6,081,702 research outputs found
Intersection Information based on Common Randomness
The introduction of the partial information decomposition generated a flurry
of proposals for defining an intersection information that quantifies how much
of "the same information" two or more random variables specify about a target
random variable. As of yet, none is wholly satisfactory. A palatable measure of
intersection information would provide a principled way to quantify slippery
concepts, such as synergy. Here, we introduce an intersection information
measure based on the G\'acs-K\"orner common random variable that is the first
to satisfy the coveted target monotonicity property. Our measure is imperfect,
too, and we suggest directions for improvement.Comment: 19 pages, 5 figure
Sequential bargaining with pure common values and incomplete information on both sides
We study the alternating-offer bargaining problem of sharing a common value pie under incomplete information on both sides and no depreciation between two identical players. We characterise the essentially unique perfect Bayesian equilibrium of this game which turns out to be in gradually increasing offers
Car-to-Cloud Communication Traffic Analysis Based on the Common Vehicle Information Model
Although connectivity services have been introduced already today in many of
the most recent car models, the potential of vehicles serving as highly mobile
sensor platform in the Internet of Things (IoT) has not been sufficiently
exploited yet. The European AutoMat project has therefore defined an open
Common Vehicle Information Model (CVIM) in combination with a cross-industry,
cloud-based big data marketplace. Thereby, vehicle sensor data can be leveraged
for the design of entirely new services even beyond traffic-related
applications (such as localized weather forecasts). This paper focuses on the
prediction of the achievable data rate making use of an analytical model based
on empirical measurements. For an in-depth analysis, the CVIM has been
integrated in a vehicle traffic simulator to produce CVIM-complaint data
streams as a result of the individual behavior of each vehicle (speed, brake
activity, steering activity, etc.). In a next step, a simulation of vehicle
traffic in a realistically modeled, large-area street network has been used in
combination with a cellular Long Term Evolution (LTE) network to determine the
cumulated amount of data produced within each network cell. As a result, a new
car-to-cloud communication traffic model has been derived, which quantifies the
data rate of aggregated car-to-cloud data producible by vehicles depending on
the current traffic situations (free flow and traffic jam). The results provide
a reference for network planning and resource scheduling for car-to-cloud type
services in the context of smart cities
Sequential bargaining with pure common values and incomplete information on both sides
We study the alternating-offer bargaining problem of sharing a common value pie under incomplete information on both sides and no depreciation between two identical players. We characterise the essentially unique perfect Bayesian equilibrium of this game which turns out to be in gradually increasing offers.Gradual bargaining; Common values; Incomplete information; Repeated games
Assisted Common Information: Further Results
We presented assisted common information as a generalization of
G\'acs-K\"orner (GK) common information at ISIT 2010. The motivation for our
formulation was to improve upperbounds on the efficiency of protocols for
secure two-party sampling (which is a form of secure multi-party computation).
Our upperbound was based on a monotonicity property of a rate-region (called
the assisted residual information region) associated with the assisted common
information formulation. In this note we present further results. We explore
the connection of assisted common information with the Gray-Wyner system. We
show that the assisted residual information region and the Gray-Wyner region
are connected by a simple relationship: the assisted residual information
region is the increasing hull of the Gray-Wyner region under an affine map.
Several known relationships between GK common information and Gray-Wyner system
fall out as consequences of this. Quantities which arise in other source coding
contexts acquire new interpretations. In previous work we showed that assisted
common information can be used to derive upperbounds on the rate at which a
pair of parties can {\em securely sample} correlated random variables, given
correlated random variables from another distribution. Here we present an
example where the bound derived using assisted common information is much
better than previously known bounds, and in fact is tight. This example
considers correlated random variables defined in terms of standard variants of
oblivious transfer, and is interesting on its own as it answers a natural
question about these cryptographic primitives.Comment: 8 pages, 3 figures, 1 appendix; to be presented at the IEEE
International Symposium on Information Theory, 201
The impact of common APSE interface set specifications on space station information systems
Certain types of software facilities are needed in a Space Station Information Systems Environment; the Common APSE (Ada Program Support Environment) Interface Set (CAIS) was proposed as a means of satisfying them. The reasonableness of this is discussed by examining the current CAIS, considering the changes due to the latest Requirements and Criteria (RAC) document, and postulating the effects on the CAIS 2.0. Finally, a few additional comments are made on the problems inherent in the Ada language itself, especially on its deficiencies when used for implementing large distributed processing and data base applications
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