Situated Preferences and Preference Repositories for Personalized Database Applications

Holland, Stefan; Kießling, Werner

doi:10.1007/978-3-540-30464-7_39

Cited by 34 publications

(32 citation statements)

References 17 publications

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“…Most of them are surveyed in 2,3 . In the approach to contextual preferences proposed in 8 , a context state is represented as a situation described by four aspects: (i) Timestamp that denotes the date and time of situations; (ii) Location which describes the current position; (iii) Personal influences like physical state; and (iv) Surrounding influences like weather condition or accompanying people. Situations are uniquely linked through an n:m relationship with preferences.…”

Section: Related Workmentioning

confidence: 99%

See 1 more Smart Citation

A Fuzzy-Rule-Based Model for Handling Contextual Preference Queries

Hadjali¹,

Mokhtari²,

Pivert³

2012

IJCIS

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Users' preferences have traditionally been exploited in query personalization to better serve their information needs. Most of the time, user preferences depend on context, that is, they may have different values depending on the situation of the user. In this paper, we propose a fuzzy-rule-based model for the representation of contextual preferences in a database querying framework. We discuss the augmentation of a query with preferences deduced from information regarding the current context of the user. To this end, we make use of an appropriate inference pattern, called generalized modus ponens, able to deal with data and knowledge when they are described in a fuzzy way.

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Section: Related Workmentioning

confidence: 99%

“…Contextual preferences (i.e., preferences that depend on context) have recently attracted considerable attention in many research fields 2,3,4,5,6,7,8,9 . In the database field, one of the most interesting works about contextual preferences is that by Stefanidis et al 9,10,11 .…”

Section: Introductionmentioning

confidence: 99%

A Fuzzy-Rule-Based Model for Handling Contextual Preference Queries

Hadjali¹,

Mokhtari²,

Pivert³

2012

IJCIS

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“…A knowledge-based context-aware query preference model is proposed in [33], where context parameters are treated as normal attributes of relations. Contextual preferences, called situated preferences, are also discussed in [34]. In this approach, a context state is represented as a situation.…”

Section: Related Workmentioning

confidence: 99%

Managing contextual preferences

Stefanidis¹,

Pitoura²,

Vassiliadis³

2011

Information Systems

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a b s t r a c tTo handle the overwhelming amount of information currently available, personalization systems allow users to specify through preferences which pieces of data interest them. Most often, users have different preferences depending on context. In this paper, we introduce a model for expressing such contextual preferences. Context is modeled using a set of hierarchical attributes, thus allowing context specification at various levels of detail. We formulate the context resolution problem as the problem of selecting appropriate preferences based on context for personalizing a query. We also propose algorithms for context resolution based on data structures that index preferences by exploiting the hierarchical nature of the context attributes. Finally, we evaluate our approach from two perspectives: usability and performance. Usability evaluates the overheads imposed on users for specifying context-dependent preferences, as well as their satisfaction from the quality of the results. Our performance results focus on the context resolution using the proposed indexes.

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“…Contextual preferences, called situated preferences, are introduced in [1]. Situations (i.e., context states) are uniquely linked through an N:M relationship with preferences.…”

Section: Related Workmentioning

confidence: 99%