• Chord

  • Referenced in 207 articles [sw09434]
  • leave the system, and can answer queries even if the system is continuously changing. Results...
  • Pellet

  • Referenced in 92 articles [sw07019]
  • incorporates optimizations for nominals, conjunctive query answering, and incremental reasoning. There’s more detailed information...
  • SPARQL

  • Referenced in 129 articles [sw07429]
  • several interesting and very useful features for querying RDF.par In this paper, we survey ... specifically, on the impossibility of answering some unbounded federated queries and the high computational complexity...
  • Graphs

  • Referenced in 104 articles [sw12277]
  • shortest-path or distance queries, which should be answered as fast as possible ... information systems researchers investigate materialization tradeoffs, query processing on spatial networks, and reachability queries...
  • WolframAlpha

  • Referenced in 47 articles [sw13523]
  • online service that answers factual queries directly by computing the answer from externally sourced ”curated...
  • XSEarch

  • Referenced in 28 articles [sw12180]
  • that satisfy the user’s query. Query answers are ranked using extended information-retrieval techniques...
  • HOLyHammer

  • Referenced in 21 articles [sw11553]
  • available on the server for such query answering include the recent versions of the Flyspeck ... development. An Emacs interface allowing parallel asynchronous queries to the service is also provided...
  • MiniCon

  • Referenced in 19 articles [sw01620]
  • MiniCon: a scalable algorithm for answering queries using views...
  • PITA

  • Referenced in 19 articles [sw06950]
  • PITA system: tabling and answer subsumption for reasoning under uncertainty. Many real world domains require ... complexity of computing the probability of queries to these general PLP programs is very high ... PRISM system reduces the complexity of query answering by restricting the form of programs ... library functions that interface with answer subsumption. We show that, by adapting its transformation...
  • Ontop

  • Referenced in 15 articles [sw22931]
  • Answering SPARQL Queries over Databases under OWL 2 QL Entailment Regime. We present an extension ... data access platform Ontop that supports answering SPARQL queries under the OWL 2 QL direct...
  • SOLAR

  • Referenced in 19 articles [sw00888]
  • Artificial Intelligence such as theorem proving, query answering and nonmonotonic reasoning. SOL is a connection...
  • SuLQ

  • Referenced in 122 articles [sw11355]
  • database entries. In such a database, a query consists of a pair (S, f) where ... database rows to {0, 1}. The true answer is ΣiεS f(di), and a noisy ... released as the response to the query. Results of Dinur, Dwork, and Nissim show that...
  • nSPARQL

  • Referenced in 13 articles [sw11895]
  • data, and we have proposed the nSPARQL query language for RDF, that uses nested regular ... that nSPARQL is expressive enough to answer queries considering the semantics of the RDFS vocabulary...
  • Fg-index

  • Referenced in 9 articles [sw18892]
  • more demanding to efficiently process graph queries. Querying graph databases is costly since it involves ... been proposed to first obtain a candidate answer set by filtering part of the false ... each candidate by checking subgraph isomorphism. Query performance is improved since the number of subgraph ... index returns the exact set of query answers without performing candidate verification. When the query...
  • BATON

  • Referenced in 23 articles [sw09436]
  • both exact queries and range queries can be answered in O(log N) steps...
  • WHIRL

  • Referenced in 11 articles [sw02620]
  • built-in predicate, and answers every query with a list of answer substitutions that ... than naive inference methods, even for short queries, and efficient on typical queries to real...
  • FASTA

  • Referenced in 25 articles [sw09655]
  • clearly related to the query sequence has been answered unambiguously. Unfortunately, the results often will...
  • SATCHMOREBID

  • Referenced in 7 articles [sw06623]
  • enhance the efficiency of the query answering process in disjunctive databases...
  • MYSTIQ

  • Referenced in 11 articles [sw09439]
  • system that uses probabilistic query semantics [3] to find answers in large numbers of data ... poor quality, and therefore difficult to query: the same data item may have different representation ... most trivial queries will return an empty answer...
  • PAGOdA

  • Referenced in 3 articles [sw17539]
  • PAGOdA: pay-as-you-go ontology query answering using a datalog reasoner. Answering conjunctive queries ... core reasoning task for many applications. Query answering is, however, computationally very expensive, which ... development of query answering procedures that sacrifice either expressive power of the ontology language ... completeness of query answers in order to improve scalability. In this paper, we describe...