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In the last several years hundreds of thousands of SSDs have been deployed in the data centers of Baidu, China's largest Internet search company. Currently only 40\% or less of the raw bandwidth of the flash memory in the SSDs is delivered by the storage system to the applications. Moreover, because of space over-provisioning in the SSD to accommodate(More)
This paper proposes a mental model approach to support category hierarchy maintenance on sellers' self-input items in e-commerce websites. We conduct co-occurrence analysis between sellers' self-input items and existing website category items, and use Hierarchical Clustering Analysis to explore hierarchical structure and the association relationships hidden(More)
Website users’ mental models can greatly affect their behaviors when looking for information. If their mental models closely resemble the interface designer’s representation model, the users will have an easier time to accomplish their search task. So it is beneficial to quantify the similarity and differences between users’ mental models and the(More)
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