Greetings from the CSE Interim Chairman
Dear CSE Alumni and Friends,
In Spring 2011, several CSE faculty members are featured in
UNT Research, a publication that focuses on science, scholarship
and the arts at UNT. Dr. Saraju Mohanty's research in nanoelectronics was
also featured in the Texas Innovator, a publication of the Texas
Comptroller. Our Game Programming students are collaborating with art
students at Gallaudet University. The CSE Department recently hosted
the regional competition for the North American Computational
Linguistics Olympiad (NACLO).
Ranette Hudson Halverson is our Alumni Focus in this edition. Dr.
Halverson graduated with a Ph.D. in Computer Science in December 1993
and now serves as Professor and Chair of the Department of Computer
Science at Midwestern State University (MSU) in Wichita Falls, Texas
where she has had a distinguished career.
In our Student News section, Dr. Armin Mikler had two students
graduate with their doctoral degrees in December and Dr. Yan Huang had
two students defend their dissertations. Congratulations to Yiwen Wan
for receiving the WTS scholarship because only one of these awards is
presented each year to a graduate student in the Texas-Oklahoma
You are invited back to UNT to participate in our CSE Department. Find
out below how you can help our UNT Robotics Society or be a "Professor
for a Day." We welcome your participation and look forward to seeing
you again. Thanks for supporting CSE and UNT!
Professor and Interim Chair
Department of Computer Science and
UNT Research features CSE faculty
is a publication that focuses on science, scholarship
and the arts at the University of North Texas. Several faculty members
in the Department of Computer Science and Engineering are featured in
the Spring 2011 issue.
Dr. Saraju Mohanty is featured in an article on Advancing
Nanotechnology, "At One Billionth of a Meter, Scientists Create on the Cutting Edge".
Dr. Mohanty is an associate professor in the Department of Computer
Science and Engineering and director of CSE's Nanosystem's Design Laboratory. Dr. Mohanty researches hardware design and is working to create
batteries with a longer life.
Dr. Song Fu, CSE assistant professor, is featured in "Faculty Researchers, UNT Welcomes New Experts".
Dr. Fu is the newest member of the CSE faculty and director of the Dependable Computing Systems Lab.
All new UNT faculty members are featured in this article.
Four CSE faculty members are featured in the News
Brief section. Dr. Armin Mikler, CSE associate professor, is
featured in the article titled "Emergency Response." Dr. Mikler has
received a National Institutes of Health Stimulus grant to research
the development of a regional response plan that can provide necessary
health services to a population in the event of bioemergencies.
Also in the News Brief section in "Mining Historical Newspapers," the work
of CSE associate professor, Rada Mihalcea, appears in a project funded
by a grant for developing search models for digitized historical
newspapers from the Office of Digital Humanities, a division of the
National Endowment for the Humanities.
Dr. Bill Buckles, CSE professor, is featured further down in the same
News Brief section. Dr. Buckles was awarded funds by the Norman
Hackerman Advanced Research Program for "Adding Value to Sparse LiDAR
Elevation Data." This project will work to fuse LiDAR data with visual
images to building large-scale 3-D maps for potential use with
construction projects or in disaster management and other areas that
require the quick collect of topographic data.
Finally in the News Brief section, CSE assistant professor Dr.
JungHwan Oh's research is featured in "Colon Cancer Screening." Dr.
Oh is developing software to improve colonoscopies so polyps can be
better detected and lives saved. Dr. Oh's funding includes a grant
from the National Institutes of Health.
CSE hosts NACLO 2011
The regional competition for the 2011 North American Computational
was hosted on February 11, 2011 by the Department of Computer Science
and Engineering at the University of North Texas. Almost 30 high
school students from North Texas participated in this competition.
NACLO is an educational competition in Computational Linguistics, the
science of designing computer algorithms to solve linguistic problems.
It challenges students to develop strategies for tackling problems in
fascinating real languages and formal symbolic systems.
Rada Mihalcea, Associate Professor, and Genene Murphy, Student
Assistant, supervised this event, along with Carmen Banea, Samer
Hassan, and Ben Leong. Special thanks to Kevin Roden, Assistant
Director of Student Life, at Texas Academy of Mathematics and Science
(TAMS) for providing McConnell Hall as a location for the competition.
To see more pictures of this competition, go to this media gallery page.
