Baris Coskun


Sr. Principal Scientist
Amazon Web Services
New York, NY


Bio

Greetings! I am a Senior Principal Scientist at Amazon Web Services in New York City. I am interested in machine learning and data science with a particular focus on large scale information security applications. Previously, I was a Research Scientist at Yahoo! Research and before that I was a researcher at AT&T Security Research Center. I received my PhD from Polytechnic Institute of NYU, MS and BS from Bogazici University, Istanbul, Turkey all in Electrical Engineering.

News


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Publications

From Grim Reality to Practical Solution: Malware Classification in Real-World Noise
J. Yu, W. Guo, J. Yan, B. Coskun, X. Xing
IEEE S&P 2023


Firenze: Model Evaluation Using Weak Signals
B. Soman, A. Torkamani, M. J. Morais, J. Bickford, B. Coskun
AI4Cyber/MLHat-KDD
[pdf][arXiv]


Elastic Machine Learning Algorithms in Amazon SageMaker
E. Liberty, Z. Karnin, B. Xiang, L. Rouesnel, B. Coskun, R. Nallapati, J. Delgado, A. Sadoughi, Y. Astashonok, P. Das, C. Balioglu, S. Charkravarty, M. Jha, P. Gautier, T. Januschowski, V. Flunkert, B. Wang, J. Gasthaus, S. Rangapuram, D. Salinas, S. Schelter, D. Arpin, A. Smola
SIGMOD 2020
[pdf]


CADENCE: Conditional Anomaly Detection for Events Using Noise-Contrastive Estimation
M. R. Amin, P. Garg, B. Coskun
AISec 2019
[pdf]


Forecasting Suspicious Account Activity at Large-Scale Online Service Providers
H. Halawa, M. Ripeanu, K. Beznosov, B. Coskun, M. Liu
Financial Crypto 2019
[pdf][arXiv]


Nationality Classification using Name Embeddings
J. Ye, S. Han, Y. Hu, B. Coskun, M. Liu, H. Qin, S. Skiena
CIKM 2017
[arXiv][project website]


Generating Look-alike Names For Security Challenges
S. Han, Y. Hu, S. Skiena, B. Coskun, M. Liu, H. Qin, J. Perez
AISec 2017
[pdf]


(Un)wisdom of Crowds: Accurately Spotting Malicious IP Clusters UsingNot-So-Accurate IP Blacklists
B. Coskun
IEEE Transactions on Information Forensics and Security 2017
[pdf]


Harvesting the Low-hanging Fruits: Defending Against Automated Large-Scale Cyber Intrusions by Focusing on the Vulnerable Population
H. Halawa, K. Beznosov, Y. Boshmaf, B. Coskun, M. Ripeanu, E. Santos-Neto
NSPW 2016
[pdf]


Discovery of Emergent Malicious Campaigns in Cellular Networks
N. Boggs, W. Wang, S. Mathur, B. Coskun, C. Pincock
ACSAC 2013
[pdf]


Detecting Hidden Enemy Lines in IP Address Space
S. Mathur, B. Coskun, S. Balakrishnan
NSPW 2013
[pdf]


Gangs of the Internet: Towards Automatic Discovery of Peer-to-Peer Communities
L. Li, S. Mathur, B. Coskun
IEEE CNS 2013
[pdf]


Mitigating SMS Spam by Online Detection of Repetitive Near-Duplicate Messages
B. Coskun, P. Giura
IEEE ICC 2012
[pdf]


VPMN: Virtual Private Mobile Network - Towards Mobility-as-a-Service
A. Baliga, X. Chen, B. Coskun, G. de los Reyes, S. Lee, S. Mathur, J. Van der Merwe
MCS 2011
[pdf]


Friends of An Enemy: Identifying Local Members of Peer-to-Peer Botnets Using Mutual Contacts
B. Coskun, S. Dietrich, N. Memon
ACSAC 2010
[pdf]


Tracking Encrypted VoIP Calls via Robust Hashing of Network Flows
B. Coskun, N. Memon
ICASSP 2010
[pdf]


CoCoST: A Computational Cost Sensitive Classifier
L. Li, U. Topkara, B. Coskun, N. Memon
ICDM 2009
[pdf]


Online Sketching of Network Flows for Real-Time Stepping-Stone Detection
B. Coskun, N. Memon
ACSAC 2009
[pdf]


Can ‘Something You Know’ Be Saved?
B. Coskun, C. Herley
ISC 2009
[pdf]


Efficient Detection of Delay-Constrained Relay Nodes
B. Coskun, N. Memon
ACSAC 2007
[pdf]


Do Strong Web Passwords Accomplish Anything?
D. Florencio, C. Herley, B. Coskun
Usenix Hot Topics in Security 2007
[pdf]


Papers on Multimedia Watermarking and Robust Hashing

Perceptual Hash Based Blind Geometric Synchronization of Images for Watermarking
B. Coskun, K. Mihcak
SPIE Conf6819 2008
[pdf]


Tamper Detection Based on Regularity of Wavelet Transform Coefficients Y. Sutcu, B. Coskun, H. T. Sencar, N. Memon ICIP 2007
[pdf]


Confusion/Diffusion Capabilities of Some Robust Hash Functions
B. Coskun, N. Memon
CISS 2006
[pdf]


Spatio-Temporal Transform Based Video Hashing
B. Coskun, B. Sankur, N. Memon
IEEE Transactions on Multimedia 2006
[pdf]


Comparative Assessment of Semifragile Watermarking Methods
O. Ekici, B. Sankur, B. Coskun, U. Naci, M. Akcay Journal of Electronic Imaging 2004
[pdf]


Robust Video Hash Extraction
B. Coskun, B. Sankur
EUSIPCO 2004
[pdf]


A Comparative Assessment of Semi-Fragile Watermarking Methods
O. Ekici, B. Coskun, U. Naci. B. Sankur ITCom 2001
[pdf]


Patents