Publications in: Journals | Competitive conferences | Other conferences | Theses

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Journal articles

(Sorted by date of acceptance)

[J53] I. Mantas, E. Papadopoulou, R. I. Silveira, Z. Wang. The Farthest Color Voronoi Diagram in the Plane. Algorithmica, published online, 2025.

[J52] G. Esteban, D. Halperin, R. I. Silveira. Shortest coordinated motions for square robots. Autonomous Robots, volume 49, article 14, 2025.

[J51] T. Ophelders, M. Löffler, R.I. Silveira, F. Staals. Shortest paths in portalgons. Journal of Computational Geometry 15(2):174-221, 2025. Special Issue on SoCG 2023.

[J50] K. Buchin, M. Buchin, J. Gudmundsson, J. Hendriks, E. Hosseini Sereshgi, R.I. Silveira, J. Sleijster, F. Staals, C. Wenk. Roadster: Improved algorithms for subtrajectory clustering and map construction. Computers & Geosciences 196:105845, 2025.

[J49] J. Aguilar, K. Buchin, M. Buchin, E. Hosseini Sereshgi, R.I. Silveira, C. Wenk. Graph Sampling for Map Comparison. ACM Transactions on Spatial Algorithms and Systems 10(3):1-24, 2024.

[J48] D. Garijo, A. Márquez, R. I. Silveira. Continuous Mean Distance of a Weighted Graph. Results in Mathematics 78: 139, 2023.

[J47] P. Bose, G. Esteban, D. Orden, R. I. Silveira. On approximating shortest paths in weighted triangular tessellations. Artificial Intelligence 318:103898, 2023.

[J46] G. Esteban, C. Huemer, R. I. Silveira. New production matrices for geometric graphs. Linear Algebra and its Applications 633:244-280, 2022. Download from publisher.

[J45] P. Bose, P. Cano, R. I. Silveira. Affine invariant triangulations. Computer Aided Geometric Design 91:102039, 2021. Download from publisher.

[J44] Y. Tao, A. Both, R. I. Silveira, K. Buchin, S. Sijben, R. S. Purves , P. Laube, D. Peng, K. Toohey, M. Duckham. A comparative analysis of trajectory similarity measures. GIScience and Remote Sensing, 58:643-669, 2021. Download from publisher.

[J43] I. Parada, V. Sacristán, R. I. Silveira. A new meta-module design for efficient reconfiguration of modular robots. Autonomous Robots 45:457–472, 2021.

[J42] Y. Guo, A. Bardera, M. Fort, R. I. Silveira. A scalable method to construct compact road networks from GPS trajectories. International Journal of Geographical Information Science 35(7):1309-1345, 2021. Download from publisher.

[J41] P.  Bose, P. Cano, M. Saumell, R. I. Silveira. Hamiltonicity for convex shape Delaunay and Gabriel graphs. Computational Geometry: Theory and Applications, 89:101629, 2020. Special issue on WADS 2019. Download from publisher.

[J40] D. Duran, V. Sacristán, R. I. Silveira.  Map construction algorithms: a local evaluation through hiking data. GeoInformatica, 24:633-681, 2020. Download from publisher.

[J39] C. Huemer, A. Pilz, R. I. Silveira. A new lower bound on the maximum number of plane graphs using production matrices. Computational Geometry: Theory and Applications, 84:36-49, 2019. Download from publisher. Special issue on EuroCG 2018.

[J38] D. Garijo, A. Márquez, N. Rodríguez, R. I. Silveira. Computing optimal shortcuts for networks. European Journal of Operational Research 279(1):26-37, 2019. Download from publisher.

[J37] R. I. Silveira, B. Speckmann, K. Verbeek. Non-crossing paths with geographic constraints. Discrete Mathematics and Theoretical Computer Science 21:3:15, 2019.

[J36] C. Huemer, P. Pérez-Lantero, C. Seara, R. I. Silveira. Matching points with disks with a common intersection. Discrete Mathematics 342(7):1885-1893, 2019. Download from publisher.

[J35] K. Buchin, I. Kostitsyna, M. Löffler, R. I. Silveira. Region-based approximation of probability distributions (for visibility between imprecise points among obstacles). Algorithmica, 81:2682–2715, 2019.

[J34] J. Cardinal, V. Sacristán, R. I. Silveira. A Note on Flips in Diagonal Rectangulations. Discrete Mathematics and Theoretical Computer Science 20:2:14, 2018.

[J33] M. Korman, M. Löffler, R. I. Silveira, D. Strash. On the Complexity of Barrier Resilience for Fat Regions. Computational Geometry: Theory and Applications 72:34-51, 2018. Download from publisher.

[J32] N. Rodríguez and R. I. Silveira. Implementing data-dependent triangulations with higher order Delaunay triangulations. ISPRS International Journal of Geo-Information 6(12):390,  2017.

