Sentence examples for verification difficult from inspiring English sources

The picture they paint is inconclusive, however, and restrictions on foreign reporting inside Syria made verification difficult.

"There are new forms of online behavior, norms and language that make analysis and verification difficult.

In this regard, Omand, Bartlett et al. [4] mention the issue of interpretation which concerns the fast changing language used in social media, but also aspects of irony or consciously spread rumors that generally cannot be identified by computers and can lead to misleading result: "There are new forms of online behavior, norms and language that make analysis and verification difficult.

It also makes enforcement and verification difficult.

For more information about Afghanistan's humanitarian appeal, visit www.unicef.org/appeals/afghanistan In Afghanistan, preventing children from enlisting in government security forces and armed groups is a challenge, as a lack of reliable birth records makes age verification difficult and a high rate of poverty drives youth to find steady pay.

Verification proved difficult.

And even if he doesn't touch the spent fuel, no one knows for sure where North Korea has been enriching uranium, making verification extremely difficult.

This makes the design and verification planning difficult.

The interactive game approach helps to cope with incompleteness and informal definition of UML models, which make strictly formal verification techniques difficult.

Thirdly, case verification is difficult and lengthy, given the dearth of reference laboratories.

The mechanism is elegant and appealing, but experimental verification is difficult because it requires not only identification of the different morphogens, but also their in vivo diffusion or cellular reaction constants, data which are very difficult to obtain.