NAGA: harvesting, searching and ranking knowledge
Proceedings of the 2008 ACM SIGMOD international conference on Management of data
YAGO: A Large Ontology from Wikipedia and WordNet
Web Semantics: Science, Services and Agents on the World Wide Web
Semantically Enhanced Entity Ranking
WISE '08 Proceedings of the 9th international conference on Web Information Systems Engineering
Ranking People Based on Metadata Analysis of Search Results
WISE '08 Proceedings of the 2008 international workshops on Web Information Systems Engineering
Harvesting, searching, and ranking knowledge on the web: invited talk
Proceedings of the Second ACM International Conference on Web Search and Data Mining
Database and information-retrieval methods for knowledge discovery
Communications of the ACM - A Direct Path to Dependable Software
Flexible and efficient querying and ranking on hyperlinked data sources
Proceedings of the 12th International Conference on Extending Database Technology: Advances in Database Technology
The YAGO-NAGA approach to knowledge discovery
ACM SIGMOD Record
Language-model-based ranking in entity-relation graphs
Proceedings of the First International Workshop on Keyword Search on Structured Data
Semplore: A scalable IR approach to search the Web of Data
Web Semantics: Science, Services and Agents on the World Wide Web
Language-model-based ranking for queries on RDF-graphs
Proceedings of the 18th ACM conference on Information and knowledge management
Identifying interesting assertions from the web
Proceedings of the 18th ACM conference on Information and knowledge management
ANGIE: active knowledge for interactive exploration
Proceedings of the VLDB Endowment
RankIE: document retrieval on ranked entity graphs
Proceedings of the VLDB Endowment
Answering web questions using structured data: dream or reality?
Proceedings of the VLDB Endowment
Graph-Based Ontology Construction from Heterogenous Evidences
ISWC '09 Proceedings of the 8th International Semantic Web Conference
Data-oriented content query system: searching for data into text on the web
Proceedings of the third ACM international conference on Web search and data mining
Graph-based concept identification and disambiguation for enterprise search
Proceedings of the 19th international conference on World wide web
From information to knowledge: harvesting entities and relationships from web sources
Proceedings of the twenty-ninth ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems
Active knowledge: dynamically enriching RDF knowledge bases by web services
Proceedings of the 2010 ACM SIGMOD International Conference on Management of data
Expressive and flexible access to web-extracted data: a keyword-based structured query language
Proceedings of the 2010 ACM SIGMOD International Conference on Management of data
Querying Wikipedia documents and relationships
Procceedings of the 13th International Workshop on the Web and Databases
Entity ranking using Wikipedia as a pivot
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
Semantic tags generation and retrieval for online advertising
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
Processing SPARQL queries with regular expressions in RDF databases
DTMBIO '10 Proceedings of the ACM fourth international workshop on Data and text mining in biomedical informatics
SQR: a semantic query rating scheme
ESAIR '10 Proceedings of the third workshop on Exploiting semantic annotations in information retrieval
Entity-relationship queries over wikipedia
SMUC '10 Proceedings of the 2nd international workshop on Search and mining user-generated contents
Ranking the linked data: the case of DBpedia
ICWE'10 Proceedings of the 10th international conference on Web engineering
Mining and explaining relationships in wikipedia
DEXA'10 Proceedings of the 21st international conference on Database and expert systems applications: Part II
Bayesian knowledge corroboration with logical rules and user feedback
ECML PKDD'10 Proceedings of the 2010 European conference on Machine learning and knowledge discovery in databases: Part II
ROXXI: Reviving witness dOcuments to eXplore eXtracted Information
Proceedings of the VLDB Endowment
Constructing concept relation network and its application to personalized web search
Proceedings of the 14th International Conference on Extending Database Technology
Einstein: physicist or vegetarian? summarizing semantic type graphs for knowledge discovery
Proceedings of the 20th international conference companion on World wide web
Sharing work in keyword search over databases
Proceedings of the 2011 ACM SIGMOD International Conference on Management of data
Enishi: searching knowledge about relations by complementarily utilizing wikipedia and the web
WISE'10 Proceedings of the 11th international conference on Web information systems engineering
Top-K possible shortest path query over a large uncertain graph
WISE'11 Proceedings of the 12th international conference on Web information system engineering
Automated feature generation from structured knowledge
Proceedings of the 20th ACM international conference on Information and knowledge management
Learning to rank results in relational keyword search
Proceedings of the 20th ACM international conference on Information and knowledge management
Ranking objects by following paths in entity-relationship graphs
Proceedings of the 4th workshop on Workshop for Ph.D. students in information & knowledge management
Mapping queries to the Linking Open Data cloud: A case study using DBpedia
Web Semantics: Science, Services and Agents on the World Wide Web
Semantic Web search based on ontological conjunctive queries
Web Semantics: Science, Services and Agents on the World Wide Web
Lightweight integration of IR and DB for scalable hybrid search with integrated ranking support
Web Semantics: Science, Services and Agents on the World Wide Web
Multilingual schema matching for Wikipedia infoboxes
Proceedings of the VLDB Endowment
Analysis of implicit relations on wikipedia: measuring strength through mining elucidatory objects
DASFAA'10 Proceedings of the 15th international conference on Database Systems for Advanced Applications - Volume Part I
Chapter 3: search for knowledge
Search Computing
Towards expressive exploratory search over entity-relationship data
Proceedings of the 21st international conference companion on World Wide Web
Query languages for graph databases
ACM SIGMOD Record
A schema-driven approach for knowledge-oriented retrieval and query formulation
KEYS '12 Proceedings of the Third International Workshop on Keyword Search on Structured Data
Malleability-Aware skyline computation on linked open data
DASFAA'12 Proceedings of the 17th international conference on Database Systems for Advanced Applications - Volume Part II
Efficient subgraph matching on billion node graphs
Proceedings of the VLDB Endowment
Entity-Relationship Queries over Wikipedia
ACM Transactions on Intelligent Systems and Technology (TIST)
Pay-as-you-go maintenance of precomputed nearest neighbors in large graphs
Proceedings of the 21st ACM international conference on Information and knowledge management
Ontology-based semantic search on the Web and its combination with the power of inductive reasoning
Annals of Mathematics and Artificial Intelligence
Evaluating ontology-based user profiles
AMT'12 Proceedings of the 8th international conference on Active Media Technology
Personal ontologies: Generation of user profiles based on the YAGO ontology
Information Processing and Management: an International Journal
Towards query model integration: topology-aware, IR-inspired metrics for declarative graph querying
Proceedings of the Joint EDBT/ICDT 2013 Workshops
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The Web has the potential to become the world's largest knowledge base. In order to unleash this potential, the wealth of information available on the Web needs to be extracted and organized. There is a need for new querying techniques that are simple and yet more expressive than those provided by standard keyword-based search engines. Searching for knowledge rather than Web pages needs to consider inherent semantic structures like entities (person, organization, etc.) and relationships (isA, locatedIn, etc.). In this paper, we propose NAGA, a new semantic search engine. NAGA builds on a knowledge base, which is organized as a graph with typed edges, and consists of millions of entities and relationships extracted from Web-based corpora. A graph-based query language enables the formulation of queries with additional semantic information. We introduce a novel scoring model, based on the principles of generative language models, which formalizes several notions such as confidence, informativeness and compactness and uses them to rank query results. We demonstrate NAGA's superior result quality over state-of-the-art search engines and question answering systems.