简答题Complete the sentences usingcould, must, may, should, might, ought to, need to, can, have to. Make sure you use the right tense and don’t forget to use negative forms where necessary. 1) Perhaps the damage was caused by heat exposure. The damage _____________________________________________.(1) 2) We felt sure that the damage was caused by heat exposure. The damage _____________________________________________.(2) 3) No way was the damage caused by heat exposure. The damage _____________________________________________.(3) 4) We don’t expect heat exposure to cause any damage. Heat exposure ___________________________________________.(4) 5) It’s possible that the damage wasn’t caused by heat exposure. The damage _____________________________________________.(5)简答题Please rearrange the following sentences into a coherence paragraph of Conclusion. (1)We have demonstrated that under different assumptions and using different approximations we can derive the commonly used classifier combination schemes such as the product rule, sum rule, min rule, max rule, median rule, and majority voting. (2)The various classifier combination schemes were compared experimentally. (3)The problem of combining classifiers which use different representations of the patterns to be classified was studied. (4)To explain this empirical finding, we investigated the sensitivity of various schemes to estimation errors. (5) The sensitivity analysis has shown that the sum rule is most resilient to estimation errors and this may provide a plausible explanation for its superior performance. (6) We have developed a common theoretical framework for classifier combination and showed that many existing schemes can be considered as special cases of compound classification where all the pattern representations are used jointly to make a decision. (7)A surprising outcome of the comparative study was that the combination rule developed under the most restrictive assumptions — the sum rule — outperformed other classifier combinations schemes.