Many new and improved clustering algorithms have been proposed, but it is still hard to find a single algorithm to explore variety of structures of data objects.

尽管目前许多新型或改进的算法被提出，但仍然难以找到一种单一的算法可以探索各种数据对象分布结构。

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Based on detailed analysis of variety of improvements on ECDSA, a new improved algorithm T-ECDSA is proposed.

对多种ECDSA的改进方案进行详细分析的基础上，提出一种新的改进算法t - ECDSA。

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Samsung's first Android 4.0 (Ice Cream Sandwich)-powered tablet offers a variety of new and improved Android OS features.

ENGADGET: Samsung unveils Galaxy Tab 2 (7.0), offers Ice Cream Sandwich on a seven-inch platter (Updated: video)