منابع مشابه
Concurrent Processing of Text Corpus Queries
The fast evaluation of complex queries on big text corpora is an important feature of corpus managers. The aim of this paper is to apply approaches of concurrent processing to the query evaluation in the corpus management system Manatee. The work contains an evaluation of the query processing speed using various number of cores available, and also a comparison of the length of the source code b...
متن کاملImproving Full-Text Precision on Short Queries using Simple Constraints
We show that two simple constraints, when applied to short user queries (on the order of 5{10 words) can yield precision scores comparable to or better than those achieved using long queries (50{85 words) at low document cuto levels. These constraints are meant to detect documents that have subtopic passages that includes the most important components of the query. The constraints are: (i) a si...
متن کاملProcessing XML Queries with Structural and Full-Text Constraints
Efficient query processing on XML data is an important task for querying the data web. In this paper, we consider the XML query which can be represented as a query tree with twig patterns, and also consists of complex full-text constraints. Two approaches are proposed. The structure-first approach will first identify the elements which satisfy the tag constraint, and then process the full-text ...
متن کاملThe Impact of Input Enrichment in Long Text vs. Short Texts on Grammatical Accuracy in Writing Among Elementary Language Learners
This study was conducted to investigate the influence of teaching accurate grammar inwriting via enriched long text and short text for the elementary students atShokouhe_Farhang institute. The homogenized subjects were divided into two groups of 18and 17 participants. Using a writing exam as a pretest in order to check the students’knowledge in English past tense. The control group received the...
متن کاملStructured Queries Over Web Text
The Web contains a vast amount of text that can only be queried using simple keywords-in, documentsout search queries. But Web text often contains structured elements, such as hotel location and price pairs embedded in a set of hotel reviews. Queries that process these structural text elements would be much more powerful than our current document-centric queries. Of course, text does not contai...
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ژورنال
عنوان ژورنال: ACM Transactions on Information Systems
سال: 2017
ISSN: 1046-8188,1558-2868
DOI: 10.1145/3052772