Dr. Mohanty's research featured in Texas Comptroller's Publication
As major milestone to UNT's cutting-edge research in nanoelectronics,
Dr. Saraju Mohanty's research is featured the article
"Longer battery life for the devices we love" in Texas Innovator which is
a publication of the State of Texas Comptroller. Dr. Mohanty's
research also appears in the article "Nanoelectonics of the Future" in
the current version of UNT Research.
In the last semester, the research group from the NanoSystem Design
presented two papers at the International Symposium on Electronic
System Design (ISED)
which was held in Bhubaneswar, India. This is a blind review
conference in which acceptance rate was 34%. Two papers with the titles
"Nano-CMOS Mixed-Signal Circuit Metamodeling Techniques: A Comparative
Study" and "Design of a Reconfigurable Embedded Data Cache" were
presented. The ISED symposium provided major visibility to UNT in the
eastern part of India. The event ISED was well covered by several
leading newspapers including The Times of India,
The New Indian Express, and Orissa Today.
Game Programming classes collaborate with Gallaudet University students
Dr. Ian Parberry's game programming students are doing something
new and exciting this semester. Undergraduate students in CSCE 4220,
Game Programming II, and graduate students in CSCE 5260,
3D Game Programming, are going to work with art students enrolled
in one of Max Kazemzadeh's art classes at Gallaudet University.
Gallaudet, located in Washington, D.C., provides liberal education and
career development for deaf and hard of hearing students.
The students met for the first time via Skype on
Monday, February 7, 2011. The students plan to communicate using
technologies such as Skype, text messaging, email, and a Subversion version
control system running on a server in UNT's Laboratory for Recreational
For more information on this collaboration, please go to this LINK.
News from the Information Management and Knowledge Discovery Lab
At the SIGSpatial ACM
GIS Conference in November 2010, Dr. Yan Huang received
the ACM SIGSpatial Distinguished service award. The paper titled
"T-Drive: Driving Directions Based on Taxi Trajectories" won Best
Paper Runner-up. It was co-authored by Dr. Huang and Ph.D. student,
Chengyang Zhang, in addition to J. Yuan, Y. Zheng, W. Xie, X. Xie and
|Dr. Yan Huang and Hanan Samet|
Two students in the IMKD lab recently defended their dissertations.
Roopa Vishwanathan defended her dissertation in November. Chengyang
Zhang defended his dissertation in January. Please read about their
dissertation defenses in the Student News section below.
For more information about the IMKD lab, please go to http://imkd.cse.unt.edu/.
Dr. Tarau presents paper
Dr. Paul Tarau has presented the paper Concurrent Programming
Constructs in Multi-engine Prolog at the "Declarative Aspects of
Multicore Programming" POPL'2011 workshop
in Austin, TX.
The paper describes the use of a combination of
coroutining constructs with focus on expressiveness and a simplified
multi-threading API to ensure optimal use of a desired number of cores
running independent logic engines.
David Keathly presents workshop
David Keathly presented a workshop on IT Education for a Mobile
Society at the Winter ICT Educator Conference held in San Francisco, CA in January 2011.
This conference had presentations about broadband, mobile computing
devices, social media and other topics.
Mr. Keathly's presentation was about the use of social media and
mobile device technologies in the classroom. Mr. Keathly's
presentation can be heard HERE.
News for Alumni
Ranette Hudson Halverson graduated with the Ph.D. in Computer Science
in December 1993 with a research emphasis in parallel algorithms. Her
dissertation, entitled Efficient Linked List Ranking Algorithms and
Parentheses Matching as a New Strategy for Parallel Algorithm Design,
was completed under the direction of former faculty member Dr. Sajal
K. Das. She published four papers as a direct result of the
Introduction to Parallel Processing Through Example, Journal of
Computing in Small Colleges.
A Divide-and-Conquer Hypercube Algorithm for Parentheses Matching,
Proceedings of the World Multiconference on Systematics, Cybernetics
Simple Deterministic and Randomized Algorithms for Linked List
Ranking on the EREW PRAM Model, Parallel Processing Letters.
Efficient Parallel Algorithms for Tree-Related Problems Using the
Parentheses Matching Strategy, Proceedings of the 8th International
Parallel Processing Symposium.
