| W99-0612 | Second , they support a natural | hierarchical smoothing procedure | for distributional class statistics |
| W02-2007 | representations and support a natural | hierarchical smoothing procedure | for distributional class statistics |
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| W99-0612 | Second , they support a natural | hierarchical smoothing procedure | for distributional class statistics |
| W02-2007 | representations and support a natural | hierarchical smoothing procedure | for distributional class statistics |
