Link Analysis: Difference between revisions
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(Created page with "{{DISPLAYTITLE:Link Analysis (Link Analysis)}} == Description == Unlike "flat" document collections, the World Wide Web is hypertext and provides considerable auxiliary information on top of the text of the web pages, such as link structure and link text. With link analysis, we take advantage of the link structure of the Web to produce a global "importance" ranking of every web page that helps search engines and users quickly make sense of the vast heterogeneity of the...") |
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== Parameters == | == Parameters == | ||
$n$: number of pages | |||
$m$: number of hyperlinks | |||
$z$: # of topics/categories | |||
== Table of Algorithms == | == Table of Algorithms == | ||
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| [[The (Stochastic Approach for Link Structure Analysis) SALSA Algorithm (Link Analysis Link Analysis)|The (Stochastic Approach for Link Structure Analysis) SALSA Algorithm]] || 2000 || $O(m^{2} n )$ || $O(n)$? || Exact || Deterministic || [https://dl.acm.org/doi/abs/10.1145/382979.383041 Time] | | [[The (Stochastic Approach for Link Structure Analysis) SALSA Algorithm (Link Analysis Link Analysis)|The (Stochastic Approach for Link Structure Analysis) SALSA Algorithm]] || 2000 || $O(m^{2} n )$ || $O(n)$? || Exact || Deterministic || [https://dl.acm.org/doi/abs/10.1145/382979.383041 Time] | ||
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| [[Randomized HITS (Link Analysis Link Analysis)|Randomized HITS]] || 2001 || $O(m | | [[Randomized HITS (Link Analysis Link Analysis)|Randomized HITS]] || 2001 || $O(m n\log n )$ || $O(n)$ || Exact || Deterministic || [https://dl.acm.org/doi/pdf/10.1145/383952.384003 Time] | ||
|- | |- | ||
| [[PHITS Coheng Chan (Link Analysis Link Analysis)|PHITS Coheng Chan]] || 2000 || $O(m n )$ || $O(nz)$? || Exact || Deterministic || [http://web.cse.msu.edu/~cse960/Papers/LinkAnalysis/phits.pdf Time] | | [[PHITS Coheng Chan (Link Analysis Link Analysis)|PHITS Coheng Chan]] || 2000 || $O(m n )$ || $O(nz)$? || Exact || Deterministic || [http://web.cse.msu.edu/~cse960/Papers/LinkAnalysis/phits.pdf Time] | ||
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== Time Complexity | == Time Complexity Graph == | ||
[[File:Link Analysis - Time.png|1000px]] | [[File:Link Analysis - Time.png|1000px]] | ||
Latest revision as of 09:12, 28 April 2023
Description
Unlike "flat" document collections, the World Wide Web is hypertext and provides considerable auxiliary information on top of the text of the web pages, such as link structure and link text. With link analysis, we take advantage of the link structure of the Web to produce a global "importance" ranking of every web page that helps search engines and users quickly make sense of the vast heterogeneity of the World Wide Web.
Related Problems
Related: InDegree Analysis
Parameters
$n$: number of pages
$m$: number of hyperlinks
$z$: # of topics/categories
Table of Algorithms
| Name | Year | Time | Space | Approximation Factor | Model | Reference |
|---|---|---|---|---|---|---|
| The PAGERANK Algorithm | 1998 | $O(m n )$ | $O(n)$ | Exact | Deterministic | Time |
| The (Hyperlink-Induced Topic Search) HITS Algorithm | 1998 | $O(n^{2} k)$ | $O(n)$ | Exact | Deterministic | Time |
| Kleinberg | 1998 | $O(m^{2} n )$ | Exact | Deterministic | Time | |
| The (Stochastic Approach for Link Structure Analysis) SALSA Algorithm | 2000 | $O(m^{2} n )$ | $O(n)$? | Exact | Deterministic | Time |
| Randomized HITS | 2001 | $O(m n\log n )$ | $O(n)$ | Exact | Deterministic | Time |
| PHITS Coheng Chan | 2000 | $O(m n )$ | $O(nz)$? | Exact | Deterministic | Time |
| Haveliwala | 2002 | $O(m n )$ | $O(nz)$? | Exact | Deterministic | Time |
| Jeh and Widom | 2003 | $O(m n )$ | $O(nh)$ | Exact | Deterministic | Time |
| Richardson and Domingos | 2002 | $O(m n )$ | $O(nl)$ | Exact | Deterministic | Time |
| Tomlin | 2003 | $O(m n )$ | $O(n)$? | Exact | Deterministic | Time |
| Achlioptas | 2001 | $O(mn )$ | $O((n+l)$^{2})? | Exact | Deterministic | Time |
Time Complexity Graph
