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% identity of the focused and connected documents and |
% identity of the focused and connected documents and |
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% a more prominent target for tracking movement between views. |
% a more prominent target for tracking movement between views. |
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In the following sections, XXX Janne |
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\section{Related work} |
\section{Related work} |
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most current computer systems have not been programmed to handle properly, |
most current computer systems have not been programmed to handle properly, |
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and is usually not visualized at all: icons are used to represent different |
and is usually not visualized at all: icons are used to represent different |
254 |
file {\em types}, instead of the identities of the actual files. |
file {\em types}, instead of the identities of the actual files. |
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Some systems (e.g. KDE) show previews of the files in the icons, |
Some systems (e.g., KDE) show previews of the files in the icons, |
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which is useful but is not the same as showing the identity. |
which is useful but is not the same as showing the identity. |
257 |
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% The concept of ``file'', which was developed early in the history |
% The concept of ``file'', which was developed early in the history |
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For instance, consider a published scientific article |
For instance, consider a published scientific article |
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available through several different URLs on the WWW, |
available through several different URLs on the WWW, |
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e.g.~both through CiteSeer\cite{XXX}, the ACM portal and |
e.g.,~through ResearchIndex\cite{XXX}, the ACM portal and |
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the author's web site. |
the author's web site. |
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Now, when a user downloads and saves one copy, the relationship between |
Now, when a user downloads and saves one copy, the relationship between |
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the local copy and the original on the WWW is severed, so |
the local copy and the original on the WWW is severed, so |
270 |
When following another link to the same article at a different |
When following another link to the same article at a different |
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server, the computer has no idea that the article has already been downloaded |
server, the computer has no idea that the article has already been downloaded |
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(from another server) by the user, |
(from another server) by the user, |
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and that the user has annotated\cite{XXX} that version |
and that the user has annotated that version |
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of the article. |
of the article. |
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The burden of matching the identities and locating the local version, if desired, is on the user. |
The burden of matching the identities and locating the local version, if desired, is on the user. |
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In a system based on identities, all references to the article would be made through |
In a system based on identities, all references to the article would be made through |
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the same identifier. The computer {\em would} know that this is a familiar article |
the same identifier. The computer {\em would} know that this is a familiar article |
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and would also be able to show the user's annotations even in the above case; |
and would also be able to show the user's annotations; |
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it would even be possible to show anyone else's published annotations and links |
it would even be possible to show anyone else's published annotations and links |
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to the article. |
to the article. |
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