[J31] M. Claverol, D. Garijo, M. Korman, C. Seara, R. I. Silveira. Stabbing Segments with Rectilinear Objects. Applied Mathematics and Computation 309:359-373, 2017. Download from publisher.

[J30] R. Fabila-Monroy, A. García, F. Hurtado, R. Jaume, P. Pérez-Lantero, M. Saumell, R. I. Silveira, J. Tejel, J. Urrutia. Colored Ray Configurations. Computational Geometry: Theory and Applications 68:292-308, 2018. Download from publisher

[J29] K. Buchin, D. Eppstein, M. Löffler, M. Nöllenburg, R. I. Silveira. Adjacency-Preserving Spatial Treemaps. Journal of Computational Geometry 7:100-122, 2016.

[J28] F. Hurtado, M. Korman, M. van Kreveld, M. Löffler, V. Sacristán, A. Shioura, R. I. Silveira, B. Speckmann, T. Tokuyama. Colored Spanning Graphs for Set Visualization. Computational Geometry: Theory and Applications 68:262-276, 2018. Download from publisher

[J27] F. Hurtado, M. Löffler, I. Matos, V. Sacristán, M. Saumell, R.I. Silveira, F. Staals. Terrain visibility with multiple viewpoints. International Journal of Computational Geometry and Applications 24:275-306, 2014. Special issue of ISAAC 2013. Download from publisher

[J26] O. Aichholzer, J. Cardinal, T. Hackl, F. Hurtado, M. Korman, A. Pilz, R.I. Silveira, R. Uehara, P. Valtr, B. Vogtenhuber, E. Welzl. Cell-paths in mono- and bichromatic line arrangements in the plane. Discrete Mathematics and Theoretical Computer Science 16:317-332, 2014.

[J25] A. García, F. Hurtado, M. Korman, I. Matos, M. Saumell, R.I. Silveira, J. Tejel, C.D. Tóth. Geometric biplane graphs II: Graph augmentation. Graphs & Combinatorics 31:427-452, 2015. Download from publisher

[J24] A. García, F. Hurtado, M. Korman, I. Matos, M. Saumell, R.I. Silveira, J. Tejel, C.D. Tóth. Geometric biplane graphs I: Maximal graphs. Graphs & Combinatorics 31:407-425, 2015. Download from publisher

[J23] S. Bereg, F. Hurtado, M. Kano, M. Korman, D. Lara, C. Seara, R.I. Silveira, J. Urrutia, K. Verbeek. Balanced partitions of 3-colored geometric sets in the plane. Discrete Applied Mathematics 181:21-32, 2015. Download from publisher

[J22] E. Arkin, J. M. Díaz-Báñez, F. Hurtado, P. Kumar, J. Mitchell, B. Palop, P. Pérez-Lantero, M. Saumell, R. I. Silveira. Bichromatic 2-center of pairs of points. Computational Geometry: Theory and Applications 48:94-107, 2015. Download from publisher

[J21] L. Barba, M. Korman, S. Langerman, K. Sadakane, R. I. Silveira. Space-time trade-offs for stack-based algorithms. Algorithmica 72:1097-1129, 2015. Download from publisher

[J20] J.M. Díaz-Báñez, M. Korman, P. Pérez-Lantero, A. Pilz, C. Seara, R. I. Silveira. New results on stabbing segments with a polygon. Computational Geometry: Theory and Applications 48:14-29, 2015. Download from publisher

[J19] L. Barba, M. Korman, S. Langerman, R. I. Silveira. Computing a visibility polygon using few variables. Computational Geometry: Theory and Applications 47:918-926, 2014.Download from publisher

[J18] P. Agarwal, B. Aronov, M. van Kreveld, M. Löffler, R. I. Silveira. Computing Correlation between Piecewise-Linear Functions. SIAM Journal on Computing 42-5:1867-1887, 2013.Download from publisher.

[J17] A. Driemel, H. Haverkort, M. Löffler, R. I. Silveira. Flow Computations on Imprecise Terrains. Journal of Computational Geometry 4:38-78, 2013.

[J16] M. Abellanas, M. Claverol, G. Hernández, F. Hurtado, V. Sacristán, M. Saumell, R. I. Silveira. Improving shortest paths in the Delaunay triangulation. International Journal of Computational Geometry and Applications 22:559-576, 2012. Download from publisher.

[J15] C. Gray, F. Kammer, M. Löffler, R. I. Silveira. Removing Local Extrema from Imprecise Terrains. Computational Geometry: Theory and Applications 45:334-349, 2012. Download from publisher.

[J14] K. Buchin, M. Buchin, M. van Kreveld, M. Löffler, R.I. Silveira, C. Wenk, L. Wiratma. Median Trajectories. Algorithmica 66:595-614, 2013. Download from publisher.

[J13] K. Buchin, M. Buchin, M. van Kreveld, M. Löffler, J. Luo, R.I. Silveira. Processing aggregated data: the location of clusters in health data. GeoInformatica 16:497-521, 2012.Download from publisher.