She has published more than 30 professional papers in journals and
conference proceedings, presented most of her papers at conferences
and conducted numerous workshops in a variety of research and
Dr. Halverson currently serves as Professor and Chair of the
Department of Computer Science at Midwestern State University (MSU) in
Wichita Falls, Texas where she has had a distinguished career. She
has received 7 research grants, the most noteworthy of which was a
$240,000 NSF grant received in 1997 in support of research in the area
of parallel architecture. (Dr. Nelson Passos of MSU was the Co-PI.)
Other grants supported work in geographical positioning systems (GPS)
and computing education.
Dr. Halverson has received several awards over the years. While at
UNT she was inducted into Upsilon Pi Epsilon, Computer Science Honor
Society. In 1992 she received the faculty award at MSU. The recipient
of this award is elected by the faculty in recognition of teaching
excellence and service to the university. In 1996 she was named the
Outstanding Alumni for the Division of Mathematical Sciences at MSU.
In 1998 she was name Hardin Professor at MSU, the highest award
presented to a MSU faculty member in recognition of academic
contributions and accomplishments.
Dr. Halverson began her educational career in Burkburnett, Texas where
she graduated high school. At Midwestern State University (MSU) she
completed a Bachelor of Science degree in mathematics and biology and
a Master of Science degree in mathematics in 1978. She began her
career utilizing her mathematical skills as the first Statistical
Crime Analyst for the Wichita Falls Police Department where she worked
for 3 years. During that time she was given the task of helping
convert the manual records system to a computerized system. It was at
this time that her interest in computing truly began. As a result of
this interest, she was recruited by MSU to join the Department of
Mathematics to assist in the development of a Computer Science Program
In 1980 she joined the faculty of MSU as an instructor of mathematics
but with the primary responsibility to develop and teach computer
science courses. Over the next several years, the university
officially formed the Department of Computer Science initially
offering a Bachelor of Science degree. She was involved in the
expansion of the Department to include a Master of Science degree and
a Bachelor of Arts degree in Computer Science.
Dr. Halverson enjoys a full life outside academia. She and husband
Patrick live in Wichita Falls where they maintain a vigorous health &
fitness schedule and enjoy traveling. They have two married sons,
Andrew & wife Valerie and Stuart & wife Melody and granddaughter
Cadence. In addition, Dr. Halverson coordinates the women's ministry
at her church. She greatly appreciates the many opportunities that
her UNT computer science education has afforded her.
We want to hear from you! What have you been doing since graduating from
Please send a few paragraphs and a picture to CSEAlumni@unt.edu
Alumni invited to help the UNT Robotics Society
|UNT Robotics Society President, Michael Mischo, and BOB
seated in the golf cart. From L to R in the back are Matt Ponce,
Nathanael Mathis, David Lowery, Jordan Simleness, Randy Burrow, Chase
Przilas, Mark Moudy, Andrew Hagar, Brett McCormick, James Spiares,
Patrick Schollenberger, and David Keathly, advisor.|
The Spring organizational meeting of the UNT Robotics Society was
held on January 28, 2011. David Keathly, advisor, talked about the
opportunities for the group this Spring. There are several robotics
competitions in which the Robotics Society might compete, including
the Dallas Personal Robotics Group (DPRG) and Microsoft's Imagine Cup
The UNT Robotics Society will have more formal meetings with speakers
and trips in the upcoming semester. David Keathly invited students to
suggest ideas for activities and fundraising. He said it is possible
the group could seek affiliation with the IEEE Robotics Society, if
there are 12 students who join the IEEE and the Robotics Society.
Joining IEEE would help the group gain a higher visibility and
provides students with a number of other benefits as well, Keathly
All students from the College of Engineering are invited to join from
the fields of computer engineering, mechanical engineering and
electrical engineering as well as engineering technology. Right now,
Keathly said, the group is working on automating a golf cart and
building a RC car-based drunk driving game/simulation for National
Engineering Week, as well as preparing for competitions.
Alumni are welcome to participate as part of the society in many ways.
We are always in need of guest speakers and subject-matter experts to
help with our projects. Sources for parts donations are also welcome
as well as sponsorships for competitions. You are also welcome to just
come out and have some fun with us! Regardless of your interests,
please contact David Keathly for more
information. The Robotics Society meets every Friday at noon in the
Senior Design Lab, F260, at Discovery Park, and other times as needed.
