• Text to Speech Systems:
  • AT&T Natural Voices doing text to speech
  • IBM's text to speech system. There's also a good Scientific American article that describes the text to speech problem in general and the IBM approach in particular.
• Spoken Dialogue Systems:
  • The American Airlines automated reservation system: Dial 800-433-7300. Choose 2, then 1 from the menu.
  • AT&T Natural Voices engaging in a dialogue: Dial 877-741-4321.
  • CMU's Sphinx system
  • MIT's Jupiter system for weather predictions: Dial 888-573-8255. You may also want to read a description of the Jupiter system
  • MIT's Mercury system for flight reservations: Dial 877-648-8255. You may also want to read a description of the Mercury system.
  • Other demonstration systems from the MIT speech group
• Text Dialogue Systems:
  • Eliza, a really dumb conversational agent. The first version of Eliza was written by Joe Weizenbaum in 1966.
  • BRIAN is a computer program that thinks it's an 18 year old college student. It won 3rd place in the 1998 Loebner competition.
  • Elbot, a good example of a modern conversational bot.
  • Alice, another modern bot.
  • HAL, another one.
  • The Personality Forge lets you create your own Eliza like characters and chat with the ones others have built.
  • Ask Jeeves tries to match your questions against relevant web pages. For a hilarious look at Jeeves' limitations, take a look at an example interaction with it.
  • AAAI's Chatterbots list can point you to more chatterbots that you might find interesting.
• Text Retrieval Techniques:
  • Latent Semantic Indexing
• Text Generation Systems:
  • Columbia Newsblaster
• Machine Translation Systems:
  • The Systran MT system is accessible in two ways: The Systran site or via Alta Vista's Babel Fish system.
  • Check out Shtick's uses of Babel Fish for some very funny examples of MT. They translated English sentences into another language and then back to "English".
  • Google's language tools.
  • Smart Link Corporation. Click on the Online Translation button near the top of the page.
  • Intertran
  • Links to many different MT systems.

• Most frequent 10000 words in English derived from a news wire data set and reported by Kevin Knight.

• Latent semantic indexing

NLP Tool Sets

• PennTools
• Dan Melamed's Software Page (see the reference in PennTools) 
• Software Tools in NLP
• CMU Artificial Intelligence Repository
• Stanford NLP Tools
• W3C Corpus Linguistics
• Columbia NLP Tools (pragmatics)

• Web Based Chart Parser
  
• Charniak's Parser
• Collin's Parser

• The NATO phonetic alphabet
• FrameNet
• WordNet

• Stanford JavaNLP Project Home Page
  

• NLP in Stanford (with links to the past final projects)  final projects in 2002  2003

• My "Introduction to NLP Tools" slides (you can find the links to those resources mentioned)
• Resources in CS public machines:
• /projects/nlp
• /projects/cs378nlp