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ORCIDUmut Topkara
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- affiliation: Purdue University, West Lafayette, USA
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2020 – today
- 2020
[c16]Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar:
Human Distinguishable Visual Key Fingerprints. USENIX Security Symposium 2020: 2237-2254
2010 – 2019
- 2017
- [j7]Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar:
Camera Based Two Factor Authentication Through Mobile and Wearable Devices. Proc. ACM Interact. Mob. Wearable Ubiquitous Technol. 1(3): 35:1-35:37 (2017) - [j6]Mahmudur Rahman, Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar:
Video Liveness for Citizen Journalism: Attacks and Defenses. IEEE Trans. Mob. Comput. 16(11): 3250-3263 (2017) - [c15]Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar:
A Secure Mobile Authentication Alternative to Biometrics. ACSAC 2017: 28-41 - [i5]Mahmudur Rahman, Bogdan Carbunar, Umut Topkara:
Secure Management of Low Power Fitness Trackers. CoRR abs/1703.08455 (2017) - [i4]Mahmudur Rahman, Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar:
Video Liveness for Citizen Journalism: Attacks and Defenses. CoRR abs/1704.02032 (2017) - [i3]Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar:
Camera Based Two Factor Authentication Through Mobile and Wearable Devices. CoRR abs/1710.07727 (2017) - [i2]Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar:
A Secure Mobile Authentication Alternative to Biometrics. CoRR abs/1712.02483 (2017) - 2016
- [j5]Mahmudur Rahman, Bogdan Carbunar, Umut Topkara:
Secure Management of Low Power Fitness Trackers. IEEE Trans. Mob. Comput. 15(2): 447-459 (2016) - [j4]Mahmudur Rahman, Umut Topkara, Bogdan Carbunar:
Movee: Video Liveness Verification for Mobile Devices Using Built-In Motion Sensors. IEEE Trans. Mob. Comput. 15(5): 1197-1210 (2016) - 2015
- [c14]Mahmudur Rahman, Mozhgan Azimpourkivi, Umut Topkara, Bogdan Carbunar:
Liveness verifications for citizen journalism videos. WISEC 2015: 17:1-17:10 - [i1]Mercan Topkara, Thomas Erickson, Umut Topkara, Chandrasekhar Narayanaswami:
Enabling Multiple QR Codes in Close Proximity. CoRR abs/1510.08210 (2015) - 2014
- [c13]Mahmudur Rahman, Bogdan Carbunar, Umut Topkara:
SensCrypt: A Secure Protocol for Managing Low Power Fitness Trackers. ICNP 2014: 191-196 - 2013
- [j3]Paul C. Castro, Joe W. Ligman, Marco Pistoia, John Ponzo, Gegi Thomas, Umut Topkara:
Runtime adaptive multi-factor authentication for mobile devices. IBM J. Res. Dev. 57(6) (2013) - [c12]Mahmudur Rahman, Umut Topkara, Bogdan Carbunar:
Seeing is not believing: visual verifications through liveness analysis using mobile devices. ACSAC 2013: 239-248 - 2011
- [c11]Liyun Li, Umut Topkara, Nasir D. Memon
:
ACE-Cost: Acquisition Cost Efficient Classifier by Hybrid Decision Tree with Local SVM Leaves. MLDM 2011: 60-74
2000 – 2009
- 2009
- [c10]Liyun Li, Umut Topkara, Baris Coskun, Nasir D. Memon:
CoCoST: A Computational Cost Efficient Classifier. ICDM 2009: 268-277 - 2007
- [b1]Umut Topkara:
Information security applications of natural language processing techniques. Purdue University, USA, 2007 - [c9]Umut Topkara, Mikhail J. Atallah, Mercan Topkara:
Passwords decay, words endure: secure and re-usable multiple password mnemonics. SAC 2007: 292-299 - [c8]Mercan Topkara, Umut Topkara, Mikhail J. Atallah:
Information hiding through errors: a confusing approach. Security, Steganography, and Watermarking of Multimedia Contents 2007: 65050V - [c7]Umut Topkara, Mercan Topkara, Mikhail J. Atallah:
Passwords for Everyone: Secure Mnemonic-based Accessible Authentication. USENIX ATC 2007: 369-374 - 2006
- [j2]Yohan Kim, Mehmet Koyutürk, Umut Topkara, Ananth Grama, Shankar Subramaniam:
Inferring functional information from domain co-evolution. Bioinform. 22(1): 40-49 (2006) - [j1]Mehmet Koyutürk, Yohan Kim, Umut Topkara, Shankar Subramaniam, Wojciech Szpankowski, Ananth Grama:
Pairwise Alignment of Protein Interaction Networks. J. Comput. Biol. 13(2): 182-199 (2006) - [c6]Umut Topkara, Mercan Topkara, Mikhail J. Atallah:
The hiding virtues of ambiguity: quantifiably resilient watermarking of natural language text through synonym substitutions. MM&Sec 2006: 164-174 - [c5]Cüneyt M. Taskiran, Umut Topkara, Mercan Topkara, Edward J. Delp:
Attacks on lexical natural language steganography systems. Security, Steganography, and Watermarking of Multimedia Contents 2006: 607209 - 2005
- [c4]Sundararaman Jeyaraman, Umut Topkara:
Have the cake and eat it too - Infusing usability into text-password based authentication systems. ACSAC 2005: 473-482 - 2004
- [c3]Mercan Topkara, Umut Topkara, Mikhail J. Atallah, Cüneyt M. Taskiran, Eugene T. Lin, Edward J. Delp:
A hierarchical protocol for increasing the stealthiness of steganographic methods. MM&Sec 2004: 16-24 - 2002
- [c2]Zhirong Wang, Umut Topkara, Tanja Schultz, Alex Waibel:
Towards Universal Speech Recognition. ICMI 2002: 247-252 - [c1]Mikhail J. Atallah, Victor Raskin, Christian Hempelmann, Mercan Karahan, Radu Sion, Umut Topkara, Katrina E. Triezenberg:
Natural Language Watermarking and Tamperproofing. Information Hiding 2002: 196-212
Coauthor Index
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