Atom decomposition-based intonation modelling

Honnet, Pierre-Edouard, Gerazov, Branislav, Garner, Philip N. | Acoustics, Speech and Signal Processing (ICASSP), 2015 IEEE International Conference on (v.2015 / no.4 / pp.4744-4748 / 2015)

Current statistical parametric text-to-speech (TTS) synthesis methods allow production of neutral speech with acceptable quality. However, prosody is often qualified as u

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Current statistical parametric text-to-speech (TTS) synthesis methods allow production of neutral speech with acceptable quality. However, prosody is often qualified as unsatisfactory and sounding too flat. In this paper, we address intonation modelling for TTS based on physiological aspects of prosody production. A set of gamma distribution shaped atoms is defined and then intonation decomposition is performed using a matching pursuit algorithm. Some preliminary experiments show that this model allows easy extraction of physiologically meaningful atoms that could be used to generate intonation in a TTS system.

Identification of ferrite core inductors parameters by evolutionary algorithms

Stoyka, Kateryna, Di Capua, Giulia, Della Cioppa, Antonio, Femia, Nicola, Spagnuolo, Giovanni | Industrial Informatics (INDIN), 2015 IEEE 13th International Conference on (v.2015 / no.7 / pp.1648-1653 / 2015)

This paper discusses the identification of Ferrite Core (FC) power inductors parameters in the real operating conditions relevant to Switch-Mode Power Supplies starting f

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This paper discusses the identification of Ferrite Core (FC) power inductors parameters in the real operating conditions relevant to Switch-Mode Power Supplies starting from experimental measurements. A novel method for parameters identification is proposed, based on Evolutionary Algorithms (EAs) and on the analysis of inductors non-linear behavior. Two EAs, the Genetic Algorithm and the Differential Evolution, are investigated and compared. The results of the proposed method are experimentally validated by means of a buck converter evaluation board.

Community detection game

Xuanyu Cao, Yan Chen, Liu, K. J. Ray | Acoustics, Speech and Signal Processing (ICASSP), 2016 IEEE International Conference on (v.2016 / no.3 / pp.6220-6224 / 2016)

Real-world networks are often cluttered and hard to organize. Recent studies show that most networks have the community structure, i.e., nodes with similar attributes for

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Real-world networks are often cluttered and hard to organize. Recent studies show that most networks have the community structure, i.e., nodes with similar attributes form a certain community, which enables people to better understand the constitution of the networks. Hitherto, various community detection methods have been proposed in the literature yet none of them takes the strategic interactions among nodes into consideration. Additionally, many real-world observations of networks are noisy and incomplete, i.e., with some missing links or fake links, due to either technology constraints or privacy regulations. In this work, a game-theoretic framework of community detection is established, where nodes interact and produce links with each other in a rational way based on mutual benefits. Given the proposed game-theoretic generative models for communities, we use expectation maximization (EM) algorithm to detect communities. Simulations on synthetic networks and experiments on real-world networks demonstrate that the proposed detection method outperforms the state-of-the-art.

Near-field injection on a Safe System Basis Chip at silicon level

Vrignon, B., Doridant, A., Abouda, K., Gao, Y., Pagnoux, D., Marek, T. | Electromagnetic Compatibility of Integrated Circuits (EMC Compo), 2015 10th International Workshop on the (v.2015 / no.11 / pp.131-136 / 2015)

Near-field injection at silicon level is a promising method for various areas such as the analysis of radiated immunity to electromagnetic disturbances. Up to now, the re

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Near-field injection at silicon level is a promising method for various areas such as the analysis of radiated immunity to electromagnetic disturbances. Up to now, the research has been mainly focused at PCB level due to the resolution of the near-field probe. This paper presents first investigations of near-field injection on a Safe System Basis Chip at die level. The investigations are focused on one of the regulators included in this IC. The goal is to use the coupling path from 'ultra-high-radiation' to check if the Fail Safe Machine detects correctly the regulator failures during near-field injection. Moreover, simulations help to understand the failure mechanism.

