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MINING SOCIAL NETWORKS FOR LOCAL SEARCH AND LOCATION-BASED RECOMMENDER SYSTEMS 
A special issue of Personal and Ubiquitous Computing

Paper Submission Deadline: June 18, 2018 (NEW - EXTENDED)


OBJECTIVES AND TOPICS 
+++++++++++++ 
Location-based services (LBSs) denote software-level services that use location
data in order to provide meaningful content to users or other services. The
proliferation of smartphones and wearable devices has increased the availability
of large amounts of spatio-temporal data (e.g., geolocation, motion and
environmental sensors) opens new opportunities and raises challenges as regards
the automatic discovery and interpretation of data in pervasive environments.
For instance, context-aware recommender systems (CARS) aggregate situational and
environmental information about people, places and activities to satisfy
immediate needs and offer enriched, situation-aware content and experiences.
Popular applications are tourist tour planning and music recommender systems.

While contextual factors quickly became the key of success of these pervasive
applications, information related to user interests and preferences as well as
social signals have not yet been adequately capitalized. The massive adoption of
social applications, including social network services (e.g. Facebook and
Twitter), collaborative tagging systems (e.g. Flickr and Delicious) and online
communities (e.g. Foursquare and Yelp) gathers a wealth of social interactions
between users, or between users and shared resources (e.g., points of interest,
movies). Social local search and recommendation often refers to the search and
recommendation paradigms affected by explicit or inferred social signals. The
former are identified in the user's personal circle of friends, relatives or
colleagues (egocentric network); the latter arise from groups of users that
share common interests and behaviors (sociocentric network), even if no explicit
ties bind them. Within this context, techniques employed for data and text
mining, social network analysis and community detection, sentiment analysis and
opinion mining have the chance to generate more accurate recommendations and
personalized services. For instance, they can help us understand more of users’
collective behavior by clustering similar users w.r.t. their interests,
preferences and activities; or by recognizing knowledge experts, namely, users
that are generally more capable than others of finding out relevant content.

The aim of this special issue is to explore recent advances in Local search (LS)
and location-based recommender systems (LRS) focusing on the value, impact and
implications of the analysis of social signals to alleviate information and
interaction overload by filtering the most attractive and relevant content. The
special issue solicits original research contributions from academia and
industry in the form of theoretical foundations, experimental and methodological
developments, comparative analyses, descriptive surveys, experiments and case
studies in the field.


Potential topics include, but are not limited to:

- Social network analysis and mining for LS and LRS
- Mining and modeling groups and communities for LS and LRS
- Addressing the cold-start problem in LS and LRS by leveraging social signals
- Temporal analysis of social networks for search and recommendation
- Extraction of contextual signals from user-generated content on social networks
- Opinion mining and sentiment analysis of user-generated content in LS and LRS
- Leveraging social signals for cross-domain search and recommendation 
- Group recommendation in LRS   
- Novel content-based and collaborative filtering approaches for social LS and LRS 
- Personality traits and factors in LS and LRS
- Trust, reputation and influence in LS and LRS 
- Explanation of recommendations for LS and LRS 
- Architectures for supporting large streams of socialdata & realtime applications
- Evaluation methods and datasets for social LS and LRS 
- Beyond accuracy: novelty, diversity, and serendipity of result sets
- Linked open data and LS and LRS
- Novel user interfaces for social LS and LRS
- Emerging applications that exploit social signals in LBS
- Security and privacy issues


GUEST EDITORS

- Fabio Gasparetti, Roma Tre University - Rome, Italy 
- Damianos Gavalas, University of the Aegean - Hermoupolis, Syros, Greece 
- Sergio Ilarri, University of Zaragoza - Zaragoza, Spain 
- Francesco Ricci, Free University of Bozen-Bolzano - Bozen-Bolzano, Italy 
- Zhiwen Yu, Northwestern Polytechnical University - Xi'an, Shaanxi, China



IMPORTANT DATES

Manuscript submission deadline: 18 June 2018 (extended)
First round review notification: 20 August 2018 
Revised manuscript submission deadline: 30 September 2018 
Final decision notification: 31 October 2018 
Expected publication (tentative): First quarter 2019

To submit a manuscript, the authors are required to follow the journal guidelines 
for submissions. Each submission will undergo a peer review process.
Manuscripts should be submitted online: https://urldefense.proofpoint.com/v2/url?u=http-3A__www.springer.com_computer_hci_journal_779&d=DwIFaQ&c=pZJPUDQ3SB9JplYbifm4nt2lEVG5pWx2KikqINpWlZM&r=uXI5O6HThk1ULkPyaT6h2Ws3RKNKSY__GQ4DuS9UHhs&m=xQSco85v31hfxwWwoMIpSrv-pXmc5rrUB3y_M3SfBpY&s=z-OwwKNO9d-fP7ayse4EYa_Ykr5MaRMYGBMtLdFG5dU&e= 
Article type: "S.I.: Mining Social Network for Local search”

For enquiries please contact one of the guest editors.


ABOUT THIS JOURNAL

Personal and Ubiquitous Computing (Springer) is a peer-reviewed
multidisciplinary journal for researchers and educators who wish to understand
the implications of ubiquitous computing technologies and services. 
The Impact Factor for the journal is 2.395 according to the 
2016 Journal Citation Reports released by Thomson Reuters. 

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