2011
DOI: 10.1007/978-3-642-20161-5_86
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Processing Queries in Session in a Quantum-Inspired IR Framework

Abstract: Abstract. In a search session, users tend to reformulate their queries, for instance because they want to generalise or specify them, or because they are undergoing a drift in their information need. This motivates to regard queries not in isolation, but within the session they are embedded in. In this poster, we propose an approach inspired by quantum mechanics to represent queries and their reformulations as density operators. Differently constructed densities can potentially be applied for different types o… Show more

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Cited by 7 publications
(7 citation statements)
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“…Our idea is inspired by the view of an IR system as analogous to a quantum system used in physics. In this section, we overview the mathematical formalism [34] behind the quantum-theoretic models [8,28] of IR. In contrast to set-based classical probability Theory, in quantum probabilities, the probabilistic space is geometrically defined, and its representation becomes an infinite set of angles and distances in a finite or infinite dimensional Hilbert Space [32] denoted by H. A vector space with complete inner product forms a Hilbert space.…”
Section: Mathematical Preliminariesmentioning
confidence: 99%
“…Our idea is inspired by the view of an IR system as analogous to a quantum system used in physics. In this section, we overview the mathematical formalism [34] behind the quantum-theoretic models [8,28] of IR. In contrast to set-based classical probability Theory, in quantum probabilities, the probabilistic space is geometrically defined, and its representation becomes an infinite set of angles and distances in a finite or infinite dimensional Hilbert Space [32] denoted by H. A vector space with complete inner product forms a Hilbert space.…”
Section: Mathematical Preliminariesmentioning
confidence: 99%
“…In [Frommholz et al 2011;Piwowarski and Lalmas 2009a], a general framework for query reformulation using Quantum probabilities is described. The queries are represented as density matrices in a term space and query reformulation updates the query density matrix, which can be used to detect change in user IN in a search session.…”
Section: User Interactionsmentioning
confidence: 99%
“…Projection Models [van Rijsbergen 2004], [Melucci 2005a], [Melucci 2005b], [Piwowarski and Lalmas 2009a], [Piwowarski et al 2008], [Piwowarski et al 2010a], [Piwowarski et al 2010c], [Piwowarski et al 2010b], [Caputo et al 2011], ] Quantum Language Models [Sordoni et al 2013b], [Xie et al 2015], [Zhang et al 2018d] [Hou and Song 2009], [Hou et al 2013], [Zhang et al 2018b], [Zhang et al 2018a], [Zhang et al 2018d] , [Blacoe et al 2013], [Blacoe 2015], [Basile and Tamburini 2017], [Li et al 2018a] Quantum-inspired Ranking [Zuccon et al 2009], , , Multimodal IR [Wang et al 2010a], [Kaliciak et al 2011], [Kaliciak et al 2013], [Gkoumas et al 2018], [Zhang et al 2018c], ] Quantum-inspired Representation Learning [Aerts and Czachor 2004], [Bruza and Cole 2005], [Sordoni et al 2013a], [Zuccon et al 2011], [Wittek et al 2014], ], [Jaiswal et al 2018, , , [Buccio et al 2018], User Interactions Projection Models [Melucci and White 2007], [Melucci 2008], [Piwowarski and Lalmas 2009a], [Frommholz et al 2011], , , [Wang et al 2017…”
Section: Representation and Rankingmentioning
confidence: 99%
“…Where IDF = log − +0.5 +0.5 , = 1 (1 − + ), 3 is between 7 and 1,000 (usually, qtf = 1 and 3 does not impact), qtf is the frequency of the term in the query.…”
Section: Best Match No 25mentioning
confidence: 99%