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Google Search Appliance: Search Protocol Reference Request Format 36
Sorting
Google search provides three sorting options for search results:
• “Sort By Relevance (Default)” on page 36
• “Sort By Date” on page 36
• “Sort by Metadata” on page 37
Sort By Relevance (Default)
By default, Google combines hypertext-matching analysis and PageRank technologies to provide users
with highly relevant results. Hypertext-matching analysis uses the design of the page, examining over
100 factors to determine the best result for your query term. PageRank considers the link structure of
the entire index to understand how each page links to the other pages in the index.
Sort By Date
Google search engine can order search results by date in ascending or descending order. The date of a
web document is defined by parameters configured by the search administrator. When a search request
uses the sort-by-date feature, the date associated with each result document is used to determine the
order of the results. Take note that the search appliance ignores the time of day for sorting, even if it’s
given by the “last-modified” date or other attributes.
When using the sort-by-date feature, the built-in filter of duplicate directories and duplicate snippets
will group the highest result (newest or oldest depending on the sort order) with similar results
regardless of their date. This can be disabled by adding the
filter=0
parameter to the search request
when performing search by date.
Note: When sorting by date, the order of the results can also be effected by any relevant result biasing
policies that are being used. See “Using Result Biasing to Influence Result Ranking” in Creating the Search
Experience.
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Unicode (All Languages) utf8 UTF-8
Language Encoding Value Alternate Encoding Value
- Google Search Appliance 1
- Contents 3
- Introduction Chapter 1 5
- Request Format Chapter 2 6
- Using the POST Command 7
- Submitting a Search Request 8
- Search Parameters 10
- Custom Parameters 21
- Query Terms 22
- Special Query Terms 23
- Back Links 24
- Boolean OR Search 24
- Cached Results Page 24
- Date Range Search 25
- Directory Restricted Search 25
- Exclusion 26
- File Extension Filtering 26
- File Extension Exclusion 26
- File Type Filtering 27
- File Type Exclusion 27
- Meta Tag Search 27
- Number Range Search 28
- Phrase Search 28
- Text Search (one term) 28
- Text Search (all terms) 28
- Title Search (one term) 28
- Title Search (all terms) 29
- URL Search (one term) 29
- URL Search (all terms) 29
- Web Document Info 29
- Filtering 30
- Language Filters 31
- Automatic Language Filters 32
- Internationalization 34
- Character Encoding Values 35
- Sort By Relevance (Default) 36
- Sort By Date 36
- Sort by Metadata 37
- How Sorting Works 38
- Examples 40
- Meta Tags 41
- Requesting Meta Tag Values 42
- Filtering by Meta Tags 43
- Non-Alphanumeric Characters 46
- Limitations 51
- Results Format Cha pter 3 52
- XML Output 53
- XML Output Overview 54
- Google XML Results DTD 54
- Google XML Tag Definitions 55
- Format/Parent 56
- Definition 56
- Attributes 56
- CACHE_CONTENT_TYPE 57
- CACHE_HTML 58
- CACHE_ENCODING 58
- CACHE_LANGUAGE 59
- CACHE_LAST_MODIFIED 59
- CACHE_LEGEND_FOUND 60
- CACHE_LEGEND_NOTFOUND 60
- CACHE_LEGEND_TEXT 61
- CACHE_REDIR_URL 61
- CACHE_URL 62
- CRAWLDATE 62
- ENT_SOURCE 64
- ENTOBRESULTS 64
- OneSynonym 72
- SCOREBIAS 80
- Spelling 81
- Suggestion 81
- Synonyms 82
- Chapter 4 86
- Response 88
- Protocol Chapter 5 93
- Stylesheet 96
- Legacy Format 97
- OpenSearch Format 98
- Rich Output Format 99
- Chapter 6 101
- Request Parameters 102
- Responses 104
- Appendices 105
- Number of Results to Return 106
- Navigation 106
- Automatic Filtering 106
- Appendix B: URL Encoding 107
- Appendix C: Date Formatting 108
- Acceptable Date Formats 109
- Date Formatting Notes 110
- Examples of Rules 111
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