Be a "Professor for a Day"
The UNT College of Engineering and the CSE Department will celebrate
National Engineers Week February 21-25, 2011. You are invited to come
back to UNT to be a "Professor for a Day." All you need is a desire to
share your knowledge and experience with our undergraduate or graduate
|Professor for a Day Andy Borman
(M.S. in Computer Science in 2006) with Don Retzlaff in CSCE 4410 and 4420|
We welcome the opportunity to have you talk about your career
experiences in Computer Science or Computer Engineering fields in our
classes. If you can't come during National Engineers Week, you are
invited to come when it is convenient for you. Check out the Spring 2011 schedule
and contact Genene Murphy
if you would like to be a "Professor for a Day" in our CSE Department.
Join UNT Computer Science alumni on Facebook
If you haven't checked us out yet on Facebook, please become an alumni
Don Retzlaff maintains this page and posts department news there. So far
there are just over 100 members and we hope you will become one too!
Facebook has several other UNT Alumni pages, including the UNT Alumni
Association. You can visit their page HERE. University of North Texas
has its own Facebook page HERE.
Join the UNT Computer Science Alumni page on Facebook now!
Two Ph.D. Graduates in Computer Science and Engineering
Tina Johnson received her Ph.D. in Computer Science and
Engineering at the December 2010 UNT graduation. Tina is pictured here
with Dr. Armin Mikler, her major professor.
Tina defended her dissertation "The Influence of Social Network Graph
Structure on Disease Dynamics in a Simulated Environment" in July
2010. In addition to Dr. Mikler, other dissertation committee members
included Dr. Suhasini Ramisetty-Mikler,
Dr. Philip H. Sweany, Dr. Samuel F. Atkinson,
and Dr. Xiaohui Yuan.
Tina is an assistant professor in Computer Science at Midwestern State
University in Wichita Falls, TX.
Tamara Schneider graduated with her Ph.D. in Computer Science
and Engineering at the UNT graduation in December 2010. Tamara's
major professor was Dr. Armin Mikler, associate professor in the
Department of Computer Science and Engineering.
Tamara defended her dissertation "A Framework for Analyzing and
Optimizing Regional Bio-Emergency Response Plans" in October 2010.
In addition to Dr. Mikler, her dissertation committee consisted of
Dr. Robert Renka, Dr. Chetan Tiwari,
Dr. Rada Mihalcea, and Dr. Yan Huang.
Tamara is now a post-doctoral research associate with the UNT Computational Epidemiology Research
CSE Students defend Ph.D. Dissertations
Roopa Vishwanathan defended her dissertation "Exploring Privacy
in Location-based Services Using Cryptographic Protocols" on
November 22, 2010. In the picture above, from left to right, are
Dr. Yan Huang, major professor and associate CSE professor;
Roopa Vishwanathan; Dr. Steve Tate, former UNT CSE faculty member
and now head of the Computer Science Department at the University of North
Carolina at Greensboro; Dr. Armin Mikler, associate CSE
professor; and Dr. Bill Buckles, CSE professor.
Dissertation Abstract: Location-based services (LBS) are
available on a variety of mobile platforms like cell phones, PDA's,
etc. and an increasing number of users subscribe to and use these
services. Two of the popular models of information flow in LBS are the
client-server model and the peer-to-peer model, in both of which,
existing approaches do not always provide privacy for all parties
concerned. In this work, we study the feasibility of applying
cryptographic protocols to design privacy-preserving solutions for LBS
from an experimental and theoretical standpoint. In the client-server
model, we construct a two-phase framework for processing nearest
neighbor queries using combinations of cryptographic protocols such as
oblivious transfer and private information retrieval. In the
peer-to-peer model, we present privacy preserving solutions for
processing group nearest neighbor queries in the semi-honest and
dishonest adversarial models. We apply concepts from secure
multi-party computation to realize our constructions and also leverage
the capabilities of trusted computing technology, specifically TPM
We prove our constructions secure under standard cryptographic
assumptions and design experiments for testing the feasibility or
practicability of our constructions and benchmark key operations. Our
experiments show that our constructions are practical to implement and
have reasonable costs, while providing strong privacy assurances.