Data-Driven Robust Taxi Dispatch Approaches

Miao, Fei, Han, Shuo, Lin, Shan, Stankovic, John, Wang, Qian, Zhang, Desheng, He, Tian, Pappas, George J. | Cyber-Physical Systems (ICCPS), 2016 ACM/IEEE 7th International Conference on (v.2016 / no.4 / pp.1-1 / 2016)

In modern taxi networks, large amounts of taxi occupancy status and location data are collected from networked in-vehicle sensors in real- time. They provide knowledge of

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In modern taxi networks, large amounts of taxi occupancy status and location data are collected from networked in-vehicle sensors in real- time. They provide knowledge of system models on passenger demand and mobility patterns for efficient taxi dispatch and coordination strategies. Such approaches face a new challenge: how to deal with uncertainties of predicted customer demand while fulfilling the system's performance requirements, including minimizing taxis' total idle mileage and maintaining service fairness across the whole city. To address this problem, we develop a data- driven robust taxi dispatch framework to consider spatial-temporally correlated demand uncertainties. The robust optimization problem has an objective function that is concave in the uncertain demand and convex in the decision variables, and constraints that are convex in the decision variables according to the practical requirements. We design a data-driven algorithm for constructing uncertainty sets of random demand vectors that provide a probabilistic guarantee for the performance of robust taxi dispatch solutions. It guarantees that the probability that the actual dispatch cost under the true demand vector being smaller than the optimal cost of the robust dispatch solutions with the uncertainty sets is greater than a desired probability value. We prove equivalent computationally tractable forms of the robust dispatch problem with the constructed closed convex polytope and second order cone types of uncertainty sets, using the minimax theorem and strong duality. Evaluations on four years of taxi trip data for New York City show that the probabilistic guarantee is satisfied. By selecting a probabilistic guarantee level that does not sacrifice the average cost much, the average demand- supply ratio error is reduced by 31.7%, and the average total idle driving distance is reduced by 10.13% compared with non-robust dispatch solutions.

Community network clouds as a case for the IEEE Intercloud standardization

Baig, Roger, Freitag, Felix, Moll, Agusti, Navarro, Leandro, Pueyo, Roger, Vlassov, Vladimir | Standards for Communications and Networking (CSCN), 2015 IEEE Conference on (v.2015 / no.10 / pp.269-274 / 2015)

The IEEE P2302 Intercloud WG conducts work since 2011 on the project Standard for Intercloud Interoperability and Federation with the goal to define a standard architectu

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The IEEE P2302 Intercloud WG conducts work since 2011 on the project Standard for Intercloud Interoperability and Federation with the goal to define a standard architecture and building components for large-scale interoperability of independent cloud providers. While the standardization process has achieved fine-grained definitions of several Intercloud components, a deployment of the Intercloud to demonstrate the architectural feasibility is not yet operational. In this paper, we describe a deployed community network cloud and we show how it matches in several aspects the vision of the Intercloud. Similar to the Intercloud, the community network cloud consists of many small cloud providers, which for interoperability use a set of common services. In this sense, the community network cloud is a real use case for elements that the Intercloud standardization WG envisions, and can feed back to and even become part of the Intercloud. In fact, a study on Small or Medium Enterprise (SME) provided commercial services in the community network cloud indicates the importance of the success of the Intercloud standardization initiative for SMEs.

Co-simulation for a flexible four-bar mechanism

Lee, Fu-Shin, Lin, Chen-I, Chen, Zhi-Yu | Advanced Robotics and Intelligent Systems (ARIS), 2015 International Conference on (v.2015 / no.5 / pp.1-5 / 2015)

The main objective of this study is to establish a virtual prototyping model of a flexible four-bar mechanism and perform co-simulations using both mechanism model constr

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The main objective of this study is to establish a virtual prototyping model of a flexible four-bar mechanism and perform co-simulations using both mechanism model construction and control strategy development tools for the structure. Taking the four-bar mechanism as an example, a co-simulation control approach is introduced to study multi-body flexible dynamics. Lagrange approach is first implemented to study the dynamics model of a rigid four-bar mechanism, and co-simulations are conducted to investigate the responses of its flexible form made of various materials. Then, controller strategies are exercised to demand the four-bar mechanism to response as requested. The study verifies the feasibility to control of flexible multi-body mechanisms' traces.

