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Fall 2022
As people age, they adjust how they associate objects. We examine the interplay between age and various aspects of object similarity. For this, we perform two experiments: one between adults aged 25–35 and 50–60 and another between six-year-olds and adults. Between 25–35- and 50–60-year-olds, we...
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Spring 2021
In Canada, federal and provincial governments have implemented carbon pricing to reduce carbon emissions. One effect of a price on carbon is increasing the cost of using private vehicles, which may reduce mobility and increase the risk of social exclusion, especially where car dependence is high....
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Identifying negative language transfer in learner writing: using syntactic information to model structural differences
DownloadFall 2021
Second language learners transfer rules from their native languages when trying to communicate in the new language. When the transferred rules do not match the second language grammar, this reuse results in errors. Although this phenomenon is well known and documented by linguists and language...
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Fall 2019
Question answering (QA) is the task of automatically finding answers to natural language questions. A QA system requires access to some form of knowledge in order to find the answers. Most QA tasks use raw text corpora or structured knowledge bases as knowledge. However, raw text corpora,...
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Spring 2020
Natural Language Processing (NLP) and understanding aims to read from unformatted text to accomplish different tasks. As a first step, it is necessary to represent text as a simplified model. Traditionally, Vector Space Model (VSM) is most commonly used, in which text is represented as a bag of...
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Fall 2018
Knowledge bases (KBs), repositories consisting of entities, facts about entities, and relations between entities, are a vital component for many tasks in artificial intelligence and natural language processing such as semantic search and question answering. Named Entity Disambiguation (NED), the...