某唱片、磁带工厂根据市场对该厂产品日益增长的要求,拟就3个方案:扩建老厂、建立新厂、将部分生产任务转包给别的工厂。3个方案在产品销路好、销路平常、销路差的情况下,经估算在下一个5年内可获得的益损表见表1,试用最小最大遗憾值进行决策,选定最优方案。
在三个方案的最大遗憾值中,取最小的遗憾值24。
按照最小最大遗憾标准进行决策,可采用扩建老厂的方案。
在(24)选用顺序表,(25)作为线性表的存储结构为宜。
(48)
(49)
(46)
(47)
WWW is popular for its multimedia transmission and friendly(71). Although the speed of network has been improved considerably in recent years, the rapid(72)of using the Internet, the inherited character of delay in the network and the Request/Response working mode of WWW still make the Internet traffic very(73)and give no guarantee on the Quality of Service. Because HTTP has no states, the web server cannot know the users' demand and the users' requests cannot be predicted Taking advantage of a cache mechanism and the time locality of WWW accesses, the browser can preserve the documents ever accessed in the local machine. By this means, for the documents in the local cache, the browser does not need to send the requests to the remote server or to receive the whole responses from the remote one Pre-fetching uses the space locality of accesses First, the users' access requests are predicted according to the users' current request. Secondly, the expected pages are fetched into the local cache when the user is brow sing the current page. Finally, the users can access these pages downloaded from the local cache. And this can reduce the access delay to some degrees. Pre-fetching is one kind of active caches that can cache the pages which are still not requested by the user. The application of pre-fetching technology in the web can greatly reduce the waiting time after users have sent their requests. This paper brings forward an intelligent technique of web pre-fetching, which can speed up fetching web pages. In this technique, we use a simplified WWW data model to represent the data in the cache of web browser to mine the association rules. We store these rules in a knowledge base so as to(74)the user's actions. In the client sides, the agents are responsible for mining the users' interest and pre-fetching the web pages, which are based on the interest association repository. Therefore it is(75)for the users to speed up the browsing.
(43)
(44)
(41)
(42)
The grid computing is a new(66)technology connecting the distributed and(67)resources to the high-speed network and integrating a super-computer of processing capacity. The significance and architecture of the grid computing is explained. Several kernel technology such as OGSI, resource management, task management, task scheduling, high rate communication and security are described. Aiming at the particularity of the grid computing environment a mechanism similar to the technology of the search engine is designed to registry, discovery and(68)the resources in the grid. The whole model of the resource management is built by connecting task manager in the local resource management system to others with P2P model. The task may migrate among the task managers in order to(69)the load. The task users summit may be executed in relatively tight resource set, which will not only decrease the total communication overheads of the whole task but also(70)the performance of the system.
高级经济师考试试题精选练习(1)
高级经济师考试模拟练习题之单选题(1
高级经济师考试试题精选练习(2)
高级经济师考试试题精选练习(3)
高级经济师考试试题:经济法案例试题精
高级经济师考试模拟试题及答案
高级经济师考试试题及答案:单选练习题
高级经济师考试试题:经济法案例试题精
高级经济师考试模拟题及答案练习(1)
高级经济师考试模拟题及答案练习(2)