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'''Olympus''' is an architecture for spoken dialog system created at Carnegie Mellon University. It is mainly designed to help researchers in conversational agents implement and test their ideas on full systems, without having to build them from scratch.

==Overview==

{{main|Overview}}

The Olympus architecture {{Harv|Bohus|Raux|Harris|Eskenazi|2007}} incorporates a number of modules developed at CMU in past and current spoken dialogue systems research projects. Dialogue management is handled by [[RavenClaw]] {{Harv|Bohus|Rudnicky|2009}}, a task-independent dialogue engine based on the AGENDA dialog manager {{Harv|Wu|Rudnicky|1999}} first introduced as part of the CMU Communicator system. Low-level interaction management (e.g. exact timing of start and end of utterances, handling of interruptions, etc) is performed by the [[Apollo]] interaction manager {{Harv|Raux|Eskenazi|2007}}. For [[MultiDecoder|speech recognition]], Olympus currently supports engines from the [http://cmusphinx.sourceforge.net/html/cmusphinx.php CMU Sphinx family] (Sphinx 2, Sphinx 3, PocketSphinx), and more work is being done to incorporate other engines as well. Natural language understanding is done by [[Phoenix]] {{Harv|Ward|Issar|1994}}, a robust parser based on CFG-like grammars. Natural language generation uses the [[Rosetta]] template-based generation system, while [[Kalliope]], the synthesis interface currently allows the use of [[wikipedia:Speech_Application_Programming_Interface|SAPI 5]]-compliant TTS engines, [http://www.cstr.ed.ac.uk/projects/festival Festival] and the proprietary engine [http://cepstral.com Cepstral Swift]. The communication between the different modules is handled by the [[wikipedia:MIT|MIT]]/[[wikipedia:MITRE|MITRE]] [http://communicator.sourceforge.net/sites/MITRE/distributions/GalaxyCommunicator/docs/manual/index.html Galaxy Communicator] architecture.

Funding for the development of Olympus and the systems that is based on has been provided by a number of sponsors, including the Defense Advanced Research Projects Agency for [http://www.speech.cs.cmu.edu/Communicator CMU Communicator] and CALO, the Office of Naval Research for LARRI, and from the National Science Foundation for the [http://www.cmuletsgo.org Let's Go] project (grants number 0208835 and 0741773). [http://www.boeing.com/phantom/math_ct/iis.html The Boeing Corporation] has in part supported the development of Olympus through the [http://www.cs.cmu.edu/~treasurehunt/ Treasure Hunt] project.

==Download==

{{main|Download}}

The '''Olympus''' system and some example applications are available under an open source [[Download#License|license]]. '''Olympus''' may be accessed via a [http://subversion.tigris.org subversion] repository.

==Documentation==

{{main|Documentation}}

We are currently working on writing serious documentation for Olympus. Some of it is already (at least partially) available such as a [[Documentation#Step-by-step tutorial|tutorial]] and some [[Documentation#Reference|reference pages]]. We will post announcements here and on the distribution mailing list as more of it gets completed.

==Questions and Problems==

For any additional information, as well as specific questions, send email to [mailto:olympus-developers@@cs.cmu.edu the developers mailing list] (<tt>olympus-developers@@cs.cmu.edu</tt>).

==Authors==

Many many people have contributed to Olympus over the years (including prior to its existence...). The main contributors are:
* [http://research.microsoft.com/~dbohus Dan Bohus]
* [http://www.cs.cmu.edu/~antoine Antoine Raux]
* [http://www.cs.cmu.edu/~tkharris Thomas K. Harris]
* [http://www.cs.cmu.edu/~dhuggins David Huggins-Daines]

Other (sometimes significant) contributions have been made by:

* [http://www.cs.cmu.edu/~awb Alan W Black]
* [http://www.cs.cmu.edu/~max Maxine Eskenazi]
* Andrew Hoskins
* Ben Frisch
* [http://www.cs.cmu.edu/~scottj Scott Judy]
* [http://www.cs.cmu.edu/~blangner Brian Langner]
* [http://www.cs.cmu.edu/~mrmarge Matthew Marge]
* [http://udhyakumar.tripod.com Udhyakumar Nallasamy]
* [http://www.cs.cmu.edu/~air Alexander I. Rudnicky]
* [http://www.cs.cmu.edu/~jshewan Jahanzeb Sherwani]
* [http://www.cs.sunysb.edu/~sveta Svetlana Stenchikova]
* [http://www.cs.cmu.edu/~yitao Yitao Sun]

