An empirical evaluation of XQuery processors
نویسندگان
چکیده
منابع مشابه
An Empirical Evaluation of XQuery Processors
This paper presents an extensive and detailed experimental evaluation of XQuery processors. The study consists of running five publicly available XQuery benchmarks—the Michigan benchmark (MBench), XBench, XMach-1, XMark and X007—on six XQuery processors, three stand-alone (file-based) XQuery processors (Galax, Qizx/Open, Saxon-B) and three XML/XQuery database systems (BerkeleyDB/XML, MonetDB/XQ...
متن کاملDeferred Node-copying Scheme for XQuery Processors
XQuery is generic, widely adopted language for querying and manipulating XML data. Many of currently available native XML databases are using XQuery as its primary query language. The XQuery specification requires each XML node to belong to exactly one XML tree. In case of the XML subtree is appended into a new XML structure, the whole subtree has to be copied. This may lead into excessive and ...
متن کاملan investigation into iranian teachers consistency and bias in evaluation of students writings
while performance-based language assessment has led to an increased authenticity and content validity in the practice of writing assessment, the reliability of ratings has become a major issue. research findings have shown different reactions by native english speaker (nes) and non-native english speaker (nns) teachers to students’ writings. the focus of this study is on investigating whether i...
An empirical study of dynamic scheduling on rings of processors
We empirically analyze and compare two distributed, low-overhead policies for scheduling dynamic treestructured computations on rings of identical PEs. Our experiments show that both policies give significant parallel speedup on large classes of computations, and that one yields almost optimal speedup on moderate size rings. We believe that our methodology of experiment design and analysis will...
متن کاملXLive: Integrating Sources with XQuery - An Efficient XQuery Evaluation Prototype with TGV
This paper presents an efficient evaluation of XQuery in a heterogeneous distributed system. XQuery(W3C, 2005) is a rich and so a complex language. Its syntax allows us to express a large scale of queries over XML documents. We have extended (Chen et al., 2003) proposal to rewrite XQuery expressions in ”canonical XQuery” in order to support the full XQuery specification. The XQuery expressivene...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Information Systems
سال: 2008
ISSN: 0306-4379
DOI: 10.1016/j.is.2007.05.004