Webpage Access Record Entropy Filtering

The patent extracts and caches only the most frequently accessed webpages (such as homepages and frequently visited pages) from the complete browsing history, separating them from less important pages. This extraction principle allows the system to maintain a compact cache of high-value pages that can be quickly accessed, while still preserving the option to retrieve complete history when needed, thus resolving the contradiction between history completeness and navigation speed.

The patent applies different quality levels to different pages in the browsing history by identifying and marking frequently accessed pages with higher priority. This local quality differentiation enables the system to provide optimized fast access for important pages while maintaining standard access for others, effectively resolving the contradiction by making the navigation system adaptive to the actual usage patterns of different pages.

The patent performs preliminary action by pre-calculating and storing the navigation paths from deep webpages back to frequently accessed pages (such as homepages) in advance. When a user needs to navigate back, the system can directly retrieve these pre-computed paths instead of performing multiple sequential fallback operations, thus maintaining navigation path integrity while dramatically improving access efficiency.

The patent introduces an intermediary mechanism (the cache system with pre-computed navigation paths) that mediates between the deep webpage and the frequently accessed page. This intermediary provides optimized navigation routes, allowing users to bypass multiple sequential fallback operations while still maintaining the integrity of the navigation path through the cache's structured storage and retrieval mechanisms.

The patent extracts only the most valuable and frequently accessed webpages from the complete browsing history and stores them in the cache, rather than caching all pages. This extraction based on access frequency and importance allows the system to maintain fast access speed for critical pages while minimizing storage space consumption by excluding less important pages from the cache.

The patent changes the parameter of cache storage from storing all pages uniformly to storing only high-priority pages identified by access frequency and importance metrics. This parameter change in the caching strategy enables the system to optimize the balance between access speed and storage space by dynamically adjusting which pages are cached based on their actual usage patterns and value.