Before revision:  In contrast to the traditional framing analysis, which has been constrained by a small number of manually annotated general frames, our unsupervised approach provides much more detailed insights , by considering a host of semantic axes.
After revision:  In contrast to the traditional framing analysis, which tends to be constrained by a small number of manually annotated general frames, our unsupervised approach provides much more detailed insights , by considering a host of semantic axes.