Xem 1-20 trên 538 kết quả Metrics
  • Giáo trình Không gian Metric - Phần 1 giới thiệu đến người học các kiến thức về tập hợp số thực, lực lượng của các tập hợp, không gian Metric, khái niệm - bài tập - ánh xạ liên tục của không gian Metric. Tham khảo tài liệu để có kiến thức tổng hợp về Không gian Metric.

    pdf37p couple 18-06-2014 581 293   Download

  • Tham khảo tài liệu 'ball bearing 6201 metric', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    pdf20p nguyenphuong_28 29-04-2010 180 105   Download

  • Tham khảo phần 2 của cuốn giáo trình Không gian Metric có nội dung giới thiệu về không gian Metric đầy đủ, không gian compact, không gian liên thông. Bên cạnh lý thuyết, phần 2 còn có bài tập bổ sung giúp người học củng cố kiến thức một cách có hệ thống.

    pdf51p couple 18-06-2014 326 152   Download

  • Trong toán học, một không gian mêtric (tiếng Anh: metric space) là một tập hợp mà trong đó khái niệm về khoảng cách giữa các phần tử được định nghĩa. Không gian mêtric gần nhất với hiểu biết trực quan của con người là không gian Euclid ba chiều. Mêtric Euclid của không gian này định nghĩa khoảng cách giữa hai điểm là độ dài đoạn thẳng nối chúng.

    pdf44p dinhvansao 25-05-2013 97 39   Download

  • We introduce the notion of cotype of a metric space, and prove that for Banach spaces it coincides with the classical notion of Rademacher cotype. This yields a concrete version of Ribe’s theorem, settling a long standing open problem in the nonlinear theory of Banach spaces. We apply our results to several problems in metric geometry. Namely, we use metric cotype in the study of uniform and coarse embeddings, settling in particular the problem of classifying when Lp coarsely or uniformly embeds into Lq . We also prove a nonlinear analog of the Maurey-Pisier theorem, and use it to...

    pdf53p dontetvui 17-01-2013 30 6   Download

  • This is the second volume containing examples from Functional analysis. The topics here are limited to Topological and metric spaces, Banach spaces and Bounded operators. Unfortunately errors cannot be avoided in a first edition of a work of this type. However, the author has tried to put them on a minimum, hoping that the reader will meet with sympathy the errors which do occur in the text.

    pdf96p sn_buon 29-11-2012 28 7   Download

  • We classify the measure theoretic attractors of general C 3 unimodal maps with quadratic critical points. The main ingredient is the decay of geometry. 1. Introduction 1.1. Statement of results. The study of measure theoretical attractors occupied a central position in the theory of smooth dynamical systems in the 1990s. Recall that a forward invariant compact set A is called a (minimal) metric attractor for some dynamics if the basin of attraction B(A) := {x : ω(x) ⊂ A} of A has positive Lebesgue measure and B(A ) has Lebesgue measure zero for every forward invariant compact set...

    pdf17p tuanloccuoi 04-01-2013 18 5   Download

  • Let g be a scattering metric on a compact manifold X with boundary, i.e., a smooth metric giving the interior X ◦ the structure of a complete Riemannian manifold with asymptotically conic ends. An example is any compactly supported perturbation of the standard metric on Rn . Consider the operator H = 1 ∆ + V , where ∆ is the positive Laplacian with respect to g and V is a 2 smooth real-valued function on X vanishing to second order at ∂X. Assuming that g is nontrapping, we construct a global parametrix U(z, w, t) for the kernel...

    pdf38p noel_noel 17-01-2013 24 4   Download

  • Any sphere S n admits a metric of constant sectional curvature. These canonical metrics are homogeneous and Einstein, that is the Ricci curvature is a constant multiple of the metric. The spheres S 4m+3 , m 1, are known to have another Sp(m + 1)-homogeneous Einstein metric discovered by Jensen [Jen73]. In addition, S 15 has a third Spin(9)-invariant homogeneous Einstein metric discovered by Bourguignon and Karcher [BK78]. In 1982 Ziller proved that these are the only homogeneous Einstein metrics on spheres [Zil82]. ...

    pdf25p noel_noel 17-01-2013 22 3   Download

  • This paper concerns the implementation and testing of similarity metrics for the alignment of phonetic segments in transcriptions of children's (mis)articulations with the adult model. This has an obvious application in the development of software to assist speech and language clinicians to assess clients and to plan therapy. This paper will give some of the background to this general problem, but will focus on the computational and linguistic aspect of the alignment problem.

