在词频服从拟幂律分布并满足致密性的条件下,证明了Zipf律和Heaps律相互等价,并且讨论了词频序号为2时的临界行为。
In this paper, on condition that the word frequency follows the quasi power-law distribution and contents densification, it is proven that the Zipf’s law and Heaps law are equivalent, and critical behavior when γ=2 is also discussed.
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