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Due to their long endurance at sea, underwater gliders are envisioned to play a significant role in persistent maritime surveillance and monitoring. However, so far they have been mainly used for measuring sea water properties such as temperature, salinity and optical properties. CMRE is considering using gliders for different new missions such as passive acoustic monitoring, sea bottom and sea surface...
Passive acoustic monitoring systems that can be deployed for a long period of time (few months) is a needed for the work NURC is doing in the field of marine mammals risk mitigation but also would be very suitable for the port protection project where the deployment of long-term acoustic systems could be considered/required for the detection of threats such as divers and small surface vessels. Fortunately,...
Neural networks can provide an effective way for profiling a plant, if conditions are accurately sampled and data properly collected. In this paper we investigate such an approach, considering a textile finishing machinery named rameuse as experimental context.
We introduce the definition of fuzzy co-transform, as complementary to the definition of fuzzy transform and applied to co-domain of real functions. Basic properties of direct and inverse fuzzy co-transform are discussed. Examples of application to time series are given.
Optimizing cash in automatic teller machines (ATM) is challenging due unpredictability of withdrawals, but profitable because of the large number of tellers. Generally ATM cash management and optimization is performed manually, according to corporate policies and personnel experience. A non-optimal cash upload can lead to poor service when cash demand is underestimated and to unnecessary costs when...
In many applications, search algorithms deal with fitness functions whose value is obtained by aggregation. In the recent years, aggregation functions have been largely investigated and extensive theoretical framework is available to characterize a function. In this paper we discuss how to choose an aggregated fitness function and what is the effect on modeling the search landscape and in driving...
Searching for portfolios co-integrated with an index offers new opportunities in designing robust investment strategies. The problem of finding optimal index co-integrated portfolios that are maximally stationary is combinatorial. Indeed, given a basket of equities, the portfolio/index co-integration cannot be simply expressed in terms of equity/index co-integration. In this paper we investigate the...
In this paper we introduce a Java library for developing and testing genetic algorithms. The software architecture is aimed at addressing common issues regarding system memory and garbage collection in Java programming. In order to validate our solution, a comparison with other frameworks is provided.
In this paper we propose a model, based on Bayesian inference, aimed at predicting the user input according to past interactions. We exploited this approach to prototype an innovative online payment system in Poste Italiane. Preliminary experimental results outline that this approach is feasible and may improve usability and user experience more in general.
Color selection in designing user interfaces is addressed by an interactive genetic algorithm. The proposed approach is aimed at finding the optimal trade-off between different and sometimes conflicting constraints, without any explicit model of user preferences and abilities. Experimentation investigates the algorithm convergence under several conditions and user behavior.
Mining patterns in large databases is a challenging task facing NP-hard problems. Research focused attention on the most occurrent patterns, although less frequent patterns still offer interesting insights. In this paper we propose a new algorithm for discovering infrequent patterns and compare it to other solutions.
Getting access to web content by mobile devices is becoming widespread. This poses the need of adapting content that have been designed for desktop application to being delivered on smaller displays. In this paper we investigate the application of a genetic algorithm as means for an automatic adaptation of existent pages to mobile device requirements, reporting preliminary results and outlining problems...
Financial markets suggest new ways to design, organize and evolve user interfaces. In this paper we present an approach based on marketplace simulations, where UI resources are sold and acquired, attempting to prove that this metaphor can innovate the way we think about UI design and deployment, relying on self-ruling emerging properties of complex systems.
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