• B. Piwowarski, M. Amini, and M. Lalmas, “On using a Quantum Physics formalism for Multi-document Summarisation,” {Journal of the American Society for Information Science and Technology}.
  [Bibtex]

   @Article{Piwowarski2011OnUsing, author = {Piwowarski, Benjamin and Amini, Massih-Reza and Lalmas, Mounia}, title = {{On using a Quantum Physics formalism for Multi-document Summarisation}}, journal = {{Journal of the American Society for Information Science and Technology}}, note = {accepted for publication} }

It will be hopefully be followed by a paper about the quantum information framework (QIA) in all its generality (along with the code for computing “kernel quantum probabilities”).

1. the first time was done by K. van Rijsbergen for the vectorial models

The first one, a poster in ECIR 2011, deals with how to cope with the representation of the information need when the user reformulates the query and propose some heuristics (no evaluation yet):

• I. Frommholz, B. Piwowarski, M. Lalmas, and K. van Rijsbergen, “Processing queries in session in a quantum-inspired ir framework,” in Proceedings of ECIR 2011, 2011.
  [Bibtex]

   @inproceedings{Frommholz2011Processing, Author = {Ingo Frommholz and Benjamin Piwowarski and Mounia Lalmas and Keith van Rijsbergen}, Booktitle = {Proceedings of {ECIR} 2011}, Date-Added = {2011-01-03 16:56:38 +0000}, Date-Modified = {2011-04-11 13:31:23 +0100}, Month = {March}, Note = {Poster}, Title = {Processing Queries in Session in a Quantum-inspired IR Framework}, Year = {2011}}

The second one, a paper in the Italian IR 2011 workshop presents the algebra for information need that can be used to build structured query representations. The algebra is based on quantum operators that operates on so-called “information need aspects”. In the paper, we propose to use computational linguistics tools (segmentation, dependency parsing) in order to build automatically an algebraic repreesentation of the topic at hand.

• A. Caputo, B. Piwowarski, and M. Lalmas, “A query algebra for quantum information retrieval,” in Proceedings of the 2nd italian information retrieval workshop, 2011.
  [Bibtex]

   @inproceedings{Caputo2011QueryAlgebra, Author = {Annalina Caputo and Benjamin Piwowarski and Mounia Lalmas}, Booktitle = {Proceedings of the 2nd Italian Information Retrieval Workshop}, Date-Added = {2011-01-03 16:59:26 +0000}, Date-Modified = {2011-04-11 13:31:25 +0100}, Month = {January}, Title = {A Query Algebra for Quantum Information Retrieval}, Year = {2011}}

Abtract: The probabilistic formalism of quantum physics is said to provide a sound basis for building a principled information retrieval framework. Such a framework can be based on the notion of information need spaces where events, such as document relevance or observed user interactions, correspond to subspaces. As in quantum theory, a probability distribution over these subspaces is defined through weighted sets of state vectors (density operators), and used to represent the current view of the retrieval system on the user information need. Tensor spaces can be used to capture different aspects of information needs. Our evaluation shows that the framework can lead to acceptable performance in an ad hoc retrieval task. Going beyond this, we discuss the potential of the framework for three active challenges in information retrieval, namely, interaction, novelty and diversity.

• B. Piwowarski, I. Frommholz, M. Lalmas, and K. van Rijsbergen, “What can quantum theory bring to IR?,” in Cikm’10: proceedings of the nineteenth acm conference on conference on information and knowledge management, 2010.
  [Bibtex]

   @inproceedings{Piwowarski2010What-Quantum, Author = {Benjamin Piwowarski and Ingo Frommholz and Mounia Lalmas and Keith van Rijsbergen}, Booktitle = {CIKM'10: Proceedings of the nineteenth ACM conference on Conference on information and knowledge management}, Crossref = {CIKM2010}, Date-Added = {2010-07-19 09:20:38 +0200}, Date-Modified = {2011-04-11 13:31:22 +0100}, Doi = {10.1145/1871437.1871450}, Editor = {Huang, Jimmy and Koudas, Nick and Jones, Gareth and Wu, Xindong and Collins-Thompson, Kevyn and An, Aijun}, Location = {Toronto, Canada}, Publisher = {{ACM}}, Short-Booktitle = {{CIKM}}, Short-Title = {{CIKM}}, Title = {What can Quantum Theory bring to {IR}?}, Type = {International Conference}, Year = {2010}}

• I. Frommholz, B. Larsen, B. Piwowarski, M. Lalmas, P. Ingwersen, and K. van Rijsbergen, “Supporting polyrepresentation in a quantum-inspired geometrical retrieval framework,” in Proceedings of the 3rd iiiX symposium, 2010.
  [Bibtex]

   @inproceedings{Frommholz2010Supporting-Polyrepresentation, Author = {Ingo Frommholz and Birger Larsen and Benjamin Piwowarski and Mounia Lalmas and Peter Ingwersen and Keith van Rijsbergen}, Booktitle = {Proceedings of the 3rd {iiiX} symposium}, Date-Added = {2010-05-30 10:46:21 +0100}, Date-Modified = {2011-04-11 13:31:24 +0100}, Month = {aug}, Title = {Supporting Polyrepresentation in a Quantum-inspired Geometrical Retrieval Framework}, Type = {International Conference}, Year = {2010}}

This paper has been nominated for the best paper award!