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College of Information

Science and Technology

Visit our home page at www.ist.unomaha.edu

Building from scratch

Swarming like ants

GISC internship sharpens skills

Finding value working for real-world clients are, from left, Shoira Tahirova, Kevin Engelkamp, Matthew Bentz and Jan Beier. Photo by Tim Fitzgerald/University Relations.

Building from scratch

Students thrive in Applied Business Simulation Class

Officials at Avantas say that when they agreed to serve as a real-world client for the teams of students in the spring semester Applied Business Simulation class, they were hoping for, at the most, a baseline model they could utilize as they determine the feasibility of taking one of their products to a new city.

They got more.

"The students were creative and added pieces in their models that are more complex than we expected," says Michelle Krapfl, vice president of operations and administrative services at Avantas, an Omaha company that works with health care organizations throughout the United States to provide work strategies and products that address nursing staff shortages.

"In fact, we will be using one of the student team's models as a starting point," Krapfl says. "It's 90 percent there, and it's been built in such a flexible way that we can make the changes and tweak the information as needed."

The first-time class is being taught by Dr. Gerald Wagner, distinguished research fellow at UNO's College of Information Science & Technology (IS&T). He says the class fills an immediate need to provide students with intensive, real-life experiences of creating business models."I feel that, for the most part, we have lost the art and the science of teaching simulation modeling in our universities," Wagner says. "We teach Excel with fill-in-the-blank examples, but we don't teach the students how to model the decision processes associated with decision making.

"We don't teach how to build complex models from scratch where they can ask 'What if?' questions and immediately see answers. Every application is different and everyone sees a process differently, and that's why canned applications fall short."

In the course, student teams work as consultants with actual companies and organizations to build business simulation models using the Planners Lab modeling software. The Planners Lab is both intuitive and easy to learn, which allows the students to focus on understanding the clients' needs and delivering useful results.

Teams of three to five students consult and produce models for five clients over the course of the semester, spending three weeks on each project. Four clients are situated in Omaha; one is in El Paso, Texas, requiring the teams to communicate by phone and electronically.

Each student team works with the same client at the same time. For example, all four teams worked with Avantas from January 18 until they presented their models February 8. The teams are reorganized for each client.

Student proctors

Three students familiar with the software and simulation modeling, Alex Bucevicius, Josh Saltz and Ronnie Tyson, serve as proctors and assist teams with modeling needs.

In addition, several faculty members and area business people act as "consulting mentors" for the teams. The consulting mentors attend class while their particular client's model is being developed and during the teams' presentations. The teams are allowed to schedule additional time with their mentors as needed. 

Each team keeps a weekly journal that is to be a summary document of lessons learned, obstacles, breakthroughs, frustrations and other experiences that document the overall experience for that client. The journal is due at the time of client presentations.

"This is a very rigorous, intensive course," Wagner says. "It isn't easy to develop a business model and present it to a different client every three weeks."

Dorest Harvey, executive-in-residence at IS&T and a consulting mentor for the Avantas teams, says the course brings together the academic and business worlds.

"There's a dual synergy here," Harvey says. "It provides insight into real-world business problems that can be eye-opening from the students' point of view. And the business community gains by being the beneficiary of the students' fresh perspectives and ideas."

Class participants

The students in the class and their major: Jan Beier, MBA; Matthew Bentz, MBA; Wesley Brown, business management; Tim Corcoran, management information systems (MIS); Kevin Engelkamp, MIS; Derek Jensen, MIS; Rick Knudson, computer science; Jonathan McDermott, MIS; Ernie Miranda, marketing; Kamron Ochsner, MBA; Matthew Rogers, business management; Shoira Tahirova, business finance; Robert Tisdel, business management; and James Young, business management.

Tahirova says she didn't know what to expect when she signed up for the course.

"It's a very practical class and very challenging, too," she says. "Your work is judged by professionals, and it's exciting and useful to get feedback from those professionals."

Bentz says he appreciates the opportunity to work with real-life clients. "It's not all laid out for you like it might be in a textbook," he says. "The needs and questions keep changing, and that requires a lot of quick thinking and teamwork."

Beier agrees. "Working with a team on a real-life problem is a completely different experience than you'd get in a traditional class. The real-life problems are more complex than any basic assignment."

Networking bonus

Engelkamp, a senior, says working with a variety of local clients also provided the opportunity to network with potential employees prior to graduation.

"Not only is it an awesome, hands-on experience, the networking opportunities are incredible," he says. "For someone who wants to stay in Omaha and work perhaps with one of these companies, meeting these people and getting a chance to know each other is really valuable."

Wagner says the students' final grades will be largely determined by the clients' feedback regarding their satisfaction with each team's results. The consulting mentors also judge final presentations, and the students rate their peers within a team.

He says he hopes to teach the course on an annual basis.

"I'd welcome any potential clients who are interested in providing students with a problem to solve through business simulation modeling to contact me about becoming part of the next course," he says. "It really amounts to a win-win situation for the students and the clients."

Krapfl says Avantas would not hesitate to take part in the class in the future.

"It was a good way to get a jump-start on building a business model to analyze the feasibility of a new product," she says. "It was a great experience all around."

