Since the Internet is sufficiently established, information on the Web
is significantly enriched every day. It induces a fact that the
information on Web pages has become increasingly useful in daily life.
Therefore, it has become very common for us to refer to information on
the Web, particularly when writing documents or programs. If we want
to revisit the same Web pages to modify some part of a file later, it
can be very hard to track down the Web pages originally referred to.
In this paper, we propose methods for extracting relationships between
files and Web pages based on the co-occurrence of data in Web-access
logs and file-access logs. These relationships are very useful for
revisiting Web pages related to target files. There are two
approaches for merging the logs to analyze co-occurrence in these two
types of access logs, involving a trade-off between accuracy and
execution time. We call them the Pre-Merge and Post-Merge methods.
We have evaluated these two methods using actual access logs.
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