LocationSpark: In-memory Distributed Spatial Query Processing and Optimization [PDF]
arXiv, 2019 Due to the ubiquity of spatial data applications and the large amounts of spatial data that these applications generate and process, there is a pressing need for scalable spatial query processing. In this paper, we present new techniques for spatial query processing and optimization in an in-memory and distributed setup to address scalability.
arxiv
An analysis of magic sets and related optimization strategies for logic queries [PDF]
, 1996 Seppo Sippu, Eljas Soisalon-Soininen
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Current and Future Cornea Chip Models for Advancing Ophthalmic Research and Therapeutics
Advanced Biology, EarlyView.This review analyzes cornea chip technology as an innovative solution to corneal blindness and tissue scarcity. The examination encompasses recent developments in biomaterial design and fabrication methods replicating corneal architecture, highlighting applications in drug screening and disease modeling while addressing key challenges in mimicking ...
Minju Kim +3 more
wiley +1 more source
Optimizing Database Performance in Complex Event Processing through Indexing Strategies
DataComplex event processing (CEP) systems have gained significant importance in various domains, such as finance, logistics, and security, where the real-time analysis of event streams is crucial. However, as the volume and complexity of event data continue
Maryam Abbasi +4 more
doaj +1 more source
Roq: Robust Query Optimization Based on a Risk-aware Learned Cost Model [PDF]
arXivQuery optimizers in RDBMSs search for execution plans expected to be optimal for given queries. They use parameter estimates, often inaccurate, and make assumptions that may not hold in practice. Consequently, they may select plans that are suboptimal at runtime, if estimates and assumptions are not valid.
arxiv
Query caching and optimization in distributed mediator systems [PDF]
, 1996 Sibel Adalı +3 more
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Design of data model of underground personnel positioning and management system
Gong-kuang zidonghua, 2013 For problems that reliable information is easily destroyed and query efficiency is low existed in underground personnel positioning and management system, the paper designed a data acquisition model and data flow diagrams of the system, and analyzed ...
LIU Jia, ZHU Hui, HUA Gang
doaj
Towards a Converged Relational-Graph Optimization Framework [PDF]
arXivThe recent ISO SQL:2023 standard adopts SQL/PGQ (Property Graph Queries), facilitating graph-like querying within relational databases. This advancement, however, underscores a significant gap in how to effectively optimize SQL/PGQ queries within relational database systems.
arxiv
A Novel Digitalization Approach for Smart Materials – Ontology‐Based Access to Data and Models
Advanced Engineering Materials, Volume 27, Issue 8, April 2025.In order to access heterogeneous material data and model‐based knowledge, the established ontology‐based data access (OBDA) is extended to include material models. This novel ontology‐based data and model access (OBDMA) enables the computation of new responses beyond stored data.
Jürgen Maas +15 more
wiley +1 more source
Learning From User-Specified Optimizer Hints in Database Systems
Foundations of Computing and Decision SciencesRecently, numerous machine learning (ML) techniques have been applied to address database performance management problems, including cardinality estimation, cost modeling, optimal join order prediction, hint generation, etc.
Zakrzewicz Maciej
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