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Evaluation the algorithms of fuzzy temporal databases join operations

Liguo Deng, Z.M. Ma, Gang Zhang
2009 2009 IEEE International Conference on Systems, Man and Cybernetics  
This includes moving-objects, sensors and biological databases here has been recent interest in the development of database management systems that can handle uncertain data.  ...  In many applications data values are inherently uncertain.  ...  Given the need for managing uncertain data, several researchers have recently proposed the development of database systems that manage uncertain data [1, 2, 3, 7] .  ... 
doi:10.1109/icsmc.2009.5346362 dblp:conf/smc/DengMZ09 fatcat:wwrgrhdf6rcyzhrr6tzhle36sm

XML queries and algebra in the Enosys integration platform

Yannis Papakonstantinou, Vinayak Borkar, Maxim Orgiyan, Kostas Stathatos, Lucian Suta, Vasilis Vassalos, Pavel Velikhov
2003 Data & Knowledge Engineering  
in a system that follows the conventional architecture of database systems. ¤ Contact: yannis@enosysmarkets.com by having the rewriter/optimizer transform the algebraic expressions in a way that sub-expressions  ...  Finally, the query processor lazily evaluates the result, using an appropriate adaptation of relational database iterator models to XML.  ...  The outerjoin operator is de¯ned in the same way that is de¯ned in relational systems.  ... 
doi:10.1016/s0169-023x(02)00141-6 fatcat:t4cmezfmn5evppjzrs7a4tcw24

Querying data provenance

Grigoris Karvounarakis, Zachary G. Ives, Val Tannen
2010 Proceedings of the 2010 international conference on Management of data - SIGMOD '10  
., incremental maintenance, trust assessment, debugging schema mappings, keyword search over databases, or query answering in probabilistic databases), involve computations that look at how a tuple was  ...  In recent years there has been significant progress on formal models for provenance.  ...  We thank Peter Buneman, Steve Zdancewic, Susan Davidson, Boon Thau Loo, the members of the Penn Database Group, and the anonymous reviewers for their feedback and suggestions.  ... 
doi:10.1145/1807167.1807269 dblp:conf/sigmod/KarvounarakisIT10 fatcat:kchxoipfkrbg3dgrenfwokumwu

The roles of artificial intelligence in information systems [chapter]

Gio Wiederhold
1991 Lecture Notes in Computer Science  
In that structure processing modules become specialized. We argue that arti cial intelligence programs should remain simple and constrained to a single ontology.  ...  For items where only a partial match exists, as exempli ed by outerjoin results in relation models, null values are created.  ...  Ignoring the result when the match is uncertain can involve great risk | there may be dangerous material in this town, and people have to be noti ed.  ... 
doi:10.1007/3-540-54563-8_68 fatcat:s35l2evf7vdh3pd643fhfqpgcm

The roles of artificial intelligence in information systems

Gio Wiederhold
1992 Journal of Intelligent Information Systems  
In that structure processing modules become specialized. We argue that arti cial intelligence programs should remain simple and constrained to a single ontology.  ...  For items where only a partial match exists, as exempli ed by outerjoin results in relation models, null values are created.  ...  Ignoring the result when the match is uncertain can involve great risk | there may be dangerous material in this town, and people have to be noti ed.  ... 
doi:10.1007/bf01006413 fatcat:5cx2mxu6gbftnm2niqkquvnqti

Probabilistic Databases

Dan Suciu, Dan Olteanu, Christopher Ré, Christoph Koch
2011 Synthesis Lectures on Data Management  
databases the grant/deny decision is uncertain.  ...  generalize the simple selection problem to probabilistic databases: the attribute in the data is uncertain and given by a probabilistic histogram, and the value being searched is also uncertain.  ...  He is interested in both the theoretical and systems-oriented aspects of data management, and he currently works on managing uncertain and probabilistic data, research at the intersection of databases,  ... 
doi:10.2200/s00362ed1v01y201105dtm016 fatcat:2bpr73ml4ffkhmnj37mjbmwgsu

Adaptive query processing

A. Deshpande, J. M. Hellerstein, V. Raman
2006 Proceedings of the 2006 ACM SIGMOD international conference on Management of data - SIGMOD '06  
In this survey paper, we identify many of the common issues, themes, and approaches that pervade this work, and the settings in which each piece of work is most appropriate.  ...  As the data management field has diversified to consider settings in which queries are increasingly complex, statistics are less available, or data is stored remotely, there has been an acknowledgment  ...  Acknowledgments We would like to express our thanks to our collaborators in the field of adaptive query processing, especially Sirish Chandrasekaran, Mike Franklin, Peter Haas, Alon Halevy, Joe Hellerstein  ... 
doi:10.1145/1142473.1142603 dblp:conf/sigmod/DeshpandeHR06 fatcat:geklxibgbzdjtix2axmtuhuewu

Negation in temporal-probabilistic databases

Aikaterini Papaioannou
2019
The need to manage large, temporal-probabilistic (TP) datasets appears in a wide range of applications such as data cleaning, scientific databases, RFID data.  ...  Despite the extensive research in temporal and probabilistic databases, the combination of intervals and probabilities has received little attention and the computation of TP operations with negation has  ...  In an effort to provide a closed and complete representation model for uncertain relational data, they introduced Uncertainty and Lineage Databases (ULDBs) [BSH + 08].  ... 
doi:10.5167/uzh-167567 fatcat:wmbr3p57ajayzifmw2pexk4haa

In pursuit of streamable stylesheet functions in XSLT 3.0

Abel Braaksma
Proceedings of Balisage: The Markup Conference 2014   unpublished
database.  ...  in formats ranging from text to PDF and, after some processing, place it in their database.  ...  In this way, we automatically dump the XML contents to the database.  ... 
doi:10.4242/balisagevol13.braaksma01 fatcat:fheervshljapjkzyjyoo25yhxm