[J12] B. Aronov, K. Buchin, M. Buchin, B. Jansen, T. de Jong, M. van Kreveld, M. Löffler, J. Luo, R.I. Silveira, B. Speckmann. Connect the dot: Computing feed-links for network extension . Journal of Spatial Information Science 3:3-31, 2011.

[J11] D. Mitsche, M. Saumell, R. I. Silveira. On the Number of Higher Order Delaunay Triangulations . Theoretical Computer Science 412):3589-3597, 2011. Download from publisher.

[J10] K. Buchin, M. Buchin, J. Byrka, M. Nöllenburg, Y. Okamoto, R. I. Silveira, A. Wolff. Drawing (Complete) Binary Tanglegrams – Hardness, Approximation, Fixed-Parameter Tractability. Algorithmica 62:309-332, 2012. Download from publisher.

[J9] K. Buchin, S. Cabello, J. Gudmundsson, M. Löffler, J. Luo, G. Rote, R. I. Silveira, B. Speckmann, T. Wolle. Finding the Most Relevant Fragments in Networks. Journal of Graph Algorithms and Applications 14:307-336, 2010.

[J8] M. van Kreveld, R. I. Silveira. Embedding Rivers in Triangulated Irregular Networks with Linear Programming. International Journal of Geographical Information Science 25:615-631, 2011. Download from publisher.

[J7] B. Aronov, M. van Kreveld, M. Löffler, R. I. Silveira. Peeling Meshed Potatoes. Algorithmica 60:349-367, 2011. Download from publisher.

[J6] C. Gray, M. Loffler, R. I. Silveira. Smoothing imprecise 1.5D terrains. International Journal of Computational Geometry and Applications 20:381-414, 2010. Download from publisher.

[J5] M. van Kreveld, M. Löffler, R. I. Silveira. Optimization for first order Delaunay triangulations. Computational Geometry: Theory and Applications 43:377-394, 2010. Download from publisher.

[J4] R. I. Silveira, M. van Kreveld. Towards a Definition of Higher Order Constrained Delaunay Triangulations. Computational Geometry: Theory and Applications 42:322-337, 2009.Download from publisher.

[J3] R. I. Silveira, R. van Oostrum. Flooding countries and destroying dams. International Journal of Computational Geometry and Applications 20:361-380, 2010. Download from publisher.

[J2] M. G. Borgelt, M. van Kreveld, M. Löffler, J. Luo, D. Merrick, R. I. Silveira, M. Vahedi. Planar Bichromatic Minimum Spanning Trees. Journal of Discrete Algorithms 7:469-478, 2009. Download from publisher.

[J1] R. I. Silveira, M. van Kreveld. Optimal Higher Order Delaunay Triangulations of Polygons. Computational Geometry: Theory and Applications 42:803-813, 2009. Download from publisher.

Papers at competitive peer-reviewed conferences

[C42] S. Cabello, D. Garijo, A. Kalb, F. Klute, I. Parada and R. I. Silveira. Algorithms for Distance Problems in Continuous Graphs. In Proc. 19th Algorithms and Data Structures Symposium (WADS 2025), 13:1-13:14, 2025. Full version in arXiv.

[C41] P. Bose, G. Esteban, D. Orden, R. I. Silveira and T. Tuttle. On geodesic disks enclosing many points. In Proc. 19th Algorithms and Data Structures Symposium (WADS 2025), 10:1-10:20, 2025.

[C40] A. Acharyya, V. Keikha, M. Saumell and R. I. Silveira. Computing largest minimum color-spanning intervals of imprecise points. In Proc. 15th Latin American Theoretical Informatics Symposium (LATIN 2024), pages 81-96, 2024. Full version in arXiv.

[C39] G. Esteban, D. Halperin, V. Ruiz, V. Sacristan, R. I. Silveira. Shortest coordinated motion for square robots. In Proc. 18th Algorithms and Data Structures Symposium (WADS 2023), pages 430-443, 2023.

[C38] M. Löffler, T. Ophelders, R. I. Silveira, F. Staals. Shortest Paths in Portalgons. In Proc. 39th International Symposium on Computational Geometry (SoCG 2023), pages 48:1–48:16, 2023. See also Full version in arXiv.

[C37] M. Buchin, I. van der Hoog, T. Ophelders, L. Schlipf, R. I. Silveira, F. Staals. Efficient Fréchet distance queries for segments. In Proc. 30th Annual European Symposium on Algorithms (ESA 2022), pages 29:1-29:14, 2022. Full version in arXiv.

[C36] G. Esteban, P. Bose, D. Orden, R. I. Silveira. On approximating shortest paths in weighted triangular tessellations. In Proc. 16th International Conference and Workshops on Algorithms and Computation (WALCOM 2022), pages 409-421, 2022. Download from publisher.