Wagner can be reached by telephone at 402-554-2562 or email him at  grwagner@mail.unomaha.edu.

 

Utilizing small robots for research are, from left, Fan, Cheng, Dasgupta and Jumadinova. Photo by Tim Fitzgerald/University Relations.

SWARMING like ANTS

From tiny creatures on the ground to tiny robots in space, the research being conducted by Computer Science Associate Professor Prithviraj (Raj) Dasgupta and his students at the College of Information Science & Technology (IS&T) is unique in the United States, and perhaps the world.

Dasgupta and his students are combining techniques from biologically-inspired swarmed systems with techniques from computational economics to control a group of miniature robots and enable them to perform complex tasks as a team.

The concept of game theory, a branch of economics that deals with strategic decision making, and swarm intelligence, a branch of biology that studies the collective behavior of insect colonies, are the foundation for Dasgupta's research.

Dasgupta is director of the Collaborative Multi-Agent Networked Technologies and Intelligence Computation Lab (C-MANTIC) at IS&T. He and his students are applying their research to mini-robots, mobile sensor platforms and other small, resource-constrained components to enable them to perform complex tasks that could not be performed if each robot had worked individually.

For example, a grant Dasgupta has been awarded by the National Aeronautics and Space Administration (NASA) would put the knowledge to use by designing teams of unmanned spacecraft to explore asteroid belts.

Another grant, awarded jointly with 21st Century Systems by the Department of Defense (DoD-Navair STTR), explores the use of swarming technologies to control unmanned aerial vehicles and perform reconnaissance and targeting missions in battlefield conditions.

"Within our setting here at the college, obviously we cannot work with unmanned aircraft," Dasgupta says, smiling. "So we test our techniques by using ground robots."

 One of the robots they utilize is called the e-puck. About the size of a tennis ball, they are inexpensive to build but the amount of on-board memory and sophistication of their sensors are limited.

"The robots do not have a lot of storage space on them and this limits the amount of computation each robot can perform," he says. "To complete a task, we must use several robots that coordinate their actions with each other so they perform the task collaboratively."

The robots begin by exploring their environment for tasks. "We have developed novel techniques for different facets of the multi-robot coordination problem, including distributed multi-robot task allocation, dynamic path planning and distributed terrain coverage by the robot teams," he says.

An algorithm is an established, recursive computational procedure for solving a problem in a finite number of steps.

Algorithms are the basis for most computer programming. Dasgupta and his current students - Ke Cheng, Janyl Jumadinova and Li Fan - are testing their algorithms using a robot simulator called Webots as well as on actual robots such as the e-puck and Kephera.

"We simulate the desired behavior of the robots using the software on the robot simulator, fine-tune the performance under different simulated scenarios and then transfer our software to the hardware on the robots," he says. "With a swarm, there are no real-time guarantees on how the system will behave, and that behavior emerges over time.

"Because of the difficulty guaranteeing the system's behavior, we are applying more structured techniques, such as those from game theory and market economics. Those tell us how humans behave in strategic situations, and that is particularly useful to design sophisticated robot behavior."

Dasgupta earned his master's and Ph.D. degrees in computer engineering from the University of California, Santa Barbara. He received his bachelor's degree in computer science and engineering from Jadavpur University in India.

Interest in the field of swarm intelligence has increased the past few years, in academia as well as in industry. Some commercially available gaming systems already use swarming, he says.

"Our technology is novel," he says. "To the best of my knowledge, other researchers haven't considered incorporating the aspects of game theory into swarmed intelligence for multi-robot control.

"The problem is not an easy one to solve and we are looking forward to the new challenges we will encounter."

Jared Brower, a senior studying computer science and MIS, and Sheila Korth, a senior majoring in MIS and economics, were among 12 UNO interns with the Global Innovation and Strategy Center. Photo by Tim Fitzgerald/University Relation

GISC internship sharpens skills

College of Information Science & Technology students Jared Brower and Sheila Korth are among the interns who took part in research and analysis projects identifying potential national security threats on behalf of the Global Innovation and Strategy Center (GISC).

Part of the U.S. Strategic Command, the GISC utilized 12 students representing a cross section of UNO colleges for the four-month internship program. The students investigated two topics: tunnel detection and space debris. The student teams detailed their findings in several presentations attended by government officials and some of the military's top officers.

Korth, a senior majoring in management information systems (MIS) and economics, worked on the tunnel detection project team. Her concentration was on policy. She calls the internship "an amazing experience.

"It definitely opened my eyes to the inner workings of government, academia and industry," says Korth, who is a recipient of a prestigious Truman Scholarship. "I was able, both inside the GISC and outside, to speak with a lot of experts and gain their insight. It really helped shape my knowledge regarding funding and policy."

Brower is a senior studying computer science and MIS, with a concentration in information assurance and a minor in mathematics. He worked on the space debris project team.

"For my part in the group, I got a good, in-depth look at the aerospace industry and how contractors and the government work together," he says.

Brower says he sharpened his report writing and information delivery skills. "Once you present your findings to a three-star general, other school presentations aren't so scary anymore."

Korth and Brower also detailed their internships for professors and staff at The Peter Kiewit Institute Feb. 29 as part of the IS&T Roundtable Series..

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