Over the past decades, increasing interest in code-switching has triggered numerous empirical studies in the foreign language classroom, which show that the switching to L1 has become an important strategy in foreign language teaching and its implication in bilingual classroom is of great importance. This paper is a preliminary endeavor to probe into the situation of the switching to the L1 in ...

The use of L1 regularisation for sparse learning has generated immense research interest, with many successful applications in diverse areas such as signal acquisition, image coding, genomics and collaborative filtering. While existing work highlights the many advantages of L1 methods, in this paper we find that L1 regularisation often dramatically under-performs in terms of predictive performa...

We examined United States Surveillance, Epidemiology, and End Results incidence data and conducted a population-based case-control study to examine the role of human papillomavirus (HPV) and oral contraceptive (OC) use in the etiology of adenocarcinoma in situ of the cervix (ACIS). One hundred and fifty women diagnosed with ACIS and 651 randomly selected control women completed in-person interv...

We use L1 regularized transductive regression to learn mappings between source and target features of the training sets derived for each test sentence and use these mappings to rerank translation outputs. We compare the effectiveness of L1 regularization techniques for regression to learn mappings between features given in a sparse feature matrix. The results show the effectiveness of using L1 ...

Based on empirical research and qualitative analysis, this paper aims to explore the effects of L1 use on L2 vocabulary teaching. The results show that, during L2 vocabulary teaching process, the proper application of L1 can effectively facilitate the memorization of new words, and the bilingual method (both English explanation and Chinese translation) is welcomed by most subjects. Therefore, t...

Let g(n, l1, l2, d, t, q) be the number of general 4-regular graphs on n labelled vertices with l1 + 2l2 loops, d double edges, t triple edges and q quartet edges. We use inclusion and exclusion with five types of properties to determine the asymptotic behavior of g(n, l1, l2, d, t, q) and hence that of g(2n), the total number of general 4-regular graphs where l1, l2, d, t and q = o( √ n), resp...

This lecture concerns partial evaluation. Comparisons are made between partial evaluation and compiling. Two principles are given that help determine when to use partial evaluation. We show how a partial evaluator can be used to translate a program from one language L2 into another language L1 even if the partial evaluator’s capabilities are limited so that its input is an L1 program and its ou...

In the field of second language (L2) production, phonetic investigations of L2 fricatives are rare due to the complexity of establishing similarities and differences between L1 and L2 fricatives. The study of English /s/ production by L2 Thai learners has not received much attention, as researchers on L2 English have typically believed that learners would produce this sound with ease due to the...

Abstract Background and Aims: The human papilloma virus was introduced as the major etiological agent in outbreak of cervical cancer in 1970. Since it is very difficult to recognize these viruses and their types using the serological tests and cell culture, molecular methods such as PCR are of great importance. Therefore, in this study, our goal was to use a multiple specific PCR assay on ...