[C35] A. Acharyya, R. Jallu, M. Löffler, G. Meijer, M. Saumell, R. I. Silveira, F. Staals. Terrain prickliness: theoretical grounds for high complexity viewsheds. In Proc. 11th International Conference on Geographic Information Science (GIScience 2021), pages 10:1-10:16, 2021.

[C34] E. Arseneva, P. Bose, P. Cano and R. I. Silveira. Flips in Higher Order Delaunay triangulations. In Proc. 14th Latin American Theoretical Informatics Symposium (LATIN), pages 223-234, 2020. Download from publisher.

[C33] I. Mantas, E. Papadopoulou, R. I. Silveira, V. Sacristán. Linear-size farthest color Voronoi diagrams: conditions and algorithms. In Proc. 14th Latin American Theoretical Informatics Symposium (LATIN), pages 283-295, 2020. Download from publisher.

[C32] P. Bose, P. Cano, M. Saumell, R. I. Silveira. Hamiltonicity for Convex Shape Delaunay and Gabriel Graphs. In Proc. 16th Algorithms and Data Structures Symposium (WADS), pages 196-210, 2019. Download from publisher. Paper invited to special issue (see [J41]).

[C31] D. Garijo, A. Márquez, N. Rodríguez, R. I. Silveira. Computing optimal shortcuts for networks. In  Proc. 29th International Symposium on Algorithms and Computation (ISAAC), pages 15:1-15:12, 2018.

[C30] J. Gudmundsson, I. Kostitsyna, M. Löffler, T. Mueller, V. Sacristán, R. I. Silveira. Theoretical analysis of beaconless geocast protocols in 1D. In Proc. 15th  Workshop on Analytic Algorithmics and Combinatorics (ANALCO), pages 62-76, 2018. Download from publisher.

[C29] K. Buchin, M. Buchin, D. Duran, B. T. Fasy, R. Jacobs, V. Sacristán, R. I. Silveira, F. Staals, C. Wenk. Clustering Trajectories for Map Construction. In Proc. 25th SIGSPATIAL International Conference on Advances in Geographic Information Systems (GIS), pages 14:1-14:10, 2017. Download from publisher.

[C28] R. I. Silveira, B. Speckmann, K. Verbeek. Non-crossing paths with geographic constraints. In Proc. 25th International Symposium on Graph Drawing & Network Visualization (GD’17), pages 454-461, 2018.

[C27] N. Rodríguez and R. I. Silveira. Implementing data-dependent triangulations with higher order Delaunay triangulations. In Proc. 24th SIGSPATIAL International Conference on Advances in Geographic Information Systems (GIS), pages 26:1-26:10, 2016. Download from publisher (open access following link).

[C26] I. Parada, V. Sacristán, R. I. Silveira. A New Meta-Module for
Efficient Reconfiguration of Hinged-Units Modular Robots. In Proc. IEEE International Conference on Robotics and Automation (ICRA), pages 5197-5202, 2016. Download from publisher.

[C25] R. van Zon, D. Escudero-Rodrigo, D. Halperin, I. Jovanovic, R. Vito, R. I. Silveira, K. Buchin. Real-time collision detection for multiple packaging robots using monotonicity of configuration subspaces. In Proc. IEEE International Conference on Automation Science and Engineering (CASE), pages 1638-1643, 2015. Download from publisher.

[C24] M. Claverol, D. Garijo, M. Korman, C. Seara, R. I. Silveira. Stabbing Segments with Rectilinear Objects. In Proc. 20th International Symposium on Fundamentals of Computation Theory (FCT), pages 53-64, 2015. Download from publisher.

[C23] K. Buchin, I. Kostitsyna, M. Löffler, R. I. Silveira. Region-based Approximation Algorithms for Visibility between Imprecise Locations. In Proc. Algorithm Engineering and Experiments 2015 (ALENEX), pages 94-103, 2015. Download from publisher.

[C22] F. Hurtado, M. Löffler, I. Matos, V. Sacristán, M. Saumell, R. I. Silveira, F. Staals. Terrain visibility with multiple viewpoints. In Proc. 24th International Symposium on Algorithms and Computation (ISAAC), pages 317-327, 2013. Full version.

[C21] M. Korman, M. Löffler, R. I. Silveira, D. Strash. On the Complexity of Barrier Resilience for Fat Regions. In Proc. 9th International Symposium on Algorithms and Experiments for Sensor Systems, Wireless Networks and Distributed Robotics (ALGOSENSORS), pages 201-216, 2014. Full version.

[C20] F. Hurtado, M. Korman, M. van Kreveld, M. Löffler, V. Sacristán, R. I. Silveira, B. Speckmann. Colored Spanning Graphs for Set Visualization. In Proc. 21st International Symposium on Graph Drawing (GD), pages 280-291, 2013.

[C19] L. Barba, M. Korman, S. Langerman, K. Sadakane, R. I. Silveira. Space-time trade-offs for stack-based algorithms. In Proc. 30th Symposium on Theoretical Aspects of Computer Science (STACS), pages 281-292, 2013. Full version.

