Kemafor Ogan

Hybrid Blockchain Architecture for Cloud Manufacturing-as-a-service (CMaaS) Platforms with Improved Data Storage and Transaction Efficiency

49TH SME NORTH AMERICAN MANUFACTURING RESEARCH CONFERENCE (NAMRC 49, 2021), Vol. 53, pp. 594–605.

Evaluating Generalized Path Queries by Integrating Algebraic Path Problem Solving with Graph Pattern Matching

In Lecture Notes in Computer Science.

Semantic query transformations for increased parallelization in distributed knowledge graph query processing

Proceedings of the International Conference for High Performance Computing, Networking, Storage and Analysis.

Scalable Exploratory Search on Knowledge Graphs Using Apache Spark

2018 IEEE 27th International Conference on Enabling Technologies: Infrastructure for Collaborative Enterprises (WETICE).

A semantics-aware storage framework for scalable processing of knowledge graphs on hadoop

2017 IEEE International Conference on Big Data (Big Data), 193–202.

Type-based Semantic Optimization for Scalable RDF Graph Pattern Matching

Proceedings of the 26th International Conference on World Wide Web.

Rewriting complex SPARQL analytical queries for efficient cloud-based processing

Proceedings 2015 IEEE International Conference on Big Data, 32–37.

Algebraic optimization of RDF graph pattern queries on MapReduce

Large Scale and Big Data: Processing and Management, 183–227.

Enabling a Package Query Paradigm on the Semantic Web: Model and Algorithms

In A. Hameurlain, J. Küng, & R. Wagner (Eds.), Transactions on Large-Scale Data- and Knowledge-Centered Systems XIII (pp. 1–32).

Nesting Strategies for Enabling Nimble MapReduce Dataflows for Large RDF Data

INTERNATIONAL JOURNAL ON SEMANTIC WEB AND INFORMATION SYSTEMS, 10(1), 1–26.

SYRql: A Dataflow Language for Large Scale Processing of RDF Data

In The Semantic Web – ISWC 2014 (pp. 147–163).

A vision for SPARQL multi-query optimization on MapReduce

2013 ieee 29th international conference on data engineering workshops (icdew), 25–26.

Algebraic Optimization for Processing Graph Pattern Queries in the Cloud

IEEE INTERNET COMPUTING, 17(2), 52–61.

Optimizing queries over semantically integrated datasets on mapreduce platforms

2013 IEEE International Conference on Big Data.

Scaling concurrency of personalized semantic search over large RDF data

2013 IEEE International Conference on Big Data.

SkyPackage: From Finding Items to Finding a Skyline of Packages on the Semantic Web

In Semantic Technology (pp. 49–64).

HIP: Information Passing for Optimizing Join-Intensive Data Processing Workloads on Hadoop

In Lecture Notes in Computer Science (pp. 384–391).

Scan-Sharing for Optimizing RDF Graph Pattern Matching on MapReduce

2012 IEEE Fifth International Conference on Cloud Computing.

To nest or not to nest, when and how much

Proceedings of the 4th International Workshop on Semantic Web Information Management - SWIM '12.

An Intermediate Algebra for Optimizing RDF Graph Pattern Matching on MapReduce

In The Semanic Web: Research and Applications (pp. 46–61).

CoSi

Proceedings of the 20th international conference companion on World wide web - WWW '11.

Effectively Interpreting Keyword Queries on RDF Databases with a Rear View

In The Semantic Web – ISWC 2011 (pp. 193–208).

Efficiently Evaluating Skyline Queries on RDF Databases

In The Semanic Web: Research and Applications (pp. 123–138).

From SPARQL to MapReduce: The Journey Using a Nested TripleGroup Algebra

Proc. VLDB Endow., 4(12), 1426–1429. http://www.vldb.org/pvldb/vol4/p1426-kim.pdf

An agglomerative query model for discovery in linked data

Procceedings of the 13th International Workshop on the Web and Databases - WebDB '10.

Disambiguating Keyword Queries on RDF Databases Using "Deep" Segmentation

2010 IEEE Fourth International Conference on Semantic Computing, 236–243.

EI2N’10 & SeDeS’10 - PC Co-chairs Message

EI2N’10 & SeDeS’10 - PC Co-chairs Message. In R. Meersman, T. Dillon, & P. Herrero (Eds.), On the Move to Meaningful Internet Systems: OTM 2010 Workshops (pp. 180–181).

EI2N’10 & SeDeS’10 - PC Co-chairs Message

EI2N’10 & SeDeS’10 - PC Co-chairs Message. In R. Meersman, T. Dillon, & P. Herrero (Eds.), On the Move to Meaningful Internet Systems: OTM 2010 Workshops (pp. 563–564).

RAPID: Enabling scalable ad-hoc analytics on the semantic web

Semantic web - iswc 2009, proceedings, 5823, 715–730.

Graph Summaries for Subgraph Frequency Estimation

In S. Bechhofer, M. Hauswirth, J. Hoffmann, & M. Koubarakis (Eds.), The Semantic Web: Research and Applications. ESWC 2008. (pp. 508–523).

Structure Discovery Queries in Disk-Based Semantic Web Databases

2008 Fourth International Conference on Semantics, Knowledge and Grid, 336–342.

Estimating the cardinality of RDF graph patterns

Proceedings of the 16th international conference on World Wide Web - WWW '07.

SPARQ2L

Proceedings of the 16th international conference on World Wide Web - WWW '07.

SemRank

Proceedings of the 14th international conference on World Wide Web - WWW '05.

Semantic Association Identification and Knowledge Discovery for National Security Applications

Journal of Database Management.

Ρ-Queries:: enabling querying for semantic associations on the semantic web

Proceedings of the twelfth international conference on World Wide Web - WWW '03.

The ρ operator

ACM SIGMOD Record.