Assoc. Prof. Tamer Dağ Computer Engineering Department, Faculty of Engineering and Natural Sciences, , Istanbul, .

e-mail: [email protected] & [email protected]

Education

Ph.D. in Electrical and Computer Engineering, June 2000, Northeastern University, Boston, MA, USA.  Thesis Title: Proactive/reactive congestion control schemes for high speed networks  Ph.D. Advisors: Prof. Ioannis Stavrakakis & Prof. Elias Manolakos  Major Areas: Communications & Digital Signal Processing  Minor Areas: Computer Science & Mathematics  GPA: 3.93/4.00  Northeastern University is ranked No. 31 in Best Engineering Schools based on US News.

M.S. in Electrical and Computer Engineering, June 1997, Boston, MA, USA.  Thesis Title: Study of the impact of network and source time scales on feedback based flow control  M.S. Advisor: Prof. Ioannis Stavrakakis  Major Areas: Communications & Digital Signal Processing  GPA: 3.87/4.00  Northeastern University is ranked No. 31 in Best Engineering Schools based on US News.

B.S. in Electrical and Electronic Engineering, July 1994, Middle East Technical University (METU), Ankara, Turkey.  Ranked No. 3 among 2182 graduates of METU and No. 2 among graduates of Electrical and Electronic Engineering  Ranked No. 74 among approximately 900,000 students in the nationwide university entrance examination  GPA: 3.92/4.00

Work Experience

Feb. 2008 – Present Kadir Has University, Istanbul, Turkey Associate Professor at Computer Engineering Department  Teaching various undergraduate and graduate courses such as Computer Networks, Computer Simulation, Probability and Statistics for Engineers, Computer Organization and Architecture, Computer Programming, Digital Design.  Advising several M.S. and Ph.D. students

Sep. 2003 – Jan. 2008 Işık University, Istanbul, Turkey Assistant Professor at Computer Engineering Department  Taught various undergraduate and graduate courses such as Computer Programming, Computer Networks, Digital Signal Processing, Operating Systems.  Advised M.S. students

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Sep. 1999 – Jun. 2003 Lucent Technologies, Westford, MA, USA Senior Software Engineer  Research and development of scalable routing protocols (MPLS, OSPF)  Modeling and simulation of multi-area OSPF networks with OPNET  Test process development; writing performance and interoperability test plans for various routing protocols such as MPLS, MPLS-TE, OSPF, RSVP-TE, Diffserv  Modeling a switch fabric to analyze the impact of various parameters on the switch performance

Sep. 1994 – Jun. 1999 Northeastern University, Boston, MA, USA Research and Teaching Assistant at Electrical and Computer Engineering Department  Analyzed the impact of various network parameters on the effectiveness of feedback based flow control schemes.  Developed a new feedback based flow control scheme to increase the QoS in high speed networks by reducing bandwidth mismatches.  Organized and conducted Computer Networks Labs using Opnet.

Research Areas

 Sensor networks, Routing algorithms for Internet, IoT  Indoor positioning systems  Machine learning  Image steganography and Image processing

Supervised Theses

Ph.D.

