7,519 research outputs found
Benchmarking the Privacy-Preserving People Search
People search is an important topic in information retrieval. Many previous
studies on this topic employed social networks to boost search performance by
incorporating either local network features (e.g. the common connections
between the querying user and candidates in social networks), or global network
features (e.g. the PageRank), or both. However, the available social network
information can be restricted because of the privacy settings of involved
users, which in turn would affect the performance of people search. Therefore,
in this paper, we focus on the privacy issues in people search. We propose
simulating different privacy settings with a public social network due to the
unavailability of privacy-concerned networks. Our study examines the influences
of privacy concerns on the local and global network features, and their impacts
on the performance of people search. Our results show that: 1) the privacy
concerns of different people in the networks have different influences. People
with higher association (i.e. higher degree in a network) have much greater
impacts on the performance of people search; 2) local network features are more
sensitive to the privacy concerns, especially when such concerns come from high
association peoples in the network who are also related to the querying user.
As the first study on this topic, we hope to generate further discussions on
these issues.Comment: 4 pages, 5 figure
ISR effects for resonant Higgs production at future lepton colliders
We study the effects of the initial state radiation on the -channel Higgs
boson resonant production at and colliders by convoluting
with the beam energy spread profile of the collider and the Breit-Wigner
resonance profile of the signal. We assess their impact on both the Higgs
signal and SM backgrounds for the leading decay channels . Our study improves the existing analyses of the proposed future
resonant Higgs factories and provides further guidance for the accelerator
designs with respect to the physical goals.Comment: 15 pages, 3 figures and 3 table
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