This book constitutes the thoroughly refereed post-workshop proceedings of the 10th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2011, held in Saarbrücken, Germany, in December 2011.

Books and Social Search Track.- Overview of the INEX 2011 Books and Social Search Track.- The Importance of Document Ranking and User-Generated Content for Faceted Search and Book Suggestions.- RSLIS at INEX 2011: Social Book Search Track.- Using Page Breaks for Book Structuring.- Social Recommendation and External Resources for Book Search.- The University of Massachusetts Amherst’s Participation in the INEX 2011 Prove It Track.- The Book Structure Extraction Competition with the Resurgence Full Content Software at Caen University.- TOC Structure Extraction from OCR-ed Books.- OUC’s Participation in the 2011 INEX Book Track.- Data Centric Track.- Overview of the INEX 2011 Data-Centric Track.- Edit Distance for XML Information Retrieval: Some Experiments on the Datacentric Track of INEX 2011.- UPF at INEX 2011: Books and Social Search Track and Data-Centric Track.- University of Amsterdam Data Centric Ad Hoc and Faceted Search Runs .- BUAP: A Recursive Approach to the Data-Centric Track of INEX 2011.- RUC @ INEX 2011 Data-Centric Track.- MEXIR at INEX-2011.- Overview of the INEX 2011 Question Answering Track (QA@INEX).- A Hybrid QA System with Focused IR and Automatic Summarization for INEX 2011.- IRIT at INEX: Question Answering Task.- A Graph-Based Summarization System at QA@INEX Track 2011.- LIA at the INEX 2011 QA Track: Querying and Summarizing with XML.- Readability Measures for INEX 2011 Question-Answering Track.- Statistical Summarization at QA@INEX 2011 Track Using Cortex and Enertex Systems.- QA@INEX Track 2011: Question Expansion and Reformulation Using the REG Summarization System.- Relevance Feedback Track.- Overview of the INEX 2011 Relevance Feedback Track.- Snip!.- Snippet Retrieval Track.- Overview of the INEX 2011 Snippet Retrieval Track.- Focused Elements and Snippets.- RMIT at INEX 2011 Snippet Retrieval Track.- Topical Language Model for Snippet Retrieval.- JUFE at INEX 2011 Snippet Retrieval Track.- Indian School of Mines at INEX 2011Snippet Retrieval Task.- PKU at INEX 2011 XML Snippet Track.

This book constitutes the thoroughly refereed post-workshop proceedings of the 10th International Workshop of the Initiative for the Evaluation of XML Retrieval, INEX 2011, held in Saarbrücken, Germany, in December 2011.The 33 revised full papers presented were carefully reviewed and selected for presentation at the workshop from 36 submissions. The papers are organized in 5 research tracks  on book and social search, Xdata centric, question answering, relevance feedback, and snippet retrieval.