This work presents the query language TQL, a query language for semistructured data, that can be used to query XML files. TQL substitutes the standard path-based pattern-matching mechanism with a logic-based mechanism, where the programmer specifies the properties of the pieces of data she is trying to extract. As a result, TQL queries are more ‘declarative’, or less ‘operational’, than queries...

1. ARsTRAm. REMIT Relational Model Interpreter and Translator is a formal query language to natural language interpreter designed to aid query verification in a relational database environment. The system has been developed to work in conjunction with the ICL natural language query interface, NEL, which translates English query expressions into the formal query language QUERYMASTER. Funding for...

We present an implemented XML data model and a new, simplified query language for multi-level annotated corpora. The new query language involves automatic conversion of queries into the underlying, more complicated MMAXQL query language. It supports queries for sequential and hierarchical, but also associative (e.g. coreferential) relations. The simplified query language has been designed with ...

We study the annotation of the Prague Dependency Treebank 2.0 (PDT 2.0) and assemble a list of requirements on a query language that would allow searching for and studying all linguistic phenomena annotated in the treebank. We propose an extension to the query language of an existing search tool Netgraph 1.0 and show that the extended query language satisfies the list of requirements. We demons...

In this paper we present a graphical query language for Geographical Information System. This language is based on a graphical Query-By-Example-like (QBE) philosophy. A set of graphical primitives (icons) represents data or operations such as inclusion, intersection, etc. The user-defined query is made by composition of these icons. The application of the icons defines the query as the data are...

⎯The unified multimedia query language (UMQL) is a powerful general-purpose multimedia query language, and it is very suitable for multimedia information retrieval. The paper proposes a grammar analysis model to implement an effective grammatical processing for the language. It separates the grammar analysis of a UMQL query specification into two phases: syntactic analysis and semantic analysis...

This paper reports on the evolution of the spatial (sketchbased) query language VISCO and its implementation. The first design of VISCO’s query language was presented at VL ’97. The language is based on a strong naive physics metaphor for query objects (e.g. marbles, nails, rubberbands). We shortly review the prominent aspects of the revised version of VISCO’s query language. The main focus of ...

Attribute information in a natural language query is one of the key features for converting a natural language query into a Structured Query Language1 (SQL) in Natural Language Interface to Database systems. In this paper, we explore the task of classifying the attributes present in a natural language query into different SQL clauses in a SQL query. In particular, we investigate the effectivene...

We describe a general multimedia query language, called MOQL, based on ODMG's Object Query Language (OQL). In contrast to previous multimedia query languages that are either designed for one particular medium (e.g. images) or specialized for a particular application (e.g., medical imaging), MOQL is general in its treatment of multiple media and di erent applications. The language includes const...