==Systems==

{| class="dantable"
|-
! Name !! Description !! Developers !! Phone # 
|- 
| [http://www.cs.cmu.edu/~dbohus/ravenclaw-olympus/roomline.html RoomLine] || Provides support for conference room scheduling and reservation within the School of Computer Science at Carnegie Mellon University || Dan Bohus || N/A
|- 
| [http://www.speech.cs.cmu.edu/letsgo/ Let's Go! Bus Information System] || Provides access to bus route information in the greater Pittsburgh area || Antoine Raux, Dan Bohus, Brian Langner, Alan Black, Maxine Eskenazi || 412-268-3526
|-
| [http://wiki.speech.cs.cmu.edu/teamtalk TeamTalk] || Spoken language command-and-control interface to a team of robots || June Sison, Satanjeev Banerjee, Thomas Harris, Matthew Marge, S.P.Kishore, Kerry Bodine, Dan Bohus || N/A
|-
| [http://www.conquest-dialog.org/ ConQuest] || Telephone-based system that provides conference schedule information (deployed during Interspeech 2006 and IJCAI 2007) || Rohit Kumar, Dan Bohus, Gopala Krishna, Venkatesh Keri, Sergio Grau Puerto, Stefanie Tomko, Antoine Raux || N/A
|-
| [http://www.cs.cmu.edu/~dbohus/ravenclaw-olympus/meetingline.html MeetingLine] || Telephone-based system that provides access to recorded meeting information. || Dan Bohus, Satanjeev Banerjee || N/A
|-
| [http://www.cs.cmu.edu/~dbohus/ravenclaw-olympus/ipa.html Intelligent Procedure Assistant] || Multi-modal spoken dialogue system aimed at providing guidance and support to the astronauts on the ISS during the execution of procedural tasks and checklists || RIALIST group/NASA Ames, Greg Aist, Dan Bohus || N/A
|-
| [http://www.cs.cmu.edu/~dbohus/ravenclaw-olympus/larri.html LARRI] || Multi-modal system that provides assistance to F18 aircraft personnel during the execution of maintenance tasks || Dan Bohus, Yitao Sun, Kayur Patel, Ananlada Chotimongkol || N/A
|-
| [http://www.cs.cmu.edu/~dbohus/ravenclaw-olympus/sublime.html Sublime] || PDA-based personal information management system. || Jahanzeb Sherwani || N/A
|-
| [http://www.cs.cmu.edu/~dbohus/ravenclaw-olympus/vera.html Vera] || Telephone-based taskable agent that can be instructed to deliver messages to a third party and make wake-up calls. || Ulas Bardak, Scott Judy, Vasco Pedro, Tal Blum, Jeongwoo Ko, Ryosuke Miyata || N/A
|-
| [http://www.cs.cmu.edu/~dbohus/ravenclaw-olympus/madeleine.html Madeleine] || Written language (text I/O) spoken dialog system for medical diagnosis (toy domain) || Dan Bohus || N/A
|}

==Development==

*[[Development News]]
*[[Roadmap]]
*[https://mailman.srv.cs.cmu.edu/mailman/listinfo/olympus-developers/ Join the mailing list] or view the [http://mailman.srv.cs.cmu.edu/pipermail/olympus-developers/ mailing list archives].

==References==

{{Citation
  |last1=Bohus|first1=Dan
  |last2=Rudnicky|first2=Alexander I.
  |title=[http://www.sciencedirect.com/science/article/B6WCW-4TVJ3KG-1/2/d6bfd64173650f150219cf4a43a51a66 The RavenClaw dialog management framework: Architecture and systems]
  |periodical=Computer Speech & Language
  |year=2009}}

{{Citation
  |last1=Bohus|first1=Dan
  |last2=Rudnicky|first2=Alexander I.
  |title=[http://research.microsoft.com/~dbohus/docs/ravenclaw.ps RavenClaw: Dialog Management Using Hierarchical Task Decomposition and an Expectation Agenda]
  |periodical=Eurospeech 2003
  |year=2003}}

{{Citation
  |last1=Bohus|first1=Dan
  |last2=Raux|first2=Antoine
  |last3=Harris|first3=Thomas K.
  |last4=Eskenazi|first4=Maxine
  |last5=Rudnicky|first5=Alexander I.
  |title=[[Media:olympus-final.pdf|Olympus: an open-source framework for conversational spoken language interface research]]
  |periodical=Bridging the Gap: Academic and Industrial Research in Dialog Technology workshop at HLT/NAACL 2007
  |year=2007}}

{{Citation
  |last1=Raux|first1=Antoine
  |last2=Eskenazi|first2=Maxine
  |title=[http://www.cs.cmu.edu/~antoine/papers/asru2007_rauxeskenazi.pdf A Multi-Layer Architecture for Semi-Synchronous Event-Driven Dialogue Management]
  |periodical=IEEE Automatic Speech Recognition and Understanding Workshop
  |year=2007}}

{{Citation
  |last1=Rudnicky|First1=Alexander I. 
  |last2=Xu|first2=Wei 
  |title=[http://www.speech.cs.cmu.edu/Communicator/papers/agenda.pdf An agenda-based dialog management architecture for spoken language systems] 
  |periodical=IEEE ASRU Workshop
  |year=December 1999, p. I-337
}}

{{Citation
  |last1=Ward|first1=Wayne
  |last2=Issar|first2=Sunil
  |title=Recent improvements in the CMU spoken language understanding system
  |periodical=ARPA Human Language Technology Workshop
  |year=1994}}
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