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QBD*: a graphical query language with recursion
1990
IEEE Transactions on Software Engineering
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The conceptual model is the Entity-Relationship Model; the query language, whose expressive power allows recursive queries, supports visual interaction. ...
The system, called Query by Diagram * (QBD * ), makes use of a conceptual data model, a query language on this model and a graphical user interface. ...
Conclusions In this paper we have presented QBD * , a graphical query language that allows for expressing both non-recursive and recursive queries. ...
doi:10.1109/32.60295
fatcat:3sbzelblrfcxjbbkimvnxskkei
Low complexity aggregation in graphlog and Datalog
[chapter]
1990
Lecture Notes in Computer Science
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We show how Datalog can be extended to compute a large class of queries with aggregates without incurring the large expense of a language with general set manipulation capabilities. ...
In the case where no rules are recursive, the language is exactly as expressive as Klug's rst order language with aggregates. ...
power and complexity of languages that support aggregation over recursion. ...
doi:10.1007/3-540-53507-1_90
fatcat:2g6qdn6z6zdvzaenawkarx5rtq
Efficient optimization and processing for distributed monitoring and control applications
2012
Proceedings of the on SIGMOD/PODS 2012 PhD Symposium - PhD '12
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In particular, we make the following contributions: 1) supporting the maintenance of recursive queries over distributed data streams, 2) enabling full-fledged cost-based incremental query re-optimization ...
adaptive query processing systems. ...
a graphical interface. ...
doi:10.1145/2213598.2213615
dblp:conf/sigmod/Liu12
fatcat:6hzc4ilrcbap5b75oc6uej74he
Low-complexity aggregation in GraphLog and Datalog
1993
Theoretical Computer Science
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We also study the expressive power and complexity of languages that support aggregation over recursion. ...
Multisets are supported
by commercial
query languages,
like SQL. ...
doi:10.1016/0304-3975(93)90221-e
fatcat:27x3ed2f7baktmumyfcvxuwntq
A direct manipulation interface for boolean information retrieval via natural language query
1990
Proceedings of the 13th annual international ACM SIGIR conference on Research and development in information retrieval - SIGIR '90
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graphical representation of a user's natura3 language query which not only exposes heuristic query nansformations performed by the system, but also supports query reformulation by the user via direct ...
Intended to overcome the difficulties of manipulating explicit Boolean queries as well as the "black box" drawbacks of so-called natural language query systems, the interface presents a two-dimensional ...
graphical representation of a user's natura3 language query which not only exposes heuristic query nansformations performed by the system, but also supports query reformulation by the user via direct ...
doi:10.1145/96749.98015
dblp:conf/sigir/AnickBFHAR90
fatcat:lijtj7b4bzazzklihrtkf3ekim
The principles and practice of probabilistic programming
2013
Proceedings of the 40th annual ACM SIGPLAN-SIGACT symposium on Principles of programming languages - POPL '13
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We will focus on the probabilistic programming language Church [6] for simplicity, but the design of probabilistic languages to best support complex model representation and efficient inference is an active ...
, graphical models are a useful but incomplete approach to probabilistic modeling. ...
This work was supported by ONR grant N00014-09-0124. ...
doi:10.1145/2429069.2429117
dblp:conf/popl/Goodman13
fatcat:fv5rsbfz5rfp7fytwwt75xv25m
The principles and practice of probabilistic programming
2013
SIGPLAN notices
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We will focus on the probabilistic programming language Church [6] for simplicity, but the design of probabilistic languages to best support complex model representation and efficient inference is an active ...
, graphical models are a useful but incomplete approach to probabilistic modeling. ...
This work was supported by ONR grant N00014-09-0124. ...
doi:10.1145/2480359.2429117
fatcat:ez3zc3r2mrcpvjo7q4vqo27lhe
vSPARQL: A view definition language for the semantic web
2011
Journal of Biomedical Informatics
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We evaluate the expressivity of our approach by defining views for practical use cases and comparing our view definition language to existing query languages. ...
We present a general solution for RDF information set reuse inspired by database views. ...
The language supports subqueries and recursive subqueries for gathering data from a database; additionally, SQL supports database views to restrict the set of data accessible to queries. ...
doi:10.1016/j.jbi.2010.08.008
pmid:20800106
pmcid:PMC3042057
fatcat:7anb7nvu25fr7ki5acp6pb2vii
XQBE: A Graphical Interface for XQuery Engines
[chapter]
2004
Lecture Notes in Computer Science
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Something similar happened with QBE, initially proposed as an alternative to SQL, that has then become popular as the user-friendly query language supported by MS Access. ...
