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Creating a Database for Test Items in National Examinations

JO Borokinni
2009 African Research Review  
The fundamental focus in this piece, is on how to use Database Management System (DBMS) to store questions produced during 'Items Generation' for easy selection of questions, good discrimination index,  ...  high security provision, good item-difficulty stratification, easy item analysis, a good retrieval system, specification for hardware requirement and software acquisition options.  ...  This paper has been put together to give a direction on how to develop a database of test items, expatiate common database concepts, states the Indexed African Journals Online: www.ajol.info qualities  ... 
doi:10.4314/afrrev.v3i1.43563 fatcat:rt5v44432neybj5ykzggq7o6y4

Statistical Databases [chapter]

Claus Boyens, Oliver Günther, Hans-J. Lenz
2011 Handbook of Computational Statistics  
But at the same time, each of these methods reduces, in some way, the utility of the data for the legitimate data user.  ...  There are numberless measures for disclosure risk, see Domingo-Ferrer et al. (2002) for an excellent overview. We already gave an intuitive measure for interval inference.  ...  Bitmap Index Structures An important alternative to tree index structures is bitmap indexing.  ... 
doi:10.1007/978-3-642-21551-3_10 fatcat:2g6zipba3rfbpptyjzfpnaoequ

TiProD: the Tissue-specific Promoter Database

X. Chen
2006 Nucleic Acids Research  
TiProD is a database of human promoter sequences for which some functional features are known.  ...  We have defined a measure for tissue-specificity that allows the user to discriminate between ubiquitously and specifically expressed genes.  ...  To enable the selection of tissue-specific promoters from the database we have computed an index of tissue-specificity for each gene in each tissue library.  ... 
doi:10.1093/nar/gkj113 pmid:16381824 pmcid:PMC1347475 fatcat:2laik6ff6fd4nicvwcbhmopenq

Searching biomedical databases on complementary medicine: the use of controlled vocabulary among authors, indexers and investigators

Linda S Murphy, Sibylle Reinsch, Wadie I Najm, Vivian M Dickerson, Michael A Seffinger, Alan Adams, Shiraz I Mishra
2003 BMC Complementary and Alternative Medicine  
We hypothesized that authors, investigators and indexers in four biomedical databases are not consistent in their use of terminology in Complementary and Alternative Medicine (CAM).  ...  Conclusions: Searching biomedical databases for CAM is challenging due to inconsistent use of controlled vocabulary and indexing procedures in different databases.  ...  Acknowledgements This project was supported in part by the University of California Irvine (UCI) College of Medicine 41 st Trust; The Susan Samueli Center for Complementary and Alternative Medicine at  ... 
doi:10.1186/1472-6882-3-3 pmid:12846931 pmcid:PMC166167 fatcat:vqiurlipgjgzxn7t7wjvddkv4m

Reflections on the dimensions of trust and trustworthiness among online consumers

David Gefen
2002 ACM SIGMIS Database the DATABASE for Advances in Information Systems  
Trust is emerging as a potentially central aspect leading to IT acceptance. It is especially needed in the case of gaining and later retaining consumers of online vendors.  ...  To show the need to examine trust in a multi-dimensional perspective, this study proposes a three-dimensional scale of trustworthiness dealing with integrity, benevolence, and ability in the unique case  ...  Previous IS research adopted the same position, either studying trust as a single construct measuring overall trust in an ecommerce vendor (Gefen, 2000) , a single construct measuring trustworthiness  ... 
doi:10.1145/569905.569910 fatcat:pnxay6wd6ba5vok5gimps77jv4

Finding Significant Subregions in Large Image Databases [article]

Vishwakarma Singh, Arnab Bhattacharya, Ambuj K. Singh
2009 arXiv   pre-print
In this paper, we propose a solution to this problem of querying significant image subregions. We design a scoring scheme to measure the similarity of subregions.  ...  Our similarity measure extends to any image descriptor. All the images are tiled and each alignment of the query and a database image produces a tile score matrix.  ...  in order to be more useful than an online file cabinet.  ... 
arXiv:0906.3585v1 fatcat:evcjs2b2enhndiuroyb5fwiizm

SQALPEL: A database performance platform

Martin L. Kersten, Stefan Manegold, Ying Zhang, Panos Kuoutsourakis
2019 Conference on Innovative Data Systems Research  
Despite their popularity, database benchmarks only highlight a small fraction of the capabilities of any given DBMS.  ...  They often do not highlight problematic components encountered in real life database applications or provide hints for further research and engineering.  ...  We coined the term discriminative benchmark queries [6] and the goal is to find them for any pair of systems quickly. Performance repositories.  ... 
dblp:conf/cidr/KerstenMZK19 fatcat:ysnjk3f36fgb3etoo2ku3xjshe

Efficient passage ranking for document databases

Marcin Kaszkiel, Justin Zobel, Ron Sacks-Davis
1999 ACM Transactions on Information Systems  
An alternative retrieval method is to rank passages, that is, short fragments of documents, a strategy that can improve effectiveness and identify relevant material in documents that are too large for  ...  In this article we explore alternative query evaluation techniques, and develop new techniques for evaluating queries on passages.  ...  ACKNOWLEDGMENTS We are grateful to the anonymous referees for their extensive comments and feedback.  ... 
doi:10.1145/326440.326445 fatcat:ixas4xlmzzb3rmnysfwx35m7ty

Improving average ranking precision in user searches for biomedical research datasets

