Keyphrases
Cluster-based
100%
Search Engine
100%
Crawler
100%
Web Crawling
100%
Web Search Engines
40%
Change Patterns
40%
Frequency Change
40%
World Wide Web
20%
Clustering Algorithm
20%
Behavior Change
20%
High Probability
20%
Keep up
20%
User Experience
20%
Query Result
20%
Freshness
20%
Resource Constraints
20%
Sampling Approach
20%
System Resources
20%
Web of Data
20%
Web Information Systems
20%
Computer Science
Search Engine
100%
Web Search Engine
40%
Change Pattern
40%
Clustering Algorithm
20%
User Experience
20%
Internet
20%
Web Information
20%
Resource Constraint
20%
Sampling Approach
20%
System Resource
20%
Information Systems
20%
Constraint Search
20%