We propose a new approach, called dynamic program and erase scaling (DPES), for improving the endurance of NAND flash memory. The DPES approach is based on our key finding that the NAND endurance is dependent on the erase voltage as well as the number of P/E cycles. Since the NAND endurance has a near-linear dependence on the erase voltage, lowering the erase voltage is an effective way of impr...

In NAND flash systems, the mapping table and related metadata information of FTL should be recovered from sudden power loss to provide data consistency. Nowadays, a lot of FTLs have been reported, however, there are little development reports for FTL recovery schemes. In this paper, we design fast metadata logging and recovery scheme to support efficient and fast power loss recovery. The design...

information retrieval can be achieved through computerized processes by generating a list of relevant responses to a query. the document processor, matching function and query analyzer are the main components of an information retrieval system. document retrieval system is fundamentally based on: boolean, vector-space, probabilistic, and language models. in this paper, a new methodology for mat...