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摘要
In this paper we consider two basic questions regarding the query complexity of testing graph properties in the adjacency matrix model. The first question refers to the relation between adaptive and nonadaptive testers, whereas the second question refers to testability within complexity that is inversely proportional to the proximity parameter, denoted epsilon. The study of these questions reveals the importance of algorithmic design in this model. The highlights of our study are as follows: (a) A gap between the complexity of adaptive and nonadaptive testers. Specifically, there exists a natural graph property that can be tested using (O) over tilde(epsilon(-1)) adaptive queries but cannot be tested using o(epsilon(-3/2)) nonadaptive queries. (b) In contrast, there exist natural graph properties that can be tested using (O) over tilde(epsilon(-1)) nonadaptive queries, whereas Omega(epsilon(-1)) queries are required even in the adaptive case. We mention that the properties used in the foregoing conflicting results have a similar flavor, although they are of course different.
- 出版日期2011
