If what you are working on is not important, and it is not likely to lead to important things, why are you working on it?
― Richard Hamming
Information Leakage
Malware Attacks
Data Breach
Fake Avatars
Phishing Attacks
Zoombombing
Credit: Such, Jose M., and Natalia Criado. "Multiparty privacy in social media." Communications of the ACM 61.8 (2018): 74-81.
89,305 Zoom related tweets
90,395 Zoom related Instagram posts
16,133 images
Dima Kagan, Galit Fuhrmann Alpert, and Michael Fire. “Zooming into video conferencing privacy and security threats”. In: IEEE Transactions on Computational Social Systems (2022)
Dima Kagan, Galit Fuhrmann Alpert, and Michael Fire. “Zooming into video conferencing privacy and security threats”. In: IEEE Transactions on Computational Social Systems (2022)
Dima Kagan, Galit Fuhrmann Alpert, and Michael Fire. “Zooming into video conferencing privacy and security threats”. In: IEEE Transactions on Computational Social Systems (2022)
Dima Kagan, Galit Fuhrmann Alpert, and Michael Fire. “Zooming into video conferencing privacy and security threats”. In: IEEE Transactions on Computational Social Systems (2022)
Face
Detection
Face
Tracking
Feature
Extraction
Change
Detection
Group
Change
Detection
Shmuel Horowitz, Dima Kagan, Galit Fuhrmann Alpert, Michael Fire Interruptions detection in video conferences 2023
Face
Detection
Face
Tracking
Feature
Extraction
Change
Detection
Group
Change
Detection
Shmuel Horowitz, Dima Kagan, Galit Fuhrmann Alpert, Michael Fire Interruptions detection in video conferences 2023
Face
Detection
Face
Tracking
Feature
Extraction
Change
Detection
Group
Change
Detection
Shmuel Horowitz, Dima Kagan, Galit Fuhrmann Alpert, Michael Fire Interruptions detection in video conferences 2023
Face
Detection
Face
Tracking
Feature
Extraction
Change
Detection
Group
Change
Detection
😃
🙂
🙂
🙂
Shmuel Horowitz, Dima Kagan, Galit Fuhrmann Alpert, Michael Fire Interruptions detection in video conferences 2023
Face
Detection
Face
Tracking
Feature
Extraction
Change
Detection
Group
Change
Detection
🙂
🙂
🙂
🙁
🙁
🙁
🙂
Shmuel Horowitz, Dima Kagan, Galit Fuhrmann Alpert, Michael Fire Interruptions detection in video conferences 2023
Face
Detection
Face
Tracking
Feature
Extraction
Change
Detection
Group
Change
Detection
Shmuel Horowitz, Dima Kagan, Galit Fuhrmann Alpert, Michael Fire Interruptions detection in video conferences 2023
Face
Detection
Face
Tracking
Feature
Extraction
Change
Detection
Group
Change
Detection
Feature Extaction | Change Detection | Recall | Precision | TNR | FPR |
---|---|---|---|---|---|
Embedding 128-dim | Arima Statistical Profiling |
50.1% 42.9% |
83.2% 75.0% |
98.1% 97.8% |
0.9% 1.4% |
Expressions 7-dim | Arima Statistical Profiling |
71.6% 72.5% |
90.5% 92.3% |
99.2% 99.1% |
0.5% 0.8% |
Deep-face expressions | Majority | 67.1% | 84.8% | 97.7% | 2.6% |
Method | Results |
---|
Automatic Large Scale Detection of Red Palm Weevil Infestation using Street View Images
Dima Kagan, Galit Fuhrmann Alpert, Michael Fire
ISPRS Journal of Photogrammetry and Remote Sensing
Palm Weevil is a type of beetle that infests palm trees, lays eggs and feeds on the palm's tissue, creating tunnels inside the tree trunk that weaken its structure, causing extensive damage resulting in tree decline and eventual breakage. The beatles can travel up to 50 km a day, rapidly spreading geographically and raising tremendous risks to spatially widespread locations.
Photo taken by Omer Tsur - AirWorks aerial photography
●Applicable at large scale.
●Relatively affordable.
●Can be used on any point in the world.
●Can be used anywhere especially in urban areas.
Provide 360 degree images.
Contain historical data.
World wide availability.
Many vendors:
Microsoft
Yandex
Apple
Kartaview
etc.
0.007 USD per each (7.00 USD per 1000).
Each image contains up to 120 degrees out of the panorama.
Max image size is 640x640.
We estimate that fully mapping of San Diego area using only street view images should cost around 51,000$.
N
546 aerial images.
756 aerial detected palm trees.
4,544 street level images.
72% match between aerial images and street level detected palm trees.
Normal Heights Village, San Diego
Has a Palm Weevil problem.
Has ground truth data of infested palm trees (reports).
Has historical data in Google Street View.
22,438 aerial images
54,781 street view images
36,001 palm trees
109 were classified as infested
24 were infested at an advanced stage
Jun 2014
Nov 2017
April 2018
April 2019
Jun 2014
Nov 2017
April 2018
April 2019
Jun 2014
Nov 2017
April 2018
April 2019
Jun 2014
Nov 2017
April 2018
April 2019
Kagan, Dima, Yuval Elovichi, and Michael Fire. "Generic anomalous vertices detection utilizing a link prediction algorithm." Social Network Analysis and Mining 8 (2018): 1-13
Shay Lapid, Dima Kagan, and Michael Fire. “Co-Membership-based Generic Anomalous Communities Detection”. In: Neural Processing Letters (2022).
Kagan, Dima, Thomas Chesney, and Michael Fire. "Using data science to understand the film industry’s gender gap." Palgrave Communications 6.1 (2020): 1-16.
Am I to understand you're still hanging
around with Dr. Emmett Brown, McFly?
Marty McFly
Lorraine McFly
George McFly
Subtitles
Cast Data
Cast Data
Dima Kagan, Jacob Moran-Gilad, Michael Fire
GigaScience