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Multidimensional order preserving linear hashing with partial expansions [chapter]

Hans-Peter Kriegel, Bernhard Seeger
1986 Lecture Notes in Computer Science  
Our scheme is a multidimensional order preserving extension of (one-dimensional) linear hashing with partial expansions and thus overcomes these disadvantages.  ...  For uniform distribution our scheme performs better than its competitors which is underligned by experimental runs with an implementation of our scheme.  ...  This paper is organized as follows. In section 2 we give a brief description of linear hashing with partial expansions and suggest an order preserving variant.  ... 
doi:10.1007/3-540-17187-8_38 fatcat:6bnr652lpvbthamx6hnirz6rgm

Bounded disorder: The effect of the index

Ricardo A. Baeza-Yates
1996 Theoretical Computer Science  
model. lso, $ we extend the analysis to the case of BD files with two partial expansions as proposed, y Lomet.  ...  In this paper we complete the analysis done by Ramakrishna and Mukhopadhyay for a data node in the bounded disorder (BD) file organization of Litwin and I.omet. by introducing the B-tree index into the  ...  Thus, we are able to compare a BD file with other file organizations.  ... 
doi:10.1016/s0304-3975(96)00061-8 fatcat:zgtczsooznc4dfjofkdbfq2ktm

Performance of linear hashing schemes for primary key retrieval

Y. Manolopoulos, N. Lorentzos
1994 Information Systems  
Linear hashing with partial expansions and linear hashing with priority splitting are two variations with improved space and time performance.  ...  Here, we propose a new structure, which is termed linear hashing with partial expansions and priority splitting.  ...  Papadimos for their valuable help during the experimentation. We are also grateful to the referees, whose comments greatly improved the presentation of this paper.  ... 
doi:10.1016/0306-4379(94)90005-1 fatcat:hd5jxhikebfp3pnp2z5tn3bhla

Dynamic Hashing Schemes

K. Ramamohanarao, J. W. Lloyd
1982 Computer journal  
In this paper, we study two new dynamic hashing schemes for primary key retrieval. The schemes are related to those of Scholl, Litwin and Larson.  ...  Alternatively, an initial loading of the file can be achieved by starting off with g1 d empty home pages, for a suitable d. sp is set to 0.  ...  Referring to Fig. 2(a) , an extra page indexed by g2 d is appended to the right hand end of the file.  ... 
doi:10.1093/comjnl/25.4.478 fatcat:hunkxefipbhbfmpbugbrm5xkgm

Page 36 of The Information Management Journal Vol. 19, Issue 4 [page]

1985 The Information Management Journal  
Even today, 85% of the infor- mation in an organization is likely to still be in a paper and file format.  ...  Computer- assisted retrieval (CAR) gives users rapid access to automated record indices, improves the accuracy and speed of record retrieval, helps increase file integrity, and can provide for expansion  ... 

Query expansion using MeSH terms for dataset retrieval: OHSU at the bioCADDIE 2016 dataset retrieval challenge

Theodore B Wright, David Ball, William Hersh
2017 Database: The Journal of Biological Databases and Curation  
The Biomedical and Healthcare Data Discovery Index Ecosystem (bioCADDIE) is an NIH-funded Data Discovery Index that aims to provide a platform for researchers to locate, retrieve, and share research datasets  ...  Scores varied considerably between queries as well as with different variations of MeSH terms and weights. Query expansion using MeSH terms can enhance search relevance of biomedical datasets.  ...  Funding Funding for this publication was provided by the OHSU Department of Medical Informatics and Clinical Epidemiology. bioCADDIE Dataset Retrieval Challenge was supported by the NIH Grant U24AI117966  ... 
doi:10.1093/database/bax065 pmid:29220467 pmcid:PMC5737054 fatcat:jarjmd4uo5eatgt5xkdjjvil24

Page 8 of The Information Management Journal Vol. 7, Issue 3 [page]

1973 The Information Management Journal  
general memory but as a supplement which will permit the in- dividual to set up a personalized flex- ible and expansible method of organ-: izing data.  ...  Thus, with- in the business section of the Index, there may be categories for marketing, accounting, statistics, production con- trol, and inventory management.  ... 

