Publications by Claudio Paolo Alberti

Toward a Dynamic Threshold for Quality-Score Distortion in Reference-Based Alignment

Marco Mattavelli, Claudio Paolo Alberti, Ana Angelica Hernandez Lopez

The intrinsic high entropy metadata, known as quality scores, are largely the cause of the substantial size of sequence data files. Yet, there is no consensus on a viable reduction of the resolution of the quality score scale, arguably because of collatera ...

2019

Differential gene expression with lossy compression of quality scores in RNA-seq data

Marco Mattavelli, Claudio Paolo Alberti, Ana Angelica Hernandez Lopez

Ieee Computer Soc2017

MPEG-G the emerging standard for genomic data compression

Marco Mattavelli, Claudio Paolo Alberti

2017

An Evaluation Framework for Lossy Compression of Genome Sequencing Quality Values

Marco Mattavelli, Claudio Paolo Alberti, Ana Angelica Hernandez Lopez

This paper provides the specification and an initial validation of an evaluation framework for the comparison of lossy compressors of genome sequencing quality values. The goal is to define reference data, test sets, tools and metrics that shall be used to ...

Ieee2016

On the Development and Optimization of HEVC Video Decoders Using High-Level Dataflow Modeling

Marco Mattavelli, Claudio Paolo Alberti, Damien Jack De Saint Jorre, Daniele Renzi

2016

Comparison of high-throughput sequencing data compression tools

Marco Mattavelli, Claudio Paolo Alberti

High-throughput sequencing (HTS) data are commonly stored as raw sequencing reads in FASTQ format or as reads mapped to a reference, in SAM format, both with large memory footprints. Worldwide growth of HTS data has prompted the development of compression ...

Nature Publishing Group2016

H2B2VS (HEVC Hybrid Broadcast Broadband Video Services) – building innovative solutions over hybrid networks

Claudio Paolo Alberti

Broadcast and broadband networks continue to be separate worlds in the video consumption business. Some initiatives such as HbbTV have built a bridge between both worlds, but its application is almost limited to providing links over the broadcast channel t ...

2015

A Methodology For Optimizing Buffer Sizes Of Dynamic Dataflow Fpgas Implementations

Marco Mattavelli, Claudio Paolo Alberti, Ab Al Hadi Bin Ab Rahman, Simone Casale Brunet

Minimizing buffer sizes of dynamic dataflow implementations without introducing deadlocks or reducing the design performance is in general an important and useful design objective. Indeed, buffer sizes that are too small causing a system to deadlock during ...

Ieee2014

Exploring MPEG HEVC decoder parallelism for the efficient porting onto many-core platforms

Marco Mattavelli, Claudio Paolo Alberti, Simone Casale Brunet, Damien Jack De Saint Jorre

MPEG High Efficient Video Coding (HEVC) is likely to emerge as the video coding standard for HD and Ultra-HD TV resolutions. The two elements that push HEVC beyond the previous standards are a higher compression efficiency of about a factor of two, and the ...

IEEE2014

ECMA-407: New Approaches to 3D Audio Content Data Rate Reduction with RVC-CAL

Marco Mattavelli, Claudio Paolo Alberti, Junaid Jameel Ahmad

Inverse problems have only been known in spatial audio for a very short time; their only solution, called "inverse coding" in literature, is essentially based on time-level modeling. Inverse problems, however, unlike parametric coding, require only an init ...

Audio Engineering Society (AES)2014

Partitioning And Optimization Of High Level Stream Applications For Multi Clock Domain Architectures

Marco Mattavelli, Claudio Paolo Alberti, Endri Bezati, Simone Casale Brunet

In this paper we propose a design methodology to partition dataflow applications on a multi clock domain architecture. This work shows how starting from a high level dataflow representation of a dynamic program it is possible to reduce the overall power co ...

Ieee2013

Systems Design Space Exploration by Serial Dataflow Program Executions

Marco Mattavelli, Claudio Paolo Alberti, Simone Casale Brunet

2013

Design Space Exploration of High Level Stream Programs on Parallel Architectures: A focus on the Buffer Size Minimization and Optimization Problem

Marco Mattavelli, Claudio Paolo Alberti, Simone Casale Brunet

This paper presents a dataflow design methodology and an associated co-exploration environment, focusing on the optimization of buffer sizes. The approach is applicable to dynamic dataflow designs and its performance is presented and validated by experimen ...

2013

Automated Qoe Evaluation Of Dynamic Adaptive Streaming Over Http

Marco Mattavelli, Claudio Paolo Alberti, Daniele Renzi

Dynamic Adaptive Streaming over HTTP (DASH) is referred to as a multimedia streaming standard to deliver high quality multimedia content over the Internet using conventional HTTP Web servers. As a fundamental feature, it enables automatic switching of qual ...

Ieee2013

Dataflow Program Analysis and Refactoring Techniques for Design Space Exploration: MPEG-4 AVC/H.264 Decoder Implementation Case Study

Marco Mattavelli, Claudio Paolo Alberti, Ab Al Hadi Bin Ab Rahman, Simone Casale Brunet

This paper presents a methodology to perform design space exploration of complex signal processing systems implemented using the CAL dataflow language. In the course of space exploration, critical path in dataflow programs is first presented, and then anal ...

IEEE2013

Design Space Exploration and Implementation of RVC-CAL Applications using the TURNUS framework

Marco Mattavelli, Claudio Paolo Alberti, Ghislain Roquier, Endri Bezati, Simone Casale Brunet

While research on the design of heterogeneous concurrent systems has a long and rich history, a unified design methodology and tool support has not emerged so far, and thus the creation of such systems remains a difficult, time-consuming and error-prone pr ...

2013

Automated QoE Evaluation of Dynamic Adaptive Streaming over HTTP

Marco Mattavelli, Claudio Paolo Alberti, Daniele Renzi

Dynamic Adaptive Streaming over HTTP (DASH) is referred to as a multimedia streaming standard to deliver high quality multimedia content over the Internet using conventional HTTP Web servers. As a fundamental feature, it enables automatic switching of qual ...

Curran Associates2013

Multi-clock domain optimization for reconfigurable architectures in high-level dataflow applications

Marco Mattavelli, Claudio Paolo Alberti, Endri Bezati, Simone Casale Brunet

2013

Porting an MPEG-HEVC decoder to a low-power many-core platform

Marco Mattavelli, Claudio Paolo Alberti, Simone Casale Brunet, Damien Jack De Saint Jorre

After several generations of video coding standards, MPEG High Efficient Video Coding (HEVC) is likely to emerge as the video coding standards for HD and Ultra-HD TV. HEVC decoding is expected to be less computationally demanding and to provide a higher le ...

2013

TURNUS: a unified dataflow design space exploration framework for heterogeneous parallel systems

Marco Mattavelli, Claudio Paolo Alberti, Simone Casale Brunet

This paper presents the main features of the TURNUS coexploration environment, an unified design space exploration framework suitable for heterogeneous parallel systems designed using an high level dataflow representation. The main functions of this tool a ...

IEEE2013