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Published byMaria Todd Modified over 11 years ago
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Beth Golden Manager, Editorial Services Factiva Intelligent Indexing SLA 2004
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Agenda Factiva Intelligent Indexing Application of Factiva Intelligent Indexing Pros and Cons Quality Control
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Factiva Intelligent Indexing Factiva Taxonomy 320,000 companies 760+ industries 450+ news subjects 370+ regions 22 languages
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FII Structure One universal taxonomy Building blocks Inclusive hierarchy Polyarchy Synonyms and alias names Full descriptions Variable depth and breadth
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Polyarchy Internet/Online services E-commerce Internet browsers Internet portals Internet search engines Internet service providers etc. Computers Computer hardware Computer services Computer stores Networking Semiconductors Software Applications software GroupWare Intelligent agents Internet browsers etc.
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Factiva Intelligent Indexing Company Codes Industry Codes Subject Codes Region Codes Codes On documents Search
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FII Application Code mapping Entity extraction Rule-based system Linguistic analysis software Manual review
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Code Mapping Most information providers provide some form of metadata. This is matched to relevant Factiva indexing terms. Advantages: Easy and quick Efficient use of existing data Disadvantages: Mismatches between coding schemes Different interpretations of same concepts Variable quality – which sources do you trust?
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Entity extraction This tool finds company names which are then compared to our controlled vocabulary. Advantages: Consistent Precise Disadvantages: Ambiguous names High maintenance costs
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Symbology Snapshot
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Rule-based system Sets of IF-THEN statements established by editors, information architects, or subject-matter experts. Advantages: Good at highly formulaic content Precise Disadvantages: Need thousands of rules for a complete system Maintenance of the rules themselves becomes VERY expensive! Only captures explicit concepts
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Example
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Linguistics-based categorization This tool is currently employed across all English, French, German and Spanish language publications. A combination of linguistic analysis and statistical algorithms allows new content to be compared to example data and coded appropriately. Advantages: Scales to millions of documents, thousands of categories, multiple languages Copes well with change Fits editorial workflow Good fine-tuning tools – editorial control Codes implicit as well as explicit concepts Disadvantages: Training time and cost
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Editorial Control Set relevance levels Maintain training set Stop words - correlation and multiple meanings "Chechnya" to the industries model, as it was triggering the freelance journalist code (because so many of them were dying there)
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Manual coding About 200 editors spread across main time zones Advantages: Humans easily grasp the gist of the story Cope well with exceptions Visible/Controllable Disadvantages: Very resource-intensive = Expensive Slow Inconsistent (subjective and temporal) Not scalable
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Review process Lists reviewed every three months, redefinition, new codes, expansion changes Market research/customer feedback and behavior Changes to parent schemes/standards Editorial/Quality control feedback Internal coding forum 45-day notice period
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Quality control Sampling by editors Scoring for precision and recall Analysis by source, language, code, editor etc. Feedback to editors and systems Corrective action
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Results Three million articles coded a month All receive a level of autocoding Seventy-nine percent automation or more than two million are auto- coded with no further manual review
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Recap Factivas taxonomy is Factiva Intelligent Indexing Factiva uses a hybrid methodology for application Factiva has a coding team for governance and maintenance End result: Factiva Intelligent Indexing leverages our editorial strengths, combining human experience and expertise with the latest automation software to implement a completely flexible and granular indexing system across all of our content.
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