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We have received several queries/comments on some important words that are missing in the initial ROILA vocabulary. For e.g. there is no word for robot. We have apple, but no eat. We have shirt, but no pants, and no wear. By using Basic English and its 800 or so constituent words as the vocabulary we are obviously constrained by our design decision. Fortunately, ROILA words are generated automatically by a genetic algorithm, therefore to extend the vocabulary is only a matter of rerunning the algorithm with slightly modified parameters so that the algorithm takes into account the existing vocabulary and does not discard it completely.

Consequently we see the following approach can solve the problem of certain missing words:

We re-run the genetic algorithm so that it generates a new vocabulary comprising of 100 “wild card” words besides the same original 800 ROILA words. ROILA users could then assign any meaning to any word from those 100 wild card words. Of course it can always be another number than 100, it could be more or less depending on the requirements. The genetic algorithm will be responsible of ensuring that the new vocabulary has words which are acoustically different from each other. We will be providing the list of 100 wild card ROILA words very soon.

Here is the list that we promised, 100 new ROILA words in no particular order: sisol, melowe, mowif, pawowu, foje, pepase, wojas, lobo, wobis, japaf, bofet, tenut, totab, lajak, nafose, kisofo, wabuk, powijo, nosil, bifut, jusefu, koset, mepof, mobali, tamis, juwisa, nafob, memab, jesen,  sunob, sisot, fekef, loji, jesel, jitat, fibi, tunik, jetate, lumoj, nubuk, wutema, silif, wilaf, lulos, sekefa, kukip, kutil, tewajo, fesopi, fesamu, wujifi, bapan, bileki, nilin, malolu, patosi, koko, nokab, palana, samup, metin, jamena, wutose, winilo, nojoja, waboki, pajib, mibilu, soteju, pewepa, pupapo, metoja, tele, kewub, bowaj, limim, poban, kalalu, mapib, ponob, nefimu, baluw, nokej, nuketo, pike, tafoba, pakawe, tumib, pojos, nikabo, sopip, sesip, bulo, lapun, nelale, kabeta, fipos, pafes, mukeni, jekemi

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We are pleased to inform that Wetenschap 24 (a Dutch media company that reports on state of art scientific research) did a video interview and report on ROILA. Find the 3 minute clip below. The video was also broadcast on Nederland 2 (a local dutch channel) as part of the program Science Flash. The report (in dutch) can be found here.

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We are pleased to inform you that we have made some progress with getting Festival TTS going for ROILA. As always feedback and comments are welcome. Please note that this is still work in progress.

Here are the initial results (for sake of consistency, we provide audio files of sample sentences that are also discussed elsewhere)

fosit koloke
fosit nole
buse fosit
bama buse fosit
bobuja
fosit jimeja
fosit kipupi
fosit webufo
fosit besati

The output from text to speech was also passed to the Sphinx-4 speech recognizer and the recognition results were good.

Several steps are required to accomplish TTS for ROILA and ultimately to get your audio files. We will post details very soon so that everyone can have their machines talk in ROILA!

Acknowledgement: We would like to thank Steve Pomeroy for providing a sample script of  how to enable Festival to speak in artificial languages. We would also like to thank Alex Juarez for helping in running Festival on Linux.

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We would like to appreciate the considerable interest that has been generated recently for ROILA. We thank everyone for their comments, feedback and kind suggestions. We aim to get back to everyone as soon as possible and address the valuable points that have been raised with regards to the design of the ROILA language.

Currently we are working on the speech synthesis stage of our project. We aim to have a text to speech engine that can speak ROILA at will. For this purpose we are playing around with Festival, which is an open source tts engine. Festival also goes by its CMU name of Festvox. If you have any pointers (practical experience) about the following, please do contact us:

  1. Implementing a new voice in Festival
  2. Implementing a new language in Festival
  3. Employing the use of Festival within the LEGO NXT platform

Moreover we have also found an online tool CMU Spice which provides a platform where new languages can be evaluated from both a speech recognition and a speech synthesis perspective. If you have had a successful experience with it, please do contact us as well.

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We would like to appreciate the continued support of LEGO Mindstorms. They have donated 20 NXT kits and 1 cubic meter of LEGO Technic in support of the ROILA project. We aim to reward the children who will eventually learn ROILA with the NXT kits. Recently there was also a post about our project on the LEGO NXT Mindstorms blog and on Popular Science.

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We were pleased to present ROILA and its demo recently on two separate occassions. The first was on June 21, when an internationl review board visited our department of industrial design to evaluate the quality of research done here. As part of their visitation we had the honour of presenting ROILA and also gave a working demo about it. A similar demo was given on July 6 (see video below), when the staff of Philips Research Eindhoven visited our deparment as part of research collaboration activities.

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Incase you have tried to install Sphinx and use it to recognize ROILA, we would like to point out a small glitch. While downloading Sphinx-4 from sourceforge, you may be tempted to install the latest beta version 4. However doing so and later on running Sphinx from within Java gives a Class not found exception for WSJ_8gau_13dCep_16k_40mel_130Hz_6800Hz.jar – which is the acoustic model class file. To have everything working smoothly please install either beta version 3 or 2. As soon as we figure out why this conflict happens we will let it be known.

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We are pleased to inform that we have had a paper on ROILA accepted to the 7th International Conference on Natural Language Processing (IceTAL 2010). We hope to be actively involved in the conference scheduled to take place in Reykjavik, Iceland. We will upload the final version of the paper in due course.

We have now written out a short technical primer describing how users can have ROILA being recognized by machines and LEGO NXT robots. Find out more details about it in the speech recognition section. Please do try it out and contact us in the case of any problems.

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