Sentence examples for a difficult concern for from inspiring English sources

The representation of boundaries in imbalanced data sets is a difficult concern for learning algorithms.

Play had finished on all greens by 3.52pm, four hours earlier than usual, and soon after four o'clock the heavens opened with the 72-man field out of harm's way after what had been a difficult day for all concerned.

"This has been a difficult time for the team and also obviously for the individuals concerned.

It comes a difficult time for Brazil, with the country facing water shortages and concerns over the economy.

"It was a difficult period for me.

"It's a difficult decision for Levy.

This is a difficult problem for retributivists.

"It's a difficult game for Crewe.

It is a difficult job for him".

"It's a difficult one for me.

That's a difficult task for Beijing.