1. Asymmetric Missing-data Problems: Overcoming the Lack of Negative Data in Preference Ranking

   • Aleksander Kołcz
   • Joshua Alspector

   OriginalPaper Pages: 5 - 40

2. Pooling for a Large-Scale Test Collection: An Analysis of the Search Results from the First NTCIR Workshop

   • Kazuko Kuriyama
   • Noriko Kando
   • Koji Eguchi

   OriginalPaper Pages: 41 - 59

3. Some Formal Analysis of Rocchio's Similarity-Based Relevance Feedback Algorithm

   • Zhixiang Chen
   • Binhai Zhu

   OriginalPaper Pages: 61 - 86

4. Hierarchical Text Categorization Using Neural Networks

   • Miguel E. Ruiz
   • Padmini Srinivasan

   OriginalPaper Pages: 87 - 118