Publications — Eleni Tzirita Zacharatou

2026

• Nova: Scalable Streaming Join Placement and Parallelization in Resource-Constrained Geo-Distributed Environments
• Practical Spreadsheet Parsing with SheetReader

2025

• Raster Interval Object Approximations for Spatial Intersection Joins
• GPU-Accelerated Stochastic Gradient Descent for Scalable Operator Placement in Geo-Distributed Streaming Systems
• Automating Earth Observation Analytics Pipelines with Agent Raven
• Enhancing In-Memory Spatial Indexing with Learned Search
• Reminiscences on Influential Papers
• GPU Rasterization for Spatial Aggregate Join Queries

2024

• Efficient Placement of Decomposable Aggregation Functions for Stream Processing over Large Geo-Distributed Topologies
• Multi-Backend Zonal Statistics Execution with Raven
• Analysis of Geospatial Data Loading

2023

• A Summary of ICDE 2022 Research Session Panels
• SheetReader: Efficient Specialized Spreadsheet Parsing
• Optimistic Data Parallelism for FPGA-Accelerated Sketching
• Workload Prediction for IoT Data Management Systems

2022

• Spatio-Temporal Graph Convolutional Network for Stochastic Traffic Speed Imputation
• Satellite Image Search in AgoraEO
• In-Place Updates in Tree-Encoded Bitmaps
• Efficient Specialized Spreadsheet Parsing for Data Science

2021

• Monitoring of Stream Processing Engines Beyond the Cloud: an Overview
• Agora-EO: A Unified Ecosystem for Earth Observation
• Towards Resilient Data Management for the Internet of Moving Things
• GeoBlocks: A Query-Cache Accelerated Data Structure for Spatial Aggregation over Polygons
• The Case for Distance-Bounded Spatial Approximations

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