International Journal of Hybrid Intelligent Systems



20, 4 issues

Latest issue

20:2 online 11 June 2024

Next issue

20:3 scheduled for September 2024

Back volumes

From volume 1, 2004

ISSN print


ISSN online


Aims & Scope

Hybridization of intelligent systems is a promising research field of modern Artificial Intelligence concerned with the development of the next generation of intelligent systems. A fundamental stimulus to the investigations of Hybrid Intelligent Systems (HIS) is the awareness in the academic communities that combined and integrated approaches will be necessary if the remaining tough problems in artificial intelligence are to be solved. Recently, hybrid intelligent systems are becoming popular due to their capabilities in handling many real world complex problems, involving imprecision, uncertainty and vagueness, high-dimensionality.

The International Journal of Hybrid Intelligent Systems (IJHIS) is a peer refereed journal on the theory and applications of hybrid and integrated intelligent systems. The key objective of IJHIS is to provide the academic community with a medium for presenting original research and applications related to the simultaneous use of two or more intelligent techniques. Rather than publishing papers in one particular area of expertise, the journal aims to be the main forum for publishing papers that involve the use of two or more intelligent techniques and approaches, such as neural networks, traditional knowledge-based methods, fuzzy techniques, genetic algorithms, agent-based techniques, case based reasoning, etc. The combination or integration of more distinct methodologies can be done in any form, either by a modular integration of two or more intelligent methodologies, which maintains the identity of each methodology, or by fusing one methodology into another, or by transforming the knowledge representation in one methodology into another form of representation, characteristic to another methodology.

The IJHIS invites authors to submit their original and unpublished work that communicates current research on hybrid and integrated intelligent systems, regarding both the theoretical and methodological aspects, as well as various applications of hybrid and integrated intelligent approaches to many real-world problems from science, technology, business or commerce.

Editorial Board


Ajith Abraham
Pro Vice Chancellor - Academics, Research,
Incubation, and International Relations Professor of Artificial Intelligence
Bennett University
Greater Noida 201310, Uttar Pradesh, India

Founding Editors

Ajith Abraham
Lakhmi C. Jain
Vasile Palade

Associate Editors

North America
Gail A. Carpenter
Boston University, Boston, USA

Walter D. Potter
University of Georgia, Athens, USA

Ishwar K. Sethi
Oakland University, Rochester, USA

Ron Sun
Rensselaer Polytechnic Institute, Troy, USA

Toshio Fukuda
Nagoya University, Nagoya, Japan

Mario Koeppen
Kyushu Institute of Technology, Kyushu, Japan

Tamas Gedeon
Murdoch University, Perth, Australia

Lakhmi C. Jain
University of South Australia, Adelaide, Australia

Nikola Kasabov
Auckland University of Technology, Auckland, New Zealand

Kate Smith
Deakin University, Melbourne, Australia

Robert J. Howlett
University of Brighton, Brighton, United Kingdom

Janusz Kacprzyk
Polish Academy of Sciences, Warschau, Poland

Vasile Palade
Oxford University, Oxford, United Kingdom

Stefan Wermter
University of Hamburg, Hamburg, Germany

Xin Yao
University of Birmingham, Birmingham, United Kingdom

Industrial Theme/Track Editor

Antony Satyadas IBM Corporation, Armonk, USA

Book Review Editor

Clarence W. De Silva
University of British Columbia, Vancouver, Canada

Editorial Board

Bruno Apolloni
University of Milan, Milan, Italy

José Manuel Benitez Sanchez
University of Granada, Granada, Spain

Sung-Bae Cho
Yonsei University, Seoul, Korea

Ian Cloete
International University in Germany, Bruchsal, Germany 

David Corne
University of Exeter, Exeter, United Kingdom

Arthur D'Avila Garcez
City University London, London, United Kingdom

André  De Carvalho
University of São Paulo, São Paulo, Brazil

Stan Franklin
University of Memphis, Memphis, USA

Bogdan Gabrys
University of Bournemouth, Bournemouth, United Kingdom

John Q. Gan
University of Essex, Essex, United Kingdom

Claude Ghaoui
Liverpool John Moores University, Liverpool, United Kingdom

Jerzy Grzymala-Busse
University of Kansas, Lawrence, USA

Robert F. Harrison
University of Sheffield, Sheffield, United Kingdom

‪Ioannis  Hatzilygeroudis‬‬‬‬
University of Patras, Patras, Greece

Francisco Herrera
University of Granada, Granada, Spain

‪Hisao Ishibuchi‬‬‬‬
Osaka Prefecture University, Sakai, Japan

Yukiaki Ishida
Toyohashi University of Technology, Toyohashi, Japan

Miroslav Karny
Academy of Sciences of Czech Repuplic, Prague, Czech Republic

Arpad Kelemen
University of Buffalo, Buffalo, USA

Andreas Koenig
University of Kaiserslautern, Kaiserslautern, Germany

Vincenzo Loia
University of Salerno, Salerno, Italy

Teresa Bernarda Ludermir
Federal University of Pernambuco, Recife, Brazil ‪ ‬‬‬‬‬‬‬

