content discovery through entity driven search

ECIR 2014 Industry DayContent Discovery Through Entity Driven Search

Alessandro Benedettihttp://uk.linkedin.com/in/alexbenedetti

Antonio David Perez Morales http://es.linkedin.com/in/adperezmorales16th April 2014

• Experienced at building and delivering a wide range of enterprise solutions across the whole information life cycle

• Alfresco & Ephesoft certified Platinum Partner

• Red Hat Enterprise Linux Ready Partner

• Crafter & Varnish Gold Partners

• Search Solutions ConsultantAlfresco Partner of the Year 2012 and

2013

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Who We Are

3

Antonio David Pérez Morales

- R&D Senior Engineer- Master in Engineering and Technology Software- Digital Identity and Security expert- Enterprise Search Background- Semantic, NLP, ML Technologies and Information Retrieval lover- Apache Stanbol Committer- Apache contributor

@adperezmoraleshttp://es.linkedin.com/in/adperezmorales/

Alessandro Benedetti

- R&D Senior Engineer- Master in Computer Science- Information Retrieval background-- Enterprise Search specialist- Semantic, NLP, ML Technologies and Information Retrieval lover

@AlexBenedettihttp://uk.linkedin.com/in/alexbenedetti

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Agenda

4

• Context

• Problem

• Solution

• Demo

• Future Works

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Agenda

5

• Context

• Problem

• Solution

• Demo

• Future Works

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Zaizi R&D Department

6

•Giving sense to the content

• Enriching it semantically

•Adding value to ECM/CMS

• More structured content, easy to manage, link and search,

•Improving search

• Across different domains, data sources, User Experience

• Machine Learning applied research

• Content Organization – Recommendation Systems

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Agenda

7

• Context

• Problem

• Solution

• Demo

• Future Works

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Enterprise Search Problems

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Challenge : Search within Big and Heterogeneus Repositories

• Heterogeneus Data Sources

• Filesystem, DB, ECM/CMS, Email, …

• Unstructured Content

• PDFs, text plain, Word, …

• Documents not linked between each other

• Federated Search needed

• Search across data sources

• Different permissions

• Centralized endpoint

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Current Enterprise Search Weaknesses

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• Keyword based

• Low precision

• Ambiguous terms not in context

• Not accurate weighting when keywords are combined in a query

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Agenda

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• Context

• Problem

• Solution

• Demo

• Future Works

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Entity Driven Search

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• Moves from keywords to Entities

•More understandable to a Human

• Process the unstructured text

• Enrich it

• Build specific indexes

• Use entities and concepts in searches

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Sensefy

12

• Semantic Enterprise Search Engine

• Federated Search

• Evolved User Experience

• Based on cutting-edge Open Source Frameworks

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Architecture

13

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RedLink

14

• Semantic Cloud platform

• Providing Software as a Service

• Manage unstructured data

• Extract knowledge and intelligence

• Make sense of information

• Feed into business processes

• Open-Source based components

• Entity Linking using Knowledge Bases

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NLP & Semantic Enrichment

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• From unstructured to structured

• NLP Analysis. POS Tagging

• Named Entities Recognition

• Linked Data

• Entity Linking using Knowledge Bases

• Disambiguation

• Indexing in Solr

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Smart Autocomplete

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• Multi Phase suggestions

• Closer to natural language query formulation

• Named Entities infix

• Entity types infix

• Multi Language entity type support

• Properties driven query approach

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Smart Autocomplete Configuration

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• Entity type properties

• Interesting to our use case and scenario

• Properties inheritance through type hierarchy

• Enhance type information from external resource

•Freebase, DbPedia , Custom Data Set

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Semantic Search

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• Search by Named Entity

• Search by Entity Type

• Search by Entity Type properties

• Grouping Results by Sense

• Contextualize Results Using Semantic Information

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Semantic More Like This

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• Search for Similar Documents based on Entities and Entities’ categories

• Similarity Function based on Documents’ Sense

• Not based on text tokens

• Entity Frequency / Inverted Document Frequency

• Entity Type Frequency / Inverted Document Frequency

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Agenda

20

• Context

• Problem

• Solution

• Demo

• Future Works

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Agenda

21

• Context

• Problem

• Solution

• Demo

• Future Works

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Future Work

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• Semantic More Like This new approach (Graph relations)

• Machine Learning components: Classification, Topic annotation, Clustering

• Semantic facets

• Secured Entity Search

• Image and Media searches

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Conclusions

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• Better user experience

• More precision in search results

• Closer to human language

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