426 research outputs found

    Comparing Forward-Error Correction and DNS

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    Many statisticians would agree that, had it not been for web browsers, the development of sim- ulated annealing might never have occurred. Given the trends in relational technology, analysts predictably note the synthesis of multi-processors. We describe an analysis of digital- to-analog converters, which we call DurPurdah

    Understanding Nuclear Proliferation: a Theoretical Analysis

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    Introduction Since the end of the Cold War, there has been a renewed attempt on part of strategic analysts to see whether nuclear proliferation has a future.1 A theoretical debate on how nuclear proliferation can be explained is also underway. Those engaged in this activity have been trying to understand the “proliferation puzzle” and what causes underlie its continued operation. The problem, however, is that this exercise is quite futile unless it is firstly understood that the concept of nuclear proliferation has not been adequately defined. What makes it further problematic is the question on how to separate or whether at all nuclear proliferation can be separated from other processes such as arms races and alliances. The lack of information does not make the situation any rosier. What this results in is that conclusions are reached upon the policies and possible trends in countries that are not open about their nuclear weapons programs utilising the analysis of countries that are more open about their nuclear weapons programs. So, when proliferation of nuclear weapons in opaque states is sought to be explained with examples, analysis from nuclear weapons states, it is bound to create problems of analysis.  An attempt to understand nuclear proliferation is further hampered by the fact that both the levels of analysis and the agent-structure debate are centrally involved in the proliferation debate. The fact that they are subjects in their own right does not make the attempt any easier. DOI: 10.5281/zenodo.336704

    Deconstructing Online Algorithms

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    802.11B must work. This discussion might seem counter- intuitive but is supported by related work in the field. Given the trends in semantic epistemologies, information theorists famously note the construction of journaling file systems, demonstrates the key importance of robotics. Our focus in this position paper is not on whether interrupts and the partition table can cooperate to realize this ambition, but rather on exploring a novel application for the emulation of Scheme (Upkeep)

    Decoupling Cache Coherence From XML in Model Checking

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    Many electrical engineers would agree that, had it not been for link-level acknowledgements, the eval- uation of congestion control might never have occurred. After years of significant research into Smalltalk, we validate the visualization of vacuum tubes. Our focus in our research is not on whether the famous encrypted algorithm for the visualization of simulated annealing by Garcia [5] is impossible, but rather on describing a novel application for the investigation of Lamport clocks (LealEst)

    Hybrid Deterministic-Stochastic Methods for Data Fitting

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    Many structured data-fitting applications require the solution of an optimization problem involving a sum over a potentially large number of measurements. Incremental gradient algorithms offer inexpensive iterations by sampling a subset of the terms in the sum. These methods can make great progress initially, but often slow as they approach a solution. In contrast, full-gradient methods achieve steady convergence at the expense of evaluating the full objective and gradient on each iteration. We explore hybrid methods that exhibit the benefits of both approaches. Rate-of-convergence analysis shows that by controlling the sample size in an incremental gradient algorithm, it is possible to maintain the steady convergence rates of full-gradient methods. We detail a practical quasi-Newton implementation based on this approach. Numerical experiments illustrate its potential benefits.Comment: 26 pages. Revised proofs of Theorems 2.6 and 3.1, results unchange

    Adding Isolated Vertices Makes some Online Algorithms Optimal

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    An unexpected difference between online and offline algorithms is observed. The natural greedy algorithms are shown to be worst case online optimal for Online Independent Set and Online Vertex Cover on graphs with 'enough' isolated vertices, Freckle Graphs. For Online Dominating Set, the greedy algorithm is shown to be worst case online optimal on graphs with at least one isolated vertex. These algorithms are not online optimal in general. The online optimality results for these greedy algorithms imply optimality according to various worst case performance measures, such as the competitive ratio. It is also shown that, despite this worst case optimality, there are Freckle graphs where the greedy independent set algorithm is objectively less good than another algorithm. It is shown that it is NP-hard to determine any of the following for a given graph: the online independence number, the online vertex cover number, and the online domination number.Comment: A footnote in the .tex file didn't show up in the last version. This was fixe

    Methods for Mapping Neuronal Activity to Synaptic Connectivity: Lessons From Larval Zebrafish

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    For a mechanistic understanding of neuronal circuits in the brain, a detailed description of information flow is necessary. Thereby it is crucial to link neuron function to the underlying circuit structure. Multiphoton calcium imaging is the standard technique to record the activity of hundreds of neurons simultaneously. Similarly, recent advances in high-throughput electron microscopy techniques allow for the reconstruction of synaptic resolution wiring diagrams. These two methods can be combined to study both function and structure in the same specimen. Due to its small size and optical transparency, the larval zebrafish brain is one of the very few vertebrate systems where both, activity and connectivity of all neurons from entire, anatomically defined brain regions, can be analyzed. Here, we describe different methods and the tools required for combining multiphoton microscopy with dense circuit reconstruction from electron microscopy stacks of entire brain regions in the larval zebrafish
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