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very handy calculator that can calculate a lot of things, including some simple...
非常好用的计算器,可以计算很多东西,包括一些简单函数的求解-very handy calculator that can calculate a lot of things, including some simple function of solution
- 2022-01-26 01:35:11下载
- 积分:1
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一种基于数据访问流的数据库索引优化方法该方法通过集成业务流程模型与数据模型,抽取了流程活动中包含的数据访问操作和流程的控制结构形成数据访问流,分析了数据访问流中...
一种基于数据访问流的数据库索引优化方法该方法通过集成业务流程模型与数据模型,抽取了流程活动中包含的数据访问操作和流程的控制结构形成数据访问流,分析了数据访问流中数据访问操作的频度,为频繁数据访问操作所对应的数据项创建索引,达到改善数据访问性能的目的。实验结果表明,该方法提高了数据查询的速度。-A novel method called data-access-flow based index optimization (DAFIO) is proposed to provide automatic index select for databasein order to improve the data access performance. By integrating the data model and process model of the IT systems and getting data access flow, theDAFIO method can analyze the data access flow to find those data item which are accessed frequently, and then create indexes for these frequentitems. The experiment results show that the novel method is effective to improve the data access performance.
- 2023-04-15 10:50:04下载
- 积分:1
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火车站购票系统
资源描述C++写的购票系统,可以实现查询车次信息,购票,退票等功能,车次信息是提前预定好的,可以自己修改,考虑到了多个站点以及发车时间问题,解决了购票冲突问题,即在不同车站买到同一个座位上的车票。
- 2022-03-28 19:05:10下载
- 积分:1
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同时rear和len分别指示环形队列中队尾元素的位置和内含元素的个数。设计相应的入队和出队算法。...
同时rear和len分别指示环形队列中队尾元素的位置和内含元素的个数。设计相应的入队和出队算法。-At the same time, rear and len, respectively, annular instructions squadron tail queue element containing the location and the number of elements. Design corresponding to the team and the team algorithm.
- 2023-03-12 17:10:04下载
- 积分:1
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表达式求值算法
表达式求值算法
- 2023-08-07 04:20:03下载
- 积分:1
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经典算法:旅行商算法,采用爬上法和分支界限搜索
经典算法:旅行商算法,采用爬上法和分支界限搜索-classical algorithm : traveling salesman algorithm, used to climb up and branch Boundary Search
- 2022-12-17 21:30:03下载
- 积分:1
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先构造一个图 用邻接矩阵存储 然后用分别普利姆算法和克努斯卡尔算法构造其最小生成树...
先构造一个图 用邻接矩阵存储 然后用分别普利姆算法和克努斯卡尔算法构造其最小生成树-First construct a map with the adjacency matrix is stored separately plym algorithm and then construct the minimum spanning tree algorithm克努斯卡尔
- 2023-08-02 07:00:03下载
- 积分:1
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includes a wide variety of classical digital signal processing algorithm source...
包含有各种各样的数字信号处理经典算法源代码,很有用的.-includes a wide variety of classical digital signal processing algorithm source code, very useful.
- 2022-03-01 15:33:27下载
- 积分:1
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Oracle 10g精要 第三版
Oracle 10g精要 第三版-essence of the third edition of Oracle 10g
- 2022-03-23 06:53:53下载
- 积分:1
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Huffman encoding/decoding algorithm using Kruskal Huffman encoding of informatio...
哈夫曼编码/译码 利用克鲁斯卡尔算法计算信息的哈夫曼编码,以便更好的利用通信信道。-Huffman encoding/decoding algorithm using Kruskal Huffman encoding of information in order to better use of communication channel.
- 2022-01-21 06:29:06下载
- 积分:1