04b Atto di convegno in volume

Context-based image semantic similarity
Heuristics for semantic path search in Wikipedia
Heuristic semantic walk: Browsing a collaborative network with a search engine-based heuristic
Collective evolutionary concept distance based query expansion for effective web document retrieval
Web usability on the Nintendo Wii platform
Quasi-Newton based preconditioning and damped quasi-Newton schemes for nonlinear conjugate gradient methods
Preconditioning strategies for nonlinear conjugate gradient methods, based on quasi-Newton updates
Estimating the Frequency of Data Items in Massive Distributed Streams

We investigate the problem of estimating on the fly the frequency at which items recur in large scale distributed data streams, which has become the norm in cloud-based application. This paper presents CASE, a combination of tools and probabilistic algorithms from the data streaming model. In this...
Identifying Global Icebergs in Distributed Streams

We consider the problem of identifying global iceberg attacks in massive and physically distributed streams. A global iceberg is a distributed denial of service attack, where some elements globally recur many times across the distributed streams, but locally, they do not appear as a deny of service...
Efficiently Summarizing Data Streams over Sliding Windows

In this paper, we consider the sliding window model and propose two different (on-line) algorithms that approximate the items frequency in the active window. More precisely, we determine a (ϵ, δ)-additive-approximation meaning that the error is greater than ϵ only with probability δ. These...