Related Experiment Video
Updated: May 29, 2026
07:26
Executing Complexity-Increasing Queries in Relational (MySQL) and NoSQL (MongoDB and EXist) Size-Growing ISO/EN 13606 Standardized EHR Databases
Published on: March 19, 2018
Translation of fuzzy queries for relational database system
1Knowledge Systems Laboratory, Department of Information Engineering, University of Illinois, Chicago, IL 60680.
IEEE Transactions on Pattern Analysis and Machine Intelligence
|August 27, 2011
Summary
This study introduces a database skeleton to bridge user and system understanding of data. This structure aids in translating and clarifying fuzzy queries using conceptual graphs.
Area of Science:
- Computer Science
- Database Management
- Information Retrieval
Background:
- Traditional databases struggle with ambiguous user queries.
- Bridging the gap between user perception and system data representation is challenging.
- Existing query languages lack robust mechanisms for handling fuzzy or imprecise information.
Purpose of the Study:
- To introduce the concept of a database skeleton for improved data interpretation.
- To describe a novel approach for translating and disambiguating fuzzy database queries.
- To present the eXtensible Query Language (XQL) and its translator.
Main Methods:
- Development of a database skeleton comprising a conceptual schema (conceptual graphs) and a relational schema (information graph).
- Utilizing conceptual graphs within the database skeleton to analyze and clarify query semantics.
- Introduction and detailed description of the eXtensible Query Language (XQL) and its associated translator.
Main Results:
- The database skeleton effectively models both user and system perspectives of data relationships.
- Conceptual graphs facilitate the disambiguation of fuzzy queries by analyzing their meaning within the database context.
- The eXtensible Query Language (XQL) provides a mechanism for querying databases with enhanced precision.
Conclusions:
- The database skeleton offers a robust framework for managing complex data interrelationships.
- Employing conceptual graphs within the skeleton significantly enhances fuzzy query processing.
- The eXtensible Query Language (XQL) represents a promising advancement in database query capabilities.
Related Concept Videos
02:07Improving Translational Accuracy
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
02:07Improving Translational Accuracy
Base complementarity between the three base pairs of mRNA codon and the tRNA anticodon is not a failsafe mechanism. Inaccuracies can range from a single mismatch to no correct base pairing at all. The free energy difference between the correct and nearly correct base pairs can be as small as 3 kcal/ mol. With complementarity being the only proofreading step, the estimated error frequency would be one wrong amino acid in every 100 amino acids incorporated. However, error frequencies observed in...
02:28Leaky Scanning
During most eukaryotic translation processes, the small 40S ribosome subunit scans an mRNA from its 5' end until it encounters the first start AUG codon. The large 60S ribosomal subunit then joins the smaller one to initiate protein synthesis. The location of the translation initiation is largely determined by the nucleotides near the start codon as there may be multiple translation initiation sites present on the mRNA. Marilyn Kozak discovered that the sequence RCCAUGG (where R stands for...
01:31Translation
Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
01:31Translation
Lesson: Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
01:31Translation
Translation is the process of synthesizing proteins from the genetic information carried by messenger RNA (mRNA). Following transcription, it constitutes the final step in the expression of genes. This process is carried out by ribosomes, complexes of protein and specialized RNA molecules. Ribosomes, transfer RNA (tRNA), and other proteins produce a chain of amino acids—the polypeptide—as the end product of translation.
Translation Produces the Building Blocks of Life
Proteins are called the...
Translation Produces the Building Blocks of Life
Proteins are called the...