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An Efficient Multiplierless Transform algorithm for Video Coding
This paper presents an efficient algorithm to accelerate software video encoders/decoders by reducing the number of arithmetic operations for Discrete Cosine Transform (DCT). A multiplierless Ramanujan Ordered Number DCT (RDCT) is presented which computes the coefficients using shifts and addition operations only. The reduction in computational complexity has improved the performance of the video codec by almost 58% compared with the commonly used integer DCT. The results show that significant computation reduction can be achieved with negligible average peak signal-to-noise ratio (PSNR) degradation. The average structural similarity index matrix (SSIM) also ensures that the degradation due to the approximation is minimal.
Design And Evaluation of Time Slot Assignment Algorithm For IEEE 802.16j Rela...
In IEEE 802.16j relay networks, wireless communications are carried out based on TDMA where the wireless network resources are divided into multiple time slots and they are assigned to wireless links between relay nodes as transmission opportunities. The network performance is improved by decreasing the total number of different time slots assigned to all links in a single scheduling cycle, because it brings the increase in the transmission opportunities of the links per unit time. Although it can be achieved when multiple links utilize the same time slot, the capacity of such links is degraded due to the radio interference. On the other hand, since all links in the network need to have enough time slots to accommodate their traffic load, degrading the link capacity may increase the total number of different time slots in the scheduling cycle. Therefore, we should determine the time slot assignment by considering the above-mentioned tradeoff relationship. In this paper, we propose heuristic algorithms for time slot assignment problem in IEEE 802.16j relay networks, and evaluate them through extensive simulation experiments. Two algorithms based on different heuristic are introduced. One algorithm assigns a set of time slots to links by a greedy approach. The other algorithm determines a set of links that use a time slot by a brute-force search for maximizing the total link capacity. Performance evaluation results exhibit that the proposed algorithms reduces around 34% and 39% of the total time slots compared with the case where no link utilizes the same time slot, respectively. Meanwhile, they also show that calculation time of the latter algorithm is longer than that of the former algorithm to reduce the total time slots. Thus, we show that there is a tradeoff between performance and calculation time.
Commencement Speech
Anatoli Boukreev was an elite Russian mountaineer who ascended 11 of the world's highest peaks without supplemental oxygen. He viewed mountaineering as a way to celebrate creation and find spiritual renewal by gaining perspective on his past and future from high summits. The document then draws parallels between mountaineering and education, describing how gaining "elevation" through effort, teamwork, structured training and acclimatization can provide clarity on opportunities ahead, just as reaching advanced base camp allows clearer vision of a summit. It encourages graduates to appreciate their accomplishments while dreaming of future goals.
NBO Magazine
None But Ourselves (can free our minds) is a digital magazine telling new African stories, through features and opinion pieces.
بررسی دولت الکترونیک در ایران
در این ارائه خانم ضحی نوه ابراهیم به بررسی دولت الکترونیک (egovernment)
در ایران می پردازد.
Media evauation
The document discusses how the media product uses and develops conventions of real media. It examines how conventions from magazines like Rolling Stone and Billboard influenced the design of the magazine, such as placing the masthead behind the cover image. While initial plans were influenced by other magazines, the final product developed as new ideas emerged during the process. For example, color schemes were altered to complement the cover model's outfit. The document also discusses how conventions like a three-column contents page were incorporated but the skyline text was developed to promote magazine features rather than sales claims. Overall, the media product challenges conventions of "busy" pop magazines by having a simpler, mature design.
Recommended
An Efficient Multiplierless Transform algorithm for Video Coding
This paper presents an efficient algorithm to accelerate software video encoders/decoders by reducing the number of arithmetic operations for Discrete Cosine Transform (DCT). A multiplierless Ramanujan Ordered Number DCT (RDCT) is presented which computes the coefficients using shifts and addition operations only. The reduction in computational complexity has improved the performance of the video codec by almost 58% compared with the commonly used integer DCT. The results show that significant computation reduction can be achieved with negligible average peak signal-to-noise ratio (PSNR) degradation. The average structural similarity index matrix (SSIM) also ensures that the degradation due to the approximation is minimal.
Design And Evaluation of Time Slot Assignment Algorithm For IEEE 802.16j Rela...
