Camera-ready paper instructions


Submission deadline: July 15, 2020 (23:59 CET)

The accepted papers are published in an LNCS/LNAI volume entitled:
Statistical Language and Speech Processing, Seventh International Conference, SLSP 2020
Cardiff, United Kingdom - October 14-16, 2020
Luis Espinosa-Anke, Carlos Martín-Vide and Irena Spasić (Eds.)

Preparation steps

1.- Please take carefully into account the suggestions of the reviewers and make the necessary modifications to your paper.

2.- Follow the technical instructions (described below); prepare your bibliography using BibTex together with the style splncs03.bst provided by Springer, which produces numbered citations (ignore the text in the template's sample document which suggests that author/year citations are acceptable).

3.- LNCS recommends keywords, to be added after the abstract. As the first keyword, please use one of the categories announced in the call for papers which best fits your paper (more details in the technical instructions).

4.- There is a recommended limit of 12 pages for regular contributions. For invited papers, the length is up to 24 pages.

5.- Fill in the copyright form (pdf, 65kB). It is sufficient for one of the authors to sign the copyright form. Careful, university jobs do not mean "employee of EU"!

6.- Pack your working files (tex file(s), pictures, splncs03.bst, a bibliography (.bib) file) into a zip archive. Make minimal zip archives when submitting, do not add llncs.cls, the pdf version of the paper or the copyright form.

7.- Click here to submit your files using your EasyChair author account; follow the instructions after login for uploading three files:

  • a zip archive with your source files,
  • a pdf version of your paper,
  • the signed copyright form. If you do not find the appropriate forms for sources and copyright, then probably you are still in the "papers for review" area of Easychair. To move to LNCS proceedings just click on Proceedings in the toolbar.

8.- After submitting the files, EasyChair gives some messages. ONLY ONE warning message is allowed: Package amsmath Warning: Unable to redefine math accent \vec. The rest of warnings or errors should be solved by the authors making the appropriate corrections. Pay special attention to overfull boxes!

9.- At least one author per paper should register. Papers that do not have a registered author who paid the fees by July 15, 2020 will be excluded from the proceedings. One registration gives the right to present only one paper. This will be strictly enforced. Follow the updated directions about the registration and payment procedure at the registration page. Please notice that those who will register as students will need to show the proof of their status (student ID or university certificate) at the organizers' request.

Detailed technical instructions

Instructions for LNCS authors are available here. Before submitting your files please verify the following checkpoints. The recommendations below follow the order we construct our document.

  • ▸Use as few .tex files as possible, a single file is best, name it main.tex, it helps the assembling task.
  • ▸Use \documentclass[runningheads, envcountsame, a4paper]{llncs} and only these options; some packages modify the paper format to letter if a4 is not specified.
  • ▸Use Algorithm2e for listings of algorithms.
  • pdflatex processes a bit better than the sequence latex, dvips, pspdf. If switching from latex to pdflatex causes problems, using these options often helps:

    could help to switch from latex to pdflatex.

  • \usepackage[hyphens]{url} improves the aspects of hyperlinks in the final document.
  • \usepackage{microtype} solves some small overfull errors.
  • ▸Titles: In English, the first word and the last word of titles should be capitalized. In addition, all nouns, pronouns, adjectives, verbs, adverbs, and subordinate conjunctions should be capitalized. Articles and coordinating conjunctions are not capitalized. Traditionally, prepositions are not capitalized. Use the same conventions for all titles of sections, subsection, etc.
  • ▸In \author use \and as separator between authors names.
  • ▸Give all the affiliation (the entries in this order, one entry per line), department, university, street address (including country), e-mail. Do not use comma or dot at the end of each affiliation line.
  • ▸UK authors should use the form "UK" rather than other variations such as U.K., United Kingdom, England etc.
  • ▸In email if you use {author1,author2,...}@... please use \email{$\{$author1,... $\}$@...}.
  • ▸Use \fnmsep (i.e. footnote mark separator) to separate \thanks by \inst.
  • \titlerunning could be shorter than Title, please check to see if it fits in the header, if not, then you should shorten it up.
  • ▸Inside the \authorrunning{} field of your article, please use only the initial of your first name, followed by a dot. The word "and" between two authors is used without a comma. If there are three or more authors, there is a comma before "and". If headings with author names are not fitting well in the page, then you should use "et al." after the first author.
  • ▸Use \toctitle and \tocauthor, they are important fields defining your paper in the proceedings Table Of Contents.
  • ▸For \tocauthor use ~ between first name and name to avoid a break line inside author's names.
  • ▸After \maketitle \setcounter{footnote}{0} to start footnotes from 1 after \thanks.
  • ▸As the first keyword, please use one of the categories announced in the call for papers which best fits your paper. If none of the announced categories fits, then with the first keyword just define your new topic. Please, use significant keywords (not needed titlecase for keywords).
  • ▸Normally, captions of tables, figures, should end without a dot. If you feel that dots are needed, please be consistent throughout the article. Table captions are above the tables, while figures have captions below.
  • ▸if you wish to include an Appendix, then the position of such a section is right before the Acknowledgments and References, as usually these things are the last parts in a paper.
  • ▸For Acknowledge please use \section*{Acknowledgments}.
  • ▸Please use BIBTEX: it is a computer program taking care about consistency of bibliography, (within the paper and cross papers). There exists also an automatic conversion tool from bibitem to bibtex, yet not all formats are recognized. Note that Googling for a title together with the word "bibtex" usually gives good results.
  • ▸Check the names in the bibliography: accents are often missing, and capital letters often disappear in publication titles including names of people and languages, acronyms etc. This can usually be fixed by adding a new level of {...} in the .bib file.
  • ▸To prevent line breaking in unwanted places, we can use \mbox{...}.
  • ▸Check spelling errors and English mistakes for the whole paper. You are the last one checking for spelling errors before your paper is published.

Using Colors

In the printed volume, illustrations are generally black and white (halftones), and only in exceptional cases, and if the authors are prepared to cover the extra costs involved, are colored pictures accepted. Colored pictures are welcome in the electronic version free of charge. If you send colored figures that are to be printed in black and white, please make sure that they really are also legible in black and white. Some colors show up very poorly when printed in black and white.

  • ▸Please check the legibility of pictures, they should be large enough to read/understand in the printed version
  • ▸check also the legends of the graphics, use different markers that show clearly the differences among various lines represented


  • ▸do not change the default font of the document (that is do not \usepackage{times} or other fonts), or use too many variations on fonts.
  • ▸do not \usepackage[...]{babel} ,
  • ▸do not use whatever fancy signs as in mathabx.
  • ▸do not modify \qed.
  • ▸do not use a4wide or geometrix.
  • ▸avoid using \vspace, and definitely do not use \vspace with a negative argument. If things are not going as we wish, instead of negative \vspace there should be another solution.
  • ▸do not use \newpage for formatting reasons, trying to fit floating figures or tables.
  • ▸do not use frames around figures, algorithms, other elements of your paper.
  • ▸do not use a complicated directory structure for your document, usually for a short paper things can be solved with a single source file.
  • ▸do not use \newcommand{\keywords}... The new LNCS style has internally defined this command.
  • ▸do not \usepackage{hyperref}
  • ▸do not \usepackage{caption}
  • ▸do not use \mailsa to specify the authors' email addres, where \mailsa is defined as \urldef{\mailsa}\path|an@email}
  • ▸we can use \email{...} command available in the llncs.cls.
  • ▸do not use \mainmatter; this is a command only for the whole volume, for papers inside the volume this is rather undesirable.
  • ▸do not use \sloppy; a simple solution for overfull errors could be to rephrase the sentences causing problems; in many cases \usepackage{microtype} helps too.

Several tips

  • In case we still wish to use hyperref, despite of the recommendation from Don'ts, we can do it like this: \usepackage[hidelinks]{hyperref}

  • If we need subfigures, then we could

    \usepackage[caption=false]{subfig} ...and when needed the subfigures...
    \subfloat[label (a)\label{fig:label:a}]{
    \subfloat[label (b)) \label{fig:label:b}]{
    \caption{general caption}
  • For tables giving an Overfull Errors, we can simply correct with \resizebox{\textwidth}{!}{\begin{tabular}{|l||c|c|c|c|c|}...\end{tabular}}

  • \usepackage{breqn} to break line in equations

  • To scale math arrays:

    \newcommand\scalemath[2]{\scalebox{#1}{\mbox{\ensuremath{\displaystyle #2}}}} 
  • In case we wish to avoid the warning message about redefine math accent:

    \documentclass[runningheads, envcountsame, a4paper]{llncs} 

In case of technical problems, please contact