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Search Engine Changes in SharePoint 2013

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Editor's note: Contributor Veena Sarda is a SharePoint Consultant at Tata Consultancy Services. Follow her @writerpurple

In this article, I have tried to capture the major changes between the SharePoint 2013 and SharePoint 2010 search engine.

 

 

SharePoint 2013

 

SharePoint 2010

Code Base

 

The Search engine is a combination of SharePoint and FAST search engines (single code base) hence advanced capabilities that were earlier available for FAST Search deployments will now be available to SharePoint deployments.

 

There are two product lines – SharePoint Search and FAST Search (code bases are different).  Examples of capabilities specific to FAST Search for SharePoint are:

  • Content-processing pipeline
  • Metadata extraction
  • Structured data search
  • Deep refinement
  • Visual search
  • Advanced linguistics
  • Visual best bets
  • Extreme scale and performance

Logical Architecture

 

Addition of Content Processing, and Analytics Components. The components are

  • Crawler
  • Content Processor
  • Analytics Processor
  • Indexer
  • Query Processor

Search Administrator component runs number of system processes required for search, is responsible for search provisioning and topology changes and coordinates search components – Content Processing, Query Processing, Analytics, and Indexing.

 

Crawler component was responsible for content/document processing. The components are

  • Crawler
  • Indexer
  • Query Processor/Server

Administration is done through Central Administration site

Crawling

 

Anonymous crawling of http sites is possible.
Continuous crawl for SharePoint content sources is available. Because of changes in how the index is created and stored, a document can appear in the index within seconds of going through the content processing component

 

Waiting period is long for index to merge and show results

Result Sources

 

Specify a location to get search results from and specify a protocol for getting those results

 

Functionality available by Federated Search and Scopes

Analysis Engine

 

Run time analysis engine for a variety of jobs including ranking algorithms and recommendations.
Search Analytics

  • Link and Anchor text analysis
  • Click Distance
  • Search Clicks
  • Deep Links
  • Social Tags
  • Social Distance
  • Search Reports

Usage Analytics

  • Recommendations
  • Usage Counts
  • Activity Ranking

 

Web Analytics in Central Administration provides usability reports and administration reports that mentions latency, crawl throughout and so on

End-User Experience

 

Direct access to the most granular information inside of sites and documents, and then enables users to act on the results without having to leave the results page.
Every search box in every team site offers full access to enterprise-wide search, people search, and other specialized search experiences in addition to the traditional scoped site search

 

A user enters a set of search terms on a search center homepage that are treated as keywords, and the results are a single ranked list of links with three-line summaries and a little metadata.

Hover Panel

 

New in SharePoint 2013.
Shows visual previews of sites, documents, and conversations. New set of actions that users can perform right on the search result. For example, following a document, leaping right into Edit mode, or sharing or opening the library the document is stored in to see what other content is available

 

Not Applicable

UI Framework

 

The UI framework that supports all these new features is re-designed. It is based on a set of nested layout templates that are defined in JavaScript and HTML for much easier extensibility

 

SharePoint Server 2010 includes many search-related web parts for power users to create customized search experiences, including Best Bets, refinement panel extensions, featured content, and predefined queries

Expertise Search

 

Document Authors are identified as experts based on the content mentioned in the document (Word, PowerPoint, PDF)

 

My Site profiles identifies expert in an area

People Search

 

People Search is integrated with core results. People search can be targeted by name, location, phone number and other properties

 

People Search is independent of document search

Managed Properties

 

Organization specific dictionaries with custom entities can be mapped to managed properties

 

 

Results Rendering Approach

 

Asynchronous client-side approach

 

Server based rendering approach

 

Query Rules

 

Query Rules are a new feature in SharePoint 13 that help act upon the “intent” of a query -
Query Rules are composed of three top level elements:
Query Conditions (i.e. matching rules), Query Actions (i.e. what do you do when you find a match),
Publishing Options (i.e. when should this rule be active).
Query Rules allows to have search requests from a user trigger multiple queries and multiple result sets

 

Simple queries – one query has one set of results. 

Document Parsing

 

New parsing features

  • Automatic file format detection
  • Deep link extraction for Word and PowerPoint formats
  • Visual metadata extraction: titles, authors and dates
  • High-performance format handlers for HTML, DOCX, PPTX, TXT, Image, XML and PDF formats
  • New Montage, Visio and OneNote filters
  • The IFilter API continues to be supported as a means of extending the supported set of file formats

 

Document detection relies on file extensions

References

http://technet.microsoft.com/en-us/library/ee667266.aspx

Categories: SPF 2013; Search and Indexing; 2010; SharePoint

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