[C18] J.M. Díaz-Báñez, M. Korman, P. Pérez-Lantero, A. Pilz, C. Seara, R. I. Silveira. New results on stabbing segments with a polygon. In Proc. 8th International Conference on Algorithms and Complexity (CIAC), pages 146-157, 2013.

[C17] E. Arkin, J.M. Díaz-Báñez, F. Hurtado, P. Kumar, J. Mitchell, B. Palop, P. Pérez-Lantero, M. Saumell, R. I. Silveira. Bichromatic 2-center of pairs of points. In Proc. 10th Latin American Theoretical Informatics Symposium (LATIN), pages 25-36, 2012. Download from publisher.

[C16] L. Barba, M. Korman, S. Langerman, R. I. Silveira. Computing a visibility polygon using few variables. In Proc. 22nd International Symposium on Algorithms and Computation (ISAAC), pages 70-79, 2011. Download from publisher.

[C15] A. Driemel, H. Haverkort, M. Löffler, R. I. Silveira. Flow Computations on Imprecise Terrains. In Proc. 12th Algorithms and Data Structures Symposium (WADS), pages 350-361, 2011. Download from publisher

[C14] K. Buchin, D. Eppstein, M. Löffler, M. Nöllenburg, R. I. Silveira. Adjacency-Preserving Spatial Treemaps. In Proc. 12th Algorithms and Data Structures Symposium (WADS), pages 159-170, 2011. Download from publisher

[C13] K. Buchin, M. Buchin, M. van Kreveld, M. Löffler, R. I. Silveira, C. Wenk, L. Wiratma. Median Trajectories. In Proc. 18th European Symposium on Algorithms (ESA), pages 463-474, 2010. Download from publisher

[C12] P. Agarwal, B. Aronov, M. van Kreveld, M. Löffler, R. I. Silveira. Computing Similarity between Piecewise-Linear Functions. In Proc. 26th ACM Symposium on Computational Geometry (SoCG), pages 375-383, 2010. Download from publisher

[C11] D. Mitsche, M. Saumell, R. I. Silveira. On the Number of Higher Order Delaunay Triangulations. In Proc. 7th International Conference on Algorithms and Complexity (CIAC), pages 217-228, 2010. Download from publisher

[C10] B. Aronov, K. Buchin, M. Buchin, M. van Kreveld, M. Löffler, J. Luo, R. I. Silveira, B. Speckmann. Connect the Dot: Computing Feed-links with Minimum Dilation. In Proc. Algorithms and Data Structures Symposium (WADS), pages 49-60, 2009. Download from publisher

[C9] M. van Kreveld, R. I. Silveira. Embedding Rivers in Polyhedral Terrains. In Proc. 25th ACM Symposium on Computational Geometry (SoCG), pages 169-178, 2009. Download from publisher

[C8] K. Buchin, S. Cabello, J. Gudmundsson, M. Löffler, J. Luo, G. Rote, R. I. Silveira, B. Speckmann, T. Wolle. Detecting Hotspots in Geographic Networks. In Advances in GIScience. Proceedings of the 12th AGILE Conference, pages 217-231, 2009. Winner of Best Paper Award. Download from publisher.

[C7] B. Aronov, K. Buchin, M. Buchin, B. Jansen, T. de Jong, M. van Kreveld, M. Löffler, J. Luo, R. I. Silveira, B. Speckmann. Feed-links for Network Extensions. In Proc. 16th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems (ACM GIS 2008), pages 308-316, 2008.

[C6] C. Gray, M. Löffler, R. I. Silveira. Smoothing Imprecise 1.5D Terrains. In Proc. 6th Workshop on Approximation and Online Algorithms (WAOA), pages 214-226, 2009. Download from publisher

[C5] K. Buchin, M. Buchin, J. Byrka, M. Nöllenburg, Y. Okamoto, R. I. Silveira, A. Wolff. Drawing (Complete) Binary Tanglegrams: Hardness, Approximation, Fixed-Parameter Tractability. In Proc. 16th International Symposium on Graph Drawing (GD), pages 324-335, 2009. Download from publisher. Download full version.

[C4] K. Buchin, M. Buchin, M. van Kreveld, M. Löffler, J. Luo, R. I. Silveira. Clusters in Aggregated Health Data. In Headway in Spatial Data Handling. 13th International Symposium on Spatial Data Handling (SDH), pages 77-90, 2008. Download from publisher

[C3] R. I. Silveira, M. van Kreveld. Optimal Higher Order Delaunay Triangulations of Polygons. In Proc. 8th Latin American Theoretical Informatics Symposium (LATIN), pages 133-145, 2008. Download from publisher

[C2] R. I. Silveira, R. van Oostrum. Flooding countries and destroying dams. In Proc. 10th Workshop on Algorithms and Data Structures (WADS), pages 227-238, 2007.

