Download Adaptive Parsing: Self-Extending Natural Language Interfaces by Jill Fain Lehman PDF

By Jill Fain Lehman

As the pc progressively automates human-oriented initiatives in a number of environ­ ments, the interface among pcs and the ever-wider inhabitants of human clients assumes steadily expanding significance. within the place of work setting, for example, clerical initiatives akin to rfile submitting and retrieval, and higher-level initiatives comparable to scheduling conferences, making plans journey itineraries, and generating files for booklet, are being in part or completely computerized. the variety of clients for workplace­ orientated software program comprises clerks, secretaries, and businesspersons, none of whom are predominantly computing device literate. an identical phenomenon is echoed within the manufacturing facility construction line, within the securities buying and selling ground, in govt organizations, in educa­ tional associations, or even in the house. The arcane command languages of convinced­ teryear have confirmed too excessive a barrier for gentle attractiveness of automated func­ tions into the office, regardless of how necessary those features should be. machine­ naive clients easily don't make an effort to profit intimidating and intricate laptop interfaces. so as to position the performance of modem desktops on the disposition of numerous person populations, a couple of diversified techniques were attempted, many assembly with an important degree of good fortune, to wit: specified classes to coach clients within the less complicated command languages (such as MS-DOS), designing point-and-click menu/graphics interfaces that require less consumer familiarization (illustrated so much in actual fact within the Apple Macintosh), and interacting with the consumer in his or her language of choice.

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Additional info for Adaptive Parsing: Self-Extending Natural Language Interfaces

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24 System Behavior in an Adaptive Environment Davidson and Kaplan [15,37] took a different view of single-word learning. They argued that it was unrealistic to assume a complete and unchanging lexicon for some types of databases. To aid interface users under these conditions, they used a semantic grammar to genemte all legal interpretations of the unknown word, then explored category assignments in order of the estimated cost of verification. 3). In Kaplan and Davidson's work, however, the only extensions to the lexicon that were permitted were new ground instances of specific known classes (for example, a new ship name or port city); the query language itself was fixed.

Certainly simple dele- 9The number of explanations produced increases as a function of both the deviation-level and the relative ambiguity of the constituents hypothesized to be present. Explanations at higher deviation-levels tend to be poorer because the recovery actions are largely knowledge-free. If they encoded more knowledge, more deviation could be tolerated successfully. Unfortunately, knowledge is not only power-every piece of knowledge built into a system is also an assumption the system may be unable to relax.

Initially, the grammar contains only the system form labelled SF. Using the general recovery actions, the experimenter equates the user forms (labelled with UP) as they appear. Note the transience of UPI and UF2 as well as the eventual reliance on the relatively terse SF and the terser user derivative (UF3). The tendency towards abbreviated forms is symptomatic of movement toward a virtual, user-specific command language. Forms SF: from

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