    pdf6p bunrieu_1 18-04-2013 17 3   Download

  • (BQ) Ebook ISO metric black hexagon bolts, screws and nuts — Specification gives the general dimensions and tolerances of black hexagon bolts, screws and nuts with ISO metric threads, in diameters from 5 mm to 68 mm inclusive. Mechanical properties are included for steel bolts, screws and ordinary plain nuts, which may be produced by hot or cold forging at the option of the manufacturer.

    pdf0p hac_rua 21-03-2015 21 3   Download

  • Mục đích của luận án là mở rộng một số kết quả về sự tồn tại điểm bất động của một số lớp ánh xạ trên các lớp không gian như: Không gian mêtric, không gian mêtric riêng, không gian mêtric riêng có thứ tự bộ phận và tìm hiểu ứng dụng của chúng trong việc chứng minh sự tồn tại nghiệm của một số lớp phương trình tích phân và bài toán cân bằng không cộng tác trong lý thuyết trò chơi.

    pdf115p change01 06-05-2016 39 13   Download

  • Many machine translation (MT) evaluation metrics have been shown to correlate better with human judgment than BLEU. In principle, tuning on these metrics should yield better systems than tuning on BLEU. However, due to issues such as speed, requirements for linguistic resources, and optimization difficulty, they have not been widely adopted for tuning.

    pdf10p nghetay_1 07-04-2013 27 2   Download

  • Hierarchical HMM (HHMM) parsers make promising cognitive models: while they use a bounded model of working memory and pursue incremental hypotheses in parallel, they still achieve parsing accuracies competitive with chart-based techniques. This paper aims to validate that a right-corner HHMM parser is also able to produce complexity metrics, which quantify a reader’s incremental difficulty in understanding a sentence.

    pdf10p hongdo_1 12-04-2013 24 2   Download

  • We initiate a study comparing effectiveness of the transformed spaces learned by recently proposed supervised, and semisupervised metric learning algorithms to those generated by previously proposed unsupervised dimensionality reduction methods (e.g., PCA). Through a variety of experiments on different realworld datasets, we find IDML-IT, a semisupervised metric learning algorithm to be the most effective.

    pdf5p hongdo_1 12-04-2013 25 3   Download

  • We introduce a novel semi-automated metric, MEANT, that assesses translation utility by matching semantic role fillers, producing scores that correlate with human judgment as well as HTER but at much lower labor cost. As machine translation systems improve in lexical choice and fluency, the shortcomings of widespread n-gram based, fluency-oriented MT evaluation metrics such as BLEU, which fail to properly evaluate adequacy, become more apparent.

    pdf10p hongdo_1 12-04-2013 20 2   Download

  • One of the major challenges facing statistical machine translation is how to model differences in word order between languages. Although a great deal of research has focussed on this problem, progress is hampered by the lack of reliable metrics. Most current metrics are based on matching lexical items in the translation and the reference, and their ability to measure the quality of word order has not been demonstrated.

    pdf9p hongdo_1 12-04-2013 15 2   Download

  • This paper presents a novel metric-based framework for the task of automatic taxonomy induction. The framework incrementally clusters terms based on ontology metric, a score indicating semantic distance; and transforms the task into a multi-criteria optimization based on minimization of taxonomy structures and modeling of term abstractness. It combines the strengths of both lexico-syntactic patterns and clustering through incorporating heterogeneous features. The flexible design of the framework allows a further study on which features are the best for the task under various conditions. ...

    pdf9p hongphan_1 14-04-2013 17 2   Download

  • This brief paper, which is itself an extended abstract for a forthcoming paper, describes a metric that can be easily computed during either b o t t o m - u p or top-down construction of a parse tree for ranking the desirability of alternative parses. In its simplest form, the metric tends to p r e f e r trees in which constituents are pushed as far down a s possible, but by appropriate modification of a c o n s t a n t in the formula other behavior can be obtained also. This paper includes an...

    pdf3p bungio_1 03-05-2013 18 2   Download

  • We propose an automatic machine translation (MT) evaluation metric that calculates a similarity score (based on precision and recall) of a pair of sentences. Unlike most metrics, we compute a similarity score between items across the two sentences. We then find a maximum weight matching between the items such that each item in one sentence is mapped to at most one item in the other sentence.

    pdf8p hongphan_1 15-04-2013 22 1   Download


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