Results 41 to 50 of about 455,992 (287)
AMaχoS—Abstract Machine for Xcerpt [PDF]
, 2006 Web query languages promise convenient and efficient access to Web data such as XML, RDF, or Topic Maps. Xcerpt is one such Web query language with strong emphasis on novel high-level constructs for effective and convenient query authoring ...
Bry, François +2 more
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Development and Evaluation of Learning Portfolio Query System Based on LangChain Framework
Engineering ProceedingsWith the increasing popularity of online education platforms, the use frequency of students and teachers has gradually increased. A large volume of data is generated and analyzed daily on these platforms including course information and student learning ...
Nien-Lin Hsueh, Wei-Ting Wang
doaj +1 more source
Apache Calcite: A Foundational Framework for Optimized Query Processing Over Heterogeneous Data Sources [PDF]
, 2018 Apache Calcite is a foundational software framework that provides query processing, optimization, and query language support to many popular open-source data processing systems such as Apache Hive, Apache Storm, Apache Flink, Druid, and MapD.
Begoli, Edmon +4 more
core +2 more sources
Research on Technology of Generating Multi-table SQL Query Statement by Natural Language
Jisuanji kexue yu tansuo, 2020 SQL (structured query language) query generation from natural language is not only one of the most important parts of constructing intelligent database query system, but also one of the difficulties in the individualized operation and maintenance of ...
CAO Jinchao, HUANG Tao, CHEN Gang, WU Xiaofan, CHEN Ke
doaj +1 more source
Knowledge Rich Natural Language Queries over Structured Biological Databases
, 2017 Increasingly, keyword, natural language and NoSQL queries are being used for information retrieval from traditional as well as non-traditional databases such as web, document, image, GIS, legal, and health databases. While their popularity are undeniable
Chu W. W. +11 more
core +1 more source
Solving equations in the relational algebra [PDF]
, 2003 Enumerating all solutions of a relational algebra equation is a natural and powerful operation which, when added as a query language primitive to the nested relational algebra, yields a query language for nested relational databases, equivalent to the ...
Biskup, Joachim +3 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Purpose Cognitive and psychological difficulties could negatively interfere with treatment adherence and quality of life before and after hematopoietic stem cell transplant (HSCT). Methods to mitigate these changes may have positive effects on treatment success.
Kristen L. Votruba +11 more
wiley +1 more source
DCU-TCD@LogCLEF 2010: re-ranking document collections and query performance estimation [PDF]
, 2010 This paper describes the collaborative participation of Dublin City University and Trinity College Dublin in LogCLEF 2010. Two sets of experiments were conducted. First, different aspects of the TEL query logs were analysed after extracting user sessions
Ghorab, M. Rami +4 more
core +1 more source
Constraint Databases, Queries, and Query Languages [PDF]
, 2000 We formally define the constraint database model, the concept of query in this model, and the basic constraint query languages provided by the relational calculus, the relational algebra, and DATALOG. We show how a computationally complete constraint query language can be obtained by augmenting the constraint relational calculus with basic programming ...
openaire +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Childhood cancer survivors (CCS) have an increased risk of long‐term health complications, including treatment‐related hearing loss. Although early detection is important, many adult survivors do not attend hearing screenings in clinical centers because visits can be logistically or emotionally burdensome.
Philippa Jörger +9 more
wiley +1 more source