On January 3, 2011, Chengyang Zhang successfully defended his
dissertation "Toward a Data-Type-Based Real Time Geospatial Data
Stream Management System." Dr. Yan Huang served as his major
professor and dissertation advisor. In the picture above, from left
to right, are Dr. Xinrong Li, associate professor in the
Department of Electrical Engineering; Dr. Bill Buckles,
professor in the CSE Department; Chengyang Zhang,
Dr. Yan Huang, associate CSE professor; and
Dr. Armin Mikler, associate CSE professor.
Dissertation Abstract: The advent of sensory and communication
technologies enables the generation and consumption of large volumes
of streaming data. Many of these data streams are geo-referenced.
Existing spatio-temporal databases and data stream management systems
are not capable of handling real time queries on spatial extents. In
this thesis, we investigated several fundamental research issues
toward building a data-type-based real time geospatial data stream
management system. The thesis makes contributions in the following
areas: geo-stream data models, aggregation, window-based nearest
neighbor operators, and query optimization strategies. Our proposed
geo-stream data model is based on second-order logic and multi-typed
algebra. Both abstract and discrete data models are proposed and
exemplified. We further propose two useful geo-stream operators,
namely Region By and WNN, which abstract common aggregation and
nearest neighbor queries as generalized data model constructs.
Finally, we propose three query optimization algorithms based on
spatial, temporal, and spatio-temporal constraints of geo-streams.
We show the effectiveness of our data model through many query
examples. The effectiveness and the efficiency of the algorithms are
validated through extensive experiments on both synthetic and real
data sets. Our work established the fundamental potential impact in
many applications such as hazard weather alerting and monitoring,
traffic analysis, and environmental modeling.
Yiwen Wan receives scholarship from WTS
It was announced in December that Yiwen Wan will be presented the
Wanda J. Shafer Graduate Scholarship at the March meeting of the local
chapter of WTS (Women in Transportation Seminar). The Wanda J. Shafer
Graduate Scholarship was established in 2002 in honor of the first
chapter president of the Dallas/Fort Worth chapter. Each year, only
one such scholarship is awarded to a graduate student in the
|Yiwen Wan and colleagues assembling traffic surveillance equipment on Loop 288|
As evidence of her contribution, Ms. Wan submitted a video-based
traffic surveillance system for which she leads the development.
Specifically designed for remote locations, the system communicates
via wireless to the base station. The camera autonomously calibrates
and, in addition to collecting traffic statistics, watches for
Ms. Wan is currently a Ph.D. student in the Department of Computer
Science and Engineering, working in the Computer Vision Lab. Under the
guidance and instructions of Dr. Huang and Dr. Buckles, she and Ning
Luo have been cooperating on a project sponsored by TxDOT. Ms. Wan's
research interests are image processing, computer vision, pattern
recognition and data mining. In the future Ms. Wan hopes to contribute
to the progress of intelligent transportation systems and security
surveillance systems to help build safer and smarter cities.
Ms. Wan is grateful that her group has made great progress on the
TxDOT project and thanks all of her group members. She would like to
thank UNT for all their support and help they offered to build the
wireless monitoring system at Discovery Park and on main campus. She
is also grateful that WTS has been creating great opportunities for
advancing the careers of women in transportation.
College of Engineering News
UNT Society of Hispanic Professional Engineers
|SHPE meeting on January 26. Kneeling in front (L-R): Tony Rivera,
Adrian Cepeda, Luis Delmar, Javier Altamirano, Oscar Angulo. Standing
in back (L-R): Casandra Manning, Oscar Chavira, Monica Salazar, David
Lowery, Maximo Delgado, Katherine Villafuerte, Hector Curi, Juan Meza,
David Ayo, Raul Asencio, Cakra Wicaksono, SHPE Co-Advisor Leticia
The mission of the Society of Hispanic Professional Engineers
at UNT (SHPE UNT) is to be the Source for Quality Hispanic Engineers and
Technical Talent. SHPE is one of the leading organizations in science,
engineering, mathematics, and technology. We accomplish our mission
through professional, career, and leadership development opportunities
throughout the semester and are involved with community outreach
projects. In October 2011 students will get to put these skills to the
test in one on one interviews with representatives from well-known
companies at the SHPE
National Conference in Anaheim, California. This past year's
conference featured companies such as Boeing, Intel, GM, Microsoft,
Raytheon, Verizon and many more.
