Mobile context inference using two-layered Bayesian networks for smartphones

Young Seol Lee, Sung-Bae Cho

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Recently, mobile context inference becomes an important issue. Bayesian probabilistic model is one of the most popular probabilistic approaches for context inference. It efficiently represents and exploits the conditional independence of propositions. However, there are some limitations for probabilistic context inference in mobile devices. Mobile devices relatively lacks of sufficient memory. In this paper, we present a novel method for efficient Bayesian inference on a mobile phone. In order to overcome the constraints of the mobile environment, the method uses two-layered Bayesian networks with tree structure. In contrast to the conventional techniques, this method attempts to use probabilistic models with fixed tree structures and intermediate nodes. It can reduce the inference time by eliminating junction tree creation. To evaluate the performance of this method, an experiment is conducted with data collected over a month. The result shows the efficiency and effectiveness of the proposed method.

Original languageEnglish
Pages (from-to)4333-4345
Number of pages13
JournalExpert Systems with Applications
Volume40
Issue number11
DOIs
Publication statusPublished - 2013 Sep 1

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Smartphones
Bayesian networks
Mobile devices
Mobile phones
Data storage equipment
Experiments
Statistical Models

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Computer Science Applications
  • Artificial Intelligence

Cite this

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abstract = "Recently, mobile context inference becomes an important issue. Bayesian probabilistic model is one of the most popular probabilistic approaches for context inference. It efficiently represents and exploits the conditional independence of propositions. However, there are some limitations for probabilistic context inference in mobile devices. Mobile devices relatively lacks of sufficient memory. In this paper, we present a novel method for efficient Bayesian inference on a mobile phone. In order to overcome the constraints of the mobile environment, the method uses two-layered Bayesian networks with tree structure. In contrast to the conventional techniques, this method attempts to use probabilistic models with fixed tree structures and intermediate nodes. It can reduce the inference time by eliminating junction tree creation. To evaluate the performance of this method, an experiment is conducted with data collected over a month. The result shows the efficiency and effectiveness of the proposed method.",
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Mobile context inference using two-layered Bayesian networks for smartphones. / Lee, Young Seol; Cho, Sung-Bae.

In: Expert Systems with Applications, Vol. 40, No. 11, 01.09.2013, p. 4333-4345.

Research output: Contribution to journalArticle

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