Navigation Links
Computer can infer rules of the forest
Date:7/25/2013

A forest full of rabbits and foxes, a bubbling vat of chemical reactants, and complex biochemical circuitry within a cell are, to a computer, similar systems: Many scenarios can play out depending on a fixed set of rules and individual interactions that can't be precisely predicted chemicals combining, genes triggering cascades of chemical pathways, or rabbits multiplying or getting eaten.

Predicting possible outcomes from a set of rules that contain uncertain factors is often done using what's called stochastic prediction. What has eluded scientists for decades is doing the reverse: To find out what the rules were, simply by observing the outcomes.

Researchers led by Hod Lipson, associate professor of mechanical and aerospace engineering and of computing and information science at Cornell University, have published new insight into automated stochastic inference that could help unravel the hidden laws in fields as diverse as molecular biology to population ecology to basic chemistry.

Their study, published online July 22 in Proceedings of the National Academy of Sciences, describes a new computer algorithm that allows machines to infer stochastic reaction models without human intervention, and without any previous knowledge on the nature of the system being modeled.

With their algorithm, Lipson and colleagues have devised a way to take intermittent samples for example, the number of prey and predating species in a forest once a year, or the concentration of different species in a chemical bath once an hour and infer the likely reactions that led to that result. They're working backward from traditional stochastic modeling, which typically uses known reactions to simulate possible outcomes. Here, they're taking outcomes and coming up with reactions, which is much trickier, they say.

"This could be very useful if you wanted to learn the driving rules for not just foxes and rabbits, but any evolving system wi
'/>"/>

Contact: Syl Kacapyr
vpk6@cornell.edu
607-255-7701
Cornell University
Source:Eurekalert

Page: 1 2

Related biology news :