 Handan Kulan (Ph. D.), “Identification of critical proteins associated with Learning Process for Down Syndrome”, Apr. 2020. o Dr. Kulan is an Assistant Professor at Computer Engineering Department, Beykoz University, Istanbul, Turkey.  Danish Shehzad (Ph.D.), “Developing novel techniques for spatial domain LSB image steganography”, Jan. 2019. o Dr. Shehzad is the first Ph.D. graduate of the Computer Engineering Department, Kadir Has University, Istanbul, Turkey. o Dr. Shehzad is an Assistant Professor at Department of Computer Science, FAST National University, Pakistan.  Korhan Cengiz (Ph.D.), “Low energy fixed clustering algorithm for wireless sensor networks”, Sep. 2016. o Dr. Cengiz is the second Ph.D. graduate of the Electrical and Electronics Engineering Department, Kadir Has University, Istanbul, Turkey. o Dr. Cengiz is an Assistant Professor at the Electrical and Electronics Engineering Department of , Edirne, Turkey.  Eylem Erdoğan (Ph.D.), “Performance analysis of low complexity maximal ratio transmission approaches in multi-relay networks”, Dec. 2014. o Dr. Erdoğan is the first graduate of the Electrical and Electronics Engineering Department as well as the Faculty of Engineering, Kadir Has University, Istanbul, Turkey. o Dr. Erdoğan is an Associate Professor at the Electrical and Electronic Engineering Department of Medeniyet University, Istanbul, Turkey. M.S.  Tamer Demir (M.S.), “Investigation the risk of autism by evaluating prenatal and postnatal exposure to traffic-related air pollution”, June 2020.  Lubana Barodi (M.S.), “The performance of the RSS-based least squares lateration algorithm for indoor localization”, May 2019.  Alp Eren Bütün (M.S.), “Automatic detection of MGD level (Meibomian Gland Dysfunction)”, May 2019. 2  Mohammed Khudhuragha (M.S.), “Indoor location estimation through redundant lateration for indoor positioning system”, July 2017.  Derya Demirkol (M.S.), “Comparison and analysis of various indoor positioning systems techniques”, May 2016.  Ebru Alp (M.S.), “Indoor positioning system development / triangulation algorithm with least square method”, Dec. 2015.  Çağdaş Egemen Öztürk (M.S.), “Design and implementation of a mobile prescription system with patient-healthcare professional interaction”, May 2015.  Sezer Uzungenç (M.S.), “Dynamic multi threshold priority packet scheduling algorithms for wireless sensor networks”, May 2015.  Göktuğ Ataç (M.S.), “An energy efficient routing algorithm (X-centric routing) for sensor networks”, Nov. 2009. o Mr. Ataç is the first M.S. graduate of the Computer Engineering Department as well as the Faculty of Engineering, Kadir Has University, Istanbul, Turkey.  Oral Gökgöl (M.S.), “A new priority based packet scheduler with deadline considerations”, 2006.

Current Graduate Students

 Murat Kaya (Ph.D.)  Tuğberk Kocatekin (Ph.D.)  Tayyip Topuz (M.S.)  Lana Hamad (M.S.) – Yıldız Technical University  Sahar Salah (M.S.) – Yıldız Technical University  Melda Sancaklı (M.S.) – Yıldız Technical University

Publications

 D. Shehzad, S. Gorcuyeva, T. Dağ and B. Bozkurt, “Novel application software for the semi-automated analysis of infrared meibography images”, Cornea, vol. 38, no. 11, pp. 1456-1464, Nov. 2019.  D. Shehzad and T. Dağ, “LSB image steganography based on blocks matrix determinant method,” KSII Transactions on Internet and Information Systems, vol. 13, no. 7, pp. 3778-3793, Jul. 2019.  H. Kulan and T. Dağ, “Analysis of rescued learning with different drugs in down syndrome”, International Journal of Bioscience, Biochemistry and Bioinformatics, vol. 9, no. 3, pp. 173-179, Jul. 2019.  H. Kulan and T. Dağ, “In slico identification of critical proteins associated with learning process and immune system for down syndrome,” Plos One, vol. 14, no. 1, pp. 1-18, Jan. 2019.  T. Dağ, “Non-preemptive priority scheduler with multiple thresholds for network routers,” Journal of Engineering Sciences, vol. 24, no. 2, pp. 246–254, Apr. 2018.  T. Dağ and T. Arsan, “Received signal strength based least squares lateration algorithm for indoor localization,” Computers & Electrical Engineering, vol. 66, pp. 114–126, Feb. 2018.  K. Cengiz and T. Dağ, “Energy aware multi-hop routing protocol for WSNs,” IEEE Access, vol. 6, pp. 2622–2633, Feb. 2018.  M. Shoaib, Z. Khan, D. Shehzad, T. Dağ, A. Iqbal, and N. Ul, “Performance improvement of threshold based audio steganography using parallel computation,” International Journal of Advanced Computer Science and Applications, vol. 7, no. 10, pp. 290–294, Oct. 2016.  K. Cengiz and T. Dağ, “Improving energy-efficiency of WSNs through LEFCA,” International Journal of Distributed Sensor Networks, vol. 12, no. 8, Aug. 2016.  D. Demirkol, T. Dağ, and T. Arsan, “Comparison of various indoor positioning 3 systems techniques,” International Journal of Innovative Technology and Exploring Engineering, vol. 6, no. 1, pp. 26–30, Jun. 2016.  E. Alp, T. Dağ, and T. Arsan, “Indoor positioning system by using triangulation algorithm,” International Journal of Innovative Technology and Exploring Engineering, vol. 5, no. 8, pp. 12–18, Jan. 2016.  S. Uzungenç and T. Dağ, “A QoS efficient scheduling algorithm for wireless sensor networks,” International Journal of Innovative Technology and Exploring Engineering, vol. 4, no. 12, pp. 48–50, May 2015.  Ç. E. Öztürk and T. Dağ, “The design and implementation of a mobile prescription system,” International Journal of Innovative Technology and Exploring Engineering, vol. 4, no. 12, pp. 45–47, May 2015.  K. Cengiz and T. Dağ, “A review on the recent energy-efficient approaches for the Internet protocol stack,” EURASIP Journal on Wireless Communications and Networking, vol. 2015, no. 108, Apr. 2015.  T. Dağ and I. Stavrakakis, “Proactive congestion control for high speed networks,” Computer Networks, vol. 43, no. 6, pp. 761–775, Dec. 2003.  T. Dağ and I. Stavrakakis, “Evaluation of ABR traffic management under various system time scales,” Computer Networks (formerly known as Computer Networks and ISDN Systems, vol. 29, no. 17-18, pp. 2103–2117, Feb. 1998.

