Roger G. Johnson

According to our database, Roger G. Johnson authored at least 23 papers between 1973 and 2018.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of four.

2018

How Three Poznan University Students Broke the German Enigma Code and Shortened World War Two.

Roger G. Johnson

Proceedings of the Internet of Things. Information Processing in an Increasingly Connected World, 2018

2016

There and Back Again - Andrew Booth, a British Computer Pioneer, and his Interactions with US and Other Contemporaries.

Roger G. Johnson

Proceedings of the International Communities of Invention and Innovation, 2016

2010

Andrew D. Booth - Britain's Other "Fourth Man".

Roger G. Johnson

Proceedings of the History of Computing. Learning from the Past, 2010

Recession, S-Curves and Digital Equipment Corporation.

David T. Goodwin, Roger G. Johnson

Proceedings of the History of Computing. Learning from the Past, 2010

IP3 - Progress towards a Global ICT Profession.

Roger G. Johnson

Proceedings of the Key Competencies in the Knowledge Society, 2010

2008

IP3 - National Societies' Roles and Responsibilities.

Roger G. Johnson

Proceedings of the E-Government, ICT Professionalism and Competences Service Science, 2008

2005

Ready Reckoners.

Bruce O. B. Williams, Roger G. Johnson

IEEE Ann. Hist. Comput., 2005

2002

PFDB: a generic protein family database integrating the CATH domain structure database with sequence based protein family resources.

Adrian J. Shepherd, Nigel J. Martin, Roger G. Johnson, Paul Kellam, Christine A. Orengo

Bioinform., 2002

2000

PPS - A Parallel Partition Sort Algorithm for Multiprocessor Database Systems.

X. Zhao, Nigel J. Martin, Roger G. Johnson

Proceedings of the 11th International Workshop on Database and Expert Systems Applications (DEXA'00), 2000

1994

DBJ - a Dynamic Balancing Hash Join algorithm in multiprocessor database systems.

X. Zhao, Roger G. Johnson, Nigel J. Martin

Inf. Syst., 1994

DBJ - A Dynamic Balancing Hash Join Algorithm in Multiprocessor Database Systems (Extented Abstract).

X. Zhao, Roger G. Johnson, Nigel J. Martin

Proceedings of the Advances in Database Technology, 1994

Evolutions of Object States in Temporal Object-Oriented Databases.

Yung P. Jang, Roger G. Johnson

Proceedings of the ACM 22rd Annual Computer Science Conference on Scaling up: Meeting the Challenge of Complexity in Real-World Computing Applications, 1994

1992

Comments on "Extensions to SQL for Historical Databases".

Roger G. Johnson, Nikos A. Lorentzos

IEEE Trans. Knowl. Data Eng., 1992

1988

Extending relational algebra to manipulate temporal data.

Nikos A. Lorentzos, Roger G. Johnson

Inf. Syst., 1988

Requirements Specification for a Temporal Extension to the Relationsl Model.

Nikos A. Lorentzos, Roger G. Johnson

IEEE Data Eng. Bull., 1988

An Extension of the Relational Model to Support Generic Intervals.

Nikos A. Lorentzos, Roger G. Johnson

Proceedings of the Advances in Database Technology, 1988

1987

TRA: A Model for a Temporal Relational Algebra.

Nikos A. Lorentzos, Roger G. Johnson

Proceedings of the Temporal Aspects in Information Systems, 1987

1984

A Framework of Reference for Database Design.

Maristella Agosti, Roger G. Johnson

Data Base, 1984

Integrating Data and Metadata to Enhance the User Interface.

Roger G. Johnson

Proceedings of the Third British National Conference on Databases (BNCOD 3), 1984

1981

Query Validation: Reverse Translation and the Connection and Selection Trap.

T. Crowe, D. R. Hainline, Roger G. Johnson

Proceedings of the First British National Conference on Databases (BNCOD-1), 1981

1975

The Conversion of Decision Tables to Sequential Testing Procedures.

Peter J. H. King, Roger G. Johnson

Comput. J., 1975

1974

Comments on the Algorithms of Verhelst for the Conversion of Limited-Entry Decision Tables to Flowcharts.

Peter J. H. King, Roger G. Johnson

Commun. ACM, 1974

1973

Some Comments on the Use of Ambiguous Decision Tables and Their Conversion to Computer Programs.

Peter J. H. King, Roger G. Johnson

Commun. ACM, 1973