Victor Maojo
Polytechnical University of Madrid, Madrid, Spain

Daniel Neagu
University of Bradford, Bradford, United Kingdom

Madalina Negoita
Wellington Institute of Technology, Wellington, New Zealand

Nikhil R. Pal
Indian Statistical Institute, Kolkata, India

Günther‬‬‬ Palm
University of Ulm, Ulm, Germany

Jeng-Shyang Pan
National Kaohsiung University of Applied Sciences, Kaohsiung, Taiwan 

Witold Pedrycz
University of Alberta, Alberta, Canada

Nicolai Petkov
University of Groningen, Groningen, The Netherlands

Vincenzo Piuri
University of Milan, Milan, Italy

Germano Resconi
Catholic University, Brescia, Italy

Rajkumar Roy
Cranfield University, Cranfield, United Kingdom

Günther Ruhe
University of Calgary, Calgary, Canada

Ben Kwang-Mong Sim
Institute of Information Sciences, Academia Sinica, Taiwan

Martin R. Stytz
Air Force Research Laboratory, USA

Hideyuki Takagi
Kyushu University, Fukuoka, Japan

Gheorghe Tecuci
George Mason University, Fairfax, USA

Brijesh Verma
Central Queensland University, Brisbane, Australia

Abraham Wani
Central Queensland University at Bakersfield, USA

Richard Weber
University of Chile, Santiago, Chile

Bogdan M. Wilamowski
Auburn University, Auburn, USA

Ning Xiong
Malardalen University, Västerås, Sweden

Ronald R. Yager
Iona College, New Rochelle, USA

Kitakyushu Yoshida
Kyushu Institute of Technology, ‪Kazuya, ‬‬‬Japan‬‬‬‬

Author Guidelines


By submitting my article to this journal, I agree to the Author Copyright Agreement, the IOS Press Ethics Policy, and the IOS Press Privacy Policy.

Submit to our online submissions system.

Submitted papers must be in English and should not have been published elsewhere or be currently under consideration by any other journal.

Required files for final submissions
After the article has been accepted, the authors should submit the final version as source files, including a word processor file of the text, such as Word or LateX (If using LaTeX, please use the standard article.sty as a style file and also send a PDF version of the LaTeX file).

Color figures
It is possible to have figures printed in color, provided the cost of their reproduction is paid for by the author. See Preparation of Manuscripts for the required file formats.

Publication fee
International Journal of Hybrid Intelligent Systems (HIS) does not charge a publication fee.


Organization of the paper and style of presentation
Manuscripts must be written in English. Authors whose native language is not English are advised to consult a professional English language editing service or a native English speaker prior to submission.

Manuscripts should be prepared with wide margins and double spacing throughout, including the abstract, footnotes and references. Every page of the manuscript, including the title page, references, tables, etc., should be numbered. However, in the text no reference should be made to page numbers; if necessary, one may refer to sections. Try to avoid the excessive use of italics and bold face.

Manuscripts should be organized in the following order:

  • Title page
  • Body of text (divided by subheadings)
  • Acknowledgements
  • References
  • Tables
  • Figure captions
  • Figures
  • Headings and subheadings should be numbered and typed on a separate line, without indentation.

    SI units should be used, i.e., the units based on the metre, kilogramme, second, etc.

    Title page
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  • Title (should be clear, descriptive and not too long)
  • Name(s) of author(s); please indicate who is the corresponding author
  • Full affiliation(s)
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  • Complete address of corresponding author, including tel. no., fax no. and e-mail address
  • Abstract; should be clear, descriptive, self-explanatory and not longer than 200 words, it should also be suitable for publication in abstracting services
  • Keywords
  • Authorship
    Any author included in the author list should have contributed significantly to the paper, and no person who has made a significant contribution should be omitted from the list of authors. Please read the IOS Press authorship policy for further information.

    Number as Table 1, Table 2 etc, and refer to all of them in the text.

    Each table should be provided on a separate page of the manuscript. Tables should not be included in the text.

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    Column headings should be brief, but sufficiently explanatory. Standard abbreviations of units of measurement should be added between parentheses.

    Vertical lines should not be used to separate columns. Leave some extra space between the columns instead.

    Any explanations essential to the understanding of the table should be given in footnotes at the bottom of the table.


    Place citations as numbers in square brackets in the text. All publications cited in the text should be presented in an alphabetical list of references at the end of the manuscript in the following style:

    [1] B. Newman and E.T. Liu, Perspective on BRCA1, Breast Disease 10 (1998), 3-10.
    [2] D.F. Pilkey, Happy conservation laws, in: Neural Stresses, J. Frost, ed., Controlled Press, Georgia, 1995, pp. 332-391.
    [3] E. Wilson, Active vibration analysis of thin-walled beams, Ph.D. Dissertation, University of Virginia, 1991.

    Footnotes should only be used if absolutely essential. In most cases it is possible to incorporate the information in the text.

