Leader at Los Alamos National Laboratory, where she has worked in various knowledge management, text manipulation and software quality man
Ingo Steinwart
UCSC

Ingo is a machine learning expert at LANL that collaborates and teaches classes for ISSDM

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Ingo Steinwart
CCS-3

Mark Storer
UCSC

Mark is studying security and cost efficiency in archival storage with Prof. Ethan Miller.


Nathaniel Strong
ADPSM

Christina Strong
UCSC

Josh Stuart
UCSC

Josh Stuart's research group develops computational approaches for predicting gene function and discovering how gene activity is regulated and modulated in response to cellular events and processes. Their methods combine genome-wide functional data across multiple organisms to identify conserved genetic mechanisms. The group has three broad aims: 1) to develop computational models to predict gene function, 2) to integrate datasets across multiple organisms to identify core molecular pathways, and 3) to develop algorithms and resources for biological discovery. Stuart also collaborates with numerous colleagues at UCSC and elsewhere to predict molecular targets of drugs, causal networks in disease, and pathways involved in stem cell differentiation.

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Sriram Swaminarayan
CCS-7

ISSDM CRP Project Mentor

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Milan Sykora
C-IIAC

Wang-Chiew Tan
UCSC

Dr. Tan teaches graduate courses for ISSDM.

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Wang-Chiew Tan
UCSC

Hai Tao
UCSC

Dr. Tao teaches graduate courses for ISSDM.

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Nicole Targowski
UCSC

James Theiler
ISR-2

ISSDM CRP Project Mentor

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Aaron Tomb
UCSC

Rajan Vaish
UCSC
Research Projects:

Herbert Van de Sompel
STBPO-RL

ISSDM CRP Project Mentor


Allen Van Gelder
UCSC

Dr. Allen Van Gelder research interests include development of algorithms for propositional satisfiability, methods for verifiable software, theorem proving, analysis of algorithms, parallel algorithms, computer graphics, and scientific visualization. He received a National Science Foundation Presidential Young Investigator Award in 1989 to investigate the use of logic programming for problems in database and artificial intelligence systems.

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Anujan Varma
UCSC

Dr. Varma teaches graduate courses for ISSDM.

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Dung Vu
C-PCS

Rosie Wacha
HPC-5

Rosie Wacha
UCSC

Rosie Wacha is a Ph.D. student working with Prof. Brandt on using solid state disk drives in distributed storage systems. Rosie's LANL mentors are John Bent, Gary Grider, and James Nunez.

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Mark Wagner
UCSC
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Manfred Warmuth
UCSC

Dr. Manfred Warmuth works in the areas of Machine Learning and Recognition.

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Noah Watkins
HPC-5

Noah Watkins
UCSC
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Jim Whitehead
UCSC

Don Wiberg
UCSC
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Tomas Witten-Hannah
UCSC

ISSDM Cluster Administrator

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Stan Woosley
UCSC

Joel Wu
UCSC

Joel works on Providing Quality of Service Support in Object-Based File Systems with Prof. Scott Brandt.


Ming_Hsuan Yang
UCM

Huahai Yang
UCSC
Research Projects:

Janelle Yong
UCSC
Research Projects:

Kai Yu
UCSC

Statistic machine learning, Bayesian probabilistic models, Gaussian Processes, Collaborative filtering, user modeling,   Learning from relations,  Multi-task learning, Text and web mining, data mining, and information retrieval.

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Yi Zhang
UCSC

Dr. Yi Zhang research interests include large scale information retrieval and knowledge management, natural language processing, and applied machine learning.  Dr. Zhang teaches Information Systems Management courses for ISSDM.

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Lanbo Zhang
UCSC

Lanbo Zhang is pursuing a Ph.D in Computer Science at the University of California - Santa Cruz.  His research interests are in Information Retrieval, Applied Machine Learning and Adaptive Information Filtering.

Research Projects:

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