Title of Document: USING NEW MEASURES OF IMPLICIT L2 KNOWLEDGE TO STUDY THE INTERFACE OF EXPLICIT AND IMPLICIT KNOWLEDGE Yuichi Suzuki, Doctor of Philosophy, 2015 Directed By: Dr. Robert M. DeKeyser, Second Language Acquisition Second language acquisition (SLA) becomes extremely difficult for late second language (L2) learners, who are assumed to have passed the sensitive or critical period for...

Research on Question Answering has produced an arsenal of useful techniques for detecting answers that are explicitly present in the text of a collection of documents. To move beyond current capabilities, effort must be directed toward analyzing the source documents and interpreting them by representing their content, abstracting away from the particular linguistic expressions used. The content...

This study aimed to investigate the effects of Systemic Theoretical Instruction (STI), grounded in Socio-cultural Theory and proposed by Gal’perin, on developing Iranian EFL learners’ knowledge of English tense-aspect system. To this end, two low-intermediate classes, including 24 and 21 language learners aged between 12-19, were taught the distinction between simple past and present perfect te...

It is commonplace in artificial intelligence to draw a distinction between the explicit knowledge appearing in an agent's memory and the implicit knowledge it represents. Many AI theories of knowledge assume this representation relation is logical, that is, that implicit knowledge is derived from explicit knowledge via a logic. Such theories, however, are limited in their ability to treat incom...