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Submission Preparation Checklist

As part of the submission process, authors are required to check off their submission's compliance with all of the following items, and submissions may be returned to authors that do not adhere to these guidelines.
  • The submission has not been previously published, nor is it before another journal for consideration (or an explanation has been provided in Comments to the Editor).
  • The submission file is in OpenOffice, Microsoft Word, or RTF document file format.
  • The text is single-spaced; uses a 12-point font; employs italics, rather than underlining (except with URL addresses); and all illustrations, figures, and tables are placed within the text at the appropriate points, rather than at the end.
  • The text adheres to the stylistic and bibliographic requirements outlined in the Author Guidelines.
  • All work in the paper should be free of any plagiarism.
  • Prepare manuscripts according to the Publication Manual of the American Psychological Association using the 7th edition. APA Style and Grammar Guidelines for the 7th edition are available.
  • The use of artificial intelligence systems, including Chat GPT, as co-authors or assistants in the writing of scientific articles is not permitted.

Author Guidelines



The International Journal of Combinatorial Optimization Problems and Informatics is an international scientific electronic journal which publishes papers form all areas related to Informatics and the Combinatorial Optimization Problems.




The international Journal of Combinatorial Optimization Problems and Informatics published papers in different areas related to the Informatics. The topics are:

  • Combinatorial Optimization Problems (COPs).
  • Computer Science Security.
  • Computational Complexity.
  • Computational aspects in Science of life.
  • Computational Intelligence.
  • Doctoral thesis Summary.
  • Grid Computing.
  • Meta-heuristic and heuristics algorithms.
  • Operations Research.
  • Semantic Web.
  • Software engineering.
  • Technical reports of master’s thesis and bsc´s thesis.
  • Web Technologies.


Evaluation Process

The Steps of the Editorial process are:

1.- The author must to submit the paper using the paper submission system. By submitting your article to the International Journal of Combinatorial Optimization Problems and Informatics, you and all co-authors of your submission agree to the terms of the Copyright Transfer Agreement.

2.- The manuscript is read and examined for conformity to the Instructions for Authors by the editor. Failure to meet the criteria outlined may result in return of the manuscript for correction before evaluation. Kindly note that we will process your paper with the Online Plagiarism Checker Software "iThenticate". Your paper will be rejected in case more than 30% of similarity is found with other published sources including your published papers. Your paper will be also rejected in case of discovery of any double submissions or submissions of the already published results in another journal or a conference. The journal may take a further action by blacklisting the corresponding author and the co-authors of this paper.

3.- The editor selects two or three referees who are invited, in confidence, to evaluate the manuscript according to the following aspects:

  • Originality of the work.
  • Relevance to scientific knowledge in Informatics and Combinatorial Optimization Problems.
  • Background: Theoretical background adequate. Hypothesis, objectives and clear contribution to IJCOPI topics.
  • Methodology: Materials and methods appropriate and adequately described. Sound experimental design.
  • Results: Data concise and sufficient. Statistics analysis when appropriate. Efficiency measurements. Figures clear and correct, only essential data should be included in figures. Elimination of figures, graphs and tables which add little or could be replaced by a few sentences or a statement of numerical values is recommended.
  • Discussion: In-depth discussion, correct interpretation.
  • Formal Aspects: Correct language, references properly cited. High quality figures. Adherence to usual and consistent nomenclature. Title and summary sufficiently informative.

    All the above items will be evaluated as outstanding, good, fair, mediocre or poor by an assessment form given to evaluators.


4.- The manuscript could be: accepted; accepted after minor revision (no further review required); accepted only after major revisions, inappropriate for the journal; rejected. If the paper is accepted after major revisions, it must be sending again for peer review to the same evaluators.

5.- If the manuscript is accepted or accepted with minor revision, later of the modifications realized for the author. The authors must to fill the query proofs of the paper and later, the author must check the final full text. Once the final PDF are ready, the paper is announced and becomes available for all audiences.



Publication Charges

For promotion in the 2010 and 2023 the fees publication is free. Later, all information about publication charges can be found here.


Instructions for authors


Authors should submit their paper electronically (, in WORD (.doc file). Manuscripts should not exceed 20 pages, including figures, tables, references and appendices. Electronic submission substantially reduces the editorial processing and reviewing times and shortens overall publication times. Technical reports or notes and viewpoints should not exceed six manuscript pages. Viewpoints should be submitted as for regular papers, but omitting abstract, keywords and statement of contribution. Book Reviews should only be offered after consultation with the Book Reviews Editor and should not be submitted using this system. Spelling should conform with The Concise Oxford Dictionary.


As part of the submission process, authors are required to check off their submission's compliance with all of the following items:

  • The submission has not been previously published, nor is it before another journal for consideration.
  • The submission file is in Microsoft Word document file format.
  • The text adheres to the stylistic and bibliographic requirements outlined in the Author Guidelines, which is found in About the Journal.


All contributions should be concise and written in English. Authors must assure that no part of the paper has been published nor submitted for publication elsewhere. Please follow the templates and the Author Guidelines for IJCOPI Manuscripts:


Format of Research papers (doc)

Format of Doctoral thesis summary (doc)

Format of Technical reports (doc)


Please, follow our instructions faithfully, otherwise you have to resubmit your full paper.  This will enable us to maintain uniformity in the IJCOPI. The better you look, the better we all look. Thank you for your cooperation and contribution.


Title Page

The title page should include: A concise and informative title

Author(s) Name(s)

Author Affiliation(s)

The e-mail address of the authors



The abstract should summarize the contents of the paper and should contain at least 70 and at most 150 words. It should be set in 9-point font size and should be inset 1.0 cm from the right and left margins. There should be two blank (10-point) lines before and after the abstract. The abstract should not contain any undefined abbreviations or unspecified references.



Please provide 4 to 6 keywords which can be used for indexing purposes.


Heading of each section

The heading of each section should be printed in small, 12pt, left justified, bold, Times New Roman. You must use numbers 1, 2, 3, … for the sections' numbering and not Latin numbering (I, II, III, …).



Check that in line drawings, lines are not interrupted and have constant width. Grids and details within the figures must be clearly readable and may not be written one on top of the other. Line drawings should have a resolution of at least 800 dpi (preferably 1200 dpi). For digital halftones 300 dpi is usually sufficient. The lettering in figures should have a height of 2 mm (10-point type). Figures should be scaled up or down accordingly. Color pictures are welcome in the electronic version. Please use GNP or GIF format, except for photos (with maximum size file of 1 MB).



Table captions should always be positioned above the tables. The final sentence of a table caption should end without a period.



Displayed equations or formulas are centered and set on a separate line (with an extra line or halfline space above and below). Displayed expressions should be numbered for reference. The numbers should be consecutive within each section or within the contribution, with numbers enclosed in parentheses and set on the right margin. Please punctuate a displayed equation in the same way as ordinary text but with a small space before the end punctuation. Please use the math tool, for example math type. Mathematical expressions and Greek or other symbols should be written clearly with ample spacing. Use widely accepted symbols and abbreviations, following the style of BS 1991 Part 2 1954


Program Code

Program listings or program commands in the text are normally set in typewriter font, e.g., CMTT10 or Courier.



The superscript numeral used to refer to a footnote appears in the text either directly after the word to be discussed or – in relation to a phrase or a sentence – following the punctuation sign (comma, semicolon, or period). Footnotes should appear at the bottom of the normal text area, with a line of about 5cm immediately above them. 



The list of references is headed “References” and is not assigned a number in the decimal system of headings. The list should be set in small print and placed at the end of your contribution, in front of the appendix, if one exists. Please do not insert a pagebreak before the list of references if the page is not completely filled. An example is given at the end of this information sheet. For citations in the text please use square brackets and consecutive numbers: [1]…..[2]……,…..[3], …


Page Numbering and Running Heads

Your paper should show no printed page numbers; these are allocated by the volume editor. Do not set running heads.


Experimental procedures

Working details must be given concisely; well-known operations should not be described in detail.



These could be presented in tabular or graph form, with appropriate statistical evaluation. Discussion of results. Statement of conclusions drawn from the work.


Reference list

The list of references should only include works that are cited in the text and that have been published or accepted for publication. Personal communications and unpublished works should only be mentioned in the text. Do not use footnotes or endnotes as a substitute for a reference list.


Journal article

Hamburger, C.: Quasimonotonicity, regularity and duality for nonlinear systems of partial differential equations. Ann. Mat. Pura. Appl. 169, 321–354 (1995)


Article by DOI

Slifka, M.K., Whitton, J.L. Clinical implications of dysregulated cytokine production. J Mol Med. (2000) doi:10.1007/s001090000086



Geddes, K.O., Czapor, S.R., Labahn, G.: Algorithms for Computer Algebra. Kluwer, Boston (1992)


Book chapter

Broy, M.: Software engineering — from auxiliary to key technologies. In: Broy, M., Denert, E. (eds.) Software Pioneers, pp. 10–13. Springer, Heidelberg (2002)


Online document

Cartwright, J.: Big stars have weather too. IOP Publishing PhysicsWeb. (2007). Accessed 26 June 2007



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  2. Bruce, K.B., Cardelli, L., Pierce, B.C.: Comparing Object Encodings. In: Abadi, M., Ito, T. (eds.): Theoretical Aspects of Computer Software. Lecture Notes in Computer Science, Vol. 1281. Springer-Verlag, Berlin Heidelberg New York (1997) 415–438
  3. Van Leeuwen, J. (ed.): Computer Science Today. Recent Trends and Developments. Lecture Notes in Computer Science, Vol. 1000. Springer-Verlag, Berlin Heidelberg New York (1995)
  4. Michalewicz, Z.: Genetic Algorithms + Data Structures = Evolution Programs. 3rd edn. Springer-Verlag, Berlin Heidelberg New York (1996)

comia 2020

comia 2020

SI Business Analytics

The special issue will be focused on related areas with Business Analytics. The proposed name to the special issue is Soft Computing to Business Analytics: Theory and Practice. You can find below a brief outline of the call for papers on this special issue.

Nowadays, Business Analytics (BA) is an emergent field with a substantial impact on our world today. Approaches from all mathematical and computer sciences areas are involved in this field. BA is probably the most important manifestation of the knowledge economy and knowledge society. Transforming data in knowledge and using it harmonically in Decision Making is not, anymore, a luxury of the most prestigious companies and organizations, but an obligation to get competitive products and high-quality services. Papers with hybrid system solutions for BA applications in significant business decision-making problems will be joined in this issue.

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