Counting algorithms

Xem 1-20 trên 25 kết quả Counting algorithms
  • In this paper, we will present an efficient method to compute the co-occurrence counts of any pair of substring in a parallel corpus, and an algorithm that make use of these counts to create subsentential alignments on such a corpus. This algorithm has the advantage of being as general as possible regarding the segmentation of text.

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  • This paper investigates the use of machine learning algorithms to label modifier-noun compounds with a semantic relation. The attributes used as input to the learning algorithms are the web frequencies for phrases containing the modifier, noun, and a prepositional joining term. We compare and evaluate different algorithms and different joining phrases on Nastase and Szpakowicz’s (2003) dataset of 600 modifier-noun compounds.

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  • Recent text and speech processing applications such as speech mining raise new and more general problems related to the construction of language models. We present and describe in detail several new and efficient algorithms to address these more general problems and report experimental results demonstrating their usefulness.

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  • Lecture Algorithm design - Chapter 5: Divide and conquer I include all of the following: Mergesort, counting inversions, closest pair of points, randomized quicksort, median and selection. For more details, inviting you refer to the above lesson.

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  • In this topic, we will look at: Justification for analysis, quadratic and polynomial growth, counting machine instructions, Landau symbols, Big-Q as an equivalence relation, little-o as a weak ordering.

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  • Lecture Discrete mathematics and its applications (7/e) – Chapter 3: Algorithms. This chapter presents the following content: Algorithms, example algorithms, algorithmic paradigms, growth of functions, big-o and other notation, complexity of algorithms.

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  • This chapter presents the following content: Applications of recurrence relations, solving linear recurrence relations, divide-and-conquer algorithms and recurrence relations, generating functions, inclusion-Exclusion, applications of inclusion-exclusion.

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  • During the last three decades, public academic research in cryptography has exploded. While classical cryptography has been long used by ordinary people, computer cryptography was the exclusive domain of the world’s militaries since the World War II. Today, state-of the-art computer cryptography is practiced outside the secured walls of the military agencies. The laypersons can now employ security practices that can protect against the most powerful adversaries.

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  • Let us introduce the issues involved in cryptography. First, we need to define some terms; then we give some taxonomies.

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  • There is no fundamental reason that a transaction must abort as aresultofanynondeterministicevent;whensystemsdochoose to abort transactions due to outside events, it is due to practical consideration. After all, forcing all other nodes in a system to wait for the node that experienced a nondeterministic event (such as a hardware failure) to recover could bring a system to a painfully long stand-still.

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  • Tuyển tập các báo cáo nghiên cứu về hóa học được đăng trên tạp chí sinh học đề tài : Development and evaluation of a clinical algorithm to monitor patients on antiretrovirals in resource-limited settings using adherence, clinical and CD4 cell count criteria

    pdf10p sting02 16-01-2012 22 2   Download

  • Once an object has been instantiated, we can use the dot operator to invoke its methods title.length(); Note: A method may return a value or not Example: String s = new String(“Hello"); int count = s.length(); System.out.println("Length of s is " + count);

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  • Lecture Discrete mathematics and its applications (7/e) – Chapter 4: Number theory and cryptography. This chapter presents the following content: Divisibility and modular arithmetic, integer representations and algorithms, primes and greatest common divisors, solving congruences, applications of congruences, cryptography.

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  • This chapter presents the following content: Mathematical induction, strong induction, well-ordering, recursive definitions, structural induction, recursive algorithms, program correctness (not yet included in overheads).

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  • MORE ON VOLTAGE-PROCESSING TECHNIQUES 14.1 COMPARISON OF DIFFERENT VOLTAGE LEAST-SQUARES ALGORITHM TECHNIQUES Table 14.1-1 gives a comparison for the computer requirements for the different voltage techniques discussed in the previous chapter. The comparison includes the computer requirements needed when using the normal equations given by (4.1-30) with the optimum least-squares weight W given by (4.1-32). Table 14.

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  • A routing algorithm constructs routing tables to forward communication packets based on network status information. Rapid inflation of the Internet increases demand for scalable and adaptive network routing algorithms. Conventional protocols such as the Routing Information Protocol (RIP) (Hedrick, 1988) and the Open Shortest-Path First protocol (OSPF) (Comer, 1995) are not adaptive algorithms; they because they only rely on hop count metrics to calculate shortest paths. In large networks, it is difficult to realize an adaptive algorithm based on conventional approaches. ...

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  • For small N one does better to use an algorithm whose operation count goes as a higher, i.e., poorer, power of N , if the constant in front is small enough. For N

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  • For a given category, choose a small set of exemplars (or 'seed words') 2. Count co-occurrence of words and seed words within a corpus 3. Use a figure of merit based upon these counts to select new seed words 4. Return to step 2 and iterate n times 5. Use a figure of merit to rank words for category membership and o u t p u t a ranked list Our algorithm uses roughly this same generic structure, but achieves notably superior results, by changing the specifics of: what counts as co-occurrence; which figures of merit to use for...

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  • RIP version 2 is not a new protocol—it is RIP Version 1 with some additional fields in the route update packet, key among them being subnet mask information in each route entry. The underlying DV algorithms in RIP-2 are identical to those in RIP-1, implying that RIP-2 still suffers from convergence problems and the maximum hop- count limit of 16 hops.

    pdf13p dienham63 14-12-2015 9 2   Download

  • Traditional wisdom holds that once documents are turned into bag-of-words (unigram count) vectors, word orders are completely lost. We introduce an approach that, perhaps surprisingly, is able to learn a bigram language model from a set of bag-of-words documents. At its heart, our approach is an EM algorithm that seeks a model which maximizes the regularized marginal likelihood of the bagof-words documents.

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