Two major problems in constructing data federations (for example, data warehouses and database federations) concern achieving and maintaining consistency and a uniform representation of the data on the global level of the federation. The first step in creating uniform representations of data is known as data extraction, whereas data reconciliation is concerned with resolving data inconsistencie...

This paper shows how to extend RBAC sessions with dynamic aspects to deal with user switch. Users can authenticate using their functions which will create a dynamic session and automatically activate a set of privileges associated with this function. A dynamic session can be joined, leaved, restarted and reused by authorized users. Moreover, a user can switch the session to another user in orde...

The paper describes an annotation scheme for English based on Panini’s concept of karakas. We describe how the scheme handles certain constructions in English. By extending the karaka scheme for a fixed word order language, we hope to bring out its advantages as a concept that incorporates some ‘local semantics’. Our comparison with PTB-II and PropBank brings out its intermediary status between...

An on-chip deformability checker is proposed to improve the velocity–deformation correlation for red blood cell (RBC) evaluation. RBC deformability has been found related to human diseases, and can be evaluated based on RBC velocity through a microfluidic constriction as in conventional approaches. The correlation between transit velocity and amount of deformation provides statistical informati...

This paper investigates an interesting type of existential construction in Tagalog and proposes an analysis of it in terms of Role and Reference Grammar. The construction in question is known as an ‘event existential’ and is exemplified in (1), and it contrasts with a ‘plain’ or ‘nominal’ existential construction in (2). Example (1) is from Aldridge (2011), who presents a Minimalist analysis of...

In this work, we propose a new method to integrate two recent lines of work: unsupervised induction of shallow semantics (e.g., semantic roles) and factorization of relations in text and knowledge bases. Our model consists of two components: (1) an encoding component: a semantic role labeling model which predicts roles given a rich set of syntactic and lexical features; (2) a reconstruction com...

Coreference resolution plays a critical role in discourse analysis. This paper focuses on exploiting zero pronouns to improve Chinese coreference resolution. In particular, a simplified semantic role labeling framework is proposed to identify clauses and to detect zero pronouns effectively, and two effective methods (refining syntactic parser and refining learning example generation) are employ...

We propose a method for labelling prepositional phrases according to two different semantic role classifications, as contained in the Penn treebank and the CoNLL 2004 Semantic Role Labelling data set. Our results illustrate the difficulties in determining preposition semantics, but also demonstrate the potential for PP semantic role labelling to improve the performance of a holistic semantic ro...

The paper describes the metrological hierarchy established for the dissemination of angle measurements from the “Dimensional Metrology Laboratory” (LAMIN) of the “National Institute of Metrology, Standardisation and Industrial Quality” (INMETRO). It shows the traceability chain from the national standard of length to the reference system, a small angle generator, and then to angle standards and...

Extending a machine learning based coreference resolution system with a feature capturing automatically generated information about semantic roles improves its performance.