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Full-Text Articles in Library and Information Science
Improving Query Reformulation In Voice Search, Ning Sa
Improving Query Reformulation In Voice Search, Ning Sa
Legacy Theses & Dissertations (2009 - 2024)
Conversational search has been obtaining increasing attentions in the field of Information Retrieval (IR). However, compared with the other applications of dialogue systems, the studies on conversational search are far from being sufficient. Lot of work is needed from the input to the output of the conversational search process. On the other hand, with the improvement in the Automatic Speech Recognition (ASR) technology, voice is now an optional input method in addition to text. Compared with the text-based queries, voice-based queries are found to be longer, and use richer language. The voice-based search is also found to be more flexible …
Clinical Information Extraction From Unstructured Free-Texts, Mingzhe Tao
Clinical Information Extraction From Unstructured Free-Texts, Mingzhe Tao
Legacy Theses & Dissertations (2009 - 2024)
Information extraction (IE) is a fundamental component of natural language processing (NLP) that provides a deeper understanding of the texts. In the clinical domain, documents prepared by medical experts (e.g., discharge summaries, drug labels, medical history records) contain a significant amount of clinically-relevant information that is crucial to the overall well-being of patients. Unfortunately, in many cases, clinically-relevant information is presented in an unstructured format, predominantly consisting of free-texts, making it inaccessible to computerized methods. Automatic extraction of this information can improve accessibility. However, the presence of synonymous expressions, medical acronyms, misspellings, negated phrases, and ambiguous terminologies make automatic extraction …