Hierarchical Language Models for XML Component Retrieval

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Paul Ogilvie, Jamie Callan

Published: 2004, Last Modified: 12 Jan 2026INEX 2004EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Experiments using hierarchical language models for XML component retrieval are presented in this paper. The role of context is investigated through incorporation of the parent’s model. We find that context can improve the effectiveness of finding relevant components slightly. Additionally, biasing the results toward long components through the use of component priors improves exhaustivity but harms specificity, so care must be taken to find an appropriate trade-off.