Sentence examples for is difficult to denote from inspiring English sources

It is difficult to denote the spatial frequency by specific values of ω c. Figure 10 The relationship between the ROC area and the weight ω c. Results on (a) the BRUCE dataset, (b) the MIT-1003 dandset, and (c) the DOVES dataset.

However, there are not many direct lines linking microRNA and disease; therefore, it is difficult to denote the microRNA-disease association through the adjacency matrix A. Thus, we counted the number of walks of different lengths, which link microRNA node i and disease node j to signify the association between microRNA and disease.

Vigilance is difficult to sustain.

It is difficult to watch.

That is difficult to prove.

This is difficult to deny.

This is difficult to imagine.

It is difficult to say.

It is difficult to understand".

It is difficult to disagree.

Bone is difficult to recreate.