The Experts below are selected from a list of 141 Experts worldwide ranked by ideXlab platform
Radu Marculescu - One of the best experts on this subject based on the ideXlab platform.
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exploiting the routing flexibility for energy performance aware mapping of regular noc architectures
Design Automation and Test in Europe, 2003Co-Authors: Jingcao Hu, Radu MarculescuAbstract:In this paper, we present an algorithm which automatically maps the IPs onto a generic regular Network on Chip (NoC) architecture and constructs a deadlock-free deterministic routing function such that the Total Communication energy is minimized. At the same time, the performance of the resulting Communication system is guaranteed to satisfy the specified constraints through bandwidth reservation. As the main contribution, we first formulate the problem of energy/performance aware mapping, in a topological sense, and show how the routing flexibility can be exploited to expand the solution space and improve the solution quality. An efficient branch-and-bound algorithm is then described to solve this problem. Experimental results show that the proposed algorithm is very fast, and significant energy savings can be achieved. For instance, for a complex video/audio application, 51.7% energy savings have been observed, on average, compared to an ad-hoc implementation.
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energy aware mapping for tile based noc architectures under performance constraints
Asia and South Pacific Design Automation Conference, 2003Co-Authors: Jingcao Hu, Radu MarculescuAbstract:In this paper, we present an algorithm which automatically maps the IPs/cores onto a generic regular Network on Chip (NoC) architecture such that the Total Communication energy is minimized. At the same time, the performance of the mapped system is guaranteed to satisfy the specified constraints through bandwidth reservation. As the main contribution, we first formulate the problem of energy-aware mapping, in a topological sense, and then propose an efficient branch-and-bound algorithm to solve it. Experimental results show that the proposed algorithm is very fast and robust, and significant energy savings can be achieved. For instance, for a complex video/audio SoC design, on average, 60.4% energy savings have been observed compared to an ad-hoc implementation.
Jingcao Hu - One of the best experts on this subject based on the ideXlab platform.
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exploiting the routing flexibility for energy performance aware mapping of regular noc architectures
Design Automation and Test in Europe, 2003Co-Authors: Jingcao Hu, Radu MarculescuAbstract:In this paper, we present an algorithm which automatically maps the IPs onto a generic regular Network on Chip (NoC) architecture and constructs a deadlock-free deterministic routing function such that the Total Communication energy is minimized. At the same time, the performance of the resulting Communication system is guaranteed to satisfy the specified constraints through bandwidth reservation. As the main contribution, we first formulate the problem of energy/performance aware mapping, in a topological sense, and show how the routing flexibility can be exploited to expand the solution space and improve the solution quality. An efficient branch-and-bound algorithm is then described to solve this problem. Experimental results show that the proposed algorithm is very fast, and significant energy savings can be achieved. For instance, for a complex video/audio application, 51.7% energy savings have been observed, on average, compared to an ad-hoc implementation.
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energy aware mapping for tile based noc architectures under performance constraints
Asia and South Pacific Design Automation Conference, 2003Co-Authors: Jingcao Hu, Radu MarculescuAbstract:In this paper, we present an algorithm which automatically maps the IPs/cores onto a generic regular Network on Chip (NoC) architecture such that the Total Communication energy is minimized. At the same time, the performance of the mapped system is guaranteed to satisfy the specified constraints through bandwidth reservation. As the main contribution, we first formulate the problem of energy-aware mapping, in a topological sense, and then propose an efficient branch-and-bound algorithm to solve it. Experimental results show that the proposed algorithm is very fast and robust, and significant energy savings can be achieved. For instance, for a complex video/audio SoC design, on average, 60.4% energy savings have been observed compared to an ad-hoc implementation.
Jea S Moog - One of the best experts on this subject based on the ideXlab platform.
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speech perception and production skills of students with impaired hearing from oral and Total Communication education settings
Journal of Speech Language and Hearing Research, 1992Co-Authors: A E Geers, Jea S MoogAbstract:This study examined the degree to which students with profoundly impaired hearing who had been educated in oral and Total Communication (TC) environments developed auditory and speech skills. The sample consisted of 227 16- and 17-year-old students with profoundly impaired hearing: 127 from TC programs (63 with normal-hearing parents and 64 with deaf parents) and 100 from oral programs. Subject groups were matched in terms of age, unaided residual hearing, and IQ. On average, students from oral programs acquired more intelligible speech and made significantly better use of their limited residual hearing than did the TC students. This finding held for all TC students—those with deaf parents as well as those with normal-hearing parents. Although results of this study indicate that auditory and speech production skills are comparatively well developed in students who have consistently used spoken language throughout the day as the primary means of communicating, other factors associated with this oral sample...