Conferences

 L. Barodi and T. Dağ, “The performance of the RSS-based least squares lateration algorithm for indoor localization”, In Proc. The 4th International Conference on Sustainable Information Engineering and Technology (SIET’19), West Nusa Tenggara, Indonesia, Sep. 2019.  H. Kulan and T. Dağ, “Analysis of rescued learning with different drugs in down syndrome”, In Proc. 2019 9th International Conference on Bioscience, Biochemistry and Bioinformatics (ICBBB’19), Singapore, Jan. 2019.  H. Kulan and T. Dağ, “Importance of regional differences in brain throughout aging for down syndrome”, In Proc. The 9th International Conference on Computational Systems-Biology and Bioinformatics (CSBio’18), Bangkok, Thailand, Dec. 2018.  H. Kulan and T. Dağ, “Using machine learning classifiers to identify the critical proteins in down syndrome”, In Proc. The 2nd International Conference on Bioinformatics and Computational Intelligence (ICBCI’18), Hong Kong, China, July 2018.  D. Shehzad and T. Dağ, “A novel image steganography technique based on similarity of bits pairs”, In Proc. 2017 IEEE 8th Control and System Graduate Research Colloquium (ICSGRC’17), Shah Alam, Malaysia, Aug. 2017, pp. 99-104.  K. Cengiz and T. Dağ, “Multi-hop low energy fixed clustering algorithm (M- LEFCA) for WSNs”, In Proc. 2016 IEEE 3rd International Symposium on Telecommunication Technologies (ISTT’16), Kuala Lumpur, Malaysia, Nov. 2016, pp. 31-34.  K. Cengiz and T. Dağ, “Extending the lifetime of WSNs with maximum energy selection algorithm (MESA)”,In Proc. 2016 IEEE International Black Sea Conference on Communications and Networking (BlackSeaCom’16), Varna, Bulgaria, June 2016.  K. Cengiz and T. Dağ, “Nearest fixed clustering algorithm (NFCA) for wireless sensor networks”, In Proc. 2016 19th International Symposium on Electrical Apparatus and Technologies (SIELA’16), Burgas, Bulgaria, May 2016.  T. Dağ and S. Uzungenç, “Dynamic multi threshold priority packet scheduling algorithms”, In Proc. 2016 4th International Conference on Electronics Engineerings and Technology (ICEET’16), Denpasar, Indonesia, April 2016.  K. Cengiz and T. Dağ, “Low energy fixed clustering algorithm (LEFCA) for wireless sensor networks”, In Proc. 2015 International Conference on Computing and Network Communications (CoCoNet’15), Trivandrum, India, Dec. 2015, pp. 79- 4 84.  T. Dağ and K. Cengiz, “Towards energy efficient MAC protocols”, In Proc. The 18th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI’14), Orlando, FL, July 2014.  M.S. Ergen, S. Kutlan, T. Dağ and H.Dağ, “Implementation of a SDN (Software Defined Network)”, In Proc. The 18th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI’14), Orlando, FL, July 2014.  T. Dağ, “Max-Pivot routing for opportunistic networks,” In Proc. The 17th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI’13), Orlando, FL, July 2013.  B. Özkan and T. Dağ, “Kablosuz hasta takip,” In Proc. Elektrik-Elektronik ve Bilgisayar Mühendisliği Sempozyumu (ELECO’12), Bursa,Turkey, Nov. 2012.  M. Erdoğan, K. Günel, T. Koç, H.Ü. Sökün and T. Dağ, “Fırsatçı ağlarda taşırma ve kısmi taşırma yöntemleriyle yönlendirme performans analizi,” In Proc. 20th Signal Processing and Communications Applications Conference (SIU’12), Fethiye, Muğla, Turkey, Apr. 2012.  G. Ataç and T. Dağ, “An energy efficient routing algorithm (X-Centric routing) for sensor networks”, In Proc. The 15th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI’11), Orlando, FL, July 2011.  T. Dağ, “Dynamic priority packet scheduler with deadline considerations (DPD)”, In Proc. The 14th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI’10), Orlando, FL, Jume 2010.  T. Dağ, “The modified proactive feedback based flow control scheme for best- effort applications”, In Proc. The 11th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI’07), Orlando, FL, July 2007.  T. Dağ, “SPD (Static priority with deadline considerations) packet scheduling algorithm for achieving better QoS,” In Proc. International Conference on Networking and Services (ICNS’07), Athens, Greece, June 2007.  T. Dağ and I. Stavrakakis, “Design of real-time VBR traffic shaping schemes by considering the impact of both buffer overflows and deadline violations,” In Proc. The 9th World Multi-Conference on Systemics, Cybernetics and Informatics (WMSCI’05), Orlando, FL, July 2005.  T. Dağ and I .Stavrakakis, “QoS based ABR service under the PF based flow control scheme,” In Proc. IEEE International Conference on Communications (ICC'99), Vancouver, BC, Canada, June 1999, pp. 124-128, vol. 1.  T. Dağ and I. Stavrakakis, “A proactive feedback based flow control scheme for ABR services,” In Proc. Third Asia-Pacific Conference on Communications (APCC’97), Sydney, Australia, Dec. 1997.  T. Dağ and I. Stavrakakis, “On the impact of time scales on feedback based rate control,” In Proc. IEEE Global Telecommunications Conference (GLOBECOM’97), Phoenix, AZ, Nov. 1997, pp. 1685-1689, vol. 3.  T. Dağ and I. Stavrakakis, “Toward a time-scale based framework for ABR traffic management,” In Proc. EXPERT ATM Traffic Symposium, Mykonos, Greece, Sep. 1997.  T. Dağ and I. Stavrakakis, “Study of the impact of network and source time scales on feedback based congestion control,” In Proc. SPIE 2917, Broadband Access Systems, Boston, MA, Nov. 1996.,

