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Journals

• [J11] M. S. Ibrahim, A. S. Zamzam, A. Konar, and N. D. Sidiropoulos, "Cell-Edge Detection via Selective Cooperation and Generalized Canonical Correlation", accepted, IEEE Transactions on Wireless Communications, June 2021.

• [J10] A. Konar, and N. D. Sidiropoulos, "Graph matching via the lens of supermodularity", accepted, IEEE Transactions on Knowledge and Data Engineering, July 2020. [pdf]

• [J9] M. Salah, A. Konar, and N. D. Sidiropoulos, "Fast algorithms for joint multicast beamforming and antenna selection in Massive MIMO", IEEE Transactions on Signal Processing, vol. 68, pp. 1897-1909, March 2020.

• [J8] A. Konar, and N. D. Sidiropoulos, "A simple and effective approach for transmit antenna selection in multi-user massive MIMO leveraging submodularity", IEEE Transactions on Signal Processing, vol. 66, no. 18, pp. 4869-4883, September 2018. [pdf]

• [J7] Y. Shi, A. Konar, , N. D. Sidiropoulos, X.-P. Mao, and Y.-T. Liu, "Learning to beamform for minimum outage", IEEE Transactions on Signal Processing, vol. 66, no. 19, pp. 5180-5193, September 2018. [pdf]

• [J6] A. Konar, and N. D. Sidiropoulos, "First-order methods for fast Feasibility Pursuit of non-convex QCQPs", IEEE Transactions on Signal Processing, vol. 65, no. 22, pp. 5927-5941, November 2017. [pdf]

• [J5] A. Konar, and N. D. Sidiropoulos, "Fast approximation algorithms for a class of non-convex QCQP problems using first-order methods", IEEE Transactions on Signal Processing, vol. 65, no. 13, pp. 3494-3509, July 2017. [pdf]

• [J4] A. Konar, and N. D. Sidiropoulos, "Parametric frugal sensing for autoregressive and autoregressive moving average power spectra", IEEE Transactions on Signal Processing, vol. 64, no. 20, pp. 5353-5366, October 2016. [pdf]

• [J3] A. Konar, and N. D. Sidiropoulos, "Hidden convexity in QCQP with Toeplitz-Hermitian quadratics", IEEE Signal Processing Letters, vol. 22, no. 10, pp. 1623-1627, October 2015. [pdf]

• [J2] O. Mehanna, K. Huang, B. Gopalakrishnan, A. Konar, and N. D. Sidiropoulos, "Feasible Point Pursuit and successive approximation of non-convex QCQPs", IEEE Signal Processing Letters, vol. 22, pp. 804-808, July 2015. [pdf]

• [J1] A. Konar, N. D. Sidiropoulos, and O. Mehanna, "Parametric frugal sensing of power spectra for moving average models", IEEE Transactions on Signal Processing, vol. 63, no. 5, pp. 1073-1085, March 2015. [pdf]

Computer Science Conferences

• [C6] A. Konar, and N. D. Sidiropoulos, "The triangle-densest-k subgraph problem: Hardness, Lovasz extension and application to document summarization", in Proc. AAAI 2022, February 22 - March 1, 2022, Virtual Conference. [Acceptance rate: 15%]

• [C5] P. A. Karakasis*, A. Konar*, (* equal contribution) and N. D. Sidiropoulos, "Joint Graph Embedding and Alignment with Spectral Pivot", in Proc. ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, August 14-18, 2021, Singapore. [Acceptance rate: 15.6%] [slides]

• [C4] A. Konar, and N. D. Sidiropoulos, "Exploring the subgraph density-size trade-off via the Lovasz extension", in Proc. ACM International Conference on Web Search and Data Mining, March 8-12, 2021, Jerusalem, Israel. [Acceptance rate: 18.6%] [slides] [poster]

• [C3] A. Konar, and N. D. Sidiropoulos, "Soft graph matching: Submodular relaxation and Lovasz extension", in Proc. IEEE International Conference on Data Mining, November 17-20, 2020, Sorrento, Italy. [Acceptance rate: 9.8% (Full paper)] [pdf] [slides]

• [C2] A. Konar, and N. D. Sidiropoulos, "Mining large quasi-cliques with quality guarantees from vertex neighborhoods", in Proc. ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, August 23-27, 2020, San Diego, CA. [Acceptance rate: 16.9%] [pdf] [slides] [promo video]

