Matches in SemOpenAlex for { <https://semopenalex.org/work/W2988898811> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W2988898811 abstract "Question answering over knowledge graphs (KGQA) has evolved from simple single-fact questions to complex questions that require graph traversal and aggregation. We propose a novel approach for complex KGQA that uses unsupervised message passing, which propagates confidence scores obtained by parsing an input question and matching terms in the knowledge graph to a set of possible answers. First, we identify entity, relationship, and class names mentioned in a natural language question, and map these to their counterparts in the graph. Then, the confidence scores of these mappings propagate through the graph structure to locate the answer entities. Finally, these are aggregated depending on the identified question type. This approach can be efficiently implemented as a series of sparse matrix multiplications mimicking joins over small local subgraphs. Our evaluation results show that the proposed approach outperforms the state of the art on the LC-QuAD benchmark. Moreover, we show that the performance of the approach depends only on the quality of the question interpretation results, i.e., given a correct relevance score distribution, our approach always produces a correct answer ranking. Our error analysis reveals correct answers missing from the benchmark dataset and inconsistencies in the DBpedia knowledge graph. Finally, we provide a comprehensive evaluation of the proposed approach accompanied with an ablation study and an error analysis, which showcase the pitfalls for each of the question answering components in more detail." @default.
- W2988898811 created "2019-11-22" @default.
- W2988898811 creator A5020259378 @default.
- W2988898811 creator A5024631418 @default.
- W2988898811 creator A5027138711 @default.
- W2988898811 creator A5041317183 @default.
- W2988898811 creator A5076886839 @default.
- W2988898811 date "2019-11-03" @default.
- W2988898811 modified "2023-10-06" @default.
- W2988898811 title "Message Passing for Complex Question Answering over Knowledge Graphs" @default.
- W2988898811 cites W1509946529 @default.
- W2988898811 cites W1550560012 @default.
- W2988898811 cites W1552847225 @default.
- W2988898811 cites W1972336145 @default.
- W2988898811 cites W2011992920 @default.
- W2988898811 cites W2013667086 @default.
- W2988898811 cites W2080133951 @default.
- W2988898811 cites W2109956628 @default.
- W2988898811 cites W2261525379 @default.
- W2988898811 cites W2493916176 @default.
- W2988898811 cites W2604314403 @default.
- W2988898811 cites W2763039547 @default.
- W2988898811 cites W2799236386 @default.
- W2988898811 cites W2807418422 @default.
- W2988898811 cites W2889033015 @default.
- W2988898811 cites W2891146220 @default.
- W2988898811 cites W2963102202 @default.
- W2988898811 cites W80422862 @default.
- W2988898811 cites W94795092 @default.
- W2988898811 doi "https://doi.org/10.1145/3357384.3358026" @default.
- W2988898811 hasPublicationYear "2019" @default.
- W2988898811 type Work @default.
- W2988898811 sameAs 2988898811 @default.
- W2988898811 citedByCount "41" @default.
- W2988898811 countsByYear W29888988112019 @default.
- W2988898811 countsByYear W29888988112020 @default.
- W2988898811 countsByYear W29888988112021 @default.
- W2988898811 countsByYear W29888988112022 @default.
- W2988898811 countsByYear W29888988112023 @default.
- W2988898811 crossrefType "proceedings-article" @default.
- W2988898811 hasAuthorship W2988898811A5020259378 @default.
- W2988898811 hasAuthorship W2988898811A5024631418 @default.
- W2988898811 hasAuthorship W2988898811A5027138711 @default.
- W2988898811 hasAuthorship W2988898811A5041317183 @default.
- W2988898811 hasAuthorship W2988898811A5076886839 @default.
- W2988898811 hasBestOaLocation W29888988112 @default.
- W2988898811 hasConcept C132525143 @default.
- W2988898811 hasConcept C154945302 @default.
- W2988898811 hasConcept C199360897 @default.
- W2988898811 hasConcept C2778692605 @default.
- W2988898811 hasConcept C41008148 @default.
- W2988898811 hasConcept C44291984 @default.
- W2988898811 hasConcept C80444323 @default.
- W2988898811 hasConceptScore W2988898811C132525143 @default.
- W2988898811 hasConceptScore W2988898811C154945302 @default.
- W2988898811 hasConceptScore W2988898811C199360897 @default.
- W2988898811 hasConceptScore W2988898811C2778692605 @default.
- W2988898811 hasConceptScore W2988898811C41008148 @default.
- W2988898811 hasConceptScore W2988898811C44291984 @default.
- W2988898811 hasConceptScore W2988898811C80444323 @default.
- W2988898811 hasLocation W29888988111 @default.
- W2988898811 hasLocation W29888988112 @default.
- W2988898811 hasLocation W29888988113 @default.
- W2988898811 hasOpenAccess W2988898811 @default.
- W2988898811 hasPrimaryLocation W29888988111 @default.
- W2988898811 hasRelatedWork W2073547112 @default.
- W2988898811 hasRelatedWork W2158013543 @default.
- W2988898811 hasRelatedWork W2351286801 @default.
- W2988898811 hasRelatedWork W2361152157 @default.
- W2988898811 hasRelatedWork W2363930051 @default.
- W2988898811 hasRelatedWork W2385485542 @default.
- W2988898811 hasRelatedWork W2462670247 @default.
- W2988898811 hasRelatedWork W2805599431 @default.
- W2988898811 hasRelatedWork W4230850137 @default.
- W2988898811 hasRelatedWork W575918167 @default.
- W2988898811 isParatext "false" @default.
- W2988898811 isRetracted "false" @default.
- W2988898811 magId "2988898811" @default.
- W2988898811 workType "article" @default.