query KDD07

Slide1: 

Daniel Crabtree, Peter Andreae, Xiaoying Gao Victoria University of Wellington New Zealand

Search Engines and Queries: 

Search Engines and Queries Instances where Black Bears have attacked people? 2 Black Bears It lives throughout much of the continent, from northern Canada and Alaska south into Mexico, from the Atlantic to the Pacific. This includes 41 of the 50 U.S. states and all Canadian provinces except Prince Edward Island. Populations in the east-central and southern United States remain in the protected mountains and woodlands of parks and preserves, though bears will occasionally wander outside the parks' boundaries and have set up new territories, in some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates, more than 800,000 are living today on the some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Habitat some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Diet some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Behavior some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Black Bears It lives throughout much of the continent, from northern Canada and Alaska south into Mexico, from the Atlantic to the Pacific. This includes 41 of the 50 U.S. states and all Canadian provinces except Prince Edward Island. Populations in the east-central and southern United States remain in the protected mountains and woodlands of parks and preserves, though bears will occasionally wander outside the parks' boundaries and have set up new territories, in some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates, more than 800,000 are living today on the some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Habitat some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Diet some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Behavior some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Black Bears It lives throughout much of the continent, from northern Canada and Alaska south into Mexico, from the Atlantic to the Pacific. This includes 41 of the 50 U.S. states and all Canadian provinces except Prince Edward Island. Populations in the east-central and southern United States remain in the protected mountains and woodlands of parks and preserves, though bears will occasionally wander outside the parks' boundaries and have set up new territories, in some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates, more than 800,000 are living today on the some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Habitat some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Diet some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Behavior some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Black Bears It lives throughout much of the continent, from northern Canada and Alaska south into Mexico, from the Atlantic to the Pacific. This includes 41 of the 50 U.S. states and all Canadian provinces except Prince Edward Island. Populations in the east-central and southern United States remain in the protected mountains and woodlands of parks and preserves, though bears will occasionally wander outside the parks' boundaries and have set up new territories, in some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates, more than 800,000 are living today on the some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Habitat some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Diet some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Behavior some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Black Bears It lives throughout much of the continent, from northern Canada and Alaska south into Mexico, from the Atlantic to the Pacific. This includes 41 of the 50 U.S. states and all Canadian provinces except Prince Edward Island. Populations in the east-central and southern United States remain in the protected mountains and woodlands of parks and preserves, though bears will occasionally wander outside the parks' boundaries and have set up new territories, in some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates, more than 800,000 are living today on the some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Habitat some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Diet some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates Behavior some cases on the margins of urban environments in recent years as their populations increase. Although there were probably once as many as two million black bears in North America long before European colonization, the population declined to a low of 200,000 as a result of habitat destruction and unrestricted hunting. By current estimates

Automatic Query Expansion: 

Automatic Query Expansion Automatic Query Expansion animal fatal mammal diet maul danger 3

Web Search = Precision: 

Web Search = Precision 4

Query Aspects: 

Query Aspects 5

AbraQ Method: 

AbraQ Method 6

Find Query Aspects: 

Find Query Aspects 7

Example: Find Query Aspects: 

Example: Find Query Aspects 8 Black Black Bear “Black Bear” “Bear Black” Black Bear Attacks “Black Bear Attacks” “Attacks Black Bear” “Attacks Bear Black” “Black Attacks Bear” “Bear Attacks Black” “Bear Black Attacks” Black Bear Attacks People “Attacks People” “People Attacks” Attacks People People

Find Query Aspects: 

Queries: Air New Zealand Flights Canada Air New Zealand Canada Flights Flights Air New Zealand Canada Flights Canada Air New Zealand Canada Flights Air New Zealand Canada Air New Zealand Flights Queries: Air New Zealand Flights Canada Air New Zealand Canada Flights Flights Air New Zealand Canada Flights Canada Air New Zealand Canada Flights Air New Zealand Canada Air New Zealand Flights Find Query Aspects 9

Ambiguous Query Aspects: 

Ambiguous Query Aspects 10

Identify Underrepresented Aspects: 

Identify Underrepresented Aspects 11 Car Automobile Petrol Motor Safety Transport Black Bear Animal Mammal Diet Habitat Cub

Identify Underrepresented Aspects: 

Identify Underrepresented Aspects 12 Black Bear Vocabulary Animal Mammal Diet Habitat Cub

Find Refinement: 

Find Refinement 13

Hard vs. Easy Queries: 

Hard vs. Easy Queries 14

Search Difficulty: 

Search Difficulty 15

Results: Efficiency: 

Results: Efficiency 16

Data Set and Measurements : 

Data Set and Measurements 17

Identification of Hard Queries: 

Easy Queries Hard Queries Identification of Hard Queries 18

Automatic Query Expansion: 

Automatic Query Expansion 19

Interactive Query Expansion: 

Interactive Query Expansion 20

Conclusion: 

Conclusion 21

Hard vs. Easy Queries: 

Hard vs. Easy Queries 22

User Input: Easy Queries: 

User Input: Easy Queries 23

Automatic Query Expansion: 

Automatic Query Expansion 24