Special track on information access and retrieval

The special Track on Information Access and Retrieval (IAR) was first organized within the ACM International Symposium on Applied Computing in 2002, to the main aim of the track is allowing researchers and practitioners to present and discuss their proposals and experiences in the middle of the theory-practice spectrum of Information Retrieval and Information Filtering. This year the special track is in its 18th edition in the context of SAC, and it includes four full papers (with an acceptance rate of 25%), and a poster paper. Each paper was peer reviewed by at least 3 members of the Program Committee (listed in these proceedings) to whom we express our greatest gratitude: their help has been invaluable for carrying out a high quality selection process. The full papers cover different hot research topics in information retrieval: recommender systems, music scores retrieval, Information Retrieval models.