[C1] M. van Kreveld, M. Löffler, R. I. Silveira. Optimization for First Order Delaunay Triangulations. In Proc. 10th Workshop on Algorithms and Data Structures (WADS), pages 175-187, 2007.

Papers at other peer-reviewed conferences

[W53] F. Brunck, M. Löffler and R. I. Silveira. A curve with rotation number one that is not universal for beacon routing. Abstracts 41st European Workshop on Computational Geometry (EuroCG), 2025.

[W52] J. Cáceres, D. Garijo, A. Márquez, R. I. Silveira. The Borsuk number of a graph. In Abstracts Discrete Mathematics Day 2024 (DMD 2024), pages 148-153, 2024.

[W51] S. de Berg, G. Esteban, R. I. Silveira, F. Staals. Exact solutions to the Weighted Region Problem. Proc. 36th Canadian Conference on Computational Geometry (CCCG 2024), pages 91-97, 2024.

[W50] S. de Berg, G. Esteban, R. I. Silveira, F. Staals. Exact solutions to the Weighted Region Problem. Abstracts 40th European Workshop on Computational Geometry (EuroCG), 2024.

[W49] G. Esteban, D. Halperin, V. Ruíz, V. Sacristán, R. I. Silveira. Shortest coordinated motion for a pair of square robots. Abstracts 39th European Workshop on Computational Geometry (EuroCG 2023), pages 21:1-21:7, 2023. Abstract book available here.

[W48] G. Esteban, P. Bose, D. Orden and R. I. Silveira. Spanning ratio of shortest paths in weighted square tessellations. Abstracts 38th European Workshop on Computational Geometry (EuroCG 2022), pages 65:1-65:7,  2022. Abstract book available here.

[W47] D. Garijo, A. Marquez and R. I. Silveira. Continuous mean distance of a weighted graph. Abstracts 38th European Workshop on Computational Geometry (EuroCG 2022), pages 21:1-21:6, 2022. Abstract book available here.

[W46] J. Aguilar, K. Buchin, M. Buchin, E. Hosseini, R. I. Silveira, C. Wenk. Graph Sampling for Map Comparison. 3rd ACM SIGSPATIAL International Workshop on Spatial Gems (SpatialGems 2021), 2021. Best Paper Award.

[W45] M. Löffler, R. I. Silveira, F. Staals. Shortest Paths in Portalgons. Abstracts 37th European Workshop on Computational Geometry (EuroCG), 2021.

[W44] A. Acharyya, R. Jallu, M. Löffler, G. Meijer, M. Saumell, R. I. Silveira, F. Staals, H. R. Tiwary. Terrain prickliness: theoretical grounds for low complexity viewsheds. Abstracts 37th European Workshop on Computational Geometry (EuroCG), 2021.

[W43] K. Buchin, M. Buchin, J. Gudmundsson, J. Hendriks, E. Hosseini, V. Sacristán, R. I. Silveira, J. Sleijster, F. Staals, C. Wenk. Improved Map Construction using Subtrajectory Clustering. Abstracts 4th ACM SIGSPATIAL Workshop on Location-based Recommendations, Geosocial Networks and Geoadvertising, 5:1-5:4, 2020. Download from publisher.

[W42] E. Arseneva, P. Bose, P. Cano and R. I. Silveira. Flips in Higher Order Delaunay triangulations. In Abstracts 36th European Workshop on Computational Geometry (EuroCG), 2020.

[W41] M. Buchin, I. van der Hoog, T. Ophelders, R. I. Silveira, L. Schlipf and F. Staals.  Improved data structures for Fréchet distance queries. In Abstracts 36th European Workshop on Computational Geometry (EuroCG), 2020.

[W40] P.  Bose, P. Cano, R. I. Silveira. Affine invariant triangulations. In Proc. 31st Canadian Conference in Computational Geometry (CCCG), pages 250-256, 2019.

[W39] D. Halperin, V. Ruiz, V. Sacristán, R. I. Silveira. Optimal coordinated motions for two squares. In Abstracts XVIII Spanish Meeting on Computational Geometry (EGC), page 65, 2019.

[W38] P.  Bose, P. Cano, R. I. Silveira. Affine invariant triangulations. In Abstracts XVIII Spanish Meeting on Computational Geometry (EGC), pages 9-12, 2019.

[W37] P.  Bose, P. Cano, M. Saumell, R. I. Silveira. Hamiltonicity for convex shape Delaunay and Gabriel graphs. In Abstracts 35th European Workshop on Computational Geometry (EuroCG), 2019. Invited to special issue.

[W36] I. Mantas, E. Papadopoulou, R. I. Silveira, V. Sacristán. Linear-size farthest color Voronoi diagrams: conditions and algorithms. In Abstracts 35th European Workshop on Computational Geometry (EuroCG), 2019.

