Results 31 to 40 of about 337,613 (156)
Consistency and Trust in Peer Data Exchange Systems
, 2016 We propose and investigate a semantics for "peer data exchange systems" where different peers are related by data exchange constraints and trust relationships. These two elements plus the data at the peers' sites and their local integrity constraints are
Bertossi, Leopoldo, Bravo, Loreto
core +1 more source
A Formalization of SQL with Nulls [PDF]
arXiv, 2020 SQL is the world's most popular declarative language, forming the basis of the multi-billion-dollar database industry. Although SQL has been standardized, the full standard is based on ambiguous natural language rather than formal specification. Commercial SQL implementations interpret the standard in different ways, so that, given the same input data,
arxiv
Constraint-based Query Distribution Framework for an Integrated Global Schema
, 2009 Distributed heterogeneous data sources need to be queried uniformly using global schema. Query on global schema is reformulated so that it can be executed on local data sources.
Iftikhar, Nadeem +3 more
core +1 more source
Conditional Pulse Nulling Receiver for Multi-pulse PPM and Binary Quantum Coding Signals [PDF]
, 2016 Conditional pulse nulling (CPN) receiver is proposed by Dolinar to discriminate pulse position modulation (PPM) signals. The receiver using a beam splitter and an on-off photon detector can outperform the standard quantum limit (SQL) for PPM signals. In this paper, we apply this receiver to multi-pulse PPM (MPPM) and binary quantum coding signals, and ...
arxiv +1 more source
Sustainable Development, EarlyView.ABSTRACT Tourism serves as a critical driver of economic development, yet its relationship with macroeconomic and socio‐political factors remains underexplored in emerging economies like Bangladesh. This study examines the long‐run and short‐run impacts of macroeconomic drivers, including CO₂ emissions, GDP growth, inflation, population growth, road ...
Bapon Chandra Kuri +4 more
wiley +1 more source
The teaching of Relational On-Line Analytical Processing (ROLAP) in Advanced Database courses. [PDF]
, 2012 Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full ...
Ansari, Iftikhar, Byrne, Bernadette
core
HIE-SQL: History Information Enhanced Network for Context-Dependent Text-to-SQL Semantic Parsing [PDF]
arXiv, 2022 Recently, context-dependent text-to-SQL semantic parsing which translates natural language into SQL in an interaction process has attracted a lot of attention. Previous works leverage context-dependence information either from interaction history utterances or the previous predicted SQL queries but fail in taking advantage of both since of the mismatch
arxiv
CQR-SQL: Conversational Question Reformulation Enhanced Context-Dependent Text-to-SQL Parsers [PDF]
arXiv, 2022 Context-dependent text-to-SQL is the task of translating multi-turn questions into database-related SQL queries. Existing methods typically focus on making full use of history context or previously predicted SQL for currently SQL parsing, while neglecting to explicitly comprehend the schema and conversational dependency, such as co-reference, ellipsis ...
arxiv
How Software Design Affects Energy Performance: A Systematic Literature Review
Journal of Software: Evolution and Process, Volume 37, Issue 4, April 2025.This SLR provides insight into the state of the art of the field investigating how software transformation impacts energy performance. While a wide array of design patterns, refactorings, and code smells have been examined from this perspective, there remains much to explore in future work.
Déaglán Connolly Bree +1 more
wiley +1 more source
Translating Relational Queries into Spreadsheets [PDF]
, 2013 Spreadsheets are among the most commonly used applications for data management and analysis. Perhaps they are even among the most widely used computer applications of all kinds. They combine in a natural and intuitive way data processing with very diverse supplementary features: statistical functions, visualization tools, pivot tables, pivot charts ...
arxiv +1 more source