Nikolaos Tziavelis

According to our database, Nikolaos Tziavelis authored at least 16 papers between 2019 and 2026.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of four.

2026

Any-k Algorithms for Enumerating Ranked Answers to Conjunctive Queries.

Nikolaos Tziavelis, Wolfgang Gatterbauer, Mirek Riedewald

ACM Trans. Database Syst., March, 2026

Enumeration Theory through the Lens of Database Challenges.

Florent Capelli, Nofar Carmeli, Alessio Conte, Benny Kimelfeld, Reinhard Pichler, Nikolaos Tziavelis

Proceedings of the Companion of the 45th Symposium on Principles of Database Systems, 2026

The Importance of Parameters in Ranking Functions.

Christoph Standke, Nikolaos Tziavelis, Wolfgang Gatterbauer, Benny Kimelfeld

Proceedings of the 29th International Conference on Database Theory, 2026

Database Theory in Action: Direct Access to Query Answers.

Jiayin Hu, Nikolaos Tziavelis

Proceedings of the 29th International Conference on Database Theory, 2026

2025

Fine-Grained Dichotomies for Conjunctive Queries with Minimum or Maximum.

Nofar Carmeli, Nikolaos Tziavelis

CoRR, October, 2025

2024

Ranked Enumeration for Database Queries.

Nikolaos Tziavelis, Wolfgang Gatterbauer, Mirek Riedewald

SIGMOD Rec., September, 2024

2023

Efficient Ranked Access over Joins.

Nikolaos Tziavelis

Proceedings of the VLDB 2023 PhD Workshop co-located with the 49th International Conference on Very Large Data Bases (VLDB 2023), 2023

Efficient Computation of Quantiles over Joins.

Nikolaos Tziavelis, Nofar Carmeli, Wolfgang Gatterbauer, Benny Kimelfeld, Mirek Riedewald

Proceedings of the 42nd ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems, 2023

2022

Toward Responsive DBMS: Optimal Join Algorithms, Enumeration, Factorization, Ranking, and Dynamic Programming.

Nikolaos Tziavelis, Wolfgang Gatterbauer, Mirek Riedewald

Proceedings of the 38th IEEE International Conference on Data Engineering, 2022

2021

Beyond Equi-joins: Ranking, Enumeration and Factorization.

Nikolaos Tziavelis, Wolfgang Gatterbauer, Mirek Riedewald

Proc. VLDB Endow., 2021

Tractable Orders for Direct Access to Ranked Answers of Conjunctive Queries.

Nofar Carmeli, Nikolaos Tziavelis, Wolfgang Gatterbauer, Benny Kimelfeld, Mirek Riedewald

Proceedings of the PODS'21: Proceedings of the 40th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems, 2021

2020

Optimal Algorithms for Ranked Enumeration of Answers to Full Conjunctive Queries.

Nikolaos Tziavelis, Deepak Ajwani, Wolfgang Gatterbauer, Mirek Riedewald, Xiaofeng Yang

Proc. VLDB Endow., 2020

Loch Prospector: Metadata Visualization for Lakes of Open Data.

Neha Makhija, Mansi Jain, Nikolaos Tziavelis, Laura Di Rocco, Sara Di Bartolomeo, Cody Dunne

Proceedings of the 31st IEEE Visualization Conference, 2020

Optimal Join Algorithms Meet Top-k.

Nikolaos Tziavelis, Wolfgang Gatterbauer, Mirek Riedewald

Proceedings of the 2020 International Conference on Management of Data, 2020

Fair Procedures for Fair Stable Marriage Outcomes.

Nikolaos Tziavelis, Ioannis Giannakopoulos, Rune Quist Johansen, Katerina Doka, Nectarios Koziris, Panagiotis Karras

Proceedings of the Thirty-Fourth AAAI Conference on Artificial Intelligence, 2020

2019

Equitable Stable Matchings in Quadratic Time.

Nikolaos Tziavelis, Ioannis Giannakopoulos, Katerina Doka, Nectarios Koziris, Panagiotis Karras

Proceedings of the Advances in Neural Information Processing Systems 32: Annual Conference on Neural Information Processing Systems 2019, 2019