Entity Relation Extraction from Amharic Free Text using Deep  Learning

Zelalem, Bekalu

dc.contributor.author	Zelalem, Bekalu
dc.date.accessioned	2023-06-19T12:13:38Z
dc.date.available	2023-06-19T12:13:38Z
dc.date.issued	2023-03
dc.identifier.uri	http://ir.bdu.edu.et/handle/123456789/15408
dc.description.abstract	Relation extraction is a very useful task for several natural language processing applications, such as automatic summarization, knowledge graph development and question answering. An entity relation defined as a semantic interaction that holds between Named Entities. The entity relation extracting system developed for English or any other language in some specific xiii domain cannot work for other languages of the same domain. Previously, there is research conducted on entity relation extraction from Amharic language free texts for a sentence have only one relation. When we study the Amharic sentence behaviors, it has two and more entities that exist so the relation between those named entities is also triple and multiple relations it has. This research attempted to design entity relation extraction from Amharic language free text with a sentence having multiple relations. Due to the number of relation s between the named entities and the existence of triple and more relations of a sentence, to address the issues it is essential to develop a multi-label relation classification. Task-related entity indicators designed to enable a deep neural network to concentrate on the task-relevant information. By implanting entity indicators into a relation instance, the neural network is effective for encoding syntactic and semantic information about a relation instance. We conduct the experiments using logistic regression classical machine learning algorithm in addition to encoder decoder models. These are LSTM, Bi-LSTM and CNN-BiLSTM. To conduct our experiments, we have used 2,500 sentences; it carries both triple and multiple relations. In order to extract our relation data, we have used entity indicators. To propose an optimal model with best relation classification from Amharic language entities unit we consider efficiency (training time, memory usage, and accuracy score). Finally, we have proposed multi-label relation classification using BiLSTM model with an accuracy score of 0.55. The major weakness of the study is unavailability of enough dataset to conduct an extensive experiment. As a result, there is a need to prepare corpora for conducting similar research. Keywords: Named Entity, Relation Extraction, Entity Indicator Based Relation Extraction, and Deep learning approach, LSTM, BiLSTM and CNN-BiLSTM.	en_US
dc.language.iso	en_US	en_US
dc.subject	Computing	en_US
dc.title	Entity Relation Extraction from Amharic Free Text using Deep Learning	en_US
dc.type	Thesis	en_US