Aggregate statistics computed from time-series data contributed by individual mobile nodes can be very useful for many mobile sensing applications. Since the data from individual node may be privacy-sensitive, the aggregator should only learn the desired statistics without compromising the privacy of each node. To provide strong privacy guarantee, existing approaches add noise to each node’s da...

The bad news principle states that only the expected severity of future bad news matters for the decision whether to invest today, good news should not matter at all. This paper tests this prediction using firm level expectation data.  2000 Elsevier Science S.A. All rights reserved.

The written medium through which we commonly learn about relevant news are news articles. Since there is an abundance of news articles that are written daily, the readers have a common problem of discovering the content of interest and still not be overwhelmed with the amount of it. In this paper we present a system called Event Registry which is able to group articles about an event across lan...

Australian English is traditionally considered to be the form of English spoken by people who are born in Australia or who immigrate at an early age and whose peer network consists of Australian English speakers (Bernard 1981). Such a simple definition implies that Australian English is a single form, which all native-born Australians will attain and exhibit. This paper will review segmental as...

We discuss a framework for coordinating the response of distributed energy resources (DERs) connected to electric power distribution networks to provide frequency regulation services. These resources include plug-in electric vehicles, thermostatically controlled loads, and microturbines. In this framework, we consider an aggregator that participates in the real-time market by submitting an offe...

The utilization of electric vehicles has been suggested to support the frequency regulation of power system. Assuming that an intermediate aggregator exists, this study suggests a decentralized vehicle-to-grid operation scheme in which each vehicle-to-grid aggregator can behave independently of the power system operator. To implement this type of decentralized operation, this study adopts a pri...