Co-ordinate indexing of pharmaceutical information. Progress and growth of a small manual system

1962 Bulletin of the Medical Library Association  
Our system provides for an index density of ten; that is, a total of ten uniterms is considered sufficient to identify and describe any one document.  ...  These cards also indicate the language of the document, availability of abstracts, complete or partial translation, early manuscripts, and the like, with bibliographic identification for published material  ... 
pmid:13879692 pmcid:PMC197857 fatcat:rbv2czh6bbgdldtaodggtqkzdq

Page 190 of American Documentation Vol. 8, Issue 3 [page]

1957 American Documentation  
with the partial realization of such a plan: 1, The Ministry or Unification had been, since its re-establisi nent, more of a political sinecure than an organ of Government.  ...  190 AMERICAN DOCUMENTATION who privately cooperated with Svatuska, used Svatuska’s Card Index for controlling their own office work.  ... 

Subject index

1968 Information and Control  
Erratum 276 F File Organization File Organization Schemes Based on Finite Geometries, C.  ...  ROSE 549 Stochastic Languages, On, PAAVO TURAKAINEN 304 Languages, Grammars Grammars with Partial Ordering of the Rules, IVAN FRI~ 415 M Machines Decomposition Decomposition of a Synchronous  ... 
doi:10.1016/s0019-9958(68)90705-5 fatcat:ck6sp2lzqzet5oiwbuglqvwgve

G-Bean: an ontology-graph based web tool for biomedical literature retrieval [article]

James Z. Wang, Yuanyuan Zhang, Liang Dong, Lin Li, Pradip K Srimani, Philip S. Yu
2015 arXiv   pre-print
three innovations: parallel document index creation,ontology-graph based query expansion, and retrieval and re-ranking of documents based on user's search intention.Performance evaluation with 106 OHSUMED  ...  G-Bean is available at addresses PubMed's limitations with ontology-graph based query expansion, automatic document indexing, and user search intention  ...  With this approach, the total time for creating the MEDLINE index is:     8 1 i merge i p T T T (1) where i T is the time to create the partial index for files in group i , merge T is the time to merge  ... 
arXiv:1401.1766v5 fatcat:qwpwxvkidfapvpzh76a3pept4u

Optimizing distributed data bases

K. Dan Levin, Howard Lee Morgan
1975 Proceedings of the May 19-22, 1975, national computer conference and exposition on - AFIPS '75  
The file assignment models of this research are then invoked to provide him with the revenue figure for the forecasted demand.  ...  A potential user will probably be faced with a set of network specifications, such as prices for storage and communication and expected delays on the communication links.  ...  Let (Ti/ = Storage cost of file f at node j (Tip = Storage cost of program p at node j a = Expansion fa-ctor for query message (3 = Expansion factor for update message The provision of the expansion factors  ... 
doi:10.1145/1499949.1500042 dblp:conf/afips/LevinM75 fatcat:bf3hcarwnnecvco2c57hpzi5zu

File organizations with shared overflow blocks for variable length objects

Yannis Manolopoulos, Stavros Christodoulakis
1992 Information Systems  
Traditional file organizations for records may also be appropriate for the storage and retrieval of objects.  ...  For this class of tile organizations we present and analyze the performance of three different overtlow searching algorithms.  ...  with inte~olation-based index maintenance, etc.) as well as the traditional indexed sequential files [2, 3] .  ... 
doi:10.1016/0306-4379(92)90028-l fatcat:fdyoas5jkbgu5ctwhkzzz5h24q

: Visual Files Coding Index . Robert Bruce Inverarity

Ronald W. Force
1962 American Anthropologist  
As the publication’s title in- dicates, it is an index (‘‘or more truly a language’’) for the description of visual ma- terials.  ...  The collection is an outgrowth of papers originally presented at a “Seminar on the Teaching of Anthro- pology”’ organized by its editor for the 1957 annual meeting of the Central States Anthropological  ... 
doi:10.1525/aa.1962.64.1.02a00480 fatcat:hcitqkcd7fglhoseb5higpxriu

Geospatial Information Retrieval Base on Query Expansion and Semantic Indexing

Omer Sevinc, Lucy Huang, Mehrube Mehrubeoglu, Li Loughzang, Erdal Kilic
2015 The Journal of Engineering and Fundamentals  
The hybrid method uses the advantages of Query Expansion and Semantic indexing methods for improving search results.  ...  In this paper, a hybrid approach is developed for geospatial information retrieval which combines query expansion (QE) and latent semantic indexing (LSI) methods.  ...  Acknowledgment This research is funded with the YOK (The Higher Education Council of Turkey), Computer Science Program of TAMUCC (Corpus Christi Texas A&M University), and Ondokuz Mayıs University Samsun  ... 
doi:10.17530/jef. fatcat:cbwfcfjirrgh3cjqynq5y3gyam
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