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TRƯ Ờ NG Đ Ạ I H Ọ C NAM C Ầ N THƠ KHOA K Ỹ THU Ậ T – CÔNG NGH Ệ NGUY Ễ N HOÀNG Đ Ạ T 176899 NGHIÊN C Ứ U XÂY D Ự NG H Ệ TH Ố NG TR Ả L Ờ I T Ự Đ Ộ NG CHUYÊN NGÀNH PH Ậ T H Ọ C Đ Ồ ÁN TH Ự C T Ậ P Ngành Công ngh ệ Thông tin Mã s ố Ngành: 7480201 C ầ n Thơ, tháng 05 năm 2021 T RƯ Ờ NG Đ Ạ I H Ọ C NAM C Ầ N THƠ KHOA K Ỹ THU Ậ T – CÔNG NGH Ệ NGUY Ễ N HOÀNG Đ Ạ T MSSV: 176 8 9 9 NGHIÊN C Ứ U XÂY D Ự NG H Ệ TH Ố NG TR Ả L Ờ I T Ự Đ Ộ NG CHUYÊN NGÀNH PH Ậ T H Ọ C Đ Ồ ÁN TH Ự C T Ậ P Ngành Công N gh ệ Thông T in Mã s ố Ngành: 7480201 GI Ả NG VIÊN HƯ Ớ NG D Ẫ N T S NGÔ H Ồ ANH KH ÔI C ầ n Thơ, tháng 05 năm 2021 CH Ấ P THU Ậ N C Ủ A H Ộ I Đ Ồ NG Đ ồ án th ự c t ậ p “ N ghiên c ứ u xây d ự ng h ệ th ố ng tr ả l ờ i t ự đ ộ ng chuyên ngành ph ậ t h ọ c ”, do sinh viên Nguy ễ n Hoàng Đ ạ t dư ớ i s ự hư ớ ng d ẫ n c ủ a T S Ngô H ồ Anh Khôi Đ ồ án đã đư ợ c báo cáo và H ộ i đ ồ ng ch ấ m khóa lu ậ n thông qu a ngày … tháng … nă m 202 1 Ủ y viên Thư ký ---------------------------------------- ------------------------------------ GHI CH Ứ C DANH, H Ọ , TÊN GHI CH Ứ C DANH, H Ọ , TÊN Ph ả n bi ệ n 1 Ph ả n bi ệ n 2 ----- - ---------------------------------- ------------------------------------ GHI CH Ứ C DANH, H Ọ , TÊN GHI CH Ứ C DANH, H Ọ , TÊN Cán b ộ hư ớ ng d ẫ n Ch ủ t ị ch h ộ i đ ồ ng ----- - ---------------------------------- ------------------------------------ -- GHI CH Ứ C DANH, H Ọ , TÊN GHI CH Ứ C DANH, H Ọ , TÊN i L Ờ I C Ả M ƠN Tôi xin chân th ành g ử i l ờ i c ả m ơn đ ế n TS Ngô H ồ Anh Khôi - Gi ả ng viên Trư ờ ng Đ ạ i h ọ c Nam C ầ n Thơ đã nhi ệ t tình hư ớ ng d ẫ n trong su ố t th ờ i gia n làm đ ề tài th ự c t ậ p t ố t nghi ệ p Th ầ y là ngư ờ i đã t ạ o ra r ấ t nhi ề u đi ề u ki ệ n thu ậ n l ợ i và cho em nh ữ ng l ờ i khuyên quý báu nh ằ m gi úp chúng em hoàn thành t ố t đ ề tài th ự c t ậ p t ố t nghi ệ p này Xin g ử i l ờ i c ả m ơn chân thành đ ế n th ầ y cô giáo trong Trư ờ ng Đ ạ i h ọ c N am C ầ n Thơ nói chung và các th ầ y cô trong B ộ môn Công ngh ệ thông tin nói riêng đã nhi ệ t tình gi ả ng d ạ y, truy ề n đ ạ t nh ữ ng ki ế n th ứ c uyên thâm và t ạ o cho em nhi ề u đi ề u ki ệ n đ ể giúp đ ỡ trong su ố t quá trình theo h ọ c t ạ i trư ờ ng nh ữ ng năm h ọ c qua, giúp em có đ ư ợ c nh ữ ng cơ s ở lý thuy ế t v ữ ng vàng đ ể có th ể th ự c hi ệ n đ ề tài ngày hôm nay L ờ i cu ố i, em xin chân thành tha thi ế t g ử i l ờ i c ả m ơn đ ế n b ạ n bè và gia đình, đã luôn quan tâm, t ạ o đi ề u ki ệ n khi em c ầ n, giúp đ ỡ , ủ ng h ộ và đ ộ ng viên em trong quá trình h ọ c t ậ p và h oàn thành đ ồ án th ự c t ậ p t ố t nghi ệ p Xin chân t hành c ả m ơn! C ầ n Thơ, ngày … tháng … năm 2021 Sinh viên th ự c hi ệ n ii L Ờ I CAM ĐOAN Tôi xin cam k ế t r ằ ng đây là m ộ t s ả n ph ẩ m hoàn toàn do quá trình h ọ c t ậ p và v ậ n d ụ ng ki ế n th ứ c đã đư ợ c h ọ c t ạ i Trư ờ ng Đ ạ i h ọ c Nam C ầ n Thơ đ ể hoàn thành s ả n ph ẩ m c ủ a riêng c ủ a mình trong khuôn kh ổ c ủ a đ ề tài V ề hình th ứ c, nh ữ ng k ế t lu ậ n đư ợ c trình bày trong đ ồ án th ự c t ậ p này là hoàn toàn