# Aleksandar Nikolov (computer scientist)

Aleksandar Nikolov is a Bulgarian and Canadian theoretical computer scientist working on differential privacy, discrepancy theory, and high-dimensional geometry. He is a professor at the University of Toronto.
Nikolov obtained his Ph.D. from Rutgers University in 2014 under the supervision of S. Muthukrishnan (Thesis: New computational aspects of discrepancy theory).
Nikolov is the Canada Research Chair in Algorithms and Private Data Analysis.

## Early life and education

Aleksandar Nikolov was born in Varna, Bulgaria, to Bulgarian parents of Banat origin. After attaining primary and secondary education in Varna, he was awarded a presidential scholarship to St. Peter's University in Jersey City, NJ. There he majored in computer science, graduating as the valedictorian of his class. He later pursued graduate studies at Rutgers University, obtaining his PhD in computer science under the supervision of S. Muthukrishnan.

## Academic and research career

Following his doctoral studies, Nikolov joined the University of Toronto as an assistant professor in the Department of Computer Science. His research interests include differential privacy, optimization, and the design and analysis of algorithms. Nikolov has made significant contributions to understanding the mathematical foundations of privacy and the development of efficient algorithms with strong theoretical guarantees.

## Research contributions

Nikolov's work on differential privacy has been particularly influential. He has explored various aspects of privacy-preserving data analysis, including mechanisms for ensuring privacy in statistical queries and optimization problems. His research has advanced the theoretical understanding of how to balance data utility with privacy guarantees.
In addition to privacy, Nikolov has contributed to the field of optimization, focusing on algorithms for high-dimensional data and the development of efficient approximation algorithms. His work often intersects with machine learning, where he addresses problems related to data representation and complexity.

## Publications and citations

Aleksandar Nikolov has published numerous papers in prestigious conferences and journals. His work has been widely cited, reflecting the impact of his research on the computer science community. Some of his notable publications include contributions to conferences such as STOC (Symposium on Theory of Computing), FOCS (Foundations of Computer Science), and SODA (Symposium on Discrete Algorithms).

## Teaching and mentorship

At the University of Toronto, Nikolov is also recognized for his dedication to teaching and mentorship. He teaches courses on algorithms, data privacy, and theoretical computer science, inspiring a new generation of computer scientists. His approach to teaching emphasizes both the theoretical underpinnings of computer science and their practical applications.

## Professional activities and recognition

Nikolov is actively involved in the academic community, serving on program committees for major conferences and reviewing for top journals. His contributions have earned him recognition, highlighting his role as a leading figure in his areas of expertise.

## Recent work and future directions

In recent years, Nikolov has focused on developing a 21st-century framework for addressing contemporary problems in computer science. He advocates for interdisciplinary approaches that combine insights from computer science, mathematics, and other fields to tackle complex challenges. His recent initiatives aim to bridge the gap between theoretical research and practical applications, ensuring that advancements in algorithms and privacy have a meaningful impact on society.