Improving coreference resolutionwith automatically predicted prosodic information
Table 2: Nuclear accent presence
['Baseline', '46.11', '[EMPTY]']
Again, we report results that are all significantly better than the baseline. The improvement is largest when we apply the feature to all NPs, i.e. also including long, complex NPs. This is in line with the findings in the pilot study for long NPs. If we restrict ourselves to just nuclear accents, this feature will receive the value true for only a few of the short NPs that would otherwise have been assigned true in terms of general pitch accent presence. Therefore, nuclear pitch accents do not provide sufficient information for a majority of the short NPs. For long NPs, however, the presence of a nuclear accent is more meaningful.