Results 71 to 80 of about 3,684,752 (344)

GOMS: Large-scale ontology management system using graph databases

ETRI Journal, 2022
Large-scale ontology management is one of the main issues when using ontology data practically. Although many approaches have been proposed in relational database management systems (RDBMSs) or object-oriented DBMSs (OODBMSs) to develop large-scale ...
Chun-Hee Lee, Dong-oh Kang
doaj   +1 more source

Graph Transformation in Relational Databases

Electronic Notes in Theoretical Computer Science, 2005
AbstractWe present a novel approach to implement a graph transformation engine based on standard relational database management systems (RDBMSs). The essence of the approach is to create database views for each rules and to handle pattern matching by inner join operations while negative application conditions by left outer join operations. Furthermore,
Varró, Gergely György, Friedl, Katalin, Varró, Dániel   +2 more
openaire   +2 more sources

An introduction to Graph Data Management

, 2017
A graph database is a database where the data structures for the schema and/or instances are modeled as a (labeled)(directed) graph or generalizations of it, and where querying is expressed by graph-oriented operations and type constructors.
A Dries, A Gutiérrez, A Iosup, A Morari, A Poulovassilis, AD Zhu, AO Mendelzon, B Amann, B Elser, C Berge, C Vicknair, C Watters, C Weiss, CS Chang, D Conte, D Dominguez-Sal, D Theodoratos, DC Faye, DW Shipman, EF Codd, FW Tompa, G Malewicz, GM Kuper, H He, HS Kunii, IF Cruz, IF Cruz, J Hidders, J Paredaens, J Peckham, J. Hidders, Jonathan Hayes, K Zeng, L Kowalik, L Zou, M Atre, M Ciglan, M Consens, M Gemis, M Gyssens, M Han, M Levene, M Levene, M Levene, M Mainguenaud, M Schmidt, M Yannakakis, MA Bornea, MA Rodriguez, MA Rodriguez, Marc Andries, MP Consens, MP Consens, N Kiesel, N Roussopoulos, O Erling, P Barceló Baeza, P Buneman, P Yuan, Philippe Cudré-Mauroux, PPS Chen, PT Wood, PT Wood, R Agrawal, R Angles, R Angles, R Brijder, R Ronen, RH Güting, RS Xin, S Abiteboul, S Abiteboul, T Neumann, W Fan, W Kim, Y Guo, Y Low, Y Papakonstantinou, Y Tian, Y Zhao, YA Liu   +80 more
core   +1 more source

A semantic graph database for the interoperability of 3D GIS data

Applied Geomatics, 2020
In the last decades, the use of information management systems in the building data processing led to radical changes to the methods of data production, documentation and archiving. In particular, the possibilities, given by these information systems, to
E. Malinverni, B. Naticchia, Jose Luis Lerma García, A. Gorreja, Joaquin Lopez Uriarte, F. Di Stefano   +5 more
semanticscholar   +1 more source

Graphulo Implementation of Server-Side Sparse Matrix Multiply in the Accumulo Database

, 2015
The Apache Accumulo database excels at distributed storage and indexing and is ideally suited for storing graph data. Many big data analytics compute on graph data and persist their results back to the database.
Fuchs, Adam, Gadepally, Vijay, Hutchison, Dylan, Kepner, Jeremy   +3 more
core   +1 more source

MSP: Multiple Sub-graph Query Processing using Structure-based Graph Partitioning Strategy and Map-Reduce

Journal of King Saud University: Computer and Information Sciences, 2019
In a distributed environment, the volume of graph database increases quickly because graphs emerge from several autonomous sources. Sub-graph query processing is a challenging problem in distributed environment.
Shaik Fathimabi, R.B.V. Subramanyam, D.V.L.N. Somayajulu   +2 more
doaj   +1 more source

Loopedia, a Database for Loop Integrals [PDF]

, 2017
Loopedia is a new database at loopedia.org for information on Feynman integrals, intended to provide both bibliographic information as well as results made available by the community.
Bogner, C., Borowka, S., Hahn, T., Heinrich, G., Jones, S. P., Kerner, M., Michel, M., Panzer, E., Papara, V., von Manteuffel, A.   +9 more
core   +2 more sources

Nesting Depth of Operators in Graph Database Queries: Expressiveness Vs. Evaluation Complexity [PDF]

, 2016
Designing query languages for graph structured data is an active field of research, where expressiveness and efficient algorithms for query evaluation are conflicting goals.
Praveen, M., Srivathsan, B.
core   +2 more sources

From lactation to malignancy: A comparison between healthy and cancerous breast gland at single‐cell resolution reveals new issues for tumorigenesis

FEBS Letters, EarlyView.
Single‐cell RNA sequencing reveals an opposite role of SLPI in basal tumors based on metastatic spread, along with shared activation of specific regulons in cancer cells and mature luminal lactocytes, as well as downregulation of MALAT1 and NEAT1 in the latter.
Pietro Ancona, Carlo M. Bergamini, Carlo Ferrari, Stefano Volinia, Nicoletta Bianchi   +4 more
wiley   +1 more source

Extending Graph-Based Process Discovery for Hierarchical Block Detection and Incomplete Concurrent Relationship Handling

IEEE Access, 2023
The flow of business process activities in an organization can run simply in the form of sequential or complex in the form of choice and parallel. In the discovery process, parallel conditions can be deduced from the concurrent flows between activities ...
Indra Waspada, Riyanarto Sarno, Endang Siti Astuti, Hanung Nindito Prasetyo, Raden Budiraharjo   +4 more
doaj   +1 more source