On compositional semantics
On compositional semantics
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论组合语义
DOI：
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发表时间：
1992
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通讯作者：
Wlodek Zadrozny
中科院分区：
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作者：
Wlodek Zadrozny
我们证明了一个定理表明，任何语义都可以编码为构图语义，这意味着，从本质上讲，组成性的标准定义是正式的。然后，我们表明，当一个人需要组成语义为“系统”（即含义函数不能是任意的，但必须属于某些类）时，人们可以很容易地区分组合性和非构成语义。我们还提供了一个简单的语法示例，该语法没有“系统的”作曲语义。这意味着可以根据他们是否可以具有组成语义来区分“好”和“坏”语法。结果，我们认为本文阐明了组成性的概念，并开放了对语法和NLU程序不同系统进行系统比较的可能性。
We prove a theorem stating that any semantics can be encoded as a compositional semantics, which means that, essentially, the standard definition of compositionality is formally vacuous. We then show that when one requires compositional semantics to be "systematic" (that is the meaning function cannot be arbitrary, but must belong to some class), one can easily distinguish between compositional and non-compositional semantics. We also present an example of a simple grammar for which there is no "systematic" compositional semantics. This implies that it is possible to distinguish "good" and "bad" grammars on the basis of whether they can have compositional semantics. As a result, we believe that the paper clarifies the concept of compositionality and opens a possibility of making systematic comparisons of different systems of grammars and NLU programs.