1. Emerging importance of computerized cognitive testing -- new therapies for dementia
2. Solving DNA puzzles is overwhelming computer systems, researchers warn
3. Daydreaming simulated by computer model
4. Computer modeling technique goes viral at Brandeis
5. Computer simulations yield clues to how cells interact with surroundings
6. Computer model may help athletes and soldiers avoid brain damage and concussions
7. Computer modeling reveals how surprisingly potent hepatitis C drug works
8. New supercomputer to aid genomics research
9. New supercomputer coming to EMSL this summer, supplied by Atipa Technologies
10. Virginia Tech computer scientists develop new way to study molecular networks
11. Iowa State computer, electrical engineers working to help biologists cope with big data
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/4/2015)... Aug. 04, 2015 ... has announced the addition of the ... and Service), Sub-Segment (Computer Forensics, Network Forensics, ... Types, Service, Vertical and Region - Global ... offering. By Component (Hardware, Software, ...
(Date:8/4/2015)... 2015  AMRI (NASDAQ: AMRI ) today reported financial and ... Highlights: , Second quarter contract revenue of ... , Adjusted contract margins of 26 % ... a $0.05 decrease in EPS from royalties in the current quarter ... "We are very pleased to present another strong financial ...
(Date:8/3/2015)... Calif. , Aug. 3, 2015 Synaptics, ... human interface solutions, today announced that members of the ... at the Pacific Crest Global Technology Leadership Forum on ... The conference will be held at the Sonnenalp Resort ... The presentation may include forward-looking information. An audio ...
Breaking Biology News(10 mins):Digital Forensics Market - The Market Represents a Compound Annual Growth Rate (CAGR) of 11.3% From 2015 to 2020 2AMRI Announces Second Quarter 2015 Results 2AMRI Announces Second Quarter 2015 Results 3AMRI Announces Second Quarter 2015 Results 4AMRI Announces Second Quarter 2015 Results 5AMRI Announces Second Quarter 2015 Results 6AMRI Announces Second Quarter 2015 Results 7AMRI Announces Second Quarter 2015 Results 8AMRI Announces Second Quarter 2015 Results 9AMRI Announces Second Quarter 2015 Results 10AMRI Announces Second Quarter 2015 Results 11AMRI Announces Second Quarter 2015 Results 12AMRI Announces Second Quarter 2015 Results 13AMRI Announces Second Quarter 2015 Results 14AMRI Announces Second Quarter 2015 Results 15AMRI Announces Second Quarter 2015 Results 16AMRI Announces Second Quarter 2015 Results 17AMRI Announces Second Quarter 2015 Results 18AMRI Announces Second Quarter 2015 Results 19AMRI Announces Second Quarter 2015 Results 20AMRI Announces Second Quarter 2015 Results 21AMRI Announces Second Quarter 2015 Results 22AMRI Announces Second Quarter 2015 Results 23AMRI Announces Second Quarter 2015 Results 24
... AMHERST, Mass. A team of kinesiology researchers led ... Amherst recently received a 2.5-year, $975,000 grant through the ... to study how the average 100-lb. equipment load carried ... missions, affects their survivability, likelihood of injury and ability ...
... , COLLEGE PARK, Md. - The first Maryland municipality ... statewide environmental program is the Town of Berlin on ... program - managed by the University of Maryland,s Environmental ... protect their assets, as well as revitalize and improve ...
... continue to provide a look at the ash and gas ... imagery from NOAA,s GOES-13 satellite to provide a week long ... the prevailing westerly winds carry the debris (ash and smoke) ... rains bring down the ash before it can go far ...
Cached Biology News:Kinesiology team gets $975,000 Defense grant to study effects of heavy loads on soldiers 2Maryland gets its first 'Certified Sustainable' community: Berlin 2NASA's new satellite movie of 1 week's ash activity from Mexico's Popocatepetl Volcano 2
(Date:8/4/2015)... ... August 05, 2015 , ... Spirax Sarco , Inc. ... line.” The handbook provides a complete range of information needed to evaluate ... standard product offering into an easy-to-navigate single edition,” says Dawn Dukes, Public Relations ...
(Date:8/4/2015)... MONTREAL, Aug. 4, 2015 /PRNewswire/ - BioAmber Inc. (NYSE: ... its financial results for the quarter ending June 30, ... completion in June 2015 , The final cost ... million or $4.0 million above the high end of ... ($125 million +/- 10%) , The company announced ...
(Date:8/4/2015)... ... August 04, 2015 , ... Graphite ... and process equipment, announces the appointment of Dennis Rawle as European Director of ... industries. Most recently, he was General Manager and Technical Sales Manager for pump ...
(Date:8/4/2015)... 2015 According to a ... "World Cardiac Biomarker - Market Opportunities, and Forecast, ... the revenue of $2,085.9 million by 2020, registering ... Cardiac Troponins (T, I) would continue to dominate ... high sensitivity and specificity.      (Logo: ...
Breaking Biology Technology:Spirax Sarco releases Product Handbook 2BioAmber Reports Second Quarter 2015 Financial Results 2BioAmber Reports Second Quarter 2015 Financial Results 3BioAmber Reports Second Quarter 2015 Financial Results 4BioAmber Reports Second Quarter 2015 Financial Results 5BioAmber Reports Second Quarter 2015 Financial Results 6BioAmber Reports Second Quarter 2015 Financial Results 7BioAmber Reports Second Quarter 2015 Financial Results 8BioAmber Reports Second Quarter 2015 Financial Results 9BioAmber Reports Second Quarter 2015 Financial Results 10BioAmber Reports Second Quarter 2015 Financial Results 11BioAmber Reports Second Quarter 2015 Financial Results 12Dennis Rawle Joins Graphite Metallizing Corporation 2Cardiac Biomarker Market is Expected to Reach $2,085.9 Million by 2020 2Cardiac Biomarker Market is Expected to Reach $2,085.9 Million by 2020 3Cardiac Biomarker Market is Expected to Reach $2,085.9 Million by 2020 4Cardiac Biomarker Market is Expected to Reach $2,085.9 Million by 2020 5
... 9, 2011 /PRNewswire-Asia-FirstCall/ -- American Oriental Bioengineering, Inc. ... "AOB"), a pharmaceutical company dedicated to improving health ... broad range of prescription and over–the-counter ("OTC") products, ... ended March 31, 2011. First ...
... Food and Drug Administration is requesting input from stakeholders ... user fee program for biosimilar and interchangeable biological product ... Biological products are produced in a living ... while small molecule drugs are typically made through chemical ...
... Dyadic International, Inc. ("Dyadic") (OTC Pink: DYAI), a ... manufacture and sale of enzyme and protein products ... today announced that Jan Wery, Ph.D., Science Director ... Netherlands, will be making a presentation entitled, ...
Cached Biology Technology:American Oriental Bioengineering Reports First Quarter 2011 Financial Results 2American Oriental Bioengineering Reports First Quarter 2011 Financial Results 3American Oriental Bioengineering Reports First Quarter 2011 Financial Results 4American Oriental Bioengineering Reports First Quarter 2011 Financial Results 5FDA Requests Input on Development of User Fee Program for Biosimilar and Interchangeable Biological Products 2
The ELISA Kit for Hepatitis B Surface Antigen (HBsAg) is an in vitro enzyme immunoassay for the detection of HBsAg in human serum or plasma....
HiTrap Streptavidin HP, 5 x 1 ml. Category: Chromatography Systems & Accessories, Systems....
IC50: 3 ng/ml · Limit of detection: 0.5 ng/ml...
PGD2-d4 contains 4 deuterium atoms at the 3, 3', 4, and 4' positions. It is intended for use as an internal standard for the quantification of PGD2 by GC- or LC-mass spectrometry....
Biology Products: