L²F - INESC ID Lisboa
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INESC ID's Spoken Language Systems Laboratory (L²F - Laboratório de sistemas de Língua Falada) was created in January 2001, bringing together several research groups which could potentially add relevant contributions to the area of computational processing of spoken language for Portuguese. The lab is integrated in the research unit of Interactive Intelligent Systems.

Gopala`s PhD thesis work

ASR + SMT + TTS/SPAM + INTENT TRANSFER

PT original (ASR+SMT subtitles)

ASR + SMT + TTS (no SPAM)

ASR + SMT + TTS/SPAM

More demos from L2F on YouTube: S2S translation VITHEA 3D office PT-STAR


Next events:

Apr 16th, 2014 (CMU)
João Miranda presents his PhD proposal, entitled "Combining Multiple Parallel Streams for Improved Speech Processing".

May 2nd, 2014 (CMU)
Luís Marujo presents his PhD proposal, entitled "Temporal Contextualization of News Articles and Broadcast News".

Past events:

Dec 3rd, 2013 (16h, room 336)
Joakim Gustafson presented Towards face-to-face conversations with social robots.

Oct 31st, 2013 (13h, room 020)
Bhiksha Raj presented Unsupervised semantic structure discovery for audio.


Participation in Conferences:

Dec 8-12, 2013
Ramon Fernandez Astudillo and João Miranda attended ASRU 2013, the IEEE Automatic Speech Recognition and Understanding Workshop, in Olomouc, Czech Republic.

Aug 4-9, 2013
Luísa Coheur and Ana Cristina Mendes attended ACL 2013, the 51st Annual Meeting of the Association for Computational Linguistics, in Sofia, Bulgaria.





New Master Theses Themes at L2F (2013/14)


Scientific Award - Fernando Batista was one the winners of the 2013 edition of the ISCTE-IUL scientific awards with the work "Bilingual Experiments on Automatic Recovery of Capitalization and Punctuation of Automatic Speech Transcripts" published in the IEEE Transactions on Audio, Speech, and Language Processing.

Alberto Abad Gareta and Anna Pompili have received a prize for their work on project VITHEA (Virtual Therapist for Aphasia treatment). Vithea.png

Fernando Batista and Ricardo Ribeiro took part in a experimental evaluation campaign on sentiment analysis based on short text opinions extracted from social media messages in the context of TASS - Workshop on Sentiment Analysis at SEPLN (satellite event of the SEPLN 2012 conference). The obtained results ranked them in
- 1st. place in "Trending topic coverage";
- 2nd. place in "Sentiment Analysis".

Scientific Award - Ricardo Ribeiro was one the winners of the 2012 edition of the ISCTE-IUL scientific awards with the work "Revisiting Centrality-as-Relevance: Support Sets and Similarity as Geometric Proximity" published in the Journal of Artificial Intelligence Research.

IEEE Fellow - Prof. Isabel Trancoso The Institute of Electrical and Electronics Engineers, IEEE, appointed Prof. Isabel Trancoso as a Fellow of this prestigious institution.


Research Opportunities - The Spoken Language Systems Lab is looking for students interested in pursuing a PhD in Language Technologies. Post-Doc positions are also open. The typical PhD program in our lab is held in cooperation with international Universities.




Voice Interaction


VoiceInteraction S.A. is a technology based company born in April 2008 as a spin-off from INESC-ID Lisboa. Its primary goal is to develop speech processing technologies. VoiceInteraction team is composed by researchers coming from INESC-ID Lisboa Spoken Language Systems Lab (L2F/INESC-ID).



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