There  has  been  considerable  debate  over  what  the  sources  of  morphological  variation  in  second  language acquisition  are.  From  among  various  hypotheses  put  forth  on  the  topic,  the  feature  reassembly  hypothesis (Lardiere, 2005) assumes that it is the reconfiguration of features in the L2 which causes variation between the performance of natives and non-natives. Acknowle...

Although Bayes’s theorem demands a prior that is a probability distribution on the parameter space, the calculus associated with Bayes’s theorem sometimes generates sensible procedures from improper priors, Pitman’s estimator being a good example. However, improper priors may also lead to Bayes procedures that are paradoxical or otherwise unsatisfactory, prompting some authors to insist that al...

In a previous paper, we presented a meaning based information theory in which the core concept is an informalogical space. We introduced the concepts of an information net in an informalogical space, a piece of limit information of an information net, a separated informalogical space and a first countable informalogical space. We built a convergence theory of information nets and applied the co...

Arhangel’skĭı [3] has introduced a weakening of σ-compactness: having a countable core, for locally compact spaces, and asked when it is equivalent to σ-compactness. We settle several problems related to that paper. The concept of countable core in [3] is a little hard to understand at first; Arhangel’skĭı, however, provides equivalents which are easier to understand, and so we will take one of...

This paper presents a hybrid approach for correcting grammatical errors in the sentences uttered by Korean learners of English. The error correction system plays an important role in GenieTutor, which is a dialogue-based English learning system designed to teach English to Korean students. During the talk with GenieTutor, grammatical error feedback and better expressions are offered to learners...

In this paper it is studied the role of the axiom of choice in some theorems in which the concepts of first and second countability are used. Results such as the following are established: (1) In ZF (Zermelo–Fraenkel set theory without the axiom of choice), equivalent are: (i) every base of a second countable space has a countable subfamily which is a base; (ii) the axiom of countable choice fo...

Although Bayes’s theorem demands a prior that is a probability distribution on the parameter space, the calculus associated with Bayes’s theorem sometimes generates sensible procedures from improper priors, Pitman’s estimator being a good example. However, improper priors may also lead to Bayes procedures that are paradoxical or otherwise unsatisfactory, prompting some authors to insist that al...

Introduction. Let G be a locally compact, connected topological group (satisfying the second countability axiom). Let G* be a compact space which contains a dense subset G' homeomorphic to the space G and is such that G* — G' is totally disconnected. Then, Freudenthal has proved [l, Satz IX, p. 277]1 that the set G*-G' consists of at most two distinct points. Actually, Freudenthal's theorem eve...

Leaving out necessary task steps is the single most common human error type. Certain task steps possess characteristics that are more likely to provoke omissions than others, and can be identified in advance. The paper reports two studies. The first, involving a simple photocopier, established that failing to remove the last page of the original is the commonest omission. This step possesses fo...