1. Faceted Filter
Jidong Jiang

2. Scenario
Exploring an unknown collection of items to discover new or unfamiliar items of interest.
Browsing and navigating an entity collection or even a RDF dataset with a fuzzy need.

3. Chinese Civil War - is battle of - 69 entities

4. You may want to know Organizations in this entity collection.
The person who is born in Sichuan Province.
The person who is born in 1890s.
The person who joined Communist Party of China.
The person whose spouse is Soong May-ling.
Just have a look…

5. Challenge Users have vague knowledge about the domain.
Users only vaguely know the item of interest.
The manual method is not scalable.
Automatic and Dynamic facet ranking(or selection).

6. Facet ranking Frequency-based ranking. Set-cover ranking.
Relevance-based.
Interestingness.
Cost.
Facet grouping. …

7. Related work
Andreas Wagner et al.[DEXA 11, Browsing-Oriented Semantic Faceted Search].
Extended facet tree
(facets and facet values).
Small steps, uniform steps and comprehensible result segment.
Maximum height, Minimum branching factor.
Height balance, facet value sets and binding segment size balance.
Binding distinguishability, minimal binding segment overlap.

8. Eyal Oren et al.[ISWC 06, Extending Faceted Navigation for RDF Data].
Operation
Basic selection, existential selection, join selection, intersection and inverse selection.
Descriptors.
Facet metrics
Predicate balance, object cardinality and predicate frequency.
时间（出版日期，出生日期）空间（出生地点）材料（颜色）
每个facet的value背后能得到多少个entity，是否平衡
每一个facet有多少value
是否每一个entity都有这个facet

9. Chengkai Li et al.[www 10, Facetedpedia: Dynamic Generation of Query-Dependent Faceted Interfaces for Wikipedia].
Faceted wikipedia.
Facet ranking
Single-facet ranking
Multi-facet ranking
Average pair-wise similarity

10. Our work Facet (type + feature) Type as a special feature. Feature
Feature value cluster (or visualization methods).
Basic selection + existential selection.
Set-cover based ranking.

11. Thank you.