Citizen Science Grid

The Citizen Science Grid is run by Travis Desell, an Assistant Professor in the Computer Science Department at the University of North Dakota. It is hosted by UND's Computational Research Center and Information Technology Systems and Services. The Citizen Science Grid is dedicated to supporting a wide range of research and educational projects using volunteer computing and citizen science, which you can read about and visit below.


The Subset Sum problem is described as follows: given a set of positive integers S and a target sum t, is there a subset of S whose sum is t? It is one of the well-know, so-called "hard" problems in computing. It's actually a very simple problem computationally, and the computer program to solve it is not extremely complicated. What's hard about it is the running time – all known exact algorithms have running time that is proportional to an exponential function of the number of elements in the set (for worst-case instances of the problem).


Wildlife@Home is citizen science project aimed at analyzing video gathered from various cameras recording wildlife. Currently the project is looking at video of sharp-tailed grouse, Tympanuchus phasianellus, and two federally protected species, interior least terns, Sternula antillarum, and piping plovers, Charadruis melodus to examine their nesting habits and ecology.


The goal of DNA@Home is to discover what regulates the genes in DNA. Ever notice that skin cells are different from a muscle cells, which are different from a bone cells, even though all these cells have every gene in your genome? That's because not all genes are "on" all the time. Depending on the cell type and what the cell is trying to do at any given moment, only a subset of the genes are used, and the remainder are shut off. DNA@home uses statistical algorithms to unlock the key to this differential regulation, using your volunteered computers.

Climate Tweets

The Climate Tweets project is focused on personal opinions about climate change or global warming. The goal is to sort tweets and view the different views in various countries, how the discussion has changed over time, and how opinions change with political orientation. Classifying tweets allows us to discover patterns and coorelations in people's opinions about our world. It also helps us understand what people know about climate change. Please note that the tweets are unfiltered and may contain profanity or controversial views, and these are not the views of the Citizen Science Grid, any of our team, or funding agencies. Because of this the project is 18+.

User of the Day

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Profile HydroLAB > Sph3re
------------ Sph3re ------------ Hi all ! i'm a French Grafic and Video Designer living in Perpignan Good Crunch ! °O° ------------ Member ...

News RSS

[all] cooling failure - potential downtime

I've been informed that the cooling system has gone down in the university datacenter that houses the virtual machine that the Citizen Science Grid runs on. As of now, they're not going to be shutting down the virtual machine, but it's still a potential. I just wanted to get a warning message out to everyone in case the site goes down for a period of time. Our system administrators are working on it and hopefully we don't experience any downtime, but if we do they'll be doing their best to get things back up and running.

Travis Desell on Wednesday, March 22nd
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[wildlife] EXACT2 v0.19

I noticed an issue where the datafiles for v0.18 were missing a parameter, which was leading to some WUs not validating and some errors on the server side. I've updated the application to v0.19 which should fix this issue -- although may cause some of the WUs generated for v0.18 to error out. Sorry about that!

Travis Desell on Wednesday, March 22nd
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[wildllife] EXACT2 update

I've started two new searches called 'cifar_10_noreset_mar_18' and 'cifar_10_reset_mar_18' and generated some initial workunits for them. Let me know if you run into any issues with these.

Travis Desell on Saturday, March 18th
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[wildlife] EXACT update

I'll be putting in an update to the EXACT application this weekend. Due to the fact that it requires new input files and is not compatible with the current version I'm going to release it as a new app, so I can keep the validator/assimilator running for the old version (that way you won't lose any credit or work from current workunits).

I'm going to stop generating workunits for the current EXACT app and should be releasing them out to test things tonight. I've done some pretty thorough testing on my end so hopefully the transition can happen without too many hiccups.

Travis Desell on Sunday, March 19th
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[wildlife] uas image interface bugs

all, the updated algorithm for showing and completing UAS images is having a few issues. i'm looking to resolve the issues ASAP and will have an update later today.

the other 2 image projects should be working as intended.

Marshall Mattingly on Tuesday, March 7th
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