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dspace.mit.edu 檢索結果共 84617 筆,本頁資料從第 1 筆到第 12 筆

The information about molecular processes is shared continuously in the form of runnable pathway collections, and biomedical ontologies provide a semantic context to the majority of those pathways. Recent advances in both fields pave the way for a scalable information integration based on aggregate knowledge repositories, but the lack of overall standard ....

By Renato Umeton,Beracah Yankama,Giuseppe Nicosia,C. Forbes Dewey----2016-01-15
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In the Differential Pulse-code Modulation (DPCM) image coding, the intensity of a pixel is predicted as a linear combination of a set of surrounding pixels and the prediction error is encoded. In this paper, we propose the adaptive residual DPCM (ARDPCM) for intra lossless coding. In the ARDPCM, intra residual samples are predicted using adaptive mode-dependent DPCM wei....

By Xun Cai,Jae S. Lim--SPIE--2016-01-15
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RNA-based regulation and CRISPR/Cas transcription factors (CRISPR-TFs) have the potential to be integrated for the tunable modulation of gene networks. A major limitation of this methodology is that guide RNAs (gRNAs) for CRISPR-TFs can only be expressed from RNA polymerase III promoters in human cells, limiting their use for conditional gene regulation. We present new ....

By Lior Nissim,Alexandra Fridkin,Pablo Perez-Pinera,Timothy K. Lu,Samuel Perli,Timothy K. Lu--Elsevier--2016-01-15
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This paper considers the communication and storage costs of emulating atomic (linearizable) multi-writer multi-reader shared memory in distributed message-passing systems. The paper contains two main contributions: 1) We present an atomic shared-memory emulation algorithm that we call Coded Atomic Storage (CAS). This algorithm uses erasure coding methods. In a storage s....

By Viveck R. Cadambe,Muriel Medard,Peter Musial,Nancy Ann Lynch--Institute of Electrical and Electronics Engineers (IEEE)--2016-01-15
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We study the multi-message broadcast problem using abstract MAC layer models of wireless networks. These models capture the key guarantees of existing MAC layers while abstracting away low-level details such as signal propagation and contention.We begin by studying upper and lower bounds for this problem in a standard abstract MAC layer model---identifying an interestin....

By Mohsen Ghaffari,Erez Kantor,Calvin Newport,Nancy Ann Lynch--Association for Computing Machinery (ACM)--2016-01-15
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We argue that in the context of biology-inspired problems in computer science, in addition to studying the time complexity of solutions it is also important to study the selection complexity, a measure of how likely a given algorithmic strategy is to arise in nature. In this spirit, we propose a selection complexity metric χ for the ANTS problem [Feinerman et al.]. For....

By Christoph Lenzen,Calvin Newport,Nancy Ann Lynch,Tsvetomira T. Radeva--Association for Computing Machinery (ACM)--2016-01-15
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Efficient communication in wireless networks is typically challenged by the possibility of interference among several transmitting nodes. Much important research has been invested in decreasing the number of collisions in order to obtain faster algorithms for communication in such networks. This paper proposes a novel approach for wireless communication, which embraces ....

By Keren Censor-Hillel,Bernhard Haeupler,Nancy Ann Lynch,Muriel Medard----2016-01-15
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We introduce the study of the ant colony house-hunting problem from a distributed computing perspective. When an ant colony's nest becomes unsuitable due to size constraints or damage, the colony relocates to a new nest. The task of identifying and evaluating the quality of potential new nests is distributed among all ants. They must additionally reach consensus on a fi....

By Mohsen Ghaffari,Cameron Nicholas Musco,Tsvetomira T. Radeva,Nancy Ann Lynch--Association for Computing Machinery (ACM)--2016-01-15
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We present the first algorithm that implements an abstract MAC (absMAC) layer in the Signal-to-Interference-plus-Noise-Ratio (SINR) wireless network model. We first prove that efficient SINR implementations are not possible for the standard absMAC specification. We modify that specification to an "approximate" version that better suits the SINR model. We give an efficie....

By Magnus M. Halldorsson,Stephan Sebastian Holzer,Nancy Ann Lynch--Association for Computing Machinery (ACM)--2016-01-15
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In this paper, we implement an efficient local broadcast service for the dual graph model, which describes communication in a radio network with both reliable and unreliable links. Our local broadcast service offers probabilistic latency guarantees for: (1) message delivery to all reliable neighbors (i.e., neighbors connected by reliable links), and (2) receiving some m....

By Calvin Newport,Nancy Ann Lynch--Association for Computing Machinery (ACM)--2016-01-15
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This paper considers the communication and storage costs of emulating atomic (linearizable) multi-writer multi-reader shared memory in distributed message-passing systems. The paper contains two main contributions: (1) We present an atomic shared-memory emulation algorithm that we call Coded Atomic Storage (CAS). This algorithm uses erasure coding methods. In a storag....

By Viveck R. Cadambe,Nancy Ann Lynch,Muriel Medard,Peter Musial--Institute of Electrical and Electronics Engineers (IEEE)--2016-01-15
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Students will learn creative design and production methods, working together in small teams to design, develop, and thoroughly test their own original digital games. Design iteration across all aspects of video game development (game design, audio design, visual aesthetics, fiction, and programming) will be stressed. Students will also be required to focus test their ga....

By Philip B. Tan,Richard Eberhardt,Sara Verrilli----2016-01-15
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