In IEEE 802.16j relay networks, wireless communications are carried out based on TDMA where the wireless network resources are divided into multiple time slots and they are assigned to wireless links between relay nodes as transmission opportunities. The network performance is improved by decreasing the total number of different time slots assigned to all links in a single scheduling cycle, because it brings the increase in the transmission opportunities of the links per unit time. Although it can be achieved when multiple links utilize the same time slot, the capacity of such links is degraded due to the radio interference. On the other hand, since all links in the network need to have enough time slots to accommodate their traffic load, degrading the link capacity may increase the total number of different time slots in the scheduling cycle. Therefore, we should determine the time slot assignment by considering the above-mentioned tradeoff relationship. In this paper, we propose heuristic algorithms for time slot assignment problem in IEEE 802.16j relay networks, and evaluate them through extensive simulation experiments. Two algorithms based on different heuristic are introduced. One algorithm assigns a set of time slots to links by a greedy approach. The other algorithm determines a set of links that use a time slot by a brute-force search for maximizing the total link capacity. Performance evaluation results exhibit that the proposed algorithms reduces around 34% and 39% of the total time slots compared with the case where no link utilizes the same time slot, respectively. Meanwhile, they also show that calculation time of the latter algorithm is longer than that of the former algorithm to reduce the total time slots. Thus, we show that there is a tradeoff between performance and calculation time.
Commencement Speech
Anatoli Boukreev was an elite Russian mountaineer who ascended 11 of the world's highest peaks without supplemental oxygen. He viewed mountaineering as a way to celebrate creation and find spiritual renewal by gaining perspective on his past and future from high summits. The document then draws parallels between mountaineering and education, describing how gaining "elevation" through effort, teamwork, structured training and acclimatization can provide clarity on opportunities ahead, just as reaching advanced base camp allows clearer vision of a summit. It encourages graduates to appreciate their accomplishments while dreaming of future goals.
NBO Magazine
None But Ourselves (can free our minds) is a digital magazine telling new African stories, through features and opinion pieces.
بررسی دولت الکترونیک در ایران
در این ارائه خانم ضحی نوه ابراهیم به بررسی دولت الکترونیک (egovernment)
در ایران می پردازد.
Media evauation
The document discusses how the media product uses and develops conventions of real media. It examines how conventions from magazines like Rolling Stone and Billboard influenced the design of the magazine, such as placing the masthead behind the cover image. While initial plans were influenced by other magazines, the final product developed as new ideas emerged during the process. For example, color schemes were altered to complement the cover model's outfit. The document also discusses how conventions like a three-column contents page were incorporated but the skyline text was developed to promote magazine features rather than sales claims. Overall, the media product challenges conventions of "busy" pop magazines by having a simpler, mature design.
Inside out
This document discusses the Pixar film Inside Out and the five emotions - Joy, Sadness, Disgust, Fear, and Anger - that are personified inside the mind of the main character Riley. Each emotion plays an important role in helping Riley navigate her experiences and development as a child.
Licencias
El documento define las licencias Creative Commons y explica que son permisos para usar u compartir una obra de forma legal sin reemplazar la inscripción en el registro de propiedad intelectual. Explica que hay diferentes tipos de licencias Creative Commons y que estas licencias pueden aplicarse tanto en el mundo digital como físico.
Clase 4b Punto de articulación
El documento habla sobre el punto de articulación de las consonantes en español. Explica que el punto de articulación indica la zona principal de la cavidad bucal donde el articulador (lengua o labios) produce el sonido. Luego menciona las diferentes zonas articulatorias como las partes de la lengua y los ejemplos de puntos de articulación como bilabial, labiodental, dental y más. Finalmente, divide las clases de sonidos por su punto de articulación.
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This document discusses the Pixar film Inside Out and the five emotions - Joy, Sadness, Disgust, Fear, and Anger - that are personified inside the mind of the main character Riley. Each emotion plays an important role in helping Riley navigate her experiences and development as a child.
Licencias
El documento define las licencias Creative Commons y explica que son permisos para usar u compartir una obra de forma legal sin reemplazar la inscripción en el registro de propiedad intelectual. Explica que hay diferentes tipos de licencias Creative Commons y que estas licencias pueden aplicarse tanto en el mundo digital como físico.
Clase 4b Punto de articulación
El documento habla sobre el punto de articulación de las consonantes en español. Explica que el punto de articulación indica la zona principal de la cavidad bucal donde el articulador (lengua o labios) produce el sonido. Luego menciona las diferentes zonas articulatorias como las partes de la lengua y los ejemplos de puntos de articulación como bilabial, labiodental, dental y más. Finalmente, divide las clases de sonidos por su punto de articulación.
Manga Nozoki Ana Tomo 6
Blog de Anime: http://animelif-zone.blogspot.com/
Blog de Manga: http://mangalif-zone.blogspot.com.es/
Motivacion y emoción
La motivación y la emoción rigen el comportamiento humano. La motivación se refiere a las fuerzas internas e impulsos que dirigen la conducta hacia metas específicas, y está influenciada por factores fisiológicos, psicológicos e intelectuales. Las emociones son reacciones breves e intensas asociadas con cambios fisiológicos que promueven la supervivencia. Existen varias teorías sobre la motivación y las emociones, pero comparten que ambos procesos energizan y dirigen la conducta humana