查询词典 at the threshold of

During the updating and mining of TCIS-Tree several optimal strategies, such as data filtering, heuristically and dynamically adjusting the pruning threshold and mining threshold, and so on, have been explored to make our method efficient.

在TCIS-Tree的更新和挖掘过程中，采用数据过滤、启发式动态调整剪枝阈值、挖掘阈值等若干优化措施，有效地提高算法的时空效率。

Two new data structures TOPSIS-Tree and RELIS are devised to maintain potential significant itemsets and mined results, respectively. Moreover, three optimal strategies are exploited to reduce time and space consumption of the algorithms:(1) pruning impotent nodes in the newest basic window whenever a sliding window updates,(2) promoting support threshold during mining process dynamically, and (3) adjusting pruning threshold adaptively and heuristically.

设计概要结构TOPSIS-Tree和RELIS分别存储和记录流数据的摘要信息和当前滑动窗口的挖掘结果，并设计了三种优化策略用以提高算法的时空效率：(1)滑动窗口更新时剪枝最新基本窗口的无功节点；(2)挖掘过程中动态提升支持度阈值；(3)启发式自适应调整剪枝阈值。

We indicated from our test that the treatment concentration of 50 mg· L- 1 and exporsure time with 4h by the herbicide were believed to be the threshold concentration and threshold time for causing abnormal cell mitosis in Secale cereale and Hordeum vulgar, respectively.

人们对它的作用机理和作用部位[2]、它在土壤中吸收和降解[4]以及草甘磷对土壤微生物群落的影响作过一定的研究[5]，并已开始抗草甘磷转基

Chose 30 health adults and 40 patients of chronic alcoholism of daily tippled alcohol more than 250mL and have five more years of tippling history, tested the thermal sensation threshold and vibration threshold of left hypothenar, left index finger, left instep and left first toe, and also tested the sense and motion conduction velocity of left nervus tibialis, median nerve and nervus ulnaris.

选择20例由腰椎间盘突出所致坐骨神经痛发作的患者，分别测定患者左右两侧小腿外侧和足背外缘的皮肤的温度觉和外踝的振动觉，并同时测定患侧的胫神经感觉传导速度和H反射。

Provided is a threshold determining device (10) for determining a threshold, at which the ratio for the coincidence/incoincidence of each data to become less than a required value becomes a required assurance value or more.

提供了一种用于确定阈值的阈值确定设备，在该阈值，小于要求值的每个数据的假匹配率是要求的保证值或者更大。

It is shown that the reaction U+CO→CUO with a long-lived intermediate complex has no threshold energy, which agrees with the potenlial surface. When the collision energy is greater than 418.4 kJ/mol, the intercharge reaction increases, until the CUO molecule will decompose into U, C, O completely, and these reactions have threshold energy.

结果表明：在碰撞能低(15kJ/mol)时可以生成长寿命络合物CUO(X^3A)，并且该络合反应是无阈能反应；碰撞能大于418.4kJ/mol后，先后出现置换产物UO和UC；随着碰撞能进一步增大，CUO分子将被完全碰散成U，C和O原子，而且反应U+CO(0， 0)→UO+C，U+CO(0， 0)→UC+O和U+CO(0， 0)→U+O+C是有阈能反应。

The initial threshold could be chosen by using Otsu algorithm, and in the iteration process, an optimal threshold was determined by maximizing the MI between the original image and the segmented image.The effectiveness of the proposed approach was evaluated by applying it to the microphotographic.

首先利用Otsu算法确定全局阈值作为初值，以互信息量为目标函数，在小范围内计算分割图像与原图像的互信息量，互信息量达到最大时的阈值即为最优值，这是将图像配准方法用于分割的一种创新性尝试。

In OverEasy mode, the threshold of compression is defined as the middle of the OverEasy threshold region, that is,"half-way" into compression.

在OVEREASY模式中，压缩阀值被定义成OVEREASY压缩区域的中点，也就是说，&中途&被压缩的。

In OverEasy mode, signals begin to gradually activate the 166XL's gain change circuitry as they approach the THRESHOLD reference level and they do not get fully processed in the manner defined by the RATIO control until they have passed somewhat above the THRESHOLD reference level.

在OVEREASY模式（OVEREASY按钮按下时），当输入信号逼近压缩阀值参考电平时，信号开始逐渐地被166XL增益改变电路激活，但它们不会完全地被压缩比所定义的方式去处理，直到他们已经稍微通过这个压缩阀参考电平。

The improved threshold retracking algorithm is optimized in the paper. Several waveform retracking algorithms are analyzed. Then a waveform retracking system is programmed. Several retracking methods are used to retrack the EnviSat waveform over the Mediterranean Sea. The improved threshold retracking algorithm is the most robust retracking method and more suitable for the EnviSat waveform retracking over the coastal Mediterranean.

分析了EnviSat雷达测高波形重定算法，并对Threshold算法进行了优化，开发了波形重定程序；以地中海为实验区，利用几种波形重定方法，对近岸海域的EnviSat测高波形进行重定，认为优化的Threshold算法是几种波形重定算法中最稳健的重定算法，适合于地中海近岸海域EnviSat测高波形的重定，对其他近岸海域的应用也有一定的参考意义。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。