Results 21 to 30 of about 220,741 (318)
An Approach of Automatic SPARQL Generation for BIM Data Extraction
Applied Sciences, 2020 Generally, building information modelling (BIM) models contain multiple dimensions of building information, including building design data, construction information, and maintenance-related contents, which are related with different engineering ...
Dongming Guo +2 more
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Semantic Protocol and Resource Description Framework Query Language: A Comprehensive Review
Mathematics, 2022 This review presents various perspectives on converting user keywords into a formal query. Without understanding the dataset’s underlying structure, how can a user input a text-based query and then convert this text into semantic protocol and resource ...
Essam H. Houssein +3 more
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Intelligent Search Engine Tool for Querying Database Systems [PDF]
International Journal of Mathematical, Engineering and Management SciencesThe amount of data being produced and used every day is increasing rapidly. Different operations are performed on the data that is stored in database systems to generate meaningful information.
Gagandeep Kaur +3 more
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Coupled intrinsic and extrinsic human language resource-based query expansion [PDF]
Knowledge & Information Systems 2018, 2020 Poor information retrieval performance has often been attributed to the query-document vocabulary mismatch problem which is defined as the difficulty for human users to formulate precise natural language queries that are in line with the vocabulary of the documents deemed relevant to a specific search goal.
arxiv +1 more source
Proceedings of the thirteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems - PODS '94, 1994 We show that a form of divide and conquer recursion on sets, together with the relational algebra, expresses exactly the queries over ordered relational databases which areNC-computable. At a finer level, we relateknested uses of recursion exactly toACk,k?1. We also give corresponding results for complex objects.
Val Breazu-Tannen, Dan Suciu
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Typed query languages for databases containing queries [PDF]
Information Systems, 1998 Abstract This paper introduces and studies the relational meta algebra , a statically typed extension of the relational algebra to allow for meta programming in databases. In this meta algebra one can manipulate database relations involving not only stored data values (as in classical relational databases) but also stored relational algebra ...
NEVEN, Frank +3 more
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Query Lifting: Language-integrated query for heterogeneous nested collections [PDF]
, 2021 Language-integrated query based on comprehension syntax is a powerful technique for safe database programming, and provides a basis for advanced techniques such as query shredding or query flattening that allow efficient programming with complex nested collections.
arxiv +1 more source
Journal of Computer and System Sciences, 1995 AbstractWe investigate the relationship between programming with constraints and database query languages. We show that efficient, declarative database programming can be combined with efficient constraint solving. The key intuition is that the generalization of a ground fact, or tuple, is a conjunction of constraints over a small number of variables ...
KANELLAKIS PARIS +2 more
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The optics of language-integrated query [PDF]
Science of Computer Programming, 2020 Monadic comprehensions reign over the realm of language-integrated query (LINQ), and for good reasons. Indeed, comprehensions are tightly integrated with general purpose programming languages and close enough to common query languages, such as SQL, to guarantee their translation into effective queries.
J. López-González, Juan M. Serrano
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Problematic Unordered Queries in Temporal Moment Measurement by Using Natural Language
IEEE Access, 2023 This study examines the difficulty in measuring temporal moments by using natural language (TMMNL) in the untrimmed video. The purpose of TMMNL is to use natural language query to find a specific moment within a lengthy video.
Hafiza Sadia Nawaz, Junyu Dong
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