next up previous contents
Next: Acknowledgements Up: No Title Previous: Completeness

Conclusion

We have presented a new control environment for processing computational semantics. By combining and extending the AI techniques known as constraint satisfaction, solution synthesis and branch-and-bound, we have reduced the search space from billions or more to thousands or less. We have argued that the search problems encountered in computational semantics fit nicely into the class of problems that this control paradigm handle well.

In the past, the utility of knowledge-based semantics has been limited, subject to arguments that it only works in ``toy'' environments. Recent efforts at increasing the size of knowledge bases, however, have created an imbalance with existing control techniques which are unable to handle the explosion of information. We believe that this methodology will enable such work. Furthermore, because this work is a generalization of a control strategy used for simpler binary constraints, we believe that it is applicable to a wide variety of real-life problems. We intend to test this control paradigm on problems outside NLP.



Steve Beale
Tue Oct 1 10:21:38 MDT 1996