Navigation Links
Caltech researchers train computers to analyze fruit-fly behavior
Date:4/8/2009

m with other engineering advancements, the two began training computers to see and recognize aggression and courtship behaviors. The result? An automated system that can monitor a wide variety of behaviors in videos of interacting fruit-fly pairs in a matter of minutes.

"This is a coming-of-age moment in this field," says Perona. "By choosing among existing machine vision techniques, we were able to put together a system that is much more capable than anything that had been demonstrated before."

The team fed the computer the characteristic details of what each individual behavior looks like on video. A lunge, for instance, begins with a shortening of the fly's body as the fly rears up; the fly then makes a quick darting movement, closing to within a few centimeters of another fly.

Once the computer had mastered these details, the researchers then compared the computer's analysis of a piece of video to the analysis produced by a human. "We looked at how many instances the computer caught, and how many it missed," says Anderson. "By looking at the errors the computer made, we were able to further refine our descriptions to create an even more accurate system."

In the end, Anderson notes, this back-and-forth resulted in a program that is "actually better than humans at detecting some of the instances of the various behaviors."

"Where previous experiments had been carried out on 100 to 1,000 frames of video, we carried out our experiments on 100,000 frames of video," Perona adds. "And while previous experiments showed numerous errors in tracking, we get very few. We are able to give accurate performance figures."

The next step, says Anderson, is to try to extend this automatic behavior-detection system to mice--a more difficult task when you're dealing with a fuzzy-edged creature like a mammal, but one that is important if we hope to some day link the genes behind fruit-fly behaviors with the genes that may cause s
'/>"/>