Reflections on playfulness, imagination and creativity, their relations and open questions

Varela Afonso, Ana Paula, Roque, Licinio | Information Systems and Technologies (CISTI), 2015 10th Iberian Conference on (v.2015 / no.6 / pp.1-5 / 2015)

We are currently interested in the study of core concepts: playfulness, imagination, creativity. In here we are looking at existing theoretical perspectives on these conc

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We are currently interested in the study of core concepts: playfulness, imagination, creativity. In here we are looking at existing theoretical perspectives on these concepts, trying to understand the relationships between them, to identify unanswered questions. While trying to put into evidence the relationships between these concepts for the study of creative processes, we aim at designing future solutions for digital media or technological support for collective creation. At the moment we realize that there is a lack of consensus around these concepts and the way they interrelate, how they can be studied and their relationship with technological innovations. Finally, we enumerate several unanswered questions in this context.

Recent progress of junction technology for germanium CMOS

Nishimura, Tomonori, Choong Hyun Lee, Nakamura, Toshimitsu, Yajima, Takeaki, Nagashio, Kosuke, Kita, Koji, Toriumi, Akira | Junction Technology (IWJT), 2015 15th International Workshop on (v.2015 / no.6 / pp.65-68 / 2015)

To realize scaled Ge CMOS device, there are several challenges of junction formation in nMOSFET. (Fermi level pinning, activation and diffusion of n-type impurities and j

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To realize scaled Ge CMOS device, there are several challenges of junction formation in nMOSFET. (Fermi level pinning, activation and diffusion of n-type impurities and junction leakage, etc.) In this paper, we report recent progresses of controllability of band alignment at metal/Ge interface, understanding of n-type impurity activation in Ge, and impact of oxygen in Ge on n+/p junction leakage.

Automated Decomposition of Build Targets

Vakilian, Mohsen, Sauciuc, Raluca, Morgenthaler, J. David, Mirrokni, Vahab | Software Engineering (ICSE), 2015 IEEE/ACM 37th IEEE International Conference on (v.1 / pp.123-133 / 2015)

A (build) target specifies the information that is needed to automatically build a software artifact. This paper focuses on underutilized targets - an important dependenc

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A (build) target specifies the information that is needed to automatically build a software artifact. This paper focuses on underutilized targets - an important dependency problem that we identified at Google. An underutilized target is one with files not needed by some of its dependents. Underutilized targets result in less modular code, overly large artifacts, slow builds, and unnecessary build and test triggers. To mitigate these problems, programmers decompose underutilized targets into smaller targets. However, manually decomposing a target is tedious and error-prone. Although we prove that finding the best target decomposition is NP-hard, we introduce a greedy algorithm that proposes a decomposition through iterative unification of the strongly connected components of the target. Our tool found that 19,994 of 40,000 Java library targets at Google can be decomposed to at least two targets. The results show that our tool is (1) efficient because it analyzes a target in two minutes on average and (2) effective because for each of 1,010 targets, it would save at least 50% of the total execution time of the tests triggered by the target.

Decomposition of contact force using contact pressure for haptic augmented reality

Kim, Hyoungkyun, Choi, Seungmoon, Chung, Wan Kyun | Ubiquitous Robots and Ambient Intelligence (URAI), 2015 12th International Conference on (v.2015 / no.10 / pp.194-196 / 2015)

In this paper, we present a decomposition method of contact force between a haptic interface and an object for haptic augmented reality. The proposed method uses contact

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In this paper, we present a decomposition method of contact force between a haptic interface and an object for haptic augmented reality. The proposed method uses contact pressure distribution as well as force measurement. Thanks to the contact pressure distribution, the proposed method can find the right normal direction regardless of large shear deformation. The simulation result validated the performance of the proposed method.

Comparison of acoustic wave pressure sensors for TPMS applications

Nagaraju, Manohar B., Sridaran, Suresh, Lingley, Andrew R., Larson, John D., Otis, Brian P., Ruby, Richard C. | Frequency Control Symposium amp; the European Frequency and Time Forum (FCS), 2015 Joint Conference of the IEEE International (v.2015 / no.4 / pp.205-208 / 2015)

We study and compare the pressure sensitivities of different area Rayleigh Lamb wave (RL) mode (S1 mode) and FBAR resonators. The studied RL-mode and FBAR resonators oper

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We study and compare the pressure sensitivities of different area Rayleigh Lamb wave (RL) mode (S1 mode) and FBAR resonators. The studied RL-mode and FBAR resonators operate at 785MHz and 628MHz respectively. The resonators are fabricated on a released membrane with AlN as the piezoelectric layer. The resonators are hermetically sealed and the manufacturing process uses standard micromachining techniques throughout. The devices exhibit a pressure sensitivity over a range of 15 - 80psi, suitable for Tire Pressure Monitoring Systems (TPMS). The sensitivities of different area resonators are compared.

