Credibility Improves Topical Blog Post Retrieval Wouter Weerkamp author Maarten de Rijke author 2008-06 text Proceedings of ACL-08: HLT Johanna D Moore editor Simone Teufel editor James Allan editor Sadaoki Furui editor Association for Computational Linguistics Columbus, Ohio conference publication weerkamp-de-rijke-2008-credibility https://aclanthology.org/P08-1105/ 2008-06 923 931