Sciweavers

AIRS
2015
Springer
8 years 7 months ago
Oyster: A Tool for Fine-Grained Ontological Annotations in Free-Text
Oyster is a web-based annotation tool that allows users to annotate free-text with respect to concepts defined in formal knowledge resources such as large domain ontologies. The t...
Hamed Tayebikhorami, Alejandro Metke-Jimenez, Anth...
AIRS
2015
Springer
8 years 7 months ago
A Study of Collection-Based Features for Adapting the Balance Parameter in Pseudo Relevance Feedback
Pseudo-relevance feedback (PRF) is an effective technique to improve the ad-hoc retrieval performance. For PRF methods, how to optimize the balance parameter between the original ...
Ye Meng, Peng Zhang, Dawei Song, Yuexian Hou
AIRS
2015
Springer
8 years 7 months ago
A Query Expansion Approach Using Entity Distribution Based on Markov Random Fields
Abstract. The development of knowledge graph construction has prompted more and more commercial engines to improve the retrieval performance by using knowledge graphs as the basic ...
Rui Li, Linxue Hao, Xiaozhao Zhao, Peng Zhang, Daw...