Suffix arrays: a new method for on-line string searches
SIAM Journal on Computing
Efficient algorithms for document retrieval problems
SODA '02 Proceedings of the thirteenth annual ACM-SIAM symposium on Discrete algorithms
High-order entropy-compressed text indexes
SODA '03 Proceedings of the fourteenth annual ACM-SIAM symposium on Discrete algorithms
LATIN '00 Proceedings of the 4th Latin American Symposium on Theoretical Informatics
Rank/select operations on large alphabets: a tool for text indexing
SODA '06 Proceedings of the seventeenth annual ACM-SIAM symposium on Discrete algorithm
Succinct data structures for flexible text retrieval systems
Journal of Discrete Algorithms
Compressed representations of sequences and full-text indexes
ACM Transactions on Algorithms (TALG)
Space-efficient static trees and graphs
SFCS '89 Proceedings of the 30th Annual Symposium on Foundations of Computer Science
Space-Efficient Algorithms for Document Retrieval
CPM '07 Proceedings of the 18th annual symposium on Combinatorial Pattern Matching
Linear pattern matching algorithms
SWAT '73 Proceedings of the 14th Annual Symposium on Switching and Automata Theory (swat 1973)
Range Quantile Queries: Another Virtue of Wavelet Trees
SPIRE '09 Proceedings of the 16th International Symposium on String Processing and Information Retrieval
Efficient Index for Retrieving Top-k Most Frequent Documents
SPIRE '09 Proceedings of the 16th International Symposium on String Processing and Information Retrieval
Space-Efficient Framework for Top-k String Retrieval Problems
FOCS '09 Proceedings of the 2009 50th Annual IEEE Symposium on Foundations of Computer Science
Modern Information Retrieval
Top-k ranked document search in general text databases
ESA'10 Proceedings of the 18th annual European conference on Algorithms: Part II
Colored range queries and document retrieval
SPIRE'10 Proceedings of the 17th international conference on String processing and information retrieval
Practical compressed document retrieval
SEA'11 Proceedings of the 10th international conference on Experimental algorithms
Inverted indexes for phrases and strings
Proceedings of the 34th international ACM SIGIR conference on Research and development in Information Retrieval
Improved compressed indexes for full-text document retrieval
SPIRE'11 Proceedings of the 18th international conference on String processing and information retrieval
Top-k document retrieval in optimal time and linear space
Proceedings of the twenty-third annual ACM-SIAM symposium on Discrete Algorithms
Efficient in-memory top-k document retrieval
SIGIR '12 Proceedings of the 35th international ACM SIGIR conference on Research and development in information retrieval
Spaces, Trees, and Colors: The algorithmic landscape of document retrieval on sequences
ACM Computing Surveys (CSUR)
Indexing Word Sequences for Ranked Retrieval
ACM Transactions on Information Systems (TOIS)
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Supporting top-k document retrieval queries on general text databases, that is, finding the k documents where a given pattern occurs most frequently, has become a topic of interest with practical applications. While the problem has been solved in optimal time and linear space, the actual space usage is a serious concern. In this paper we study various reduced-space structures that support top-k retrieval and propose new alternatives. Our experimental results show that our novel structures and algorithms dominate almost all the space/time tradeoff.