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Latent Print Examiner study at IAI

Posted: Thu Jun 29, 2006 5:54 pm
by John Vanderkolk
Invitation to Participate in Studies Documenting Expertise in Latent Print Examiners

"Adding Human Expertise to the Quantitative Analysis of Fingerprints"
Tom Busey, Principal Investigator, Indiana University, Bloomington, IN
Chen Yu, Co-PI, Indiana University
John Vanderkolk, Collaborator, Indiana State Police Laboratory

The goal of the project is to acquire data from human experts and novices, and then extract elements of the performance that characterizes expertise. This expertise will then be applied to existing quantitative methods of fingerprint analyses using machine learning algorithms in an attempt to both understand human expertise as well as improve the machine performance. The basic idea behind the project is that the human visual system is the most advanced pattern recognition we know of, and that by understanding how it works in experts when they perform fingerprint matching tasks, we can apply similar principles to the quantitative models of fingerprint matching. We have a special interest in expert latent print examiners, since they have demonstrably different perceptual and brain processes when performing matching tasks. We will be able to gather data over the internet, and we will be recruiting interested participants from the latent print community. Note that the nature of the project is such that it may have, at least indirectly, an impact on the ongoing debate of whether fingerprint evidence is admissible in court. This will come about as we detail the differences between novices and experts as we have done in previous studies (Busey & Vanderkolk, 2005). We will not, however, be addressing questions about base rates or error rates that courts have referred to in recent cases, as this is not the focus of our proposal. We believe that participation in this project by latent print examiners will strengthen the science of fingerprint identification, both in terms of our understanding of human expertise as well as its application to machine quantification of fingerprint evidence.

In the actual experiment, you will perform a task that is related to a latent print examination, but you will use a special tool to indicate how and where you are acquiring information from the prints. The task will take about 30 minutes.

If you are interested in participating in the study while at the IAI seminar in Boston, please contact John Vanderkolk while in Boston. He will keep the schedule for the participants throughout the week. John is staying at the Marriot. Preliminary research that has been conducted will be presented at the IAI seminar, 3:30-4:00 PM on Monday.

For more information, or to participate in our studies, contact Tom
Busey at:
busey@indiana.edu


For more information, contact Tom at:

Thomas Busey, PhD
Associate Professor
Department of Psychology and Program in Cognitive Science
Indiana University, Bloomington
1101 E. 10th St
Bloomington, IN, 47405
(812) 855-4261
busey@indiana.edu
www.indiana.edu/~busey

Hey no fair!

Posted: Thu Jun 29, 2006 9:09 pm
by g.
Yes, but if you can ONLY participate in ONE experiment, it should be mine!!!

Just kidding. John, I will participate in yours if you give mine a try! I swear this one will be very easy and straightforward!

On a more serious note, John, can someone participate in your experiment if they view the prelim. results on Monday? Or would knowledge of that potentially bias or influence how I perform in the experiment (i.e. knowing what you guys are looking for, I may consciously or subconsciously try to emulate it?)

I would try and avoid the lecture if you thought there was a potential problem there. If not, then great, I look forward to seeing your data!

g.

Posted: Fri Jun 30, 2006 10:20 am
by John Vanderkolk
Glenn, I will most definitely be at yours.

I will take your concerns to Dr. Busey. He can answer your questions prior to the start of the lecture on Monday. I have not yet heard back from him today. Thanks for the concern, John V

What about me!!

Posted: Fri Jun 30, 2006 11:22 am
by charlton97
Hey guys, don't forget about Dave C and Itiel Dror :D

If only I was able to make Boston then maybe I could make it a hat trick of experiments :lol:

Good luck to all who are conducting ground breaking research in Boston. It is good to know that science is alive and well!!

cheers.

Posted: Fri Jun 30, 2006 11:50 am
by John Vanderkolk
Dave C and all others: A few months ago I was excited to visit with Dr. Dror, Dr. Busey, and Dr. Chen Yu all together in Vermont at the New England Division IAI seminar. I really enjoyed the discussions taking place in the hall ways and in the seminar. At breakfast, which almost turned into lunch, on that last day, Dr. Dror challenged ALice Maceo and me with a discussion of error rates. Simon Cole was also in Vermont, so as you know, he also challenged us on error rates. ALice and I hope to carry over our discussions with Dr. Dror on error rates at IAI on our Wednesday presentation. I had planned on Dr. Dror being in the audience. I had hopes to visit with you and Dr. Dror again in Boston, but I learned things did not work out this year. I look forward to all the research going on, whether ours or someone else's, that is what science is all about. I have met other researchers at Indiana University and look forward to the future. If someone is talking research and the collaboration among scientists, I hope to be in the audience. John V