Gio Wiederhold

Professor (Emeritus) of Computer Science, Medicine, and Electrical Engineering.

, advocates liberal access (see below), but takes no responsibility for use.

Computer Science Department, (InfoLab; ([pictures])
Gates Computer Science Bldg. 4A, room 436, Serra Street and Campus Drive;
Stanford University
Stanford CA 94305-9040
tel: +650 723-0872; fax: +650 725-2588
email to:
secretary: Marianne Siroker
Gates Computer Science Bldg. 4A, room 435
email to:

Personal Information.

(Addresses, Education; Professional Experience; Research; Papers; Students; Consulting; Innovations; and Honors)

Gio Wiederhold retired from full-time active academic service June 2001, but remains quite busy with fun projects and research outside of the University. He still teaches once or twice a year. He will not advise or take on students outside of current classes.


Fall 2014/2015:
CS207 The Economics of Software, with Vishal Sikka (CEO of Infosys). 2 units, meeting Fridays 10:00am - 11:50am, likely in Hewlett 102, starting 26 Sep.2013. The class focuses on what happens with software and related intellectual property once it is ready to enter the marketplace. This year material from Gio Wiederhold: Valuing Intellectual Capital; Springer 2014, will be used. CS207 combines course-style lectures with more outside experts for discussion.
Last year's information is accessible at the CS207 wiki. It is updated during the course as needed. Prior course information.

Student thesis reading and project supervision. Directed course Section Ids are 17(CS) and 65(EE).

Not offered anymore: Freshman Seminar: Business on the Internet, led by Avron Barr and Shirley Tessler. The class was last given Spring 2013/2014:

Large-scale Software Engineering:
CS 446, prior years.
C545G Genome Databases Seminar, presented by Dr. Peter Karp ( Material from prior years.

Winter 2004/2005: Material from prior presentations.

Research competence:

The design, implementation, evaluation, maintenance and valuation of large systems, as databases, knowledge bases, composed information systems, and general large, multi-site software. Often Mediator Technology is used. Applications of the concepts and technologies are found in medicine, engineering, and planning. Security and protection of privacy is a concern.

Current Research

Research undertaken after my formal retirement focuses on valuation of the intangibles inherent in software after it has been developed, and the relationships of software maintenance in the retention of its effectiveness and value. Most applications are related to offshoring.

Published results are listed in my publication list and on-going work can be found as work-in-progress.

Past Research Projects and Activities

revolved around Large-scale Interoperation, Mediation, and Composition (LIC).

For instance:

More detail of past research can be obtained on the LIC page and its descendants; earlier research projects range back to 1975.


A book that explains and analyzes quantitatively the valuation opf intellectual property and the resulting controversies in taxation of high-technology companies as Apple, Google, etc., by their use of tax havens: Gio Wiederhold: Valuing Intellectual Capital, Multinationals and Taxhavens ; series Management for Professionals, Springer Verlag, New York, August 2013, also available as an eBook. Pointers and background resources.

Many recent or important papers, as well as many viewgraphs, are available free via the ACM Digtal Library or directly to net browsers. An up-to-date list of all my papers is also available. A list of pointers to abstracts for presentations is also available.

Research bibliographies I collected of current and past (pre 1991) work by others related to my interests are also available.

I keep accessible some work-in-progress, not for general distribution. My general policy is that readers are free to peruse all my files that are not specifically access protected, but if material is used, I request that appropriate credit is given.

Gio also participates, with Voy, in setting up educational Computer Exhibits for the Computer Science Department in the Gates building. We update the exhibits on an incremental basis. A photo tour, based on the exhibits as of July 1999, is now on-line. We are also building a forest of Stanford faculty student trees. There is also a related Stanford History wiki site. Suggestions are welcome.

Gio created a Movie database {films, directors, actors, roles, remakes, studios} which has been been used for class projects as well as for fun. It has information on about 10 000 mainly classical or weird movies and their history.


Fellow, American College of Medical Informatics (ACMI) of AMIA, 1984.
Fellow, Institute of Electrical and Electronic Engineers (IEEE), 1992.
Fellow, Association for Computing Machinery (ACM), 1995.
Honorary Member, IFIP Working group TC2 WG2.6 on Databases.

Other Honors.