Dictionaries are collections of vectors used for representations of random vectors in Euclidean spaces. Recent research on optimal dictionaries is focused on constructing dictionaries that offer sparse representations, i.e., l0-optimal representations. Here we consider the problem of finding optimal dictionaries with which representations of samples of a random vector are optimal in an l2-sense...

For almost 14 years in the Language Engineering Group we have worked on a wide variety of Natural Language Processing (NLP) problems, being one of the earliest in the creation and operation of onomasiological dictionaries. During that time we have focused on search engine dictionary improvement, but recently our aim has been a development methodology for creating specialized onomasiological dic...

the current research is based on comprehensive studies in the field of arabic dictionaries compilations as well as experiences of authors in imparting the arabic language education in iran for years. as any language learning requires a dictionary, and since researchers in the area of second language teaching always suggest using monolingual dictionaries, it seems necessary to discuss the merits...

Dictionaries adapted to the data provide superior performance when compared to predefined dictionaries in applications involving sparse representations. Algorithmic stability and generalization are desirable characteristics for dictionary learning algorithms that aim to build global dictionaries which can efficiently model any test data similar to the training samples. In this paper, we propose...

Innovative Access Structures in Mobile Dictionaries. The access structure of any dictionary is an important one. It provides the user with a means to obtain required data or extract valuable information. This mostly overlaps other structures such as macro-, micro- and mediostructure, which turn creates different routes can follow try satisfy his her lexicographic needs. In printed dictionaries,...

Dictionaries are an integral part of language learning process to fulfill learners’ linguistic and academic needs. Recently, COVID-19 pandemic has had many effects on students’ life styles, forcing them switch electronic during lockdown restrictions. As a result, Internet-based dictionaries became more available, altering attitudes in dealing with various types dictionaries. This study aims at ...

Despite the big amount of general language dictionaries in electronic form, those coming from specialised areas are still “under construction”. There are two main reasons for this: firstly, the need for these dictionaries was/is less essential than the need for general language dictionaries, since these were/are aiming mainly to specialists, and secondly many specialised areas are changing over...