Natural Language Processing with ThoughtTreasure eBook Erik T Mueller
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ThoughtTreasure is a commonsense knowledge base and architecture for natural language processing. It uses multiple representations including logic, finite automata, grids, and scripts. The ThoughtTreasure architecture consists of the text agency, containing text agents for recognizing words, phrases, and names, and mechanisms for learning new words and inflections; the syntactic component, containing a syntactic parser, base rules, and filters; the semantic component, containing a semantic parser for producing a surface-level understanding of a sentence, a natural language generator, and an anaphoric parser for resolving anaphoric entities such as pronouns; the planning agency, containing planning agents for achieving goals on behalf of simulated actors; and the understanding agency, containing understanding agents for producing a more detailed understanding of a discourse.
Natural Language Processing with ThoughtTreasure eBook Erik T Mueller
ThoughtTreasure was a Natural Language application server, written in C, by the author of the book. The source code appears to be no longer available. It was developed from 1993 to 1999 and is no longer supported.The book is set up as a user manual and exercise book for the application. It presupposes a great deal of natural language knowledge on the part of the reader and makes very little effort to explain the concepts used.
One of the application's distinctive features is its compact, but harsh, lexicon syntax. It starts simple enough
=window/physical-object/window.z/fenêtre.Fy/
(The concept "window" is represented in English (z) by the word "window" and in French (y) by the word "fenêtre", which is feminine (F).)
but culminates in expressions like this, which require quite an effort to the untrained eye:
====appointment//have* an#D appointment#N with_ at_ to_Ï on_.@¹ôVz/|r1=human|r2=human|r3=location|r4=list|r5=time-range|
Erik T. Mueller has chosen a pragmatic approach to natural language processing in this work. He is quite explicit about that: "Much of ThoughtTreasure's code is ad hoc - there are many messy segments of code designed to cope with particular situations, rather than one general mechanism." The consequence of this, is that many problems are dealt with at a low level, that is of interest mainly to others only when they choose the same approach as Mueller. The book would have been much more useful if the author had taken more space to explain the concepts he uses. In stead, he just places references to other articles. The fact that the book contains many "pointers" is in itself a good thing, and inspires to read other works as well.
On the bright side, I think the reason why Mr. Mueller decided to write this book is that he wanted to share with us in his enthusiasm for natural language processing. To show off the possibilities. To give a taste of what a full grown AI application might look like. The application looks like a child in a candy store. Tasting many different techniques: grids to represent rooms, case frames, agent systems, planning, learning, (time based) reasoning, concept building, and even emotions. And because Mueller has actually built such a system, he can name some of the things you need to deal with. The book even contains a chapter called "unexpected results", which is meant as a bloopers movie.
The book had two effects on me. It made me jealous of the possibilities of the application. And it made me frustrated because I could not follow the techniques that Mueller tried to explain. So, to me, it wasn't very useful. But I do feel that in the history of natural language processing ThoughtTreasure is a milestone that should have its place.
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Natural Language Processing with ThoughtTreasure eBook Erik T Mueller Reviews
ThoughtTreasure was a Natural Language application server, written in C, by the author of the book. The source code appears to be no longer available. It was developed from 1993 to 1999 and is no longer supported.
The book is set up as a user manual and exercise book for the application. It presupposes a great deal of natural language knowledge on the part of the reader and makes very little effort to explain the concepts used.
One of the application's distinctive features is its compact, but harsh, lexicon syntax. It starts simple enough
=window/physical-object/window.z/fenêtre.Fy/
(The concept "window" is represented in English (z) by the word "window" and in French (y) by the word "fenêtre", which is feminine (F).)
but culminates in expressions like this, which require quite an effort to the untrained eye
====appointment//have* an#D appointment#N with_ at_ to_Ï on_.@¹ôVz/|r1=human|r2=human|r3=location|r4=list|r5=time-range|
Erik T. Mueller has chosen a pragmatic approach to natural language processing in this work. He is quite explicit about that "Much of ThoughtTreasure's code is ad hoc - there are many messy segments of code designed to cope with particular situations, rather than one general mechanism." The consequence of this, is that many problems are dealt with at a low level, that is of interest mainly to others only when they choose the same approach as Mueller. The book would have been much more useful if the author had taken more space to explain the concepts he uses. In stead, he just places references to other articles. The fact that the book contains many "pointers" is in itself a good thing, and inspires to read other works as well.
On the bright side, I think the reason why Mr. Mueller decided to write this book is that he wanted to share with us in his enthusiasm for natural language processing. To show off the possibilities. To give a taste of what a full grown AI application might look like. The application looks like a child in a candy store. Tasting many different techniques grids to represent rooms, case frames, agent systems, planning, learning, (time based) reasoning, concept building, and even emotions. And because Mueller has actually built such a system, he can name some of the things you need to deal with. The book even contains a chapter called "unexpected results", which is meant as a bloopers movie.
The book had two effects on me. It made me jealous of the possibilities of the application. And it made me frustrated because I could not follow the techniques that Mueller tried to explain. So, to me, it wasn't very useful. But I do feel that in the history of natural language processing ThoughtTreasure is a milestone that should have its place.
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