Nowadays, AC charging piles are widely used, and with the increasing number of piles, harmonic pollution generated by them becomes more serious affects power quality grid. Aiming at problem control single-phase pile, it is decided to apply active filter technology. The parallel (PAPF) selected according characteristics pile. single detection method studied based on instantaneous reactive theory...

Current Arabic lexicons, whether computational or otherwise, make no distinction between entries from Modern Standard Arabic (MSA) and Classical Arabic (CA), and tend to include obsolete words that are not attested in current usage. We address this problem by building a large-scale, corpus-based lexical database that is representative of MSA. We use an MSA corpus of 1,089,111,204 words, a pre-a...

This paper describes the integration of corpus-based syntactic subcategorization frames and correlated semantic information into a large-scale, cross-theoretically informed lexical database for French (Romary et al. (2004)). This database is the first to implement the Lexical Markup Framework (LMF), an international initiative towards ISO standards for lexical databases (ISO TC 37/SC 4). The su...

The integration of domain terminological resources is a major issue for their full utilization. This integration is made difficult by the nature of these resources and their formal representation heterogeneity. In order to tackle this integration problem, we foster a solution based on metamodeling: the unfied metamodel for structured vocabularies. In this abstract, we sketch out assets for usin...

Internet communication plays a considerable part in economic, financial and even politic domains. It is greatly influencing the politic revolution of many Arabic countries. That allows Internet communication to take more and more scale especially in an Arabic context. In this case, we notice that Internet communication is based on textual interchange using Arabic dialects more than Arabic langu...

We present the data structure of a lexical resource—the French Lexical Network (FLN)—, that is being hand-crafted using a knowledge-based lexicographic editor. The FLN is formally a lexical graph whose structuring is mainly supported by the system of paradigmatic and syntagmatic lexical functions of the Meaning-Text linguistic approach. Section 1 offers a general characterization of the FLN. Se...

We introduce a novel family of adaptive robust equalizers for highly challenging underwater acoustic (UWA) channel equalization. Since the underwater environment is highly non-stationary and subjected to impulsive noise, we use adaptive filtering techniques based on a relative logarithmic cost function inspired by the “competitive methods” from the online learning literature. To improve the con...

The goal of this paper is to introduce the RCFA (Recursive Cost Function Adaptation) algorithm. The derivation of the new algorithm does not use an estimator of the instantaneous error as the previous CFA (Cost Function Adaptation) algorithms did. In the RCFA case, the new error power is computing from the previous error power using an usual LMS recursive equation. The proposed method improves ...

A new stochastic gradient algorithm for data echo cancellation, based on the cost function adaptation (CFA) is Proposed. Qualities of the new adaptation algorithm as compared with that of the least mean square (LMS) and the least mean fourth (LMF) algorithms are demonstrated by means of simulations. Thus it is shown that continuous and automatic, adaptation of the error power yields a more sati...