Our organization is open to students of all majors and ethnicities.
Our meetings are scheduled the 2nd and 4th Wednesdays of every month
at 6:30 in Discovery Park, room B192. We are conducting an outreach
project February 25th with middle school students. For more
information and updates, join us on our Facebook community page under
SHPE UNT, or email us at email@example.com.
CENG offers SUPER in Summer 2011
The UNT College of Engineering will offer a SUPER summer for
undergraduate students again in 2011. SUPER stands for Summer
Undergraduate Program in Engineering Research. This program will give
undergraduate students an opportunity to conduct research projects for
eight weeks during the summer.
The SUPER program is from June 6 to July 29, 2011 and is oriented
toward students who have completed at least two years of study in
Computer Science, Computer Engineering, Electrical Engineering,
Mechanical Engineering, or Materials Science and Engineering with a
cumulative grade point average of 3.5 or higher at the end of the Fall
2010 semester. Students who graduate at the end of the Spring 2011
semester are not eligible for this program.
Applications for the SUPER program, two letters of recommendation and
an official transcript are due to the UNT College of Engineering by
March 1, 2011. For more information and the online location of the
application form, please go HERE .
CENG celebrates National Engineers Week
The Council of Engineering Organizations is hosting its annual
celebration of National Engineers Week February 21-25 to promote and
educate others about the field of engineering as a profession. On
February 21, John E. Morris, Sr. Design Engineer for Peterbilt will
speak at a kick-off luncheon for CENG students, faculty and staff.
Other highlights of the week are ASME and Sigma Sigma Pi's Winch &
Cart Race Competition, AGC and NAHB's soccer competition, the
CANstruction Competition, and a Gaming Tournament. The UNT Career
Center and UNT Cooperative will sponsor a Career Fair in the hallways
of Discovery Park and SHPE will sponsor an outreach project with
middle school science students. Two field trips will also occur this
year for engineering students. One will take place on February 18 to
the Wolf Ridge Wind Farm and the other will take place on February 25
to the FAA offices and a special behind the scenes tour at DFW
International Airport. For more details, see this schedule.
COMING UP at the COLLEGE OF ENGINEERING|
DESIGN DAY — Friday, April 29, 2011
Poster Presentations and Project Presentations
by CENG Students
University of North Texas News
Enrollment Record set for Spring 2011
The University of North Texas set a new spring enrollment record for
2011 with 34,155 students. This is a 4.6 percent increase over Spring
2010, according to the unofficial 12th class day census. This increase
in enrollment reflects the increase in class retention and new
Growth in retention means UNT is not just enrolling more students but
also is keeping those students focused on graduation. This past year,
UNT awarded more than 7,800 degrees. In December, UNT graduated 2,771
students, an increase of 8.7 percent over December 2009. In addition,
UNT continues to be the leading destination for transfer students in
Texas. A total of 1,630 new transfer students are enrolled this
"As a public university, we are committed to providing the students of
Texas the highest-quality education at affordable costs. And Texas
needs more students in higher education so I am pleased that our
enrollment continues to grow just as I am pleased that we remain
equally as focused on growing our strengths in research," said V. Lane
Rawlins, president of UNT.
For more information on UNT's growing enrollment, see this UNT press
UNT opens Design Research Center in Dallas
A new UNT Design Research Center (DRC) has opened in downtown Dallas
at 1908 Elm Street. This new center will serve as an "urban
laboratory" where graduate students and faculty members can spark and
sustain design-driven solutions to pressing contemporary problems.
Keith Owens, associate professor in Communication Design, is the
Director of the Design Research Center, which is led by the UNT
College of Visual Arts and Design (CVAD) in conjunction with the
Department of Design. Owens said, "This urban laboratory is helping
the College of Visual Arts and Design answer the challenge for UNT to
become a Tier One research university."
For more information, see this UNT press
release or visit the Design
The CSE Email Newsletter was assembled and produced by Genene Murphy
and Don Retzlaff. It is a publication of the UNT Computer Science and
Engineering Department. Contact the department at firstname.lastname@example.org.
If you would like to receive this newsletter as text rather than
formatted in HTML, please contact Don Retzlaff at email@example.com.
http://www.cse.unt.edu UNT Computer Science and
Engineering Department — February 2011