Stripline injection cell for high frequency BCI tests

Andrieu, Guillaume, Reineix, Alain | Electromagnetic Compatibility (EMC), 2015 IEEE International Symposium on (v.2015 / no.8 / pp.861-864 / 2015)

This paper presents an innovative injection system (based on a Stripline injection cell) able to extend the possibility to perform BCI tests until 2 GHz. Encouraging expe

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This paper presents an innovative injection system (based on a Stripline injection cell) able to extend the possibility to perform BCI tests until 2 GHz. Encouraging experimental results are presented showing the interest and the performances of the proposed system in comparison to reverberation chamber immunity tests.

Identification of opinion leaders in social network

Khan, Nida Saddaf, Ata, Maira, Rajput, Quratulain | Information and Communication Technologies (ICICT), 2015 International Conference on (v.2015 / no.12 / pp.1-6 / 2015)

Identification of the opinion leaders in the world's largest microblogging site, Twitter, is crucial problem of social network analysis. Twitter has quick information flo

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Identification of the opinion leaders in the world's largest microblogging site, Twitter, is crucial problem of social network analysis. Twitter has quick information flow and has high impact on forming opinion on mass public. This paper presents the study based on various centrality mesaure approaches for finding key players for a specific political trend on Twitter. A novel weighted approach has been proposed for finding opinion leaders based on the centrality measures. Experiment has been conducted on the Twitter's data for the sit in procession of Pakistani politician Imran Khan in 2014. It has been found that Twitter opinion leadership makes a significant contribution to individuals' involvement in political reforms.

Simulation of PIM generated on the mesh reflector

Bai, He, Cui, Wanzhao | Microwave Conference (EuMC), 2015 European (v.2015 / no.9 / pp.602-605 / 2015)

A novel model is presented for the simulation of passive intermodulation (PIM) generated on the mesh reflector. The model considers the contacts between wires as the main

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A novel model is presented for the simulation of passive intermodulation (PIM) generated on the mesh reflector. The model considers the contacts between wires as the main PIM sources. The electro-thermal coupling could be the main nonlinear mechanism responsible for PIM for contacts between the wires coated by gold. The third order intermodulation level responses of 0.25*0.25 square mesh sample with different contact radius are presented, which shows that the PIM level varies for contact radius larger than 2um with two tone 2GHz and 2.1GHz irradiated. The PIM roll-off(3rd order) was found to be 3dB per dB, which shows qualitative agreement with the measured data published by previous authors.

Optimisation and memristive response of sol-gel derived TiO2 thin films

Prusakova, Valentina, Dire, Sandra, Collini, Cristian, Pasquardini, Laura, Vanzetti, Lia, Resta, Giuseppe, Pederzolli, Cecilia, Lorenzelli, Leandro | AISEM Annual Conference, 2015 XVIII (v.2015 / no.2 / pp.1-4 / 2015)

Herein, we developed a series of Pt/TiO 2 /Pt/Ti/SiO 2 resistive switching materials with a variation in chemical composition of TiO 2 in an attempt to evaluate the

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Herein, we developed a series of Pt/TiO 2 /Pt/Ti/SiO 2 resistive switching materials with a variation in chemical composition of TiO 2 in an attempt to evaluate the parameters affecting the memristive switching behavior and, therefore, to optimize and control it. Different chemical compositions of TiO 2 were obtained by annealing the films at 400 #x00B0;C for 1 hour in diverse atmospheric conditions, such as air, vacuum and oxygen environments. The elemental composition of the produced samples was analyzed by X-ray photoelectron spectroscopy (XPS), revealing the different stoichiometric ratio of Ti/O and doping/contamination with silicon, carbon, and nitrogen depending on the annealing conditions. The preliminary I-V curves were acquired with Pt dish or wire, serving as a top electrode. The results showed a superior stability, durability and reproducibility of the resistive switch behavior observed in the samples containing oxidized silicon impurities. In addition to the electrical studies, the evolution of Pt dish top electrode was monitored by optical microscopy and scanning electron microscopy (SEM), revealing mechanical and electrochemical damage of the electrode during the electroforming step.

