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具有挑战性的问题
相关语句
  challenging problem
     Object shape recognition is a challenging problem in the field of pattern recognition and computer vision.
     物体形状的识别是模式识别与计算机视觉领域中的具有挑战性的问题
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     Routing is a challenging problem in multi-hop wireless networks.
     拓扑易变的特点使得路由问题成为多步移动自组网络中具有挑战性的问题
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     The choice of the value of the training error of a neural network is a challenging problem.
     神经网络训练误差值的选取是一个具有挑战性的问题
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     It is a new field correspondingly and a challenging problem for the research of survivability scheme in the multi-granularity optical network.
     对于多粒度光网络生存性机制的研究还是一个相对较新的研究领域,是一个具有挑战性的问题
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     Online detection of similar patterns under arbitrary time scaling of a given time sequence is still a challenging problem.
     在线检测在时间上(X轴)存在任意缩放的相似模式仍是一个具有挑战性的问题
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  challengeable problem
     In research of remanufacturing, optimization design of logistics networks for remanufacturing have become a realistic and challengeable problem, many scholars conducted a lot of researches on remanufacturing system in a certain extent, but not enough, in addition, researches are mainly concentrated on the qualitative analysis.
     在对再制造的研究中,再制造物流网络的优化设计是一个比较现实和具有挑战性的问题,当前国内外有许多学者对这一问题进行了一定的研究,但研究的比较少,而且主要在定性分析上。
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     The moving targets can worse the performance of the tracking systems, because of the complexity, the randomness and the multiplicity of maneuvering, it’s a challengeable problem to track maneuvering targets, which has both theoretically and practically technical difficulties.
     运动目标的机动会使跟踪系统的性能产生恶化,由于机动出现的复杂性、随机性和多样性,对机动目标进行跟踪一直是一个具有挑战性的问题,不管在理论上和实践上都有较高的技术难度。
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     Power System Voltage Stability is a challengeable problem .
     电力系统电压稳定性是一个具有挑战性的问题
短句来源
     Image segmentation is the basic and challengeable problem in image processing field.
     图像分割是图像处理中最基本且具有挑战性的问题
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  “具有挑战性的问题”译为未确定词的双语例句
     Hair styling and its real-time rendering have been very challenging problems in the area of computer graphics.
     然而,如何实现头发的实时绘制以及如何进行头发造型一直是计算机图形学领域的一个非常具有挑战性的问题
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     In computational grid environments, QoS guided scheduling problem is complex and challenging, especially when the tasks have multiple QoS needs.
     实现用户的服务质量QoS是网格的一个重要特征,网格环境下以服务质量为指导的任务调度是一个非常复杂且具有挑战性的问题,特别是在用户的任务具有多种QoS需求的情况下。
短句来源
     In computational grid environments, QoS guided scheduling problem is complex and challenging, especially when the tasks have muldple QoS needs.
     实现用户的服务质量QoS是网格的一个重要特征,网格环境下以服务质量为指导的任务调度是一个非常复杂且具有挑战性的问题,特别是在用户的任务具有多种QoS需求的情况下。
     As the resources under the grid environment are heterogeneous,dynamic and widely distributed,the resource management and scheduling are very complicated.
     由于资源具有广域分布、异构、动态等特性,网格环境下的资源管理和调度是一个非常复杂且具有挑战性的问题
短句来源
     Location management and location predictability are the challenging topics in the mobility management.
     本文就移动性管理领域两个具有挑战性的问题:位置管理和位置预测分别进行了较为详尽的探讨。
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  challenging problem
A challenging problem is to develop a simple and efficient packet routing algorithm for the LEO satellite constellation network.
      
Robot learning in unstructured environments has been proved to be an extremely challenging problem, mainly because of many uncertainties always present in the real world.
      
As we know, carrier offset is a rather challenging problem in CDMA system.
      
In this semantic peer-to-peer environment, indexing semantic element of resource description to support efficient resource location is a difficult and challenging problem.
      
But self-intersections continue to be a challenging problem in the boundary representation of swept volume solids.
      
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  challengeable problem
While the registration of 3D dense objects is a challengeable problem.
      


In the field of isotopic geochemistry, direct dating of sedimentary sequences and early-stage diagenesis has long been proved to be one of the challenging problems. Dirct dating of carbonates by the Pb-Pb method has been developed only in the last few years. This paper reports a successful example of dating corals from Xinjiang. The age of the Carboniferous coral Kueichawphyllum was determined to be 344±7 Ma. It is very coincident with the age got from the Paleontological method. And the authors also got another...

