Negation and Speculation Detection in Clinical and Review Texts
نویسنده
چکیده
PhD Thesis written by Noa P. Cruz Díaz at the University of Huelva under the supervision of Dr. Manuel J. Maña López. The author was examined on 10th July 2014 by a committee formed by the doctors Manuel de Buenaga (European University of Madrid), Mariana Lara Neves (University of Berlin) and Jacinto Mata (University of Huelva). The PhD Thesis was awarded Summa cum laude (International Doctorate).
منابع مشابه
Detecting Negated and Uncertain Information in Biomedical and Review Texts
The thesis proposed here intends to assist Natural Language Processing tasks through the negation and speculation detection. We are focusing on the biomedical and review domain in which it has been proven that the treatment of these language forms helps to improve the performance of the main task. In the biomedical domain, the existence of a corpus annotated for negation, speculation and their ...
متن کاملMarker Words for Negation and Speculation in Health Records and Consumer Reviews
Conditional random fields were trained to detect marker words for negation and speculation in two corpora belonging to two very different domains: clinical text and consumer review text. For the corpus of clinical text, marker words for speculation and negation were detected with results in line with previously reported interannotator agreement scores. This was also the case for speculation mar...
متن کاملNegation and Speculation Target Identification
Negation and speculation are common in natural language text. Many applications, such as biomedical text mining and clinical information extraction, seek to distinguish positive/factual objects from negative/speculative ones (i.e., to determine what is negated or speculated) in biomedical texts. This paper proposes a novel task, called negation and speculation target identification, to identify...
متن کاملA review corpus annotated for negation, speculation and their scope
This paper presents a freely available resource for research on handling negation and speculation in review texts. The SFU Review Corpus, consisting of 400 documents of movie, book, and consumer product reviews, was annotated at the token level with negative and speculative keywords and at the sentence level with their linguistic scope. We report statistics on corpus size and the consistency of...
متن کاملSpeculation and negation annotation in natural language texts: what the case of BioScope might (not) reveal
In information extraction, it is of key importance to distinguish between facts and uncertain or negated information. In other words, IE applications have to treat sentences / clauses containing uncertain or negated information differently from factual information that is why the development of hedge and negation detection systems has received much interest – e.g. the objective of the CoNLL2010...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Procesamiento del Lenguaje Natural
دوره 54 شماره
صفحات -
تاریخ انتشار 2015