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CS Colloquium - Mounika Alla


 An Interactive Java Program for Creating Regular Repeating Hyperbolic Patterns 

Mounika Alla

Computer Science Graduate Student

Plan B Project Report

Wednesday, June 3, 2015
2:00 pm

HH 306


Repeating patterns in art is the repetition of lines, shapes, colors and forms. A popular Dutch artist named M.C. Escher created repeated patterns by hand which was very tedious and time consuming process. Later algorithms were developed to solve this problem and different programs exist to generate the repeating patterns in less time. The proposed work is an extension of an existing work for generating regular repeated hyperbolic patterns developed by Maneesha Vejendla in java. The Java program accepts a data file which has all the information for creating patterns or it allows the users to create a new data file. It then applies the algorithm on the data and displays the output on the interface. The user will be able to modify the pattern at a later stage. The output will also be saved as a post script file. The main objective of this project is to extend the capabilities of the java program to provide better usability for users. Previous work requires the users must know the exact Poincare coordinates to draw different shapes. But the current work allows the users to specify the coordinates just with a single mouse click. It also checks the error conditions when drawing different shapes such as circles, polygons. It also supports different colors for drawing the shapes which is very useful when creating a new data file.

Author: cford


Professor Ted Pedersen in the News


Ted Pedersen, professor, Department of Computer Science, developed systems that participated in two shared tasks recently. These events invite researchers from around the world to evaluate their systems on the same tasks and data during a limited period of time. The first concluded in December and involved automatically creating dictionary entries for words based on written samples of text. This was a part of the Semeval-2015 Semantic Evaluation exercise. The second wrapped up in March and automatically screened Twitter users for signs of Depression and Post Traumatic Stress Disorder (PTSD). This event was held in preparation for the 2nd Annual Computational Linguistics and Clinical Psychology Workshop.

Author: cford


UMD CS Scholarship Donation Page


NEW! UMD CS Giving Page!

Please support UMD Computer Science students? Make a Gift Online! UMD CS now has an online Giving Page. If you would like to support the UMD Computer Science Department Scholarship Fund please visit our Computer Science Giving Page link below. For other options and additional information contact Carrie Kayes in the the SCSE Development Office. The giving page link is also on our CS webpage. Click the "How You Can Help" button to the left.

Author: cford


UMD MMAD Lab - Media in Motion Across Disciplines Lab


Updated: 04/03/2015 7:14 PM
Created: 04/03/2015 7:07 PM
By: Heidi Enninga

UMD is now home to technologies that seem almost like science fiction, but the university said students and faculty will use creative technology in a new Motion and Media Across the Disciplines or MMAD Lab to solve the 21st century's most complex problems.

The new state-of-the-art MMAD Lab is designed to be a crossover space where faculty, students and even community members can collaborate for creative and innovative research across areas of study from dance to exercise science.

Students and faculty showcased the MMAD Lab at a ribbon cutting Friday morning.

A ballerina performed a choreographed number in sync with a digital version of herself to showcase motion capture technology and a collaboration between the theatre and exercise science departments.

The technology uses data from sensors attached to a person's joints. As the person moves, motion capture cameras use infrared light reflecting from the cameras to the sensors to detect and plot movement in a computer system. The coordinated data then can show where the plot points are in a -D model.

Those same cameras and infrared lights can be a transport to virtual reality. Pete Willemson teaches computer science at UMD. His students programmed a virtual environment that people can actually explore and interact with.

"It's like taking Skype to the next level, of 3-D Skype where you are in a space with someone. You are in that social experience with someone," Willemson said. "I think it's pretty spectacular."

The virtual reality technology is often used for 3-D movies and games. Willemson said it can also be used for when a theatre group wants to design and build a set. They can build a virtual model and actors can actually walk and interact in the virtual set before a physical set is ever created.

UMD graduate students Logan Sales is studying computer science and working in the lab, and he said the effectiveness of virtual reality don't stop with entertainment.

"A lot of other uses are in therapy dealing with phobias or PTSD, things that people can be trained to deal with better without actually having to experience it physically," Sales said.

The addition of the MMAD lab, Sales said, has helped him experience what he's building on the computer, and he said it's made limitations on creativity and innovation because of systems a thing of the past.

"Whatever you want to experience, with enough time, we can make it happen," Sales said.

Funds for this lab came from a grant prepared by faculty from five different disciplines at UMD.

"We can explore the future here," Willemson said."It's a support of for doing the types of research that we want to do at this university."

Here are some news links. Each one is a little different.