In the field of isotopic geochemistry, direct dating of sedimentary sequences and early-stage diagenesis has long been proved to be one of the challenging problems. Dirct dating of carbonates by the Pb-Pb method has been developed only in the last few years. This paper reports a successful example of dating corals from Xinjiang. The age of the Carboniferous coral Kueichawphyllum was determined to be 344±7 Ma. It is very coincident with the age got from the Paleontological method. And the authors also got another group of ages of 334±25 Ma from the corals. Its geological significance is under discussion. This research shows that a precise stratigraphic age can be obtained from coral samples alone and that the carbonate Pb-Pb dating technique has a great potential in establishing the isotope chronology of sedimentary sequences.

在地球化学领域中,直接解决沉积层序和早期成岩时代的定年问题长期以来被证明是具有挑战性的问题之一。用Pb-Pb同位素方法直接测定沉积碳酸盐岩的年龄是最近几年才发展起来的。本文报道了一个成功的研究新疆珊瑚年龄的例子,得到了石炭系珊瑚化石的年龄为344±7Ma,它与古生物学确定的年龄十分吻合。得到另一组年龄为334±25Ma,它的地质意义在进一步讨论中。这一结果表明,我们可以从单一珊瑚样品中得到一个精确的地层年龄,碳酸盐测年技术在建立沉积层序的绝对年代学中具有相当大的潜力。

As one of the most fundmental, critical and challengable problems in PDC (parallel distributedcomputing), task scheduling has great influence on the execution efficiency of PDC. The existing heuristic taskschedulings based on static task priorities always use it as processor selection policy to make the current taskhave earliest start execution time. On the basis of analysis of the mechanism in priority-based heuristic taskscheduling, the authors illustrate the drawbacks of the processor selection policy mentioned...

As one of the most fundmental, critical and challengable problems in PDC (parallel distributedcomputing), task scheduling has great influence on the execution efficiency of PDC. The existing heuristic taskschedulings based on static task priorities always use it as processor selection policy to make the current taskhave earliest start execution time. On the basis of analysis of the mechanism in priority-based heuristic taskscheduling, the authors illustrate the drawbacks of the processor selection policy mentioned above, and proposea new processor selection policy, i. e, to make the successor of the current task have the earliest start time, andgive the corresponding restraint.

任务调度是并行分布计算中最为基本、最为关键,也最具有挑战性的问题之一,是影响并行分布计算执行效率的一个关键因素.现有的基于任务静态优先级的启发式任务调度方法都是以“当前任务具有最早起始执行时刻”为目标来选择执行处理器.该文在详细分析讨论该种调度方法的基础上,指出了以该目标选择处理器存在的问题及缺点,并提出了以“当前任务的直接后继具有最早起始执行时刻”为目标选择处理器的方法,并给出了相应的约束条件.

The analysis of unknown forms is a challenging and important problem in document processing.Current methods can only tolerate small breaks in form lines. In this paper, a strategy is proposed for analyzingunknown structure and filled forms based on extracted lines. lndividual edges are validated using knowledge of features of the extracted lines and their local proxirnity. ln a process of scanning the horizontal and verticallines, candidate edges are validated and rectangles are generated if their surrounding...

The analysis of unknown forms is a challenging and important problem in document processing.Current methods can only tolerate small breaks in form lines. In this paper, a strategy is proposed for analyzingunknown structure and filled forms based on extracted lines. lndividual edges are validated using knowledge of features of the extracted lines and their local proxirnity. ln a process of scanning the horizontal and verticallines, candidate edges are validated and rectangles are generated if their surrounding edges and their combinationare all valid. To preserve the constraints and make full use of global information, the process is recursivelyapplied. The rectangle extraction can tolerate large breaks in form lines, ignore irrelevant segments and dealwith complex configurations such as embedded rectangles. After rectangle extraction, other form componentsare extracted by searching the remaining segments. Experiments on a collection of forms with handwritten fieldsand documents with tables show that the proposed approach works well even on poor quality images.

模型未知表格的分析是表格识别中文本分析阶段的一个重要且具有挑战性的问题.目前的一般方法仅能容忍表格线的微小断线.文章提出一种基于抽取表格线的分析结构未知表格的策略.利用抽取的表格线的特征知识和局部约束可以选择一些有效边.在扫描水平和垂直表格线时,如果环绕边都有效,则产生一个矩形块,引人迭代可以更好地利用全局信息并使抽取结果满足约束关系.这种矩形块的抽取可以容忍表格线大的断线或不合适的分割,可以处理诸如嵌入矩形块的复杂结构.矩形块被抽取后,表格的其他部件可以通过搜索剩余的部分来抽取.表格测试实验证明,该方法在表格质量很差时仍可以很好地工作.

 
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