NSF WS Big Data Challenge
-
Upload
brett-powers -
Category
Documents
-
view
40 -
download
0
Transcript of NSF WS Big Data Challenge
![Page 1: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/1.jpg)
THE BIG DATA
CHALLENGE
BRETT POWERS , DAVID SHRAYBER, CHRISTINA LAM
![Page 2: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/2.jpg)
INTRODUCTION Hypoxia: Oxygen Concentration < 85%
Bradycardia: > 0.6 seconds/beat
Apnea: Breathing rate > 10 sec
![Page 3: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/3.jpg)
1st HYPOTHESISThe QRS variability can be used as a marker to detect hypoxia.
- QRS complex
- Code
- Findings
- Machine Learning
![Page 4: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/4.jpg)
QRS COMPLEX - ECG can measure apnea and
bradycardia through the R-R interval.
- QRS complex amplitude precursor
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2831912/?report=printable
![Page 5: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/5.jpg)
CODE
![Page 6: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/6.jpg)
CODE
![Page 7: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/7.jpg)
![Page 8: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/8.jpg)
● Peak and Trough detection
● Interpolation
![Page 9: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/9.jpg)
Chaotic Variability
![Page 10: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/10.jpg)
Stable
![Page 11: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/11.jpg)
Chaotic
Peak - Trough Distance
![Page 12: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/12.jpg)
Stable
Amplitude
![Page 13: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/13.jpg)
10 minutes - 15 minutes
![Page 14: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/14.jpg)
10 minutes - 15 minutes
Stable2.25 minutes
![Page 15: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/15.jpg)
2 hours 20 minutes - 2 hours 28 minutes
![Page 16: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/16.jpg)
5 hours 37 minutes - 5 hours 43 minutes
![Page 17: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/17.jpg)
15 hours 45 minutes - 15 hours 57 minutes
![Page 18: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/18.jpg)
![Page 19: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/19.jpg)
Whoa……..
![Page 20: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/20.jpg)
Random blind test on a hypoxia showed similar precursors.
![Page 21: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/21.jpg)
Blind Test 2
![Page 22: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/22.jpg)
Nailed It!
Blind Test 2
![Page 23: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/23.jpg)
Baby 1801 Test
![Page 24: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/24.jpg)
MACHINE LEARNING
![Page 25: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/25.jpg)
2nd Hypothesis Detecting the REM cycle by an ECG reading in conjunction with the abdominal movements, apnea can be predicted.
![Page 26: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/26.jpg)
http://pediatrics.aappublications.org.sci-hub.ac/content/57/1/142?variant=short&sso=1&sso_redirect_count=1&nfstatus=401&nftoken=00000000-0000-0000-0000-000000000000&nfstatusdescription=ERROR%3a+No+local+token
REM sleep inhibits mechanisms that affect the respiratory system.
REM Sleep → Difficulties in breathing for preterm babies.
Ideas
![Page 27: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/27.jpg)
RESEARCH Premature babies spend a lot of time in REM sleep.
Therefore, Apnea usually occurs during the REM cycle.
Arousal from REM sleep may trigger or precursor to apnea and hypoxia.
Since moter activities after being woken up are grouped together with laryngeal closure
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3158333/pdf/431_2011_Article_1409.pdf
![Page 28: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/28.jpg)
Taking EEG readings and correlating them with the ECG readings, we can find some markers before REM sleep.
![Page 29: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/29.jpg)
Thank You For Being Awesome!
Dr. IndicDr. PaydarfarAlan Gee (Cal Tech Guy)Spon 1502Spon 1801Spon 1301
![Page 30: NSF WS Big Data Challenge](https://reader036.fdocuments.in/reader036/viewer/2022062503/5879b5301a28ab6b2c8b679f/html5/thumbnails/30.jpg)
Questions