[W35] G. Esteban, C. Huemer, R. I. Silveira. New results on production matrices for geometric graphs. In Abstracts Discrete Mathematics Day 2018 (DMD), Electronic Notes in Discrete Mathematics 68:215-220, 2018. Download from publisher.

[W34] P. Bose, P. Cano, R. I. Silveira. Sequences of spanning trees for L-infinity Delaunay triangulations. In  Abstracts 34th European Workshop on Computational Geometry (EuroCG), pages 49:1-49:6, 2018.

[W33] J. Cardinal, V. Sacristán, R. I. Silveira. A Note on Flips in Diagonal Rectangulations. In  Abstracts 34th European Workshop on Computational Geometry (EuroCG), pages 46:1-46:6, 2018.

[W32] D. Garijo, A. Márquez, N. Rodríguez, R. I. Silveira. Computing optimal shortcuts for networks. In  Abstracts 34th European Workshop on Computational Geometry (EuroCG), pages 45:1-45:6, 2018.

[W31] C. Huemer, A. Pilz, R. I. Silveira. A New Lower Bound on the Maximum Number of Plane Graphs using Production Matrices. In Abstracts 34th European Workshop on Computational Geometry (EuroCG), pages 9:1-9:6, 2018. Paper invited to special issue.

[W30] C. Huemer, A. Pilz, C. Seara, R. I. Silveira. Characteristic polynomials of production matrices for geometric graphs. In The Ninth European Conference on Combinatorics, Graph Theory and Applications (EuroComb), Electronic Notes in Discrete Mathematics 61: 631-637,  2017. Download from publisher.

[W29] C. Huemer, P. Pérez-Lantero, C. Seara, R. I. Silveira. Matching points with diametral disks. In Abstracts XVII Spanish Meeting on Computational Geometry (EGC), pages 77-80, 2017.

[W28] M. Löffler, J. Luo, R. I. Silveira. Geomasking through Perturbation, or Counting Points in Circles. In Abstracts 33rd European Workshop on Computational Geometry (EuroCG), pages 209-212, 2017.

[W27] D. Duran, V. Sacristán, R. I. Silveira.  Map Construction Algorithms: An Evaluation through Hiking Data. In Proc. 5th ACM SIGSPATIAL International Workshop on Mobile Geographic Information Systems (MobiGIS), pages 74-83 , 2016. Download from publisher (open access)

[W26] F. Kammer, M. Löffler, R. I. Silveira. Space-Efficient Surface Removal. In Abstracts 8th Workshop on Massive Data Algorithms (MASSIVE), 2016.

[W25] C. Huemer, A. Pilz, C. Seara, R. I. Silveira. Production matrices for geometric graphs. In Abstracts Discrete Mathematics Day 2016 (DMD), Electronic Notes in Discrete Mathematics 54:301–306, 2016. Download from publisher.

[W24] J. Gudmundsson, I. Kostitsyna, M. Löffler, V. Sacristán, R. I. Silveira. Beaconless geocast protocols are interesting, even in 1D. In Abstracts 32nd European Workshop on Computational Geometry (EuroCG), pages 227-230, 2016.

[W23] C. Seara, M. Claverol, D. Garijo, M. Korman, R. I. Silveira. Stabbing segments with rectilinear objects. In Abstracts XVI Spanish Meeting on Computational Geometry (EGC), pages 93-96, 2015.

[W22] I. Parada, V. Sacristán, R. I. Silveira. A new meta-module for efficient robot reconfiguration. In Abstracts XVI Spanish Meeting on Computational Geometry (EGC), pages 49-52, 2015.

[W21] R. Fabila-Monroy, A. Garcia, F. Hurtado, R. Jaume, P. Perez-Lantero, M. Saumell, R. I. Silveira, J. Tejel, J. Urrutia. Colored Ray Configurations. In Proc. 26th Canadian Conference on Computational Geometry (CCCG), 2014.

[W20] M. Löffler, M. Saumell, R. I. Silveira. A faster algorithm to compute the visibility map of a 1.5D terrain. In Abstracts 30th European Workshop on Computational Geometry (EuroCG), 2014.

[W19] K. Buchin, I. Kostitsyna, M. Löffler, R. I. Silveira. Region-based approximation of probability distributions (for visibility between imprecise points among obstacles). InAbstracts 30th European Workshop on Computational Geometry (EuroCG), 2014.

[W18] A. García, F. Hurtado, M. Korman, I. Matos, M. Saumell, R. I. Silveira, J. Tejel, C. D. Tóth. Geometric Biplane Graphs I: Maximal Graphs. In Abstracts Mexican Conference on Discrete Mathematics and Computational Geometry, pages 123-134, 2013.

[W17] A. García, F. Hurtado, M. Korman, I. Matos, M. Saumell, R. I. Silveira, J. Tejel, C. D. Tóth. Geometric Biplane Graphs II: Graph Augmentation. In Abstracts Mexican Conference on Discrete Mathematics and Computational Geometry, pages 223-234, 2013.

