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Browsing MIT Open Access Articles by Title

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  • Kedlaya, Kiran S.; Liu, Ruochuan (Mathematical Sciences Publishers, 2011-01)
    Berger and Colmez (2008) formulated a theory of families of overconvergent étale (φ,Γ)-modules associated to families of p-adic Galois representations over p-adic Banach algebras. In contrast with the classical theory of ...
  • Sun, Jun; Wen, Yonggang; Zheng, Lizhong (Institute of Electrical and Electronics Engineers (IEEE), 2011-06)
    With the emergence of the adaptive bit rate (ABR) streaming technology, the video/content streaming technology is shifting toward a file-based content distribution. That is, video content is encoded into a set of smaller ...
  • Shen, Dawei; Zhang, Wenyi; Reed, David P.; Lippman, Andrew B. (Institute of Electrical and Electronics Engineers, 2009-08)
    The problem of frame synchronization is formulated and investigated for multiple access channels (MAC). Several decision rules for locating the starting positions in continuously transmitted frames are proposed and compared, ...
  • Williams, Richard; Fischer, Christian S.; Nickel, Marcel Dominik Johannes (Springer Berlin Heidelberg, 2009-03)
    Some years ago Gribov developed the so-called supercritical light-quark confinement scenario. Based on physical arguments he conjectured a drastic change in the analytical properties of the quark propagator when the back ...
  • Kochman, Yuval; Wornell, Gregory W. (Institute of Electrical and Electronics Engineers (IEEE), 2012-04)
    We investigate modulation and coding techniques that approach the fundamental limits of communication and key distribution over optical channels, in the regime of simultaneously high photon and bandwidth efficiencies. ...
  • Jornet, Josep Miquel; Stojanovic, Milica; Zorzi, Michele (Institute of Electrical and Electronics Engineers, 2010-10)
    Path loss in an underwater acoustic channel depends not only on the transmission distance, but also on the signal frequency. As a result, the useful bandwidth decreases with distance, a feature not normally present in ...
  • Blondel, Vincent D.; Hendrickx, Julien; Tsitsiklis, John N. (Institute of Electrical and Electronics Engineers, 2009-11)
    We study a model of opinion dynamics introduced by Krause: each agent has an opinion represented by a real number, and updates its opinion by averaging all agent opinions that differ from its own by less than one. We give ...
  • Daskalakis, Constantinos; Frongillo, Rafael; Papadimitriou, Christos H.; Pierrakos, George; Valiant, Gregory (Springer Berlin / Heidelberg, 2010-10)
    Can learning algorithms find a Nash equilibrium? This is a natural question for several reasons. Learning algorithms resemble the behavior of players in many naturally arising games, and thus results on the convergence or ...
  • Undurti, Aditya; How, Jonathan P. (Institute of Electrical and Electronics Engineers, 2010-07)
    This work seeks to address the problem of planning in the presence of uncertainty and constraints. Such problems arise in many situations, including the basis of this work, which involves planning for a team of first ...
  • Tucker, Catherine Elizabeth; Goldfarb, Avi (INFORMS, 2011-05)
    We use data from a large-scale field experiment to explore what influences the effectiveness of online advertising. We find that matching an ad to website content and increasing an ad's obtrusiveness independently increase ...
  • Indyk, Piotr; Magen, Avner; Sidiropoulos, Anastasios; Zouzias, Anastasios (Springer Berlin/Heidelberg, 2010-08)
    We initiate the study of on-line metric embeddings. In such an embedding we are given a sequence of n points X = x [subscript 1],...,x [subscript n] one by one, from a metric space M = (X,D). Our goal is to compute a ...
  • Preis, Ami; Whittle, Andrew; Ostfeld, A.; Perelman, L. (CRC Press, 2009-09)
    A Predictor-Corrector (PC) approach for on-line forecasting of water usage in an urban water system is presented and demonstrated. The M5 Model-Trees algorithm is used to predict water demands and Genetic Algorithms (GAs) ...
  • Whittle, Andrew; Preis, Ami; Ostfeld, Avi (American Society of Civil Engineers (ASCE), 2009-05)
    This paper describes and demonstrates a method for on‐line hydraulic state prediction in urban water networks. The proposed method uses a Predictor‐Corrector (PC) approach in which a statistical data‐driven algorithm is ...
  • Mannor, Shie; Tsitsiklis, John N.; Yu, Jia Yuan (MIT Press, 2009)
    We study online learning where a decision maker interacts with Nature with the objective of maximizing her long-term average reward subject to some sample path average constraints. We de ne the reward-in-hindsight as the ...
  • Lucani, Daniel Enrique; Medard, Muriel; Stojanovic, Milica (Institute of Electrical and Electronics Engineers, 2010-12)
    We study an online random linear network coding approach for time division duplexing (TDD) channels under Poisson arrivals. We model the system as a bulk-service queue with variable bulk size and with feedback, i.e., ...
  • Chunara, Rumi; Chhaya, Vina; Bane, Sunetra; Mekaru, Sumiko R; Chan, Emily H; Freifeld, Clark C; Brownstein, John S. (BioMed Central Ltd, 2012-02)
    Background The objective of this study was to investigate the use of novel surveillance tools in a malaria endemic region where prevalence information is limited. Specifically, online reporting for participatory epidemiology ...
  • Nakatani, Kentaro; Gibson, Edward A. (Cognitive Science Society, Inc., 2010-01)
    This paper reports the results of a self-paced reading experiment in Japanese in which the materials consisted of four versions of successively more nested syntactic structures. It was found that (1) people read the more ...
  • Jaillet, Patrick; Lu, Xin (Wiley, 2010-01)
    The Traveling Salesman Problem (TSP) is a well-known combinatorial optimization problem. We are concerned here with online versions of this problem defi ned on metric spaces. One novel aspect in the paper is the introduction ...
  • Cai, Yang; Daskalakis, Constantinos (Society for Industrial and Applied Mathematics, 2011)
    We prove a generalization of von Neumann's minmax theorem to the class of separable multiplayer zero-sum games, introduced in [Bregman and Fokin 1998]. These games are polymatrix---that is, graphical games in which every ...
  • Medard, Muriel; Thakur, Mohit (IEEE-Globecom, 2010-12)
    The rate optimization for wireless networks with low SNR is investigated. While the capacity in the limit of disappearing SNR per degree of freedom is known to be linear in SNR for fading and non-fading channels, we ...
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