Douglas Teodoro, Luc Mottin, Julien Gobeill, Arnaud Gaudinat, Thérèse Vachon, Patrick Ruch
2017 Database: The Journal of Biological Databases and Curation  
Our system comprises a query expansion model based on word embeddings, a similarity measure algorithm that takes into consideration the relevance of the query terms, and a dataset categorisation method  ...  The use of data driven expansion methods, such as those based on word embeddings, could be an alternative to the complexity of biomedical terminologies.  ...  As an example of how the data processing works during an online search, let us consider the input query "T1 -Find protein sequencing data related to bacterial chemotaxis across all databases" submitted  ... 
doi:10.1093/database/bax083 pmid:29220475 pmcid:PMC5714153 fatcat:xa7eksyq2ndrdlhid54iddhgqi

Protein database search using compressed k-mer vocabularies

Lawrence Buckingham, Shlomo Geva, James M. Hogan
2018 Proceedings of the 23rd Australasian Document Computing Symposium on ZZZ - ADCS '18  
Where the k-mer collection is mapped to a set of words, sequence similarity may be measured using the Jaccard Index: J (A, B) = |A ∩ B| |A ∪ B| (1) In a genomic context, the Jaccard measure has been used  ...  A numerical score is assigned to each pair of symbols participating in an alignment, and penalties are assigned to gaps, and these are summed over the alignment to obtain an overall measure of similarity  ... 
doi:10.1145/3291992.3291997 dblp:conf/adcs/BuckinghamGH18 fatcat:yblbhgkqmzeq5cbyygf2nnsiji

Online Metabolomics Databases and Pipelines [chapter]

Adam J.
2012 Metabolomics  
Description: A study design database for GC/MS metabolomics experiments. Species: Plant species Reference data: Provides raw and processed GC/MS data for download together with metadata.  ...  Modes of access: Search, browse and download. Strengths: One of very few sites to archive and disseminate raw chromatograms. Experimental datasets may be downloaded as single zipped files.  ...  Major online sources of analytical reference spectra for metabolomics Madison Metabolomics Consortium Database (MMCD) Description: An analytical reference database and signal-matching tool for metabolomics  ... 
doi:10.5772/31021 fatcat:7nkgmwx72nesleacrrulcrwf4a

Clinical Prediction Models for Cardiovascular Disease

Benjamin S. Wessler, Lana Lai YH, Whitney Kramer, Michael Cangelosi, Gowri Raman, Jennifer S. Lutz, David M. Kent
2015 Circulation. Cardiovascular Quality and Outcomes  
There is an abundance of CPMs available for a wide assortment of cardiovascular disease conditions, with substantial redundancy in the literature.  ...  There are 77 distinct index/outcome pairings. Of the de novo models in this database, 450 (63%) report a c-statistic and 259 (36%) report some information on calibration.  ...  CPMs exist for a wide spectrum of CVDs. There are 31 index conditions represented in this database and 77 distinct index condition/outcome pairings.  ... 
doi:10.1161/circoutcomes.115.001693 pmid:26152680 pmcid:PMC4512876 fatcat:hjicb7p5oje5pdht4tnydpesva

Efficiently Answering Top-k Typicality Queries on Large Databases

Ming Hua, Jian Pei, Ada Wai-Chee Fu, Xuemin Lin, Ho-fung Leung
2007 Very Large Data Bases Conference  
answers. (2) The direct local typicality approximation using VP-trees provides an approximation quality guarantee. (3) A VP-tree can be exploited to index a large set of objects.  ...  Computing the exact answer to a top-k typicality query requires quadratic time which is often too costly for online query answering on large databases.  ...  quality guarantee. (3) A VP-tree can be exploited to index a large set of objects.  ... 
dblp:conf/vldb/HuaPFLL07 fatcat:zsd22kubdbbufedqdt54ulsjpm

Large expert-curated database for benchmarking document similarity detection in biomedical literature search

2019 Database: The Journal of Biological Databases and Curation  
We expect that this benchmark will be useful for stimulating the development of new powerful techniques for title and title/abstract-based search engines for relevant articles in biomedical research.  ...  The established database server located at https://relishdb.ict.griffith.edu.au is freely available for the downloading of annotation data and the blind testing of new methods.  ...  Campana 28 , Nicholas A. Kurniawan 29 , David Lalaouna 30 , Felix J. Hüttner 31 , Brooke A. Ammerman 32 , Felix Ehret 33 , Paul A.  ... 
doi:10.1093/database/baz085 pmid:33326193 pmcid:PMC7291946 fatcat:floik5bx6bdxpnvxnl64ryqhou

Database Foundations for Scalable RDF Processing [chapter]

Katja Hose, Ralf Schenkel, Martin Theobald, Gerhard Weikum
2011 Lecture Notes in Computer Science  
The first part of the lecture will introduce state-of-the-art techniques for scalably storing and querying RDF with relational systems, including alternatives for storing RDF, efficient index structures  ...  Moreover, for the last part of this chapter, we argue that extracting knowledge from the Web is an excellent showcase -and potentially one of the biggest challenges -for the scalable management of uncertain  ...  YARS2 uses three different index types to index the data: (i) a keyword index using Apache Lucene 6 as an inverted index -this index maps terms occurring in an RDF object of a triple to the subject, (ii  ... 
doi:10.1007/978-3-642-23032-5_4 fatcat:5owq3argizaj3epzu4yhuuxc6i
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