floyd s algorithm for the all pairs shortest paths problem
Tiểu luận môn học THIẾT KẾ VÀ PHÂN TÍCH THUẬT TOÁN CÁC ĐƯỜNG ĐI NGẮN NHẤT MỌI CẶP (ALL-PAIRS SHORTEST PATHS)
... trọng s đường ngắn thực tế đưa L(m) = L(n-1) với tất s nguyên m ≥ n – Thủ tục tính toán dãy ma trận cách dùng kỹ thuật bình phương lặp lại Thời gian thực FASTER ALL PAIRS SHORTEST PATHS 0(n3.lgn) ... fillchar(W,sizeof(W),0); for i:=1 to n begin for j:=1 to n read(f,W[i,j]); readln(f); end; close(f); End; Procedure SHORTESTPATHS(L,W:Mang;var K:Mang); var i,j,h:byte; Begin for i:=1 to n for j:=1 ... thủ tục không phức tạp 0(n3) cho phép nhân ma trận Hình sau trình bày đồ thị ma trận L(m) tính toán thủ tục SHOW -ALL- PAIRS- SHORTEST- PATHS VII Cải thiện thời gian thực Mục tiêu không tính toán...
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CÁC ĐƯỜNG ĐI NGẮN NHẤT MỌI CẶP (ALL-PAIRS SHORTEST PATHS)
... đổi ENTEND -SHORTEST- PATHS SHOW -ALL- PAIRSSHORTEST -PATHS để tính toán ma trận Π(1), Π(2), …, Π(n – 1) ma trận L(1), L(2), …, L(n – 1) tính toán 1-8 Thủ tục FASTER -ALL- PAIRS- SHORTEST- PATHS, viết, ... 1) = Wn – chứa trọng s đường ngắn Thủ tục sau tính toán dãy Θ(n4) thời gian SHOW -ALL- PAIRS- SHORTEST- PATHS( W) n ← rows[W] L(1) ← W for m ← to n – L(m) ← ENTEND -SHORTEST- PATHS( L(m – 1), W) return ... đỉnh i đến đỉnh j PRINT -ALL- PAIRS- SHORTEST- PATH(Π, i, j) if i=j then print i else if πij = NiL then print “không tồn đường từ đỉnh i đến đỉnh j” else PRINT -ALL- PAIRS- SHORTEST- PATH(Π, i, πij) print...
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Báo cáo y học: " Derivation and preliminary validation of an administrative claims-based algorithm for the effectiveness of medications for rheumatoid arthritis"
... Effectiveness Gold Standard Table S1 : Sensitivity Analysis Comparing the Effectiveness Algorithm to a Different Definition of the Effectiveness Gold Standard for Biologic Users Table S2 : Sensitivity ... Patients must have satisfied all conditions in order to have met the effectiveness rule Statistical analysis and additional sensitivity analyses We calculated the performance characteristics including ... 3.2) The NPV of the effectiveness algorithm was high (92%), but the PPV was substantially lower (49%) After substituting CDAI < 11 for DAS28 < 3.2 as the gold standard for clinical effectiveness...
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An efficient genetic algorithm for the p median
... pool so the gene pool is not biased Suppose that the population size is equal to kd, for some constant k For the first set of n/p members, we assign the genes 1, 2, , p to the first member, the ... always satisfied Hence, the selections of the fitness function and the encoding satisfy all constraints and no additional effort is needed in the implementation of the algorithm to enforce the constraint ... points 2, 5, 7, and 12 are selected as facility locations This encoding ensures that the last constraint in the formulation is always satisfied 4.2 Fitness function The fitness function is the objective...
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Tài liệu The Proposer''''s Guide for the Green Bank Telescope: GBT Support Sta ff pdf
... dual-beam systems (i.e., two feeds); hence there are always two beams on the sky Nodding is usually used for these systems (see § 4.2) The continuum point-source sensitivity depends on three factors These ... • Sources in a session should be visible at the same time for at least to hours • Sources with Declinations less than the latitude of the GBT should not be in the same session as sources with ... not show the strength of these signals very well as they overpower the system Observers should consult the support scientists before submitting a proposal for this feed C-band Receiver The C-band...
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Đề tài " On Mott’s formula for the acconductivity in the Anderson model " potx
... then be well-defined as its density The conductivity measure ΣEF (dν) is thus an analogous concept to the density of states measure N (dE), whose formal density is the density of states n(E) The ... Wegner s estimate for the density of states [W] The finite volume expression is then controlled by Minami s estimate [M], a crucial ingredient Combining all these estimates, and choosing the size ... Δ(ϑω ) is bounded (uniformly in ω), H(ϑω , Vω ) is essentially self0 The Anderson Hamiltonian adjoint on Hc , and (3.5) holds for some γ given in (2.1) satisfies these assumptions with ϑω = ˙ The...
