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

th interacting agents," Lipson said. "There is a whole lot of science that is based on this kind of modeling."

The researchers, including first author Ishanu Chattopadhyay, a Cornell postdoctoral associate, teamed with Anna Kuchina and Gurol Suel, molecular biologists at University of California, San Diego, to test their algorithms using real data. In one experiment, they applied the algorithm to a set of gene expression measurements of a model bacterium B. subtilis.

They gleaned similar insights by studying the fluctuating numbers of micro-organisms in a closed ecosystem; the algorithm came up with reactions that correctly identified the predators, the prey and the dynamical rules that defined their interactions.

Their key insight was to look at relative changes of the concentration of the interacting agents, irrespective of the time at which such changes were observed. This collective set of relative population updates has some important mathematical properties, which could be related back to the hidden reactions driving the system.

"We figured out that there's what's called an invariant geometry, a geometrical feature of the data set that you can uncover even from sparse intermittent samples, without knowing any of the underlying rules," Chattopadhyay said. "The geometry is a function of the rules, and once you find that out, there is a way to find out what the reactions are."

The bigger picture in this study is to give scientists better tools for taking massive amounts of data and coming up with simple, insightful explanations, Lipson said.

"This is a tool in a suite of emerging 'automated science' tools researchers can use if they have data from some experiment, and they want the computer to help them understand what's going on but in the end, it's the scientist who has to give meaning to these models," Lipson said.


'/>"/>

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:12/17/2014)... , Dec. 16, 2014 Research and Markets ... addition of the "Global Chemical Sensor Market ... http://photos.prnewswire.com/prnh/20130307/600769 One ... increasing demand for medical sensors in biomedical applications. ... for quick and correct diagnosis during surgical procedures. ...
(Date:12/11/2014)... , Dec. 09, 2014 Research and Markets ... ( http://www.researchandmarkets.com/research/9ql3kr/biometrics_market ) has announced ... India 2015-2019" report to their offering. ... market is the adoption of multimodal biometric systems. ... of an individual for verification and identification purposes. ...
(Date:12/10/2014)... -- Valencell, a leader in performance biometric data sensor technology, ... its licensees for highly accurate, clinically validated biometric technology. ... from fitness and health sectors, but first responders/military and ... only as useful as the biometric data it delivers. ... long-term mass consumer adoption of wearable products," said Dr. ...
Breaking Biology News(10 mins):Global Chemical Sensor Market 2015-2019: Key Vendors are Abbott Laboratories, Bayer, Hoffmann La-Roche, Johnson & Johnson, NGK Spark Plugs and Robert Bosch 2Biometrics Market in India 2015-2019: Key Vendors are 3M Cogent, NEC, Safran and Suprema 2Wearable Technology Products Demand Highly Accurate Biometric Technology 2
... have usually quite strong memories of past events like an ... not clear how the brain keeps track of the temporal ... wine before or after Mary left the party? , ... at the University of Lübeck have confirmed the widely held ...
... in the human vagina have been definitively identified in ... of the journal Immunity, published by Cell Press. The ... that will prevent HIV-1 transmission. , "The majority ... HIV infection following sexual contact," explain study authors Dr. ...
... impressive result of a study carried out by a group ... the Mario Negri Institute in Milan, Italy in cooperation with ... The study appears in the April 18th issue of the ... Science, PLoS ONE. , Stroke is the first cause of ...
Cached Biology News:Researchers discover new details about HIV-1 entry and infection 2
(Date:12/19/2014)... 19, 2014 In contrast to traditional ... with various colors, Valoya uses proprietary LED technology to ... best possible uniformity which is critical in low proximity ... spectral accuracy throughout its lifetime which is up to ... , "The investment cost was clearly higher when ...
(Date:12/19/2014)...  Decision Resources Group finds that the ... moderately through 2023 as the aging population, increasing adoption ... biomaterials all spur procedure volumes. Growth will be particularly ... and India , where ... for a larger proportion of the population. ...
(Date:12/19/2014)... YORK , Dec. 18, 2014 Relmada ... therapies for the treatment of chronic pain, announced the ... today. "This was a transformational year in ... promising future for our company," said Sergio Traversa ... year, we have executed on key financial, human resource ...
(Date:12/17/2014)... December 16, 2014 “Never say, ... Philipps- Universität Marburg’s Department of Physics, advises young ... the newly released SPIE Women in Optics ... too shy to ask questions.” , In the ... and mathematics) occupations ranging from university professor and ...
Breaking Biology Technology:Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 2Asia Pacific Dental Biomaterial Market Will Grow Strongly Through 2023 3Relmada Therapeutics Announces Results of Annual Shareholders Meeting 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 2Network, Multitask, Persevere: SPIE Women in Optics Planner Subjects Share from Experience 3
... International, Inc. (Pink Sheets: DYAI) ("Dyadic"), a leading-edge early-stage biotechnology company, is pleased ... , , , ... , , ... Whitehead as Executive Director of Strategic Alliances . Ms. Whitehead brings to ...
... Tetrahedral dice, which have four triangular sides, ... according to research performed by a collaboration of New ... the result of a series of experiments that involved ... more dice until the containers were completely filled. After ...
... ... , ... 2010 -- Advances in energy conservation, better materials for frontier technologies and new economic engines, ... basic and applied, to be enabled by an upgrade to the Advanced Photon Source (APS) ...
Cached Biology Technology:Dyadic International Strengthens Management Team 2Dyadic International Strengthens Management Team 3Dyadic International Strengthens Management Team 4Dyadic International Strengthens Management Team 5Densest dice packing and computing with molecules 2Upgrade to Advanced Photon Source Announced by DOE 2Upgrade to Advanced Photon Source Announced by DOE 3Upgrade to Advanced Photon Source Announced by DOE 4
... Dyad thermal cycler is a flexible ... chassis accommodates a variety of interchangeable ... hold different types and numbers of ... with point-and-click navigation. Peltier heat pumps, ...
MiniCycler thermal cycler with Hot Bonnet heated lid, holds 25x0.2ml tubes...
For demonstration of Helicobacter pylori...
... SR-101 Labeled Substrates (red fluorescence; Ex=590 ... serine protease activation • No lysing, ... Kits utilize cell-permeable, fluorescently labeled inhibitors ... chymotrypsin-like activity in whole living cells. ...
Biology Products: