SealincMedia Accurator Demos

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Accurator

ask the right crowd,
enrich your collection

Rijksmuseum Amsterdam holds an
enormous collection which comprises
over 1 million artworks

however, only a small fraction of about
8000 items are currently on display

to grant the public access to the objects
in archives and depots, the Rijksmuseum
started to digitize the artworks ...

… and present the collection online. 125.000
artworks are already available, and another
40.000 are added every year

the expertise of museum professionals lies in
describing & annotating collection with arthistorical information, thus for ...

“We’re adding 40.000 items to the collection
every year. After the scan, we have limited
time for each painting and this o...

detailed information about the depicted
objects, e.g. which species the animal or plant
belongs to, is in most cases not a...

the need for more detailed annotations:
this painting is annotated only with “bird with
blue head near branch with red lea...

by involving people from outside the
museum in annotation process, we support
museum professionals in their annotation tas...

we use crowdsourcing to get more
annotations. we use nichesourcing, i.e. niches
of people with the right expertise, to add...

first, we use the crowd from Crowdflower &
Amazon Mechanical Turk to make a general
classification of the artworks

the crowd tags artworks on a generic level, e.g.
‘bird’, ‘ﬂower’. Most people can provide
common knowledge tags, but it is...

to ﬁll this gap, we target experts

we use sources like Twitter to ﬁnd experts or
groups of experts on certain areas, e.g. bird
lovers, ornithologists or peop...

these experts can contribute their knowledge
about bird species using the Accurator
platform

We create user proﬁles for each expert to
better match the annotation tasks with the
right expert, e.g. if an expert knows...

… she will be asked to annotate more of the former

we have developed a platform where users can enter
tags, either by using terms from a structured
vocabulary or by adding f...

experts can enter any information about the
depicted object & they can also review the tags that
others have provided

for tasks that are too diﬃcult, we developed a game
in which players can carry out an expert annotation
task with some ass...

… and the possibility to gain points, compete with
others keeps the users engaged

to evaluate the correctness of annotations they are
reviewed & rated by other experts who have
expertise in the same topic

to evaluate the correctness of annotations they are
reviewed & rated by other experts who have
expertise in the same topic

for example, if expert A has annotated the bird with
Minivet and expert B, whose specialty is also
Japanese birds, is cert...

next to the peer reviews, we use trust algorithms to
determine the reputation of experts over time. This
reputation is als...

Trust-aware Ranking & Relevance
x

Legend
Accepted Tags
Rejected Tags
Cluster Medoid

Reviewers
Evaluate
Evaluated
Tags

P...

we use the computed correctness to select high
quality annotations

these annotations can serve two purposes:

1) reﬁne the description of collection items
2) Fuel semantic search techniques

with such clever steps, we involve the social crowd of
people in the annotation & curation of the museum’s
vast collection

THANK YOU!

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