The Aggregate refers to a collection of researchers and the technologies that they use to make the components of a computing system work better together. Since before our first Linux PC work in the PAPERS project, we have been considering all aspects of Compilers, Hardware Architectures, and Operating Systems (KAOS) together, optimizing system performance rather than performance of the individual parts. The only aspect of our computer system designs that is set in stone is our name.
Although the aggregate.org consortium has participants at various institutions, since 1999 it has been based in the Department of Electrical and Computer Engineering at the University of Kentucky, in Lexington, KY. Want to visit our lab at UK? Email Prof. Dietz and put "Lab Visit" in the subject line.
Looking for a tenure-track faculty position at an R1 university? The University of Kentucky (UK) is the state's flagship university, offering a complete range of programs from fine arts to Medical School all at a unified campus. UK's Pigman College of Engineering has strong programs in a variety of disciplines, including BS, MS, and PhD programs in CS, EE, and Computer Engineering (CPE). The CPE programs are implemented jointly by two departments, both of which have tenure-track positions available: Electrical and Computer Engineering and Computer Science. Please apply to both if that seems appropriate; our departments coordinate in areas of potential overlap.
April 4, 2024 Our lab is back to normal operation, but COVID-19 is still around. Risk is minimal with vaccination, good hygiene, and avoiding spread when you're sick. We also have a HEPA air cleaner running 24/7 in the lab.
April 3, 2026 Prof. Dietz will be presenting "Computing, Quantum" in the UK Phy770 seminar series, 2-2:50PM in room 297, Chemistry-Physics Building.
March 13, 2026 HTTP://QERKY.ORG, our website for Quantum Education and Research in KentuckY, is now back online with new materials. Founded in 2019, QERKY.ORG had been out of service for an extended period due to server problems. There is still the minor issue that it will not respond to HTTPS: requests, but only HTTP:. At least temporarily, the same content can be accessed at HTTPS://AGGREGATE.ORG/QERKY.
March 2-5, 2026 We will be presenting five papers at the Electronic Imaging 2026 conference and also will do live demos of all five works. The papers are linked here.
February 28, 2026 Engineer's day open house for the University of Kentucky College of Engineering was from 10AM-2PM. Here is the listing of exhibits from the ECE department.
November 17-20, 2025 Come see our research exhibit at IEEE/ACM SC25. We are the University of Kentucky exhibit, booth 5400.
April 9, 2025 From 10AM-4PM the Aggregate.Org/KAOS Lab, room 108 Marksbury, will be having an open house for students potentially interested in getting involved in research. Prof. Hank Dietz will be available in the lab with Dr. Paul Eberhart also around for much of that time, and there will be food. You don't need to sign-up beforehand, but there is a contact form specifically for students interested in research (the form uses http:, not https:).
March 5, 2025 At noon in the Hardymon Theater of the Marksbury Building Prof. Dietz presented "What Every Computer Scientist Should Know About Quantum Computing" as part of the Keeping Current Seminar series. Here's the video of the talk.
February 22, 2025 Engineer's day open house for the University of Kentucky College of Engineering was from 10AM-2PM. Here is the listing of exhibits from the ECE department.
February 3-6, 2025 We will be presenting four papers at the Electronic Imaging 2025 conference and also will do live demos of all four works. The papers are: IPAS-225: Construction, quality assessment, and applications of pixel value error PDF models; ISS-281: KAMF: An interchangeable-lens mirrorless camera made from a kid's camera; IPAS-236: Use of sharp image content to enhance sharpness of other image areas; and HVEI-204: Preservation of color metadata across transformations of pixel data.
November 18-20, 2024 Our research exhibit at the IEEE/ACM SC24 Supercomputing conference in Atlanta, GA marks the start of our 4th decade as an exhibitor at SC!
April 8, 2024 Prof. Dietz watched & photographed the total solar eclipse from Versailles State Park, IN, less than a 3-hour drive away. Photographing an eclipse is never as easy as it sounds, but we did get some pretty decent images. Here are a few using a Sony NEX-7 with an Opteka 500mm f/6.3 mirror lens on a Vivitar 2X teleconverter (the oldest of the rigs used): texture of the Sun early in the eclipse, totality, and Baily's beads & some odd flare. While much of the Sun was visible, the cameras were protected by shooting through homemade 3D-printed Astrosolar filters.
Older Pebbles... Older pebbles no longer clutter this page, but are listed here.
This site, and the research described, includes work created by researchers at a number of institutions, but the lead research group is KAOS in the Electrical and Computer Engineering Department of the University of Kentucky in Lexington, KY. Aggregate.Org is led by Professor and Hardymon Chair in Networking, Hank Dietz, who created KAOS out of the relatively well-ordered PAPERS Group that he founded in 1994 at Purdue University.
See this notice for information about copyrights, etc.
The current overview in the window of 108 MarksBury is this PDF.
The
only thing set in stone is our name.