• [C1] A. Konar, and N. D. Sidiropoulos, "Iterative graph alignment via supermodular approximation", in Proc. IEEE ICDM, November 8-11, 2019, Beijing, China. [Acceptance rate: 18.5%] [slides]

Signal Processing Conferences

• [C15] F. Almutairi, A. Konar, A. S. Zamzam, and N. D. Sidiropoulos, "Phased: Phase-aware submodularity-based energy disaggregation", in Proc. ACM NILM 2020, Nov. 18, 2020, Yokohama, Japan.

• [C14] A. Konar, and N. D. Sidiropoulos, "Fast optimization of Boolean quadratic functions via iterative submodular approximation and max-flow", in Proc. IEEE ICASSP 2019, May 12-17, 2019, Brighton, United Kingdom. [poster]

• [C13] M. Salah, A. Konar, and N. D. Sidiropoulos, "Mirror-Prox SCA algorithm for multicast beamforming and antenna selection", in Proc. IEEE SPAWC 2018, June 25-28, Kalamata, Greece. [poster]

• [C12] K. Slavakis, A. Konar, and N. D. Sidiropoulos, "Fast projection-based solvers for the non-convex quadratically constrained quadratic feasibility problem", in Proc. IEEE ICASSP 2018, April 15-20, 2018, Calgary, Canada.

• [C11] F. Almutairi, A. Konar, and N. D. Sidiropoulos, "Scalable energy disaggregation via successive submodular approximation", in Proc. IEEE ICASSP 2018, April 15-20, 2018, Calgary, Canada.

• [C10] Y. Shi, A. Konar, N. D. Sidiropoulos, X.-P.Mao, and Y.-T Liu, "Transmit beamforming for minimum outage via stochastic approximation", in Proc. IEEE CAMSAP 2017, December 10-13, 2017, Curacao, Dutch Antilles. [slides]

• [C9] A. Konar, A. S. Zamzam, and N. D. Sidiropoulos, "Decentralized power system state estimation via non-convex multi-agent optimization", in Proc. IEEE GLOBALSIP 2017, November 14-16, 2017, Montreal, Canada. [slides]

• [C8] A. Konar, and N. D. Sidiropoulos, "Greed is good: Leveraging submodularity for antenna selection in Massive MIMO", in Proc. Asilomar Conference on Signals, Systems and Computers, October 29 - November 1, 2017, Pacific Grove, CA. [slides]

• [C7] A. Konar, and N. D. Sidiropoulos, "Fast Feasibility Pursuit for non-convex QCQPs via first-order methods", in Proc. IEEE ICASSP 2017, March 5-9, 2016, New Orleans, USA. [slides]

• [C6] M. A. Vazquez, A. Konar , L. Blanco, N. D. Sidiropoulos and A. I. Perez-Neira, "Non-convex consensus ADMM for satellite precoder design", in Proc. IEEE ICASSP 2017, March 5-9, 2016, New Orleans, USA.

• [C5] A. Konar, and N. D. Sidiropoulos, "A fast approximation algorithm for single-group multicast beamforming with large antenna arrays", in Proc. IEEE SPAWC 2016, July 3-6, 2016, Edinburgh, UK. [poster]

• [C4] A. Konar, and N. D. Sidiropoulos, "Parametric frugal sensing of autoregressive power spectra", in Proc. IEEE ICASSP 2016, March 20-25, 2016, Shanghai, China. [poster]

• [C3] A. Konar, and N. D. Sidiropoulos, "Distributed compression and maximum-likelihood reconstruction of finite autocorrelation sequences", in Proc. Asilomar Conference on Signals, Systems and Computers, November 8-11, 2015, Pacific Grove, CA. [poster]

• [C2] A. Konar, R. Sun, N. D. Sidiropoulos, and Z.-Q. Luo, "Interference alignment via Feasible Point Pursuit", in Proc. SPAWC 2015, June 28-July 1, 2015, Stockholm, Sweden. [poster]

• [C1] A. Konar, and N. D. Sidiropoulos, "Parametric frugal sensing of moving average power spectra," in Proc. ICASSP 2015, April 19-24, 2015, Brisbane, Australia. [poster]