However, the analytical solutions to the optimal portfolio problem are not obtained generally in practical market. What we can do in general is to get the approximations of this problem.
由于现实中组合最优化问题的解析解一般是无法求得的，所以通常能做的是求解问题的近似解。
By adding WAS CE to the WebSphere portfolio, our customers and partners can choose the application server technology appropriate to the problem they are trying to solve.
通过将WAS ce添加到WebSphere组合中，我们的客户和合作伙伴可以选择适用于他们正在解决的问题的应用服务器技术。
So that's the expected return and efficient portfolio frontier problem.
这就是预期收益，和有效边界问题。
Loan portfolio risk is the main risk of commercial Banks. The nonperforming loan caused by the loan allocation mistakes, is the main problem of Chinese Banks industry.
贷款组合风险是商业银行的主要风险，由于贷款组合分配失误造成的新增不良贷款不断产生，是我国目前银行业面临的主要问题。
With the theory of stochastic differential equation, the authors discuss a problem of a class of risk investment portfolio with stochastic character.
利用随机微分方程理论，对一类具有随机特征的风险投资组合问题进行深入研究。
Choosing a replication method to construct the index tracking portfolio is the problem that should be solved firstly in index tracking management.
选择一种复制方法构造指数跟踪组合是指数跟踪管理首先要解决的问题。
It's regretted that the multi-extremum theory of portfolio selection with different fat tails is still a problem that needs to be resolved.
遗憾的是，具有不同厚尾的股票组合的多元极值分布理论，到目前为止仍然是有待解决的问题。
The problem of choosing a substitute for the market portfolio of risk assets in CAPM is discussed.
探讨CAPM中风险资产市场组合的替代品选择问题。
He failed to identify toxic mortgage securities as a big problem in the bank's own portfolio.
他没有能够辨别出有毒的房地产质押在自己的银行债券中是个大问题。
That appears to be a problem, because when valuating a company's worth based on its brand-asset portfolio, many elements differ from company to company.
这里出现了一个问题，每个公司在根据品牌资产来评估偶一公司的价值时，所涉及的元素互不相同。
Abstract: In the process of market expansion, real estate enterprises often faced with some problem of project portfolio selection.
[摘要]房地产企业在市场拓展过程中经常面临项目组合选择问题，这些项目本身存在不确定性同时又相互影响。
In the framework of modern financial theory, the concept and method of minimax design (or worst-case optimization) are proposed for the problem of portfolio choice.
在现代金融理论的基本框架下，提出了证券选择的极大极小设计(即最差情况最优化)的概念与方法。
The author also considered the optimum portfolio selection problem with risk-free assets and gave a instance to show how to solve the problem.
进而，本文考察了加入无风险资产后的最优组合问题，并给出了一个例子的求解。
We discuss the problem of portfolio investment with risk minimization subject to nonnegative investment proportional coefficient.
本文讨论基于最小路径和最小割集的复杂系统可靠性的描述与计算问题。
Then the methods of fuzzy optimization and evolution programming are adopted to study the portfolio investment under a new risk concept, and an algorithm for solving the problem is given.
运用模糊优化和进化规划方法，研究新风险概念下的模糊证券组合选择，并给出了其相应算法。
Then the methods of fuzzy optimization and evolution programming are adopted to study the portfolio investment under a new risk concept, and an algorithm for solving the problem is given.
运用模糊优化和进化规划方法，研究新风险概念下的模糊证券组合选择，并给出了其相应算法。
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