Instead of finding the longest common subsequence, let us try to determine the length of the LCS. Then tracking back to find the LCS. Consider a1a2…am and b1b2…bn. Case 1: am=bn. The LCS must contain am, we have to find the LCS of a1a2…am-1 and b1b2…bn-1. Case 2: am≠bn. Wehave to find the LCS of a1a2…am-1 and b1b2…bn, and a1a2…am and b b b b1b2…bn-1 Let A = a1 a2 … am and B = b1 b2 … bn Let li j denote the length of the longest i,g g common subsequence of a1 a2 … ai and b1 b2 … bj. li,j = li-1,j-1 + 1 if ai=bj max{ L L } a≠b i-1,j, i,j-1 if ai≠j L0,0 = L0,j = li,0 = 0 for 1≤i≤m, 1≤j≤n.
標(biāo)簽： the subsequence determine Instead
上傳時(shí)間： 2013-12-17
上傳用戶：evil
li> <li>MATLAB code to perform Monte Carlo simulation for getting price of an European swaption under the libor Market Model (LMM) framework.
標(biāo)簽： simulation European swaption perform
上傳時(shí)間： 2014-11-30
上傳用戶：shus521
li> <li>充電器方案,為SLA，NICd,NiMH和li-Lon電池設(shè)計(jì)的充電器
上傳時(shí)間： 2013-12-28
上傳用戶：zhouli
li> <li>哈夫曼樹又稱最優(yōu)二叉樹，是一種帶權(quán)路徑長(zhǎng)度最短的二叉樹。所謂樹的帶權(quán)路徑長(zhǎng)度，就是樹中所有的葉結(jié)點(diǎn)的權(quán)值乘上其到根結(jié)點(diǎn)的路徑長(zhǎng)度（若根結(jié)點(diǎn)為0層，葉結(jié)點(diǎn)到根結(jié)點(diǎn)的路徑長(zhǎng)度為葉結(jié)點(diǎn)的層數(shù)）。樹的帶權(quán)路徑長(zhǎng)度記為WPL=(W1*L1+W2*L2+W3*L3+...+Wn*Ln)，N個(gè)權(quán)值Wi(i=1,2,...n)構(gòu)成一棵有N個(gè)葉結(jié)點(diǎn)的二叉樹，相應(yīng)的葉結(jié)點(diǎn)的路徑長(zhǎng)度為li(i=1,2,...n)。可以證明哈夫曼樹的WPL是最小的。
上傳時(shí)間： 2017-06-09
上傳用戶：wang5829
li> <li>VHDL implementation of the twofish cipher for 128,192 and 256 bit keys. The implementation is in library-like form All needed components up to, including the round/key schedule circuits are implemented, giving the flexibility to be combined in different architectures (iterative, rolled out/pipelined etc). Manual in English is included with more details about how to use the components and/or how to optimize some of them. All testbenches are provided (tables, variable key/text, ECB/CBC monte carlo) for 128, 192 and 256 bit key sizes, along with their respective vector files.
標(biāo)簽： implementation twofish cipher VHDL
上傳時(shí)間： 2017-06-25
上傳用戶：王小奇
li> <li>On the implementation and usage of SDPT3 – a Matlab software package for semidefinite-quadratic-linear programming, version 4.0
標(biāo)簽： semidefinite-quadratic-li implementation software package
上傳時(shí)間： 2014-11-30
上傳用戶：ayfeixiao
li> <li>metricmatlab ch ¬ ng 4 Ma trË n - c¸ c phÐ p to¸ n vÒ ma trË n. 4.1 Kh¸ i niÖ m: - Trong MATLAB d÷ liÖ u ® Ó ® a vµ o xö lý d íi d¹ ng ma trË n. - Ma trË n A cã n hµ ng, m cét ® î c gä i lµ ma trË n cì n m. § î c ký hiÖ u An m - PhÇ n tö aij cñ a ma trË n An m lµ phÇ n tö n» m ë hµ ng thø i, cét j . - Ma trË n ® ¬ n ( sè ® ¬ n lÎ ) lµ ma trË n 1 hµ ng 1 cét. - Ma trË n hµ ng ( 1 m ) sè liÖ u ® î c bè trÝ trª n mét hµ ng. a11 a12 a13 ... a1m - Ma trË n cét ( n 1) sè liÖ u ® î c bè trÝ trª n 1 cét.
標(biāo)簽： metricmatlab 203 184 tr
上傳時(shí)間： 2017-07-29
上傳用戶：來茴
li> <li>驅(qū)動(dòng)程序溝通著硬件和應(yīng)用軟件，而驅(qū)動(dòng)工程師則溝通著硬件工程師和應(yīng)用 軟件工程師。隨著通信、電子行業(yè)的迅速發(fā)展，全世界每天都會(huì)有大量的新芯片 被生產(chǎn)，大量的新電路板被設(shè)計(jì)，因此，也會(huì)有大量設(shè)備驅(qū)動(dòng)需要開發(fā)。這些設(shè) 備驅(qū)動(dòng)，或運(yùn)行在簡(jiǎn)單的單任務(wù)環(huán)境中，或運(yùn)行在 VxWor ks、li nux、Wi ndows 等多任務(wù)操作系統(tǒng)環(huán)境中，發(fā)揮著不可替代的作用。
標(biāo)簽： linux設(shè)備驅(qū)動(dòng)開發(fā)詳解_宋寶華
上傳時(shí)間： 2015-10-31
上傳用戶：fyzg
li> <li>The AP2406 is a 1.5Mhz constant frequency, slope compensated current mode PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell lithium-Ion (li+) battery. The AP2406 can supply 600mA of load current from a 2.5V to 5.5V input voltage. The output voltage can be regulated as low as 0.6V. The AP2406 can also run at 100% duty cycle for low dropout operation, extending battery life in portable system. Idle mode operation at light loads provides very low output ripple voltage for noise sensitive applications. The AP2406 is offered in a low profile (1mm) 5-pin, thin SOT package, and is available in an adjustable version and fixed output voltage of 1.2V, 1.5V and 1.8V
標(biāo)簽： 2406 AP 技術(shù)手冊(cè)
上傳時(shí)間： 2017-02-23
上傳用戶：w124141
li> <li>lithium–sulfur batteries are a promising energy-storage technology due to their relatively low cost and high theoretical energy density. However, one of their major technical problems is the shuttling of soluble polysulfides between electrodes, resulting in rapid capacity fading. Here, we present a metal–organic framework (MOF)-based battery separator to mitigate the shuttling problem. We show that the MOF-based separator acts as an ionic sieve in lithium–sulfur batteries, which selectively sieves li+ ions while e ciently suppressing undesired polysulfides migrating to the anode side. When a sulfur-containing mesoporous carbon material (approximately 70 wt% sulfur content) is used as a cathode composite without elaborate synthesis or surface modification, a lithium–sulfur battery with a MOF-based separator exhibits a low capacity decay rate (0.019% per cycle over 1,500 cycles). Moreover, there is almost no capacity fading after the initial 100 cycles. Our approach demonstrates the potential for MOF-based materials as separators for energy-storage applications.
上傳時(shí)間： 2017-11-23
上傳用戶：653357637
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