A feature-based opinion mining model on product reviews in Vietnamese = Mô hình khai phá quan điểm dựa trên đặc trưng các đánh giá sản phẩm trong tiếng Việt. Luận văn ThS. Công nghệ thông tin

A feature-based opinion mining model on product reviews in Vietnamese = Mô hình khai phá quan điểm dựa trên đặc trưng các đánh giá sản phẩm trong tiếng Việt. Luận văn ThS. Công nghệ thông tin

40 tr. + CD-ROM
Luận văn ThS. Khoa học máy tính — Trường Đại học Công nghệ. Đại học Quốc gia Hà Nội, 2012
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A hybrid approach to finding phenotype candidates in genetic text = một hướng tiếp cận lai để nhận dạng các ứng viên kiểu hình trong văn bản sinh học. Luận văn ThS. Công nghệ thông tin

A hybrid approach to finding phenotype candidates in genetic text = một hướng tiếp cận lai để nhận dạng các ứng viên kiểu hình trong văn bản sinh học. Luận văn ThS. Công nghệ thông tin

48 tr. + CD-ROM
Luận văn ThS. Khoa học máy tính — Trường Đại học Công nghệ. Đại học Quốc gia Hà Nội, 2012
Named entity recognition (NER) has been extensively studied for the names of genes and gene products but there are few proposed solutions for phenotypes. Phe-notype terms are expected to play a key role in inferring gene function in complex heritable diseases but are intrinsically difficult to analyse due to their complex se-mantics and scale. In contrast to previous approaches we evaluate state-of-the-art techniques involving the fusion of machine learning on a rich feature set with evi-dence from extant domain knowledge-sources. The techniques are validated on two gold standard collections including a novel annotated collection of 112 abstracts de-rived from a systematic search of the Online Mendelian Inheritance of Man database for auto-immune diseases. Encouragingly the hybrid model outperforms a HMM, a CRF and a pure knowledge-based method to achieve an F1 of 75.37 for BF and micro average F1 of 84.01 for the whole system
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A maximum likelihood method for detecting bad samples from Illumina BeadChips data

A maximum likelihood method for detecting bad samples from Illumina BeadChips data

37 p. + CD-ROM
M.A Thesis. Computer Science — University of Engineering and Technology. Vietnam National University, Hanoi, 2012
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A Method and Tool Support for Automated Data Flow Testing of Java Programs

A Method and Tool Support for Automated Data Flow Testing of Java Programs

45 p. + CD-ROM
M.A Thesis. Computer Science — University of Engineering and Technology. Vietnam National University, Hanoi, 2014
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A Push-pull based Application Multicast Layer for P2P live video streaming= M.A. Thesis Computer science

A Push-pull based Application Multicast Layer for P2P live video streaming= M.A. Thesis Computer science

45 p. + CD-ROM
M.A. Thesis. Computer science — University of Engineering and technology. Vietnam National University, Hanoi, 2011
With the rapid growth of multimedia applications and the Internet, streaming video over the Internet is becoming more and more attractive to users especially live video streaming. Many application-layer multicast pro-tocols have been proposed recently for this demand and each method has different advantages. However, these current methods do not solve effectively peer to peer (P2P) live video streaming’s problems. These problems are the randomly churn of nodes and long buffering time since the variance between the arrival times of data of different sub-streams is large. They also do not address the problem of free-riding nodes. This thesis presents our low-delay push-pull based application layer mul-ticast for live video streaming on P2P networks. The main goal of ourwork is to optimize content delivery on P2P networks to guarantee the time constraints of live video streaming. We achieve this goal by constructing multiple balanced sub-trees for pushing data and optimizing pulling connections between nodes in different sub-trees to reduce the time gap between arrival times of pushing data and pulling data. As a result, our mechanism can reduce buffering time at each node. Our mechanism also includes atit-for-tat method to promote node contribution. In order to evaluate our method’s performance, we also build a simulation program in SMPL scheduler. We also compare our method’s performance with other methods. The simulation result demonstrated the effectiveness of our method
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A Software Approach for Lower Power Consumption

A Software Approach for Lower Power Consumption

56 p. + CD-ROM + Tóm tắt
Luận văn ThS. Khoa học máy tính — Trường Đại học Công nghệ. Đại học Quốc gia Hà Nội, 2014

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A Vietnamese Text-based Conversational Agent

A Vietnamese Text-based Conversational Agent

46 p + CD-ROM
Luận văn ThS. Khoa học máy tính — Trường Đại học Công nghệ. Đại học Quốc gia Hà Nội, 2011
The first step that a question answering system must perform is to transform an input question into an intermediate representation. Most published works so far use rule-based approaches to realize this transformation in question answering systems. Nevertheless, in existing rule-based approaches, manually creating the rules is error-prone and expensive in time and effort. In this thesis, we focus on introducing a rule-based approach that offers an intuitive way to create compact rules for extracting intermediate representation of input questions. Experimental results are promising where our system achieves reasonable performance and demonstrate that it is straightforward to adapt to new domains and languages. More importantly, this thesis introduces a Vietnamese text-based conversational agent architecture on specific knowledge domain which is integrated in a question answering system. When the question answering system fails to provide answers to user input, our conversational agent can step in to interact with users to provide answers to users. Experimental results are promising where our Vietnamese text-based conversational agent achieves positive feedback in a study conducted in the university academic regulation domain
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An eficient method for automated control flow testing of programs

An eficient method for automated control flow testing of programs

49 p. + CD-ROM
M.A Thesis. Computer Science — University of Engineering and Technology. Vietnam National University, Hanoi, 2014
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An Improved Term Weighting Scheme for Text Categorization

An Improved Term Weighting Scheme for Text Categorization

52 p. + CD-ROM
M.A Thesis. Computer Science — University of Engineering and Technology. Vietnam National University, Hanoi, 2014
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