    • If used, they should be numbered in the text, indicated by superscript numbers and kept as short as possible.


    Number figures as Fig. 1, Fig. 2, etc and refer to all of them in the text.

    Each figure should be provided on a separate sheet. Figures should not be included in the text.

    Colour figures can be included, provided the cost of their reproduction is paid for by the author.

    For the file formats of the figures please take the following into account:

  • Line art should be have a minimum resolution of 600 dpi, save as EPS or TIFF
  • Grayscales (incl photos) should have a minimum resolution of 300 dpi (no lettering), or 500 dpi (when there is lettering); save as tiff
  • Do not save figures as JPEG, this format may lose information in the process
  • Do not use figures taken from the Internet, the resolution will be too low for printing
  • Do not use colour in your figures if they are to be printed in black & white, as this will reduce the print quality (note that in software often the default is colour, you should change the settings)
  • For figures that should be printed in colour, please send a CMYK encoded EPS or TIFF
  • Figures should be designed with the format of the page of the journal in mind. They should be of such a size as to allow a reduction of 50%.

    On maps and other figures where a scale is needed, use bar scales rather than numerical ones, i.e., do not use scales of the type 1:10,000. This avoids problems if the figures need to be reduced.

    Each figure should have a self-explanatory caption. The captions to all figures should be typed on a separate sheet of the manuscript.

    Photographs are only acceptable if they have good contrast and intensity.


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    Open Access

    By default, articles published in the International Journal of Hybrid Intelligent Systems are available only to institutions and individuals with access rights. However, the journal offers all authors the option to purchase open access publication for their article as part of the IOS Press Open Library. This means that the final published version will be freely available to anyone worldwide, indefinitely, under a Creative Commons license and without the need to purchase access to the article. This is also referred to as “gold” open access.

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    Authors who choose gold open access publication will be subject to an article publication charge of € 1500 / US$ 1500 for publication under the CC BY-NC 4.0 license or € 2150 / US$ 2150 for publication under the CC BY 4.0 license. Pricing is exclusive of possible taxes. After an article is accepted for publication, the corresponding author will be informed regarding the open access option during the production stages, and will have the opportunity to purchase open access for their article. It could be that the open access fee of an article is waived completely due an institutional agreement IOS Press has with the corresponding authors' institution. Please check the institutional agreements page for details.

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    Peer Review

    International Journal of Hybrid Intelligent Systems is a peer-reviewed journal. All articles submitted to the journal undergo a single blind peer review process. This means that the identity of the authors is known with the reviewers but the identity of the reviewers is not communicated to the authors. Please visit our reviewer guidelines for further information about how to conduct a review.

    All submitted manuscripts are subject to initial appraisal by the Editor-in-Chief, and, if found suitable for further consideration and plagiarism screening, to rigorous peer-review by independent, anonymous expert referees. Reasons to reject a paper in the pre-screening process could for example be because the work does not fall within the aims and scope, the writing is of poor quality, the instructions to authors were not followed or the presented work is not novel. Important: all articles not created using the journal style templates for LaTeX or MS Word (see author instructions) are desk rejected.

    Papers deemed suitable to be reviewed will be assigned a handling editor. The handling editor will then invite reviewers to comment on the work. Typically decisions are based on three reviews, in some circumstances a minimum of two reviews may be deemed sufficient to make a decision on a paper. The Editor-in-Chief strives to ensure a typical turnaround time of 3 months.

    Reviewers are asked to judge a paper on at least:

  • Originality, novelty and significance of results
  • Technical quality of work
  • Comprehensibility and presentation of the paper
  • Overall impression
  • Based on the received reviews the handling editor will propose to the Editor-in-Chief a recommendation:

  • Accept
  • Minor revisions required
  • Major revisions required
  • Revise and resubmit
  • Reject
  • They mean the following:

  • Accept: The manuscript is suitable for publication and only requires minor polishing; thus, no further reviews are requested.
  • Minor revisions required: The authors are required to make moderate changes to their manuscript. The manuscript becomes acceptable for publication if the changes proposed by the reviewers and editors are successfully addressed. The revised manuscript will be examined by the Editor-in-Chief and possibly sent back to all (or a selection of) reviewers for a second round of reviews. Authors are requested to provide a letter to the reviewers detailing the improvements made for the resubmission.
  • Major revisions required: The manuscript cannot be accepted for publication in its current form. However, a major revision which addresses all issues raised by the reviewers may be acceptable for publication. The revised manuscript will undergo a full second round of review. Authors are requested to provide a letter to the reviewers detailing the improvements made for the resubmission.
  • Revise and resubmit: In its current form, the manuscript is not suitable for publication. A resubmission would require substantial revisions and is only encouraged in special cases.
  • Reject: The manuscript is rejected as it is deemed to be out of scope, not relevant, or not meeting the journal’s quality standards in terms of significance, novelty, and/or presentation.
  • Authors are notified by the Editor-in-Chief, whose decision is final.


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