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:6/30/2015)... June 30, 2015 Genisphere announced ... CEO to help further develop Genisphere,s therapeutics capabilities and ... experience, having spent much of the last 25 years ... Baxter Bioscience, and Johnson & Johnson. Tom started his ... and Biotech Corporate Finance. He graduated from Dartmouth College ...
(Date:6/25/2015)... 2015 According to a ... & Area), Technology, Material (Optical Prism, Piezoelectric, Capacitive ... & Others) & Geography - Global Forecast to ... market is expected to reach $14,500.07 Million by ... Browse 76 market Tables and 109 Figures ...
(Date:6/24/2015)... NEW YORK , June 24, 2015 ... favorable rate. The major drivers for the market include ... increasing number of new drug launches. Over the years, ... has increased. Between 2001 and 2010, the FDA approved ... addition, according to WIPO, Europe ...
Breaking Biology News(10 mins):Genisphere Appoints New CEO, Thomas Bliss 2Genisphere Appoints New CEO, Thomas Bliss 3Fingerprint Sensors Market Worth $14,500.07 Million by 2020 2Fingerprint Sensors Market Worth $14,500.07 Million by 2020 3Fingerprint Sensors Market Worth $14,500.07 Million by 2020 4Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 2Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 3Biological Safety Testing Market by Application, Product, & Test - Global Forecast to 2019 4
... work and scientific adventure, marine explorers from more than ... Laboratory (MBL), today delivered the first global Census of ... and hides in the world,s oceans. In one of ... scientists spent over 9,000 days at sea on more ...
... survived for more than 400 million years, the horseshoe ... overharvest and habitat destruction. However, climatic changes may,also play ... how sensitive horseshoe crab populations are to natural climate ... Molecular Ecology . The horseshoe crab is ...
... Jerusalem, October 4, 2010 Researchers at the Hebrew University ... body that play a key role in controlling bone density, ... drug for prevention and treatment of osteoporosis and other bone ... researchers have just been published in the American journal ...
Cached Biology News:MBL scientists reveal findings of World Ocean Microbe Census 2MBL scientists reveal findings of World Ocean Microbe Census 3Climate change affects horseshoe crab numbers 2Hebrew University research holds promise for development of new osteoporosis drug 2
(Date:6/30/2015)... ... June 30, 2015 , ... ... to take part in the first half of “Integrative Biotechnology,” an applied biotechnology ... established in summer 2014, this course combines students from both universities and is ...
(Date:6/30/2015)... , ... June 30, 2015 , ... ... hosting a webinar to provide advanced scientific research into new classes of Nanoscale ... and energy. Touted as 'the wonder material of the 21st Century' by ...
(Date:6/30/2015)...  Juniper Pharmaceuticals, Inc. (Nasdaq: JNP ), a ... address unmet medical needs in women,s health, today ... present at the Cantor Fitzgerald Inaugural Healthcare Conference ... 4:45 PM EDTLocation: , Le Parker Meridien Hotel, ... www.juniperpharma.com, under  ,Investor, or  click here ...
(Date:6/30/2015)... ... 30, 2015 , ... uBiome and OpenBiome Partner for Microbiome ... fecal microbiota transplantation in C. difficile patients. , SAN FRANCISCO, uBiome and OpenBiome ... microbiota transplantation (FMT) as a treatment for Clostridium difficile infections (C. diff). , ...
Breaking Biology Technology:Rivier University and Beijing City University Academic and Cultural Exchanges Begin 2How Graphene–based Nanomaterials and Films Revolutionize Science Explained in July 9 Webinar Hosted by Park Systems 2How Graphene–based Nanomaterials and Films Revolutionize Science Explained in July 9 Webinar Hosted by Park Systems 3How Graphene–based Nanomaterials and Films Revolutionize Science Explained in July 9 Webinar Hosted by Park Systems 4Juniper Pharmaceuticals to Present at Cantor Fitzgerald Inaugural Healthcare Conference on July 8, 2015 2uBiome and OpenBiome Partner for Microbiome Study in FMT Patients 2uBiome and OpenBiome Partner for Microbiome Study in FMT Patients 3
... convergence on Thursday at the Consumer Electronics Show in Las ... , ,Designed as part of the companys plan to unite ... recording and Internet service in a set-top box. The system ... ,In his keynote address, SBC chairman Edward Whitacre said bringing ...
... Kendrick, a mechanical engineer for the department of physics, ... the Madison Dynamo Experiment at a remote UW-Madison physics ... underground bunker that brushes up against a Wisconsin barnyard ... a team of scientists, using a molten ball of ...
... truly protected global trademark is worth a ton in gold. ... iconic personality with a top-level protection plan and equipped with ... face it; such a name is worth a hundred times ... factories and all the stacking chimneys combined. Just ask Sony, ...
Cached Biology Technology:SBC blends TV, video, music and the Internet in a new media box 2Earth's core modeled in underground experiment 2Earth's core modeled in underground experiment 3Global branding is easy with global trademarks 2Global branding is easy with global trademarks 3Global branding is easy with global trademarks 4
... gel marker mix was designed specifically to aid ... contains a complement of seven reduced and denatured ... those who use markers to assess 2-D system ... of proteins undergoing 2-D separation and analysis. , ...
... These 2-D standards consist of seven ... inhibitor, bovine carbonic anhydrase, rabbit muscle GAPDH, ... white conalbumin) with pIs ranging from 4.5 ... 17,500 to 76,000. These 2-D standards provide ...
... Engine Tetrad 2 thermal cycler accommodates ... (sample-holder, heat-pump assemblies), which hold different ... Pentium-class computer drives an advanced graphical ... and lid temperatures. Peltier heat pumps, ...
... XL cell, wide format, is used for vertical electrophoresis ... gels and requires 1.2 L of running buffer. It ... 2.0 mm IPG conversion kit, which contains accessories for ... sets of IPG clamps, 2 sets of 20 x ...
Biology Products: