Query Suggestion & Data Fusion in Contextual Disambiguation

Milad Shokouhi, Marc Sloan, Paul Bennett, Kevin Collins-Thompson and Siranush Sarkizova

Eagles?

Eagles | Session

nfl flag

nfl flag

eagles

Eagles?

Document Topic Classification

Modelling Session Context

𝑞0

Modelling Session Context

𝑞0

𝜃 = Science/Biology (0.5)

Modelling Session Context

𝑞0

𝜃 = Science/Biology (0.5)

Modelling Session Context

𝑞0

𝜃 = Science/Biology (0.5) 𝑜∗

Contextual Query Suggestion

Maximum Likelihood

Problems with Maximum Likelihood (#1)

Problems with Maximum Likelihood (#2)

Cumulative Reciprocal Rank (CRR)

eagles(Query)

eagles band(Candidate)

Cumulative Reciprocal Rank (CRR)

Cumulative Reciprocal Rank (CRR)

Cumulative Reciprocal Rank (CRR)

Cumulative Reciprocal Rank (CRR)

Context Sensitive Query Suggestion (CosQus)

Results

Results

Contextual Blending

Data Fusion

Problems with Naïve Data Fusion (#1)

Problems with Naïve Data Fusion (#2)

Contextual Result Fusion (Corfu)

Features & Settings

Features & Settings

Results

+23.87% @ 5.68% recall

+30.72% @ 9.52% recall

Results

+23.87% @ 5.68% recall

+30.72% @ 9.52% recall

Feature Importance

Summary

Other Eagles, Other Contexts