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:11/7/2014)... , November 6, 2014 Leading ... for better mobile security revolutionizing online transactions.  Companies in focus ... Holdings Ltd. (NYSE: BABA ), Google Inc. (NASDAQ: ... ), eBay Inc. (NASDAQ: EBAY ) and MasterCard ... NXTD and NXTDW), a biometric authentication company focused on ...
(Date:11/6/2014)... metastasis, yet progress in preventing and treating migratory ... particularly challenging to design drugs that work against ... biology at Harvard Medical School. , "Unfortunately, ... metastasized." , Gujral and colleagues have now identified ... understand how metastasis begins. Their findings may also ...
(Date:11/6/2014)... Medicine, Inc, a Baltimore-based bioinformatics company focused on ... a research collaboration with the international leader in ... CSBR). , "There are many companies utilizing advances ... TumorGraft technology is unique in a way that ... vast amounts of valuable data. Our bioinformatic analysis ...
Breaking Biology News(10 mins):Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 2Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 3Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 4Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 5Universal Authentication Methods Provide More Secure Operations for Biometrics Devices - Company Joins FIDO Alliance for Consumer Protection 6Migration negation 2Migration negation 3Insilico Medicine, Inc announces research collaboration with Champions Oncology, Inc 2
... European Molecular Biology Laboratory (EMBL) have generated a digital ... a vertebrate. With a newly developed microscope scientists could ... first 24 hours in the life of a zebrafish. ... of the embryo. The study, published in the current ...
... The Indonesian government and World Wildlife Fund (WWF) today ... and critical ecosystems of Sumatra, an Indonesian island that ... endangered forests. The historic agreement represents the first-ever ... commitment has been endorsed by governors of all provinces ...
... and Infectious Diseases (NIAID), part of the National Institutes ... be up to $68.7 million to establish programs in ... institutions. Scientists at each facility will apply novel techniques ... (SARS), tuberculosis and influenza. Systems biology is the ...
Cached Biology News:Digital zebrafish embryo provides the first complete developmental blueprint of a vertebrate 2Saving Sumatra: Indonesia reaches historic agreement 2New Systems Biology Awards enable detailed study of microbes 2
(Date:11/26/2014)... SoundConnect , an award winning ... announce that Darren Suders has joined the team as ... drive the partner program through innovative offerings, ... , Darren brings more than 10-years of channel telecommunication ... channel operations, from policy development, to partner education and ...
(Date:11/26/2014)... -- Theravalues Corporation annuncia con orgoglio il lancio di ... Hi Europe 2014 (dal 2 al 4 dicembre, ... curcumina con la maggiore biodisponibilità di sempre, con una ... dalle norme europee. La curcumina è un ... Curcuma longa ) che è stata associata con attività ...
(Date:11/24/2014)... NAMUR , Belgium , Nov. 24, ... life sciences company focused on developing diagnostic tests for cancer ... lung cancer study will be presented at the Science for ... Louvain-la-Neuve, Belgium . The data come from ... collected at the Pneumology department of the Centre Hospitalier Universitaire ...
(Date:11/24/2014)... Texas (PRWEB) November 24, 2014 ... Adipic Dihydrazide Industry is a professional and in-depth ... provides Adipic Dihydrazide information, like its definition, classification, ... industry overview. This report covers the international market ... global (such as the US, Europe, Asia, China, ...
Breaking Biology Technology:SoundConnect Appoints Director of Channel Development & Sales 2La curcumina con la maggiore biodisponibilità di sempre farà il suo debutto in Europa 2La curcumina con la maggiore biodisponibilità di sempre farà il suo debutto in Europa 3VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 2VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 3VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 4VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 5VolitionRx to Present Positive Data from Pilot Lung Cancer Study at BioWin Day 2014 6Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 2Adipic Dihydrazide Industry 2019 Research Forecasts on Worldwide, China Regions Now Available at ReportsnReports.com 3
Determin interaction of your protein with Echelons lipids...
Identify and characterize Phosphoinositide (PI(4,5)P2) binding...
... Moto Alpha unit with motorized heated lid and ... is useful for microarrays and chips. The four ... The sealing force of the motorized lid is ... give repeatable results. This interchangeable Moto Alpha unit ...
... Anti-Krueppel-like factor 15 (KLF15) KLF15 ... is found abundantly expressed in the liver, ... #: NP_054798 Specificity: Polyclonal antibody produced ... corresponding to a region of human KLF15 ...
Biology Products: