"Part" Relations for Object-Oriented Databases. - Michael Halper; James Geller; Yehoshua Perl (ER, 1992)

A Graphical Schema Representation for Object-Oriented Databases. - Michael Halper; James Geller; Yehoshua Perl; Erich J. Neuhold (IDS, 1992)

Value Propagation in Object-Oriented Database Part Hierarchies. - Michael Halper; James Geller; Yehoshua Perl (CIKM, 1993)

Integrating a Part Relationship Into an Open OODB System Using Metaclasses. - Michael Halper; James Geller; Yehoshua Perl; Wolfgang Klas (CIKM, 1994)

The OODB Ownership Relationship. - Oscar Yang; Michael Halper; James Geller; Yehoshua Perl (OOIS, 1994)

Modeling a Vocabulary in an Object-Oriented Database. - Li-min Liu; Michael Halper; Huanying Gu; James Geller; Yehoshua Perl (CIKM, 1996)

Partitioning a vocabulary's IS-A hierarchy into trees. - Huanying Gu; Yehoshua Perl; James Geller; Michael Halper; James J. Cimino; Mansnimar Singh (AMIA, 1997)

Converting an integrated hospital formulary into an object-oriented database representation. - Huanying Gu; Li-min Liu; Michael Halper; James Geller; Yehoshua Perl (AMIA, 1998)

An OODB Part-Whole Model: Semantics, Notation and Implementation. - Michael Halper; James Geller; Yehoshua Perl (Data Knowl. Eng., 1998)

Modeling the UMLS using an OODB. - Huanying Gu; Yehoshua Perl; James Geller; Michael Halper; Li-min Liu; James J. Cimino (AMIA, 1999)

Using a Similarity Measurement to Partition a Vocabulary of Medical Concepts. - Huanying Gu; James Geller; Li-min Liu; Michael Halper (DEXA, 1999)

Incorporating Semantic Relationships into an Object-Oriented Database System. - Li-min Liu; Michael Halper (HICSS, 1999)

A methodology for partitioning a vocabulary hierarchy into trees. - Huanying Gu; Yehoshua Perl; James Geller; Michael Halper; Mansnimar Singh (Artif. Intell. Medicine, 1999)

Controlled Vocabularies in OODBs: Modeling Issues and Implementation. - Li-min Liu; Michael Halper; James Geller; Yehoshua Perl (Distributed Parallel Databases, 1999)

Model Formulation: Benefits of an Object-oriented Database Representation for Controlled Medical Terminologies. - Huanying Gu; Michael Halper; James Geller; Yehoshua Perl (J. Am. Medical Informatics Assoc., 1999)

Partitioning the Semantic Network of the UMLS. - Zong Chen; Michael Halper; James Geller; Yehoshua Perl (AMIA, 2000)

How to Partition a Complex Schema of a Medical Terminology. - Huanying Helen Gu; Yehoshua Perl; Michael Halper; James Geller; Feng-shen Kuo; James J. Cimino (AMIA, 2000)

Research Paper: Representing the UMLS as an Object-oriented Database: Modeling Issues and Advantages. - Huanying Gu; Yehoshua Perl; James Geller; Michael Halper; Li-min Liu; James J. Cimino (J. Am. Medical Informatics Assoc., 2000)

A metaschema of the UMLS based on a partition of its semantic network. - Michael Halper; Zong Chen; James Geller; Yehoshua Perl (AMIA, 2001)

The Importance of Ownership for E-Commerce. - James Geller; Yehoshua Perl; Li-min Liu; C. Rush; Michael Halper (DS-9, 2001)

Auditing the UMLS for redundant classifications. - Yi Peng; Michael Halper; Yehoshua Perl; James Geller (AMIA, 2002)

Enriching the structure of the UMLS semantic network. - Li Zhang 048; Yehoshua Perl; Michael Halper; James Geller; James J. Cimino (AMIA, 2002)

The cohesive metaschema: a higher-level abstraction of the UMLS Semantic Network. - Yehoshua Perl; Zong Chen; Michael Halper; James Geller; Li Zhang 048; Yi Peng (J. Biomed. Informatics, 2002)

Partitioning the UMLS semantic network. - Zong Chen; Yehoshua Perl; Michael Halper; James Geller; Huanying Gu (IEEE Trans. Inf. Technol. Biomed., 2002)

Evaluation and application of a semantic network partition. - James Geller; Yehoshua Perl; Michael Halper; Zong Chen; Huanying Gu (IEEE Trans. Inf. Technol. Biomed., 2002)

Using OODB Modeling to Partition a Vocabulary in Structurally and Semantically Uniform Concept Groups. - Li-min Liu; Michael Halper; James Geller; Yehoshua Perl (IEEE Trans. Knowl. Data Eng., 2002)

Frameworks for incorporating semantic relationships into object-oriented database systems. - Michael Halper; Li-min Liu; James Geller; Yehoshua Perl (Concurr. Comput. Pract. Exp., 2003)

Semantic refinement and error correction in large terminological knowledge bases. - James Geller; Huanying Gu; Yehoshua Perl; Michael Halper (Data Knowl. Eng., 2003)

Designing metaschemas for the UMLS enriched semantic network. - Li Zhang 048; Yehoshua Perl; Michael Halper; James Geller (J. Biomed. Informatics, 2003)

Model Formulation: An Enriched Unified Medical Language System Semantic Network with a Multiple Subsumption Hierarchy. - Li Zhang 048; Yehoshua Perl; Michael Halper; James Geller; James J. Cimino (J. Am. Medical Informatics Assoc., 2004)

Contextual Partitioning for Comprehension of OODB Schemas. - Huanying Gu; Yehoshua Perl; Michael Halper; James Geller; Erich J. Neuhold (Knowl. Inf. Syst., 2004)

An expert study evaluating the UMLS lexical metaschema. - Li Zhang 048; George Hripcsak; Yehoshua Perl; Michael Halper; James Geller (Artif. Intell. Medicine, 2005)

A lexical metaschema for the UMLS semantic network. - Li Zhang 048; Yehoshua Perl; Michael Halper; James Geller; George Hripcsak (Artif. Intell. Medicine, 2005)

Model Formulation: Relationship Structures and Semantic Type Assignments of the UMLS Enriched Semantic Network. - Li Zhang 048; Michael Halper; Yehoshua Perl; James Geller; James J. Cimino (J. Am. Medical Informatics Assoc., 2005)

An Application Intersection Marketing Ontology. - Xuan Zhou 007; James Geller; Yehoshua Perl; Michael Halper (Essays in Memory of Shimon Even, 2006)

Research Paper: Auditing as Part of the Terminology Design Life Cycle. - Hua Min; Yehoshua Perl; Yan Chen 009; Michael Halper; James Geller; Yue Wang 033 (J. Am. Medical Informatics Assoc., 2006)

Analysis of Error Concentrations in SNOMED. - Michael Halper; Yue Wang 033; Hua Min; Yan Chen 009; George Hripcsak; Yehoshua Perl; Kent A. Spackman (AMIA, 2007)

Piecewise Synonyms for Enhanced UMLS Source Terminology Integration. - Kuo-Chuan Huang; James Geller; Michael Halper; James J. Cimino (AMIA, 2007)

Ownership as a conceptual modeling construct. - Michael Halper; Li-min Liu; James Geller; Yehoshua Perl (Data Knowl. Eng., 2007)

Structural methodologies for auditing SNOMED. - Yue Wang 033; Michael Halper; Hua Min; Yehoshua Perl; Yan Chen 009; Kent A. Spackman (J. Biomed. Informatics, 2007)

Auditing Complex Concepts in Overlapping Subsets of SNOMED. - Yue Wang 033; Duo Helen Wei; Junchuan Xu; Gai Elhanan; Yehoshua Perl; Michael Halper; Yan Chen 009; Kent A. Spackman; George Hripcsak (AMIA, 2008)

Complexity Measures to Track the Evolution of a SNOMED Hierarchy. - Duo Helen Wei; Yue Wang 033; Yehoshua Perl; Junchuan Xu; Michael Halper; Kent A. Spackman (AMIA, 2008)

Automated comparative auditing of NCIT genomic roles using NCBI. - Barry Cohen; Marc Oren; Hua Min; Yehoshua Perl; Michael Halper (J. Biomed. Informatics, 2008)

Comparing Inconsistent Relationship Configurations Indicating UMLS Errors. - James Geller; C. Paul Morrey; Junchuan Xu; Michael Halper; Gai Elhanan; Yehoshua Perl; George Hripcsak (AMIA, 2009)

Auditing SNOMED Relationships Using a Converse Abstraction Network. - Duo Helen Wei; Michael Halper; Gai Elhanan; Yan Chen 009; Yehoshua Perl; James Geller; Kent A. Spackman (AMIA, 2009)

Using WordNet synonym substitution to enhance UMLS source integration. - Kuo-Chuan Huang; James Geller; Michael Halper; Yehoshua Perl; Junchuan Xu (Artif. Intell. Medicine, 2009)

Research Paper: Expanding the Extent of a UMLS Semantic Type via Group Neighborhood Auditing. - Yan Chen 009; Huanying Gu; Yehoshua Perl; Michael Halper; Junchuan Xu (J. Am. Medical Informatics Assoc., 2009)

Research Paper: Modeling Multi-typed Structurally Viewed Chemicals with the UMLS Refined Semantic Network. - Ling Chen 007; C. Paul Morrey; Huanying Gu; Michael Halper; Yehoshua Perl (J. Am. Medical Informatics Assoc., 2009)

Structural group auditing of a UMLS semantic type's extent. - Yan Chen 009; Huanying Gu; Yehoshua Perl; James Geller; Michael Halper (J. Biomed. Informatics, 2009)

Special Issue on Auditing of Terminologies. - James Geller; Yehoshua Perl; Michael Halper; Ronald Cornet (J. Biomed. Informatics, 2009)

The Neighborhood Auditing Tool: A hybrid interface for auditing the UMLS. - C. Paul Morrey; James Geller; Michael Halper; Yehoshua Perl (J. Biomed. Informatics, 2009)

Multimedia-based visual programming promoting core competencies in IT education. - V. J. Manzo; Matthew Halper; Michael Halper (SIGITE Conference, 2011)

Resolution of redundant semantic type assignments for organic chemicals in the UMLS. - C. Paul Morrey; Ling Chen 007; Michael Halper; Yehoshua Perl (Artif. Intell. Medicine, 2011)

Scalability of Piecewise Synonym Identification in Integration of SNOMED into the UMLS. - Kuo-Chuan Huang; James Geller; Michael Halper; Gai Elhanan; Yehoshua Perl (Int. J. Comput. Model. Algorithms Medicine, 2011)

Deriving an Abstraction Network to Support Quality Assurance in OCRe. - Christopher Ochs; Ankur Agrawal; Yehoshua Perl; Michael Halper; Samson W. Tu; Simona Carini; Ida Sim; Natalya Fridman Noy; Mark A. Musen; James Geller (AMIA, 2012)

Questionable relationship triples in the UMLS. - Huanying Gu; Gai Elhanan; Michael Halper; Zhe He 001 (BHI, 2012)

Clinical clarity versus terminological order: the readiness of SNOMED CT concept descriptors for primary care. - Zhe He 001; Michael Halper; Yehoshua Perl; Gai Elhanan (MIX-HS, 2012)

Using SNOMED semantic concept groupings to enhance semantic-type assignment consistency in the UMLS. - Duo Helen Wei; Michael Halper; Gai Elhanan (IHI, 2012)

Auditing complex concepts of SNOMED using a refined hierarchical abstraction network. - Yue Wang 033; Michael Halper; Duo Helen Wei; Huanying Gu; Yehoshua Perl; Junchuan Xu; Gai Elhanan; Yan Chen 009; Kent A. Spackman; James T. Case; George Hripcsak (J. Biomed. Informatics, 2012)

Abstraction of complex concepts with a refined partial-area taxonomy of SNOMED. - Yue Wang 033; Michael Halper; Duo Helen Wei; Yehoshua Perl; James Geller (J. Biomed. Informatics, 2012)

A chemical specialty semantic network for the Unified Medical Language System. - C. Paul Morrey; Yehoshua Perl; Michael Halper; Ling Chen 007; Huanying Gu (J. Cheminformatics, 2012)

A Family-Based Framework for Supporting Quality Assurance of Biomedical Ontologies in BioPortal. - Zhe He 001; Christopher Ochs; Ankur Agrawal; Yehoshua Perl; Dimitris Zeginis; Konstantinos A. Tarabanis; Gai Elhanan; Michael Halper; Natasha F. Noy; James Geller (AMIA, 2013)

Scalability of Abstraction-Network-Based Quality Assurance to Large SNOMED Hierarchies. - Christopher Ochs; Yehoshua Perl; James Geller; Michael Halper; Huanying Helen Gu; Yan Chen 009; Gai Elhanan (AMIA, 2013)

Choosing the Granularity of Abstraction Networks for Orientation and Quality Assurance of the Sleep Domain Ontology. - Christopher Ochs; Zhe He 001; Yehoshua Perl; Sivaram Arabandi; Michael Halper; James Geller (ICBO, 2013)

The readiness of SNOMED problem list concepts for meaningful use of electronic health records. - Ankur Agrawal; Zhe He 001; Yehoshua Perl; Duo Helen Wei; Michael Halper; Gai Elhanan; Yan Chen 009 (Artif. Intell. Medicine, 2013)

Using android as a platform for programming in the IT curriculum. - Michael Halper (SIGITE, 2014)

Abstraction networks for terminologies: Supporting management of "big knowledge". - Michael Halper; Huanying Gu; Yehoshua Perl; Christopher Ochs (Artif. Intell. Medicine, 2015)

Structural measures to track the evolution of SNOMED CT hierarchies. - Duo Helen Wei; Huanying Helen Gu; Yehoshua Perl; Michael Halper; Christopher Ochs; Gai Elhanan; Yan Chen 009 (J. Biomed. Informatics, 2015)

A Quality-Assurance Study of ChEBI. - Hasan Yumak; Ling Chen 007; Michael Halper; Ling Zheng; Yehoshua Perl; Gai Elhanan (ICBO/BioCreative, 2016)

Quality assurance of the gene ontology using abstraction networks. - Christopher Ochs; Yehoshua Perl; Michael Halper; James Geller; Jane Lomax (J. Bioinform. Comput. Biol., 2016)

Summarizing an Ontology: A "Big Knowledge" Coverage Approach. - Ling Zheng; Yehoshua Perl; Gai Elhanan; Christopher Ochs; James Geller; Michael Halper (MedInfo, 2017)

Using Convolutional Neural Networks to Support Insertion of New Concepts into SNOMED CT. - Hao Liu 025; James Geller; Michael Halper; Yehoshua Perl (AMIA, 2018)

Quality Assurance of Concept Roles in the National Cancer Institute thesaurus. - Ling Zheng; Yan Chen 009; Yehoshua Perl; Michael Halper; James Geller; Sherri de Coronado (BIBM, 2018)

Quality Assurance of Ontology Content Reuse. - Michael Halper; Christopher Ochs; Yehoshua Perl; Sivaram Arabandi; Mark A. Musen (ICBO, 2018)

Deep Learning in the IT Curriculum. - Amy K. Hoover; Adam Spryszynski; Michael Halper (SIGITE, 2019)

Quality assurance of complex ChEBI concepts based on number of relationship types. - Hasan Yumak; Ling Zheng; Ling Chen 007; Michael Halper; Yehoshua Perl; Gareth Owen (Appl. Ontology, 2019)

Missing lateral relationships in top-level concepts of an ontology. - Ling Zheng; Yan Chen 009; Hua Min; P. Lloyd Hildebrand; Hao Liu 025; Michael Halper; James Geller; Sherri de Coronado; Yehoshua Perl (BMC Medical Informatics Decis. Mak., 2020)

Guidelines for the reuse of ontology content. - Michael Halper; Larisa N. Soldatova; Mathias Brochhausen; Fatima Sabiu Maikore; Christopher Ochs; Yehoshua Perl (Appl. Ontology, 2023)

Using Dependency Injection for the Singleton Design Pattern in Android Apps. - Michael Halper (SIGITE, 2024)