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Đề tài "Weyl’s law for the cuspidal spectrum of SLn " pptx
... purpose of Section is to prove estimates for the growth of the number of poles of Rankin-Selberg L-functions in the critical strip We use these results in Section to establish the key estimates for ... arithmetic subgroup An important problem in the theory of automorphic forms is the question of the existence and the construction of cusp forms for Γ By Langlands’ theory of Eisenstein series [La], cusp ... sij satisfy | Re(sij )| < 1/2 and the rij s are integers The proof in the case F = R is essentially the same We only have to check the different possible cases for the L-factors as listed above...
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A User’s Guide for the Uniform Bank Performance Report potx
... taxes, securities gains or losses, and extraor dinary items, plus the provision for possible loan and lease losses divided by net loan and lease losses If gross recoveries exceed gross losses, ... this page for all banks Less: Loan and Lease Allowance The allowance for loan and lease losses Real Estate Loans Total of domestic-office loans secured by real estate Gross loans and leases, less ... leases), other real estate owned, acceptances and other assets divided by average total assets Total Assets Assets, Percent of Average Assets Loans Held For Sale Average loans and leases held for...
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The Expedition to Borneo of H.M.S. Dido For the Suppression of Piracy pptx
... Fowls and goats seem the only other means of subsistence of these people The geological features of the country are easily described Vast masses of granite rock are scattered along the coast; for ... for rumah, house; besi for besar, great "Like the rest of the Dyaks, the Sibnowans adorn their houses with the heads of their enemies; but with them this custom exists in a modified form; and I ... discovery in prospectu possesses great attractions for the imagination, the hardship, danger, and thousand other rude realities, soon dissipate the illusion, and leave the aspirant longing for...
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Báo cáo khoa học: "An Extension of Earley''''s Algorithm for S-Attributed Grammars" pdf
... derivation of the attributed final state S[ S. al S. an] _1_.,0, ±k>, where S is the start symbol of the grammar and S. al S. a n the attribute occurrences of S associated with that state, the algorithm ... Earley 's algorithm, except for a constant multiplicative factor, dependent on the grammar and the size of the partitions selected for attribute domains Since the size of the state sets possible ... on attributes associated with the parent or sisters of X We say the grammar is S- attributed if it contains only synthesized attributes A more general and practically important class of L-attributed...
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báo cáo hóa học:" Denoising Algorithm for the 3D Depth Map Sequences Based on Multihypothesis Motion Estimation" pptx
... Philips z Finally, we evaluate the proposed algorithm on sequences obtained using the Swiss Ranger TOF sensor All sequences used for the evaluation of the denoising algorithm were acquired using the ... depth frames whose PSNR is median value of the PSNR values of each of the 200 frame sets Values of PSNR for denoised sequences created using the Swiss Ranger TOF sensor are shown in Figs 10, 11 ... removes noise in these regions quite successfully Moreover, the edges of the books on the shelf, small surfaces like chairs and circular object in the shelf are better preserved than when denoised...
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Báo cáo hóa học: " An Improved Algorithm for the Piecewise-Smooth Mumford and Shah Model in Image Segmentation" docx
... of this paper is organized as follows Section describes the MS functional along with several variants, and introduces the notation Section describes the improved algorithm Some results of the numerical ... under the MS-Windows operating system The algorithm has been implemented in the Visual C++ 6.0 For comparison we have used the following parameter values with the time step Δt = 0.1, space steps ... develop the level set function φ on the diffused image instead of the extensions of u+ and u− Because the smoothing operator will blur the boundaries of objects, the contours or edges of the diffused...
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Báo cáo hóa học: " A Generalized Algorithm for the Generation of Correlated Rayleigh Fading Envelopes in Wireless Channels" ppt
... separation, such as in OFDM systems, and as functions of spatial separation between transmission antennas, such as in MIMO systems These discussions were originally derived in [3, 9], respectively This ... such as in OFDM systems, and as functions of spatial separation between transmission antennas, such as in MIMO systems, respectively In Section 4, we propose a very general, straightforward algorithm ... easy task in our algorithm The key for the success of this task is the modification in steps and of our algorithm (see Section 4.4), where the variances of N complex Gaussian random variables...
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