Stability Analysis and Trajectory Tracking Control of Articulated Heavy Vehicles

Tian Jie, Chen Qingyun, Song Zhipeng, Xu Lian, Li Meiying | Intelligent Transportation, Big Data and Smart City (ICITBS), 2015 International Conference on (v.2015 / no.12 / pp.744-748 / 2015)

Articulated heavy vehicles have heavy loads, high shipping efficiency and low mileage cost. But due to the interaction between the tractor and the trailer, it is easy to

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Articulated heavy vehicles have heavy loads, high shipping efficiency and low mileage cost. But due to the interaction between the tractor and the trailer, it is easy to appear 'jack-knifing' or 'trailer sway' and it is difficult to follow the given path of the travel. To this end, a four degrees of freedom single track model of a tractor/full-trailer is built, and the stability analysis is carried on to study the influences of the structural and operating parameters on the vehicle. Furthermore the trajectory tracking controller of trailer is designed, which can ensure that the trajectory of the trailer follows that of the tractor exactly by the control of the active front wheel steering angle of the trailer and the vehicle can maintain good handling stability.

Reconstructing cultural heritage objects from storytelling

Rizvic, Selma, Skalonjic, Izabela | Digital Heritage, 2015 (v.2 / pp.221-226 / 2015)

Once upon a time in a small city of Sjenica, Serbia, there was a fortress. The Ottoman Sultan Murat IV has built it to protect and control this important region. Today at

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Once upon a time in a small city of Sjenica, Serbia, there was a fortress. The Ottoman Sultan Murat IV has built it to protect and control this important region. Today at that location there is an elementary school. There is no trace of the fortress neither at the place nor in the memory of people. But, an old man still remembers it from his childhood. In this paper we describe how we recreated the cultural heritage object of Sultan Murat's fortress in Sjenica from storytelling. We present the created interactive multimedia application and the impressions of Sjenica citizens after a part of their history was returned to their collective memory.

Simulation framework for POF-based communication systems

Lopez, Alicia, Angeles Losada, M., Mateo, Javier | Transparent Optical Networks (ICTON), 2015 17th International Conference on (v.2015 / no.7 / pp.1-4 / 2015)

Plastic Optical Fibers (POFs) are in a good position to become the preferred media for cost-effective short-haul communications such as domestic and transport networks. H

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Plastic Optical Fibers (POFs) are in a good position to become the preferred media for cost-effective short-haul communications such as domestic and transport networks. However, the ever-increasing user demands drive POF systems to be operated close to their capacity. Therefore, the common practice to simulate the whole system in order to estimate its performance prior to its physical deployment is of paramount importance in POF-based communication links. In this work, we will present a system-level simulation framework able to evaluate the performance of POF systems with different layouts built with several passive and active components, including optical sources, detectors, fibers and connectors. Given the high multimodality of plastic optical fibers, the optical building blocks in the simulation framework are based on mathematical models that take into account both the temporal (frequency) and the spatial dimensions. We will show the possibility to assess not only basic IM/DD transmission, but also more advanced transmission techniques that can overcome the bandwidth limitations of POF, confirming how powerful the simulation framework is.

Treatment for neuropathic pain and chronic inflammation using LASER in animal models

Erthal, V., Nohama, P. | Engineering in Medicine and Biology Society (EMBC), 2015 37th Annual International Conference of the IEEE (v.2015 / no.8 / pp.1315-1318 / 2015)

The ST36 (Zusanli) acupuncture point is used to treat inflammatory processes, pain and gastrointestinal disturbs. For this reason, the aim of the present study was to eva

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The ST36 (Zusanli) acupuncture point is used to treat inflammatory processes, pain and gastrointestinal disturbs. For this reason, the aim of the present study was to evaluate the antinociceptive effect of Low-level Laser Treatment (LLLT) on ST36 acupoint using models of chronic nociception and inflammation. Male Swiss mice were treated with LLLT on ST36 30 minutes before the mechanical allodynia (von Frey) performed on the partial sciatic nerve ligation (PSNL) method and Complete Freund's Adjuvant (CFA). The results demonstrated that application of LLLT on ST36 inhibited the mechanical allodynia response induced by PSNL and CFA, with total reversion at 30 minutes after application. Long-term treatment of animals with LLLT on the same acupoint, once a day, also reduced the PNSL and CFA-induced mechanical allodynia response during 8 days of treatment. As conclusion, the results demonstrated that photonic stimulus on ST36 with LLLT produces antinociceptive effect in chronic models of nociception and inflammation. These findings suggest that LLLT may constitute an important therapeutic alternative to control chronic pain.