Results 21 to 30 of about 5,206,986 (370)
Relational Playground: Teaching the Duality of Relational Algebra and SQL [PDF]
, 2023 Students in introductory data management courses are often taught how to write queries in SQL. This is a useful and practical skill, but it gives limited insight into how queries are processed by relational database engines. In contrast, relational algebra is a commonly used internal representation of queries by database engines, but can be challenging
arxiv +1 more source
BioData Mining, 2022 Background Knowledge graphs support biomedical research efforts by providing contextual information for biomedical entities, constructing networks, and supporting the interpretation of high-throughput analyses.
David N. Nicholson +2 more
doaj +1 more source
Prognosing Human Activity Using Actions Forecast and Structured Database
IEEE Access, 2020 The goal of this work is to forecast human activities that may require robot assistance. Each activity consists of consecutive actions. Each action is bounded by initial and final state and is created by the motion trajectory.
Vibekananda Dutta, Teresa Zielinska
doaj +1 more source
Fatigue database of complex metallic alloys
Scientific Data, 2023 The past few decades have witnessed rapid progresses in the research and development of complex metallic alloys such as metallic glasses and multi-principal element alloys, which offer new solutions to tackle engineering problems of materials such as the
Zian Zhang, Haoxuan Tang, Zhiping Xu
doaj +1 more source
BioCreative V CDR task corpus: a resource for chemical disease relation extraction
Database J. Biol. Databases Curation, 2016 Community-run, formal evaluations and manually annotated text corpora are critically important for advancing biomedical text-mining research. Recently in BioCreative V, a new challenge was organized for the tasks of disease named entity recognition (DNER)
Jiao Li +9 more
semanticscholar +1 more source
Data, 2022 This paper presents a database that includes information on national recipes and their ingredients for 171 countries, measures for food taste similarities between all 171 countries as well as bilateral migration and agro-food trade data for 5 years.
Anne C. Wunderlich, Andreas Kohler
doaj +1 more source
Database Slicing on Relational Databases
Acta Cybernetica, 2014 Many software systems today use databases to permanently store their data. Testing, bug finding and migration are complex problems in the case of databases that contain many records. Here, our method can speed up these processes if we can select a smaller piece of the database (called a slice) that contains all of the records belonging to the slicing ...
David Tengeri, Ferenc Havasi
openaire +2 more sources
Comparison of NoSQL Database and Traditional Database-An emphatic analysis
JOIV: International Journal on Informatics Visualization, 2018 A Huge amount of data is manipulated by using the web application, Facebook, Twitter, social sites etc. Most of the data are unstructured data. It is not desirable for storing, performing and analyzing data in the relational database for huge data.
M. Sandeep Kumar, Prabhu .J
doaj +1 more source
ESTIMATION OF GEOGRAPHICAL DATABASES CAPTURE SCALE BASED ON INTER-VERTICES DISTANCES EXPLORATION [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015 This article presents a method to estimate the capture scale of a geographical database based on the characterization of its level of detail. This contribution fits in a larger research, dealing with the development of a general model to estimate the ...
J.-F. Girres
doaj +1 more source
End-to-End Database Software Security
Software, 2023 End-to-end security is essential for relational database software. Most database management software provide data protection at the server side and in transit, but data are no longer protected once they arrive at the client software.
Denis Ulybyshev +3 more
doaj +1 more source