Author: cford


MHTF 2015 Undergrad Scholarship


Minnesota High Tech Association Foundation (MHTF) Scholarship

We are currently accepting applications for the Minnesota High Tech Association Foundation (MHTF) Scholarship. The scholarships are for Minnesota undergraduate students in science, technology, engineering and math (STEM) disciplines. These awards include $2,500 and $5,000 awards and can include internship opportunities at MHTA member companies. MHTF supports diversity in this application and award process.

Eligibility requirements:
* Must be pursuing an undergraduate degree in a STEM field or in STEM teaching
* Only students with sophomore through senior academic status in the current school year may apply. Sophomore status may include students who have achieved this status through advanced placement (AP) credit or post-secondary options (PSEO)s
* Applicants must be enrolled at an accredited, Minnesota-based higher education institution.
* In addition to traditional STEM fields, health science majors whose studies will not lead to participation in direct patient care are welcome to apply.
* Scholarships will be awarded in the fall term of 2015 and presented to recipients at MHTA's Tekne Awards in November. Students must be enrolled at time of award.
* Deadline for application is April 1, 2015.

Tim Barrett
Director of STEM Education & Workforce Development
Minnesota High Tech Association (MHTA)
Direct: 952.230.4551
MHTA fuels Minnesota's prosperity through innovation and technology.

Author: cford


Internship Talk at ACM Club


Internship Talk and Prospective Spring 2015 Calendar

Next week, January 28th, we'll have members discuss and describe their internship experiences.  These members will be available for questions and contact information.  We'll also talk about which electives would be most helpful for the different kind of internships.

Come join us in Heller Hall 338 Wednesdays at 4:00pm!

Calendar has prospective club meetings and discussion topics.

Author: cford


Professor Pedersen Presents Paper


Ted Pedersen, professor, Department of Computer Science, co-authored a paper presented at the Annual Symposium of the American Medical Informatics Association (AMIA), which took place in Washington, D.C., in November. The title of the paper is "U-path: An undirected path-based measure of semantic similarity." One of his co-authors is UMD alumna Bridget McInnes, who is now an assistant professor at Virginia Commonwealth University. The other co-authors include Genevieve Melton, University of Minnesota Medical School, Serguei Pakhomov, University of Minnesota College of Pharmacy, and Ying Liu, The Advisory Board Company.

Author: cford


UMD Computer Science students win DKC3, DigiKey's Collegiate Computing Competition 2014!


Three UMD CS students, Jonathan Beaulieu, Bridget Coughlin, and Scott Redig, formed the team Pointless Pointer and competed against twenty-three other teams from around the area. For the first time in the competition's history, two teams tied for first place after the word, short, and long problem sections: UMD and Bemidji State University. UMD scored very well on the tie-breaker problem to win the competition.

Author: cford


Science, social science, and art collide at the UMD MMad Lab


The MMad Lab is a mashup of three UMD colleges and five departments, resulting in a high-tech fueling of artistic wonder and groundbreaking research. Check out the article at

Author: cford


1 day, 2 Colloquiums: "Artificial Intelligence & Research" and "Effective Learning of Probabilistic Models from Structured Data"



Presented by
Dr. Sriraam Natarajan 
School of Informatics & Computing Indiana University
Both topics will be on
Friday, September 26, 2014
UMD Engr 290

topic One:
9:00 A.M. - Effective Learning of Probabilistic Models from Structured Data

Statistical Relational Learning (SRL) Models combine the powerful formalisms of probability theory and first-order logic to handle uncertainty in large, complex problems. In this talk, I will review the progress in this area. First, I will provide a historical outlook of this field by covering some of the seminal work in the area. Then, I will discuss state-of-the-art learning method in this area that is representation independent. I will also discuss about how this learning can leverage from rich human interaction. Finally I will conclude by discussing some of the possible "killer apps" for this area.

12:00 P.M. - Artificial Intelligence and Research      

Dr. Natarajan will discuss some exciting new directions in research and also about attending graduate school for interested students.

Author: cford


Professor Doug Dunham' Artwork on Exhibit


Three prints, designed by Professor Doug Dunham and John Shier, were selected to be displayed at the conference art exhibit at the Bridges 2014 Conference in Seoul Korea, August 14-19, 2014.

"Yin-Yangs in a Circle",
"Circles in a Yin-Yang", and
"Yin-Yangs in Yin-Yang"
can be viewed at the Mathematical Art Gallery at:

One of them, "Circles in a Yin-Yang" was chosen as the background for the
cover of both the conference proceedings and the art exhibit catalog.

The cover of the proceedings can be seen at:

In addition, the three prints were donated as Object 4,
"Aesthetic Fractals", to the IMU

(International Mathematical Union) "DonAuction"
(, an auction to raise funds for the IMU
program called “Adopt a Mathematics Graduate Student”, to help young,
talented students from developing countries to gain access to assistantships
in other developing countries.
The three prints raised $500 for the program.

Author: cford


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