Ugo Scaiella - Developer Team Lead - SpazioDati - Intervento a Smarter Engagement 2016: http://2016.smarterengagement.com/speaker/ugo-scaiella/

1. Ugo Scaiella
R&D Team Lead @
Smarter Engagement – Milano, 20.05.2016
Dandelion
semantic text analytics
as a service

2. The bag-of-words paradigm
The Mona Lisa is a 16th
century oil on canvas painted
by Leonardo.
It's held at the Louvre in Paris.

3. The bag-of-words paradigm
Term Freq
the 2
mona 1
leonardo 1
century 1
oil 1
Paris 1
Lisa 1
By 1
painted 1
at 1
canvas 1
... ...

4. Classic NLP pipeline
Segmentation Tokenization
PoS
Tagging
Chunking
Dependency
Parsing

5. Classic NLP pipeline
1 The the DT O 3 det
2 Mona Mona NNP O 3 compound
3 Lisa Lisa NNP O 8 nsubj
4 is be VBZ O 8 cop
5 a a DT O 8 det
6 16th 16th JJ DATE 8 amod
7 century century NN DATE 8 compound
8 oil oil NN O 0 ROOT
9 on on IN O 10 case
10 canvas canvas NN O 8 nmod
11 painted paint VBN O 10 acl
12 by by IN O 13 case
13 Leonardo Leonardo NNP PERSON 11 nmod
14 .. . O _ _
1 It it PRP O 3 nsubjpass
2 's be VBZ O 3 auxpass
3 held hold VBN O 0 ROOT
...

6. Limitations
The book is
on the table
“
”

7. Limitations
Training: expensive, hard

10. The graph of concepts
The Mona Lisa is a 16th century oil on canvas
painted by Leonardo. It's held at the Louvre in
Paris.

11. The graph of concepts
The Mona Lisa is a 16th century oil on canvas
painted by Leonardo. It's held at the Louvre in
Paris.

12. The graph of concepts
PERSON
birthDate
birthPlace
deathDate
authorOf
...
CONCEPT
...
WORK
...
PLACE
coords
capitalOf
population
...
BUILDING
coords
...

13. paris
leonardo
oil on canvas
mona lisa
Oil painting
Paris
(mythology)
Mona Lisa
(painting)
Mona Lisa
(movie)
Paris (city)
Leonardo
da Vinci
Leonardo
do Nascimento
Spots
(aka mentions, surface
forms)
Concepts

14. Advantages
• Less training
• Speed
• Customization
• Robustness to syntax
• … but still (may) use classic NLP to
improve results

15. Applications
• Entity Extraction
• Classification
• Similarity & clustering
… basically any IR task

16. Applications: an example
Cameron wins the Oscar
Cameron wins general elections
All nominees for the Academy Awards
See more on
https://dandelion.eu

17. Real World Use Cases

18. Use case #1
Lawful interception
Identify potential terrorism threats on
social networks and message boards
Customized domain-specific taxonomy

19. Use case #2
Website tagging
Profile a company looking at his website
• Entity extraction: products, locations
• People & Roles
Sales intelligence
for lead generation
http://atoka.io

21. Use case #3
News stream monitoring
News stream of 70k articles per day
• BI vertical of semantic engine
• Entity extraction: companies, people
• Business signals extraction

23. Use case #4
Social media analysis
• Entity extraction, sentiment analysis
• Dashboard, tag-cloud

24. Use case #5
Travel recommendation
Crawl the web and understand people’s behavior
Display travel offers that match user preferences

25. Use case #6
E-Commerce Optimization
Collect and annotate customer reviews from e-
commerce websites
Dashboard for product ratings analysis

26. Thanks!
scaiella@spaziodati.eu
@ugoscaiella
linkedin.com/in/ugoscaiella
dandelion.eu
Q&A