Teresa A Zwola - One of the best experts on this subject based on the ideXlab platform.
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Communication mode and speech and language outcomes of young cochlear implant recipients a comparison of auditory verbal oral Communication and Total Communication
Otology & Neurotology, 2019Co-Authors: Elle Thomas, Teresa A ZwolaAbstract:OBJECTIVE To evaluate the effect of Communication mode on the spoken language outcomes of children who received a cochlear implant. STUDY DESIGN Retrospective analysis of postoperative speech and language and reading scores for children who received a cochlear implant and used three different modes of Communication: auditory-verbal (AV) (n = 39), oral Communication (OC) (n = 107), and Total Communication (TC) (n = 57). SETTING A single tertiary cochlear implant clinic. PATIENTS All children received their cochlear implant before the age of 5 years, had no known cochlear anomaly or cognitive delay that would affect their outcome with the CI, and had established consistent use of their respective Communication methodology. INTERVENTION Rehabilitation varied depending on the selected Communication methodology. Data were collected during routine postoperative speech and language evaluations. MAIN OUTCOME MEASURES Receptive and expressive language, reading comprehension, and speech intelligibility scores obtained up to 7 years post-activation of a cochlear implant. RESULTS All groups showed improvements over time. Linear mixed model analyses indicated scores obtained by children in the AV group were significantly higher than mean scores obtained by children in the other groups on most test measures at most post-implant intervals. Significantly greater numbers of children in the AV group obtained standard scores within normal limits than children in the OC and TC groups. CONCLUSIONS These findings support the use of the auditory-verbal Communication approach to facilitate development of age-appropriate speech and language and literacy skills in profoundly deaf children.
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speech vocabulary and the education of children using cochlear implants oral or Total Communication
Journal of Speech Language and Hearing Research, 2000Co-Authors: Carol Mcdonald Conno, Sara J Hiebe, Alexande H Arts, Teresa A ZwolaAbstract:This study examines the relationship between the teaching method, oral or Total Communication, used at children's schools and children's consonant-production accuracy and vocabulary development ove...
M Hanson - One of the best experts on this subject based on the ideXlab platform.
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longitudinal speech perception and language performance in pediatric cochlear implant users the effect of age at implantation
Ear and Hearing, 2014Co-Authors: Camille C Dunn, Elizabeth A Walker, Jake Oleson, Maura Kenworthy, Van Voorst T, J B Tomblin, Helena Ji, Karen Iler Kirk, Bob Mcmurray, M HansonAbstract:Few studies have examined the long-term effect of age at implantation on outcomes using multiple data points in children with cochlear implants. The goal of this study was to determine whether age at implantation has a significant, lasting impact on speech perception, language, and reading performance for children with prelingual hearing loss.A linear mixed-model framework was used to determine the effect of age at implantation on speech perception, language, and reading abilities in 83 children with prelingual hearing loss who received cochlear implants by the age of 4 years. The children were divided into two groups based on their age at implantation: (1) under 2 years of age and (2) between 2 and 3.9 years of age. Differences in model-specified mean scores between groups were compared at annual intervals from 5 to 13 years of age for speech perception, and 7 to 11 years of age for language and reading.After controlling for Communication mode, device configuration, and preoperative pure-tone average, there was no significant effect of age at implantation for receptive language by 8 years of age, expressive language by 10 years of age, reading by 7 years of age. In terms of speech-perception outcomes, significance varied between 7 and 13 years of age, with no significant difference in speech-perception scores between groups at ages 7, 11, and 13 years. Children who used oral Communication (OC) demonstrated significantly higher speech-perception scores than children who used Total Communication (TC). OC users tended to have higher expressive language scores than TC users, although this did not reach significance. There was no significant difference between OC and TC users for receptive language or reading scores.Speech perception, language, and reading performance continue to improve over time for children implanted before 4 years of age. The present results indicate that the effect of age at implantation diminishes with time, particularly for higher-order skills such as language and reading. Some children who receive cochlear implants after the age of 2 years have the capacity to approximate the language and reading skills of their earlier-implanted peers, suggesting that additional factors may moderate the influence of age at implantation on outcomes over time.
