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Fig. 7 | EURASIP Journal on Wireless Communications and Networking

Fig. 7

From: A Q-learning-based network content caching method

Fig. 7

Variation trend of average file response time over time. The figure shows the changes of average response time for several policies. The average access time for LRU and FIFO is constantly changing due to the variability of the cache contents of LRU and FIFO, resulting in the loss of cache data. Conversely, TQC and LFU do not exhibit this behavior, thus increasing stability. It can be seen that the convergence of TQC is slower than LFU but the average time cost of TQC after convergence is 6 ms and that of LFU is 26 ms. This indicates that the performance of TQC is superior to that of LFU for dynamic changes of file access

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