Mixing
Why does PageRank use 0.85 as a standard damping factor?
$begingroup$
I understand that for a low damping factor, some nodes will rarely be reached and a high damping factor will slow down the algorithm and cause the random walk to be stuck in 'sinks', and as such a middle ground is preferable. However, is there a precise reason for a 0.85 factor ? Does 0.8, 0.9, or 0.75 work just as well ?
linear-algebra probability
asked Jan 28 at 14:06
justworksjustworks
61
$endgroup$
add a comment |
$begingroup$
I understand that for a low damping factor, some nodes will rarely be reached and a high damping factor will slow down the algorithm and cause the random walk to be stuck in 'sinks', and as such a middle ground is preferable. However, is there a precise reason for a 0.85 factor ? Does 0.8, 0.9, or 0.75 work just as well ?
linear-algebra probability
asked Jan 28 at 14:06
justworksjustworks
61
$endgroup$
1
$begingroup$
I'll guess that the reason is already there in your nickname: 0.85 just works.
$endgroup$
– lisyarus
Jan 28 at 14:09
add a comment |
$begingroup$
I understand that for a low damping factor, some nodes will rarely be reached and a high damping factor will slow down the algorithm and cause the random walk to be stuck in 'sinks', and as such a middle ground is preferable. However, is there a precise reason for a 0.85 factor ? Does 0.8, 0.9, or 0.75 work just as well ?
linear-algebra probability
asked Jan 28 at 14:06
justworksjustworks
61
$endgroup$
I understand that for a low damping factor, some nodes will rarely be reached and a high damping factor will slow down the algorithm and cause the random walk to be stuck in 'sinks', and as such a middle ground is preferable. However, is there a precise reason for a 0.85 factor ? Does 0.8, 0.9, or 0.75 work just as well ?
linear-algebra probability
linear-algebra probability
asked Jan 28 at 14:06
justworksjustworks
61
asked Jan 28 at 14:06
justworksjustworks
61
asked Jan 28 at 14:06
justworksjustworks
61
asked Jan 28 at 14:06
justworksjustworks
61
asked Jan 28 at 14:06
justworksjustworks
61
61
1
$begingroup$
I'll guess that the reason is already there in your nickname: 0.85 just works.
$endgroup$
– lisyarus
Jan 28 at 14:09
add a comment |
1
$begingroup$
I'll guess that the reason is already there in your nickname: 0.85 just works.
$endgroup$
– lisyarus
Jan 28 at 14:09
1
1
$begingroup$
I'll guess that the reason is already there in your nickname: 0.85 just works.
$endgroup$
– lisyarus
Jan 28 at 14:09
$begingroup$
I'll guess that the reason is already there in your nickname: 0.85 just works.
$endgroup$
– lisyarus
Jan 28 at 14:09
add a comment |
0
active
oldest
votes
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "69"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3090897%2fwhy-does-pagerank-use-0-85-as-a-standard-damping-factor%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
0
active
oldest
votes
0
active
oldest
votes
active
oldest
votes
active
oldest
votes
Thanks for contributing an answer to Mathematics Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fmath.stackexchange.com%2fquestions%2f3090897%2fwhy-does-pagerank-use-0-85-as-a-standard-damping-factor%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
1
$begingroup$
I'll guess that the reason is already there in your nickname: 0.85 just works.
$endgroup$
– lisyarus
Jan 28 at 14:09