Publication Type
Conference Proceeding Article
Version
publishedVersion
Publication Date
8-2019
Abstract
Top-k queries are extensively used to retrieve the k most relevantoptions (e.g., products, services, accommodation alternatives, etc)based on a weighted scoring function that captures user preferences. In this paper, we take the viewpoint of a business owner whoplans to introduce a new option to the market, with a certain type ofclientele in mind. Given a target region in the consumer spectrum,we determine what attribute values the new option should have,so that it ranks among the top-k for any user in that region. Ourmethodology can also be used to improve an existing option, at theminimum modification cost, so that it ranks consistently high for anintended type of customers. This is the first work on competitiveoption placement where no distinct user(s) are targeted, but a general clientele type, i.e., a continuum of possible preferences. Herealso lies our main challenge (and contribution), i.e., dealing withthe interplay between two continuous spaces: the targeted regionin the preference spectrum, and the option domain (where the newoption will be placed). At the core of our methodology lies a noveland powerful interlinking between the two spaces. Our algorithmsoffer exact answers in practical response times, even for the largestof the standard benchmark datasets.
Discipline
Databases and Information Systems | Numerical Analysis and Scientific Computing
Research Areas
Data Science and Engineering
Publication
Proceedings of the VLDB Endowment: 45th VLDB 2019, Los Angeles, CA, August 26-30
First Page
1181
Last Page
1194
Identifier
10.14778/3339490.3339500
Publisher
VLDB Endowment
City or Country
Stanford, CA
Citation
TANG, Bo; MOURATIDIS, Kyriakos; YIU, Man Lung; and CHEN, Zhenyu.
Creating top ranking options in the continuous option and preference space. (2019). Proceedings of the VLDB Endowment: 45th VLDB 2019, Los Angeles, CA, August 26-30. 1181-1194.
Available at: https://ink.library.smu.edu.sg/sis_research/4431
Copyright Owner and License
Authors
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.
Additional URL
https://doi.org/10.14778/3339490.3339500
Included in
Databases and Information Systems Commons, Numerical Analysis and Scientific Computing Commons