• SPARQL

  • Referenced in 137 articles [sw07429]
  • several interesting and very useful features for querying RDF.par In this paper, we survey ... classical theoretical problems such as expressiveness and complexity, and discuss algorithmic properties. Moreover, we present ... answering some unbounded federated queries and the high computational complexity of the evaluation problem...
  • PicHunter

  • Referenced in 53 articles [sw14896]
  • incorporated into systems which support complex queries, including most previously proposed systems. However, even with...
  • VisualSEEk

  • Referenced in 89 articles [sw13846]
  • arrangements of similar regions. Prior to the queries, the system automatically extracts and indexes salient ... locations, a wide variety of complex joint color/spatial queries may be computed...
  • PITA

  • Referenced in 22 articles [sw06950]
  • between these languages. The complexity of computing the probability of queries to these general ... alternative, the PRISM system reduces the complexity of query answering by restricting the form ... competitive with PRISM for complex queries to Hidden Markov Model examples, and sometimes much faster...
  • Graphs

  • Referenced in 107 articles [sw12277]
  • tradeoff between the index size and the query time. We survey methods for general graphs ... practical significance such as planar graphs and complex networks...
  • INQUERY

  • Referenced in 21 articles [sw36122]
  • provides support for sophisticated indexing and complex query formulation. INQUERY has been used successfully with...
  • QNet

  • Referenced in 11 articles [sw13845]
  • network data. We show that QNet searches queries with up to 9 proteins in seconds ... scale cross-species comparison of protein complexes, by querying known yeast complexes against...
  • Polaris

  • Referenced in 7 articles [sw38945]
  • generate a precise set of relational queries from the visual specifications. The visual specifications ... analyst visual feedback as they construct complex queries and visualizations...
  • ProbView

  • Referenced in 27 articles [sw09438]
  • modeling and manipulating uncertain information. Probabilities of complex events can be computed from those ... strategies can be computed in polynomial time, queries in the positive fragment of the probabilistic ... relational algebra have essentially the same data complexity as classical relational algebra. (3) We establish ... complexity results with experiments and show that rewriting certain types of queries to other equivalent...
  • DEDALE

  • Referenced in 10 articles [sw17368]
  • DEDALE system for complex spatial queries. This paper presents DEDALE, a spatial database system intended...
  • SEQUEL

  • Referenced in 6 articles [sw28677]
  • data manipulation facility for a structured English query language (SEQUEL) which can be used ... manner in order to form more complex queries. SEQUEL is intended as a data base...
  • Marlin

  • Referenced in 6 articles [sw41698]
  • achieves linear proof length and constant query complexity...
  • MYSTIQ

  • Referenced in 12 articles [sw09439]
  • sources; the schema alignments needed by a query system are imperfect and noisy; different sources ... some-times want to ask complex, structurally rich queries, using query constructs typically found...
  • Squid

  • Referenced in 5 articles [sw08817]
  • while preserving lexical locality. Squid supports complex queries containing partial keywords, wildcards and ranges. Analytical...
  • SpaceTwist

  • Referenced in 7 articles [sw41706]
  • solutions that use spatial cloaking employ complex server query processing techniques and entail the transmission...
  • SBQL

  • Referenced in 3 articles [sw03486]
  • retrieval of cached queries, decomposition of complex queries into smaller ones and query normalization enabling...
  • HOLyHammer

  • Referenced in 26 articles [sw11553]
  • such query answering include the recent versions of the Flyspeck, Multivariate Analysis and Complex Analysis ... development. An Emacs interface allowing parallel asynchronous queries to the service is also provided...
  • nSPARQL

  • Referenced in 13 articles [sw11895]
  • data, and we have proposed the nSPARQL query language for RDF, that uses nested regular ... complexity of evaluation. Regarding expressiveness, we show that nSPARQL is expressive enough to answer queries ... nested regular expressions and SPARQL operators. Regarding complexity of evaluation, we prove that the evaluation...
  • OceanBase

  • Referenced in 2 articles [sw20120]
  • massive data but the performance for complex queries remains to be improved. The network transmission...
  • Volcano

  • Referenced in 22 articles [sw30956]
  • items, e.g., predicates, are imported into the query processing operators using support functions. The semantics ... prescribed; any data type including complex objects and any operation can be realized. Thus, Volcano ... choose-plan meta-operator supports dynamic query evaluation plans that allow delaying selected optimization decisions...