Contact: Lori Oliwenstein
lorio@caltech.edu
626-395-3631
California Institute of Technology
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Caltech and UCSD researchers shed light on how proteins find their shapes
2. Caltech researchers help unlock the secrets of gene regulatory networks
3. Caltech researchers get first look at how groups of cells coordinate their movements
4. Caltech scientists show function of helical band in heart
5. Caltech scientists develop barcode chip for cheap, fast blood tests
6. Celebrated UH researcher invited to Caltech as distinguished scholar
7. Caltech researchers get first 3-D glimpse of bacterial cell-wall architecture
8. Caltech-led researchers find negative cues from appearance alone matter for real elections
9. Caltech geobiologists discover unique magnetic death star fossil
10. Caltech engineers build firast-ever multi-input plug-and-play synthetic RNA device
11. Caltech scientists engineer supersensitive receptor, gain better understanding of dopamine system
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... EyeLock, Inc. , a market leader of iris-based identity authentication ... to the new role of Senior Vice President of Mobile ... mobile platforms and wearable solutions for EyeLock,s technologies. Gerber brings ... semiconductor industry to his role at EyeLock, with expertise in ...
(Date:12/24/2014)...  Since its launch in December 2014, the 1U™ ... of trying to remember their usernames and passwords through replacing ... smartphones. To assist people who have struggled to remember usernames ... 1U and focuses on redefining identity, announced today that it ...
(Date:12/22/2014)... 22, 2014 Research and Markets ( ... "The Global Watermarking and Fingerprinting Markets" ... http://photos.prnewswire.com/prnh/20130307/600769 This insight provides ... and fingerprinting markets. Watermarking aims to control and ...
Breaking Biology News(10 mins):EyeLock Names Steve Gerber as Senior Vice President of Mobile and Wearables 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 21U Offers Best Solution to the Username / Password Dilemma: For FREE! 3The Global Watermarking and Fingerprinting Markets 2
... of prostate cancer in mice and has beneficial effects on ... metabolism, UC Davis and the U.S. Department of Agriculture Western ... study, by Paul Davis, nutritionist in the Department of Nutrition ... the findings today at the annual national meeting of the ...
... Department of Energy (DOE) Joint Genome Institute (JGI) has ... 13th Annual Applied Ergonomics Conference held March 22-25, 2010 ... Improvement Initiatives category, the DOE JGI,s entry is "Empowering ... the DOE JGI program that help promote awareness of ...
... ESA,s TIGER II initiative has selected 20 project proposals ... learn more about the water cycle and to improve ... results and achievements of its precursor TIGER I, which ... to bridge Africa,s water information gap using Earth-observation (EO) ...
Cached Biology News:Walnuts slow prostate tumors in mice 2DOE JGI vying for 2010 Ergo Cup 2ESA's TIGER II to support 20 water projects in Africa 2ESA's TIGER II to support 20 water projects in Africa 3
(Date:1/22/2015)... 22. 2015  Varian Medical Systems (NYSE: VAR ), ... for its commitment to sustainability with inclusion on a prestigious ... highest ranked healthcare equipment company among the Corporate Knights Global ... Economic Forum at Davos, Switzerland . ...
(Date:12/24/2014)... Md. , Dec. 24, 2014  United Therapeutics Corporation ... Inc. (NYSE: MDT ) has submitted a ... Administration (FDA) for the use of Medtronic,s SynchroMed ® ... developed catheter) for use with United Therapeutics, Remodulin ® ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 “Preparative ... Gas, HPLC, Flash), Consumables (Columns, Solvents, Buffers, Valves, ... Food & Agriculture) - Forecasts to 2019” provides ... challenges, opportunities, current market trends, and strategies impacting ...
(Date:12/24/2014)... (PRWEB) December 23, 2014 On Friday, ... 83, the Omnibus and Continuing Resolution Appropriations Act of ... condition eligible to receive funding through the Congressionally Directed ... Defense (DoD). The Hydrocephalus Association (HA), working in conjunction ...
Breaking Biology Technology:Varian Honored Among World's 100 Most Sustainable Corporations 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 2United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 3United Therapeutics Announces Submission Of Pre-Market Approval Application For Implantable Drug Infusion System To Deliver Remodulin 4Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 2Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 3Preparative and Process Chromatography Market is expected to reach $9 billion by 2019 - New Report by Marketsandmarkets 4Rare Brain Condition Now Eligible for Department of Defense Research Dollars 2
... Minimal Effect on Heart Rhythm ... Changes in Schizophrenia Patients, VIENNA, Austria, Oct. 17 ... Organon -- is effective,in treating acute manic episodes associated with bipolar ... this week at,the 20th European College of Neuropsychopharmacology (ECNP) Congress. ...
... PRINCETON, N.J., Oct. 16 Bristol-Myers Squibb,Company (NYSE: ... Food and Drug,Administration (FDA) has granted approval of ... with metastatic or locally,advanced breast cancer in patients ... and capecitabine. The FDA has also granted,approval of ...
... Management Team, ROCKVILLE, Md., Oct. 16 ... company developing,therapeutics for the treatment of cancer and ... has been appointed its Senior Vice,President, Research and ... officer of EntreMed by the Board of Directors, ...
Cached Biology Technology:Organon's Asenapine Further Demonstrates Efficacy in Reducing Mania Symptoms for the Treatment of Bipolar I Disorder 2Organon's Asenapine Further Demonstrates Efficacy in Reducing Mania Symptoms for the Treatment of Bipolar I Disorder 3Organon's Asenapine Further Demonstrates Efficacy in Reducing Mania Symptoms for the Treatment of Bipolar I Disorder 4Organon's Asenapine Further Demonstrates Efficacy in Reducing Mania Symptoms for the Treatment of Bipolar I Disorder 5Organon's Asenapine Further Demonstrates Efficacy in Reducing Mania Symptoms for the Treatment of Bipolar I Disorder 6FDA Approves IXEMPRA(TM) (ixabepilone), a Semi-Synthetic Analog of Epothilone B, for the Treatment of Advanced Breast Cancer 2FDA Approves IXEMPRA(TM) (ixabepilone), a Semi-Synthetic Analog of Epothilone B, for the Treatment of Advanced Breast Cancer 3FDA Approves IXEMPRA(TM) (ixabepilone), a Semi-Synthetic Analog of Epothilone B, for the Treatment of Advanced Breast Cancer 4FDA Approves IXEMPRA(TM) (ixabepilone), a Semi-Synthetic Analog of Epothilone B, for the Treatment of Advanced Breast Cancer 5FDA Approves IXEMPRA(TM) (ixabepilone), a Semi-Synthetic Analog of Epothilone B, for the Treatment of Advanced Breast Cancer 6FDA Approves IXEMPRA(TM) (ixabepilone), a Semi-Synthetic Analog of Epothilone B, for the Treatment of Advanced Breast Cancer 7EntreMed Appoints Senior Vice President of Research and Development 2EntreMed Appoints Senior Vice President of Research and Development 3EntreMed Appoints Senior Vice President of Research and Development 4
... sensitive laser confocal systems designed for rapid ... that meet your expectations, differentiating between a ... the signal on the bottom as well ... for increased sensitivity. Results with VersArray ChipReader ...
Bio-Plex Manager software, version 3.0, 5 license netshare, is a five-user software package that provides access to data from the Bio-Plex suspension array system from a server. This version does not...
... System is an automated multiplexing platform that ... detection, pathogen sequence detection and pharmacogenetics applications. ... applied to an open and flexible electronic ... reused until all tests sites have been ...
... : GeneTraffic is built to be a ... GeneTraffic provides visual and computational tools to ... to analysis. , Data and Project ... the MIAME (Minimum Information About a Microarray ...
Biology Products: