Jayant Gupchup Graduate student Johns Hopkins University Representative

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Jayant Gupchup Graduate student, Johns Hopkins University Representative Slides

Jayant Gupchup Graduate student, Johns Hopkins University Representative Slides

Environmental Monitoring Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Environmental Monitoring Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Cub Hill [Dec 2008 to Sep 2009] Jayant Gupchup, Johns Hopkins University http: //www.

Cub Hill [Dec 2008 to Sep 2009] Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Research and Roles § Manage data collected by our sensors § Provide online access

Research and Roles § Manage data collected by our sensors § Provide online access to data and graphs to scientists § http: //dracula. cs. jhu. edu/luyf/en/tools/VZTool/ § Research – I: Time synchronization and validation of measurements § Research – II: Exploit spatial and temporal correlation to § Fault detection and gap filling § Optimize data collection subsystem Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Grazor System Available Online Right now!!! Jayant Gupchup, Johns Hopkins University http: //www. cs.

Grazor System Available Online Right now!!! Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Timestamp Validation: Annual Solar Patterns <LOD, noon> = f (Latitude, Time of Year) Jayant

Timestamp Validation: Annual Solar Patterns <LOD, noon> = f (Latitude, Time of Year) Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Soil Temperature Dataset [noisy + gappy] Jayant Gupchup, Johns Hopkins University http: //www. cs.

Soil Temperature Dataset [noisy + gappy] Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Robust Reconstruction [Clustering+PCA+Regression] Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Robust Reconstruction [Clustering+PCA+Regression] Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Top 10 Locations Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Top 10 Locations Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Reconstruction Error vs Locations Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Reconstruction Error vs Locations Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Questions Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Questions Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

Life Under Your Feet [LUYF] : http: //www. lifeunderyourfeet. org/ Jayant Gupchup, Johns Hopkins

Life Under Your Feet [LUYF] : http: //www. lifeunderyourfeet. org/ Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

System Architecture [e. Science 2008] [e. Science 08] : Microsoft e. Science Workshop 2008,

System Architecture [e. Science 2008] [e. Science 08] : Microsoft e. Science Workshop 2008, Indianapolis Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

“Time Reconstruction: Sundial” [EWSN 09] Noon Length of day (LOD) Local Noon Global Noon

“Time Reconstruction: Sundial” [EWSN 09] Noon Length of day (LOD) Local Noon Global Noon Lts 1 Gts 1 Lts 2 Gts 2 … … Lts n Gts n argmax lag Xcorr (LOD lts, LOD gts, lag) “Anchor Points” [EWSN 09] : European Conference on Wireless Sensor Network 2009, Ireland Jayant Gupchup, Johns Hopkins University http: //www. cs. jhu. edu/~gupchup

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