[W16] C. Seara, M. Claverol, D. Garijo, M. Korman, R. I. Silveira. Stabbing Segments with Rectilinear Objects. In Abstracts Mexican Conference on Discrete Mathematics and Computational Geometry, pages 211-221, 2013.

[W15] M. Hoffmann, V. Kusters, G. Rote, M. Saumell, R. I. Silveira. Convex hull alignment through translation. In Proc. 25th Canadian Conference on Computational Geometry (CCCG), 2013.

[W14] O. Aichholzer, J. Cardinal, T. Hackl, F. Hurtado, M. Korman, A. Pilz, R. I. Silveira, R. Uehara, B. Vogtenhuber, E. Welzl. Cell-Paths in Mono- and Bichromatic Line Arrangements in the Plane. In Proc. 25th Canadian Conference on Computational Geometry (CCCG), 2013.

[W13] S. Bereg, F. Hurtado, M. Kano, M. Korman, D. Lara, C. Seara, R. I. Silveira, J. Urrutia, K. Verbeek. Balanced Partitions of 3-colored Geometric Sets in the Plane. In Abstracts 29th European Workshop on Computational Geometry, pages 165-168, 2013.

[W12] M. Abellanas, M. Claverol, G. Hernández, F. Hurtado, V. Sacristán, M. Saumell, R. I. Silveira. Improving shortest paths in the Delaunay triangulation. In XIV Spanish Meeting on Computational Geometry, pages 117-120, 2011.

[W11] A. Driemel, H. Haverkort, M. Löffler, R. I. Silveira. Flow Computations on Imprecise Terrains. In Abstracts 27th European Workshop on Computational Geometry (EuroCG), pages 119-122, 2011.

[W10] M. Abellanas, M. Claverol, G. Hernández, F. Hurtado, V. Sacristán, M. Saumell, R. I. Silveira. Improving shortest paths in the Delaunay triangulation. In Abstracts 27th European Workshop on Computational Geometry (EuroCG), pages 43-46, 2011.

[W9] C. Gray, F. Kammer, M. Löffler, R. I. Silveira. Removing Local Extrema from Imprecise Terrains . In Abstracts 26th European Workshop on Computational Geometry (EuroCG), pages 181-184, 2010. Download full version.

[W8] C. Gray, M. Löffler, R. I. Silveira. Minimizing Slope Change in Imprecise 1.5D terrains. In Proc. 21st Canadian Conference on Computational Geometry (CCCG), pages 55-58, 2009.

[W7] P. Agarwal, B. Aronov, M. van Kreveld, M. Löffler, R. I. Silveira. Matching Terrains under a Linear Transformation. In Abstracts 25th European Workshop on Computational Geometry (EuroCG), pages 109-112, 2009.

[W6] C. Gray, M. Löffler, R. I. Silveira. Smoothing imprecise 1-dimensional terrains. In Abstracts 24th European Workshop on Computational Geometry (EuroCG), pages 141-144, 2008.

[W5] B. Aronov, M. van Kreveld, M. Löffler, R. I. Silveira. Largest Subsets of Triangles in a Triangulation. In Proc. 19th Canadian Conference on Computational Geometry (CCCG), pages 213-216, 2007.

[W4] R. I. Silveira, M. van Kreveld. Towards a Definition of Higher Order Constrained Delaunay Triangulations. In Proc. 19th Canadian Conference on Computational Geometry (CCCG), pages 161-164, 2007.

[W3] R. I. Silveira, M. van Kreveld. Optimal Higher Order Delaunay Triangulations of Polygons. In Abstracts 23rd European Workshop on Computational Geometry (EuroCG), pages 194-197, 2007.

[W2] M. G. Borgelt, M. van Kreveld, M. Löffler, J. Luo, D. Merrick, R. I. Silveira, M. Vahedi. Planar Bichromatic Minimum Spanning Trees. In Abstracts 23rd European Workshop on Computational Geometry (EuroCG), pages 162-165, 2007.

[W1] M. Abellanas, A. Aiello, G. Hernández, R. I. Silveira Network drawing with geographical constraints on vertices. In Actas XI Encuentros de Geometría Computacional, pages 111-118 , 2005.

Book chapters

[BC1] J. Aguilar, K. Buchin, M. Buchin, E. Hosseini Sereshgi, R.I. Silveira, C. Wenk. Graph Sampling for Map Comparison. Spatial Gems, Volume 2, pages 1-16, 2024. Download from publisher.

Theses

[T2] R. I. Silveira Optimization of polyhedral terrains. PhD thesis. Supervisor: Marc van Kreveld. Utrecht University, 2009.

[T1] A. Aiello, R. I. Silveira Force-directed graph drawing: review of the state-of-the-art and proposal of new algorithms for graphs where vertices represent geographical regions. Master’s thesis (in Spanish). Supervisors: Manuel Abellanas and Gregorio Hernández Peñalver. Universidad de Buenos Aires, 2004.

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