To cope with this issue, existing research suggests several different approaches, such as altering the training sample by up-sampling or down-sampling, i.e., balancing.
While several decomposition strategies have been proposed to address this issue, existing approaches rely on a DC approximation of a power system model and thus do not fully capture system's behavior.
However, there are several existing issues of smart materials, such as sensor size, signal inaccuracies, low noise to signal ratios and sensitivity limitations that need improvement.
There were several issues obstructing the new agreement, which included adding an age limit for rookies, toughening the existing drug-testing program and limiting the length of long-term contracts.
There were several issues.
Several issues are ripe for resolution.
The commission raised several issues.
On several issues, Republicans struck populist poses.
But his argument raises several issues.
Several issues arise from these.
