Implementations of partial document ranking using inverted files
Information Processing and Management: an International Journal
Query evaluation: strategies and optimizations
Information Processing and Management: an International Journal
Filtered document retrieval with frequency-sorted indexes
Journal of the American Society for Information Science
Optimization of inverted vector searches
SIGIR '85 Proceedings of the 8th annual international ACM SIGIR conference on Research and development in information retrieval
Compressed inverted files with reduced decoding overheads
Proceedings of the 21st annual international ACM SIGIR conference on Research and development in information retrieval
Combining fuzzy information from multiple systems
Journal of Computer and System Sciences
Vector-space ranking with effective early termination
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
Static index pruning for information retrieval systems
Proceedings of the 24th annual international ACM SIGIR conference on Research and development in information retrieval
Combining fuzzy information: an overview
ACM SIGMOD Record
Optimizing Multi-Feature Queries for Image Databases
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Query Processing Issues in Image(Multimedia) Databases
ICDE '99 Proceedings of the 15th International Conference on Data Engineering
Optimal aggregation algorithms for middleware
Journal of Computer and System Sciences - Special issu on PODS 2001
On the integration of structure indexes and inverted lists
SIGMOD '04 Proceedings of the 2004 ACM SIGMOD international conference on Management of data
Fast phrase querying with combined indexes
ACM Transactions on Information Systems (TOIS)
Three-level caching for efficient query processing in large Web search engines
WWW '05 Proceedings of the 14th international conference on World Wide Web
Efficient Query Evaluation on Large Textual Collections in a Peer-to-Peer Environment
P2P '05 Proceedings of the Fifth IEEE International Conference on Peer-to-Peer Computing
Pruned query evaluation using pre-computed impacts
SIGIR '06 Proceedings of the 29th annual international ACM SIGIR conference on Research and development in information retrieval
Answering top-k queries using views
VLDB '06 Proceedings of the 32nd international conference on Very large data bases
Pruning policies for two-tiered inverted index with correctness guarantee
SIGIR '07 Proceedings of the 30th annual international ACM SIGIR conference on Research and development in information retrieval
Optimized query execution in large search engines with global page ordering
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Introduction to Information Retrieval
Introduction to Information Retrieval
Efficient text proximity search
SPIRE'07 Proceedings of the 14th international conference on String processing and information retrieval
Revisiting globally sorted indexes for efficient document retrieval
Proceedings of the third ACM international conference on Web search and data mining
Early exit optimizations for additive machine learned ranking systems
Proceedings of the third ACM international conference on Web search and data mining
Consistent query answers in inconsistent probabilistic databases
Proceedings of the 2010 ACM SIGMOD International Conference on Management of data
Query forwarding in geographically distributed search engines
Proceedings of the 33rd international ACM SIGIR conference on Research and development in information retrieval
Efficient term proximity search with term-pair indexes
CIKM '10 Proceedings of the 19th ACM international conference on Information and knowledge management
Batch query processing for web search engines
Proceedings of the fourth ACM international conference on Web search and data mining
Efficiently encoding term co-occurrences in inverted indexes
Proceedings of the 20th ACM international conference on Information and knowledge management
High-performance processing of text queries with tunable pruned term and term pair indexes
ACM Transactions on Information Systems (TOIS)
Efficient monitoring of personalized hot news over Web 2.0 streams
Computer Science - Research and Development
Efficient top-k document retrieval using a term-document binary matrix
AIRS'11 Proceedings of the 7th Asia conference on Information Retrieval Technology
Optimizing index for taxonomy keyword search
SIGMOD '12 Proceedings of the 2012 ACM SIGMOD International Conference on Management of Data
Context-aware top-K processing using views
Proceedings of the 22nd ACM international conference on Conference on information & knowledge management
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There has been considerable past work on efficiently computing top k objects by aggregating information from multiple ranked lists of these objects. An important instance of this problem is query processing in search engines: One has to combine information from several different posting lists (rankings) of web pages (objects) to obtain the top k web pages to answer user queries. Two particularly well-studied approaches to achieve efficiency in top-k aggregation include early-termination algorithms (e.g., TA and NRA) and preaggregation of some of the input lists. However, there has been little work on a rigorous treatment of combining these approaches. We generalize the TA and NRA algorithms to the case when preaggregated intersection lists are available in addition to the original lists. We show that our versions of TA and NRA continue to remain "instance optimal," a very strong optimality notion that is a highlight of the original TA and NRA algorithms. Using an index of millions of web pages and real-world search engine queries, we empirically characterize the performance gains offered by our new algorithms. We show that the practical benefits of intersection lists can be fully realized only with an early-termination algorithm.