The Open UniversitySkip to content

An adaptive contextual quantum language model

Li, Jingfei; Zhang, Peng; Song, Dawei and Hou, Yuexian (2016). An adaptive contextual quantum language model. Physica A: Statistical Mechanics and its Applications, 456 pp. 51–67.

Full text available as:
PDF (Accepted Manuscript) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader
Download (937kB) | Preview
DOI (Digital Object Identifier) Link:
Google Scholar: Look up in Google Scholar


User interactions in search system represent a rich source of implicit knowledge about the user’s cognitive state and information need that continuously evolves over time. Despite of massive efforts that have been made to exploiting and incorporating this implicit knowledge in information retrieval, it is still a challenge to effectively capture the term dependencies and the user’s dynamic information need (reflected by query modifications) in the context of user interaction. To tackle these issues, motivated by the recent Quantum Language Model (QLM), we develop a QLM based retrieval model for session search, which naturally incorporates the complex term dependencies occurring in user’s historical queries and clicked documents with density matrices. In order to capture the dynamic information within users’ search session, we propose a density matrix transformation framework and further develop an adaptive QLM ranking model. Extensive comparative experiments show the effectiveness of our session quantum language models.

Item Type: Journal Item
Copyright Holders: 2016 Elsevier
ISSN: 0378-4371
Project Funding Details:
Funded Project NameProject IDFunding Body
Key Basic Research Project, 973 Program2013CB329304Chinese National Program
Key Basic Research Project, 973 Program2014CB744604Chinese National Program
Chinese 863 Program2015AA015403Not Set
Not Set61272265Natural Science Foundation of China
Not Set61402324Natural Science Foundation of China
Tianjin Research Program of Application Foundation and Advanced Technology15JCQNJC41700Not Set
Keywords: Quantum language model; Density matrix transformation; Session search; Query change information
Academic Unit/School: Faculty of Science, Technology, Engineering and Mathematics (STEM) > Computing and Communications
Faculty of Science, Technology, Engineering and Mathematics (STEM)
Item ID: 45876
Depositing User: Dawei Song
Date Deposited: 29 Mar 2016 14:54
Last Modified: 25 May 2019 19:39
Share this page:


Altmetrics from Altmetric

Citations from Dimensions

Download history for this item

These details should be considered as only a guide to the number of downloads performed manually. Algorithmic methods have been applied in an attempt to remove automated downloads from the displayed statistics but no guarantee can be made as to the accuracy of the figures.

Actions (login may be required)

Policies | Disclaimer

© The Open University   contact the OU