XQuery is increasingly popular among computer scientists with a SQL background, since queries in XQuery and SQL require comparable skills to be formulated. ...
Conclusions We have shown a query in XQBE (in Figure 3 ) equivalent to the W3C query of Figure 2 , and described how our interface generates an equivalent XQuery version of that query. ...
doi:10.1007/978-3-540-24741-8_55
fatcat:ndnpp5y4azf2dhe43t2jwievti
Query by diagram: A visual environment for querying databases
1993
Software, Practice & Experience
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The query language underlying the system allows the formulation of recursive queries; moreover, user interaction in both managing diagrams and expressing queries is simplified by the presence of a fully ...
visual environment and a rich set of interaction strategies. key words: Entity relationship model Visual query language User interfaces ...
QBD* has been compared in Reference 12 with G + , 6 the only other query language allowing recursive queries to be expressed graphically. ...
doi:10.1002/spe.4380230307
fatcat:c624p6d7v5e6tbbxqenow4ofp4
ODB-Tools: A description logics based tool for schema validation and semantic query optimization in object oriented databases
[chapter]
1997
Lecture Notes in Computer Science
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ODB-Tools is a ODMG 93 1] compliant tool, both for the schema de nition (ODL language) and for the query language (OQL); The tool is available in internet at http://sparc20.dsi.unimo.it and supports an ...
on-line graphical interface developed in Java language. 1 The approach Let us brie y explain the main ingredients of our approach 2, 3]. ...
ODB-Tools is a ODMG 93 1] compliant tool, both for the schema de nition (ODL language) and for the query language (OQL); The tool is available in internet at http://sparc20.dsi.unimo.it and supports an ...
doi:10.1007/3-540-63576-9_130
fatcat:brelyhs7ffdljgww6ob6ntf33i
TIN: an interactive image navigator providing ubiquitous access to distributed geo-spatial data
2004
International Conference on Information Technology: Coding and Computing, 2004. Proceedings. ITCC 2004.
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The TIN prototype was implemented using an interactive movie authoring environment (Flash MX) and XML (eXtensible Markup Language) to communicate queries and retrieve data and metadata from the server. ...
In this paper we describe the design of the TerraScope Image Navigator (TIN), the graphical user interface module of the TerraScope system. ...
Acknowledgements TerraScope was born from a cooperative effort between members of the ADM Group and members of the Earth Science community at UPRM. ...
doi:10.1109/itcc.2004.1286476
dblp:conf/itcc/VelezCM04
fatcat:wnkzx6dnlnbqriucbcvc3soo4q
Query evaluation with soft-key constraints
2008
Proceedings of the twenty-seventh ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems - PODS '08
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The data are stored in distributed information systems, using a variety of data models, and are processed by increasingly more complex tools that analyze and visualize them. ...
We present in this paper our framework for integrating biomedical research data and tools into a unique Web front end. Our framework is applied to the University of Washington's Human Brain Project. ...
-0428168, and a gift from Microsoft. ...
doi:10.1145/1376916.1376934
dblp:conf/pods/JhaRS08
fatcat:bocqfcdo75hnfarmbnok4shm7m
A Framework for XML-Based Integration of Data, Visualization and Analysis in a Biomedical Domain
[chapter]
2005
Lecture Notes in Computer Science
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The data are stored in distributed information systems, using a variety of data models, and are processed by increasingly more complex tools that analyze and visualize them. ...
We present in this paper our framework for integrating biomedical research data and tools into a unique Web front end. Our framework is applied to the University of Washington's Human Brain Project. ...
-0428168, and a gift from Microsoft. ...
doi:10.1007/11547273_15
fatcat:6wwqfp7q3zge7daoj22vxjujfm
Advanced model transformation language constructs in the VIATRA2 framework
2006
Proceedings of the 2006 ACM symposium on Applied computing - SAC '06
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This language offers advanced constructs for querying (e.g. recursive graph patterns) and manipulating models (e.g. generic and meta transformation rules) in unidirectional model transformations frequently ...
We present the model transformation language of the VIA-TRA2 framework, which provides a rule and pattern-based transformation language for manipulating graph models by combining graph transformation and ...
Man1 Proposals shall define a query language. Viatra2 uses recursive graph patterns as its query language, which provides the same expressive power as using OCL as a query languages in QVT. ...
doi:10.1145/1141277.1141575
dblp:conf/sac/BaloghV06
fatcat:p6caa5ehbjfkpl2b3pl63kxfzm
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