Article 1 – Name

The name of this society is ISOGO, the International Society of Global Optimization.

Article 2 – Purpose

Global optimization is a multi-disciplinary research field that deals with the characterization and computation of global extrema of nonconvex, nonsmooth and discrete functions. Global optimization problems are frequently encountered in modeling real world systems for a wide spectrum of applications in science, engineering, management, and complex systems.

Global optimization is playing a pivotal role in the development of modern engineering and sciences. With the rapid development of practical global optimization methodologies over the last thirty years, more and more scientists and engineers in diverse disciplines are using global optimization techniques and algorithms to solve their respective problems.

The field of global optimization has become mature enough to establish the International Society of Global Optimization.

The purpose of ISOGO is:

  1. To keep ISOGO members updated on important and relevant developments in global optimization.
  2. To contribute to research and interaction within the international global optimization community.

ISOGO plans to achieve its goals by:

  1. Holding an international conference on global optimization every three years.
  2. Sponsoring sessions at ISOGO international meetings.
  3. Organising additional professional meetings and publishing proceedings which focus on global optimization.
  4. Sponsoring the Journal of Global Optimization and other publications, as opportunities arise.
  5. Issuing a regular newsletter and establishing an electronic forum, to communicate recent developments and promote contact between researchers and practitioners with common interests.
  6. Awarding prizes which recognise high quality work in global optimization.

Article 3 – Membership

  1. Any person may become a member of ISOGO by submitting a membership application with the relevant Membership fee.
  2. Membership fees will be set by a majority vote at an ISOGO Meeting, and will cover membership for the current calendar year. Membership fees will remain the same from year to year if no action is taken at an ISOGO Meeting.
  3. Students and retired members may qualify for a reduction or waiver of the Membership fee, if approved by a majority vote at an ISOGO Meeting.
  4. Fees for Affiliate Members will be set by a majority vote at an ISOGO Meeting, which may differ from or be at a higher rate than for standard Members.
  5. In all other respects, all Members have equal rights, duties and privileges.

Article 4 – Officers & Board Composition


The President is the chief administrative officer of ISOGO and is responsible for the general supervision, direction and control of ISOGO business affairs.

The President:

  1. calls, organizes and presides at ISOGO Meetings;
  2. appoints committees as required, including prize committees;
  3. appoints the newsletter editor and chairs of ISOGO professional meetings;
  4. represents ISOGO in external affairs;
  5. submits an annual report to the ISOGO Board, which summarizes significant accomplishments and activities during the previous year;
  6. submits an annual budget request to the ISOGO Board.

With the exception of the inaugural President, the President must have been a previous Vice President and assume office upon the completion of the previous President’s term.

Vice Presidents

The four (4) Vice Presidents are responsible for organizing ISOGO-sponsored sessions at international conferences, as these opportunities arise.

In the absence or disability of the President, the President nominates one of the four (4) Vice Presidents to perform the duties and exercise the powers of the President.


The Secretary takes minutes at ISOGO Meetings, notifies Members of meetings, maintains an electronic forum or other regular contact with Members, coordinates the election of officers, takes responsibility for other matters of correspondence, and assists the President with preparation of the annual report describing ISOGO’s activities.


The Treasurer keeps financial records, collects Membership fees, and files an annual report describing ISOGO’s financial state.

Board Composition

In addition to the President, four (4) Vice Presidents, Secretary-General and Treasurer as ex-officio members of the Board, the ISOGO Board shall appoint other officers as deemed desirable by the Board.

Terms of Office

All terms begin at the start of the calendar year following the election.

  1. The terms of the President and Vice Presidents are two (2) years, and no person may serve as Vice President immediately after having served a full term as President.
  2. The term of the Secretary and the Treasurer is two (2) years, and no person may serve more than two (2) consecutive terms.
  3. The term for ISOGO Board members other than the President, Vice Presidents, Secretary and Treasurer is three (3) years, and two (2) of these members are elected each year. All offices and Board seats must be occupied by distinct persons, except that a Board member who is elected Vice President or Secretary or Treasurer may retain his/her seat on the Board.


The President shall appoint a Nominating Committee for the offices of the four (4) Vice Presidents, Secretary and Treasurer and for other officer positions on the ISOGO Board, and the Committee shall submit nominations to the current Secretary. The President shall also take nominations from the floor during the Annual General ISOGO Meeting. The Secretary shall invite further nominations in writing and/or electronic form from ISOGO members during a subsequent period he/she designates. All nominees must be members of ISOGO at the time of nomination.


The Secretary shall collect biographies and position statements of all nominees for inclusion on the ballot, which should also provide an opportunity for write-in votes. Each ISOGO member may vote for at most one (1) candidate for Vice President and no more than one for Secretary and Treasurer. The candidate with the most votes in each race assumes office. In addition, each ISOGO member may vote for any number of candidates for the two (2) open Board positions (approval voting). The two (2) candidates receiving the most votes become Board members. The election process must be completed within six (6) weeks following the Annual General ISOGO Meeting. Ties in any of these elections are broken by a run-off vote to be completed within six (6) weeks of these elections.

Election Process

The Secretary will forward official ballots to ISOGO members. Ballots shall be issued by one of the following media: a) letter mail ballot; b) electronic mail; c) a combination of letter mail and electronic mail ballots. Mechanisms for voting by either written or electronic media are to be adopted at the discretion of the Board, but must meet the following criteria to be valid: i) anonymity of the marking of ballots must be maintained; ii) procedures to validate the authenticity and uniqueness of the ballots must be provided; and iii) means to vote must be extended to all ISOGO members. For example, if electronic mail ballots are used, then those members without electronic mail access must be accommodated.

Article Five – ISOGO Meetings

ISOGO shall hold quarterly Meetings, of which of is the Annual General ISOGO Meeting. The quorum for action at a Meeting shall be five percent (5%) of the membership or fifteen (15) persons, whichever is smaller.

Article Six – Responsibilities

ISOGO and its officers are accountable for all ISOGO operations and procedures, and abide by all regulations and bylaws of ISOGO.

Article Seven – Fees

Fees to defray annual operational expenses may be assessed on all members by the Board of ISOGO.

Article Eight – Language

All papers presented at international conferences run by ISOGO shall be presented in English. However the President may authorize speakers to present their papers in the language(s) of the country in which the conference is held.

Article Nine – Conflicts of Interest

Officers will declare any financial interest they may have in any matter to be discussed by the ISOGO Board or at ISOGO Meetings. Having declared such an interest, they may not vote on the matter.

Article Ten – Amendments to Bylaws

Amendments to these bylaws may be adopted by two-thirds vote in an ISOGO Meeting, provided that the proposed amendment is distributed to all ISOGO members at least seven (7) days prior to the meeting.

During this seven (7) day period Members may suggest alternative wording to be considered before the proposal is submitted to the ISOGO President.

The amendment shall then be submitted to the ISOGO President, and becomes effective on approval by the ISOGO Board.

Article Eleven – Rules of Order during Meetings

Robert’s Rules of Order shall govern all ISOGO Meetings, except in those cases where they are inconsistent with these Bylaws.

Article Twelve – Transition

These Bylaws shall take affect when:

  1. approved by two-thirds vote at an ISOGO Meeting, and
  2. approved by the ISOGO Board.