Projects  Consultant in “Mobil Evrak Gönderim Kalitesinin Arttırılması için OCR ile Veri İşleme”, Koç Finans, 2021.  Consultant in “Optimizasyon ve Makine Öğrenmesi Yöntemleri ile Firma Çalışma Alanlarının Belirlenmesi”, HepsiJet, 2021.  Researcher in “Parmak İzi – Örüntü Eşleştirme Yöntemi ile Kapalı Alan Konum Belirleme”, Vodafone, 2015.  Researcher in “Kapalı Alan Coğrafi Konumlandırma”, Vodafone, 2014.

Professional Services

 IEEE BlackSeaCOM’17 Organizing Committee Member  IEEE BlackSeaCOM’16 Organizing Committee Member 5  HONET’12 Committee Member (Visa and Venue Committee Co-chair)  IEEE PIMRC’10 Executive Committee Member (Web Site and Publications Chair)  IEEE ICC’06 Executive Committee Member (Web Site Chair and Conference Secretary)  Reviewer for various SCI, SCI-EXP journals and conference

Honors

 Research Assistantship awarded by Northeastern University, Electrical and Computer Engineering Department, funded by Air Force Office of Scientific Research and National Science Foundation  Outstanding Academic Performance scholarship from Northern Telecom (NETAS), Turkey  Scholarship from Mehmet Nazif Gunal (MNG), Turkey  Bulent Kerim Altay Best Student Award from METU EE Department (3 times)

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