Search results for "programma"
showing 10 items of 708 documents
Optimal implementation of neural activation functions in programmable logic using fuzzy logic
2006
Abstract This work presents a methodology for implementing neural activation function in programmable logic using tools from fuzzy logic. This methodology will allow implementing these intrinsic non-linear functions using comparators and simple linear modellers, easily implemented in programmable logic. This work is particularized to the case of a hyperbolic tangent, the most common function in neural models, showing the excellent results yielded with the proposed approximation.
Il modello “MUSS” per un uso sostenibile dei suoli
2012
IL PROGRAMMA MESSAGGERI DELLA CONOSCENZA
2014
L'opportunità di frequentare un Corso di Ingegneria Naturalistica, offerta agli studnti dell'Università di Palermo, è stata determinata del programma Messaggeri della conoscenza promosso dal MIUR del 2012. Il Dipartimento di Architettura, intestatrio del progetto ID 181: Igegneria naturalistica per la progettazione paesaggistica in aree urbane degradate caratterizzate da clima Mediterraneo, attraversso il Laboratorio di Arte dei Giardini e Architettura del Paesaggio del prof. Giuseppe Guerrera, ha svolto le funzioni di coordinamento e promozione del Corso offrendolo agli studenti di Architettura, Ingegneria-Architettura, Igegneria Ambientale, Scienze Agrarie e Forestali. L'obiettivo dell'in…
Ri-costruzione del fronte a mare della Cala a Palermo
2013
Giuseppe Samonà nel Piano Programma di Palermo (1979-1982) prevedeva di completare il fronte a mare della Cala con un’architettura capace di intessere relazioni fra le preesistenze. In continuità con quel punto di vista, un progetto di nuovi alloggi diviene l’opportunità per cercare di dimostrare come una lettura critica del tessuto urbano possa condurre a intervenire in un contesto storico senza ricorrere a soluzioni mimetiche pur mantenendo, o possibilmente potenziando, le peculiarità del luogo. Il sistema antico, concentrico alla sponda e interrotto dai bombardamenti, è quindi riconfigurato con un corpo semicircolare che si attesta, a est, alla chiesa di Santa Maria di Porto Salvo. L’art…
Le fonti rinnovabili in Sicilia: impatti sul mercato zonale e sulla gestione del sistema elettrico
2014
L’articolo descrive gli aspetti tecnici e di mercato del sistema elettrico siciliano mettendo in evidenza le cause che hanno portato all’aumento del prezzo zonale nelle ore serali, gli effetti che le FRNP hanno sui mercati elettrici (MGP e MSD) e sulla gestione del sistema elettrico siciliano.
MAC–Engine: a new architecture for executing MAC algorithms on commodity WiFi hardware
2011
In this demo, we prove that the flexibility supported by off–the–shelf IEEE 802.11 hardware can be significantly ex- tended if we move the control of the MAC programming interface from the driver to the firmware, i.e. from the host CPU to the card CPU. To this purpose, we introduce the concept of MAC–Engine, that is an executor of Pro- grammable Finite State Machines (PFSM) implemented at the firmware level: we show how the card itself can support different protocol logics thanks to PFSM bytecode repre- sentations that can be dynamically injected inside the card memory at run-time without incurring in down time issues or network disconnect events. We provide different PFSM examples in order…
Supporting code mobility and dynamic reconfigurations over Wireless MAC Processor Prototype
2014
Mobile networks for Internet Access are a fundamental segment of Internet access net- works, where resource optimization are really critical because of the limited bandwidth availability. While traditionally resource optimizations have been focused on high effi- cient modulation and coding schemes, to be dynamically tuned according to the wireless channel and interference conditions, it has also been shown how medium access schemes can have a significant impact on the network performance according to the application and networking scenarios. This thesis work proposes an architectural solution for supporting Medium Access Con- trol (MAC) reconfigurations in terms of dynamic programming and c…
Efficient FPGA Implementation of a Knowledge-Based Automatic Speech Classifier
2005
Speech recognition has become common in many application domains, from dictation systems for professional practices to vocal user interfaces for people with disabilities or hands-free system control. However, so far the performance of Automatic Speech Recognition (ASR) systems are comparable to Human Speech Recognition (HSR) only under very strict working conditions, and in general far lower. Incorporating acoustic-phonetic knowledge into ASR design has been proven a viable approach to rise ASR accuracy. Manner of articulation attributes such as vowel, stop, fricative, approximant, nasal, and silence are examples of such knowledge. Neural networks have already been used successfully as dete…
An Embedded Module for Iris Micro-Characteristics Extraction
2009
In this paper a new approach, based on iris micro-characteristics, has been used to make possible an embedded biometric extractor. This recognition approach is based on ophthalmologic studies that have proven the existence of different micro-characteristics as well as fingerprint minutiae. These micro-characteristics are permanent and immutable and they can be used to create strong and robust identification systems.Biometric recognition systems are critical components of our everyday lives. Since such electronic products evolve to software intensive systems, where software, becoming larger, more complex and prevalent, introduces many problems in the development phases. The development of em…
ConformalALU: A Conformal Geometric Algebra Coprocessor for Medical Image Processing
2015
Medical imaging involves important computational geometric problems, such as image segmentation and analysis, shape approximation, three-dimensional (3D) modeling, and registration of volumetric data. In the last few years, Conformal Geometric Algebra (CGA), based on five-dimensional (5D) Clifford Algebra, is emerging as a new paradigm that offers simple and universal operators for the representation and solution of complex geometric problems. However, the widespread use of CGA has been so far hindered by its high dimensionality and computational complexity. This paper proposes a simplified formulation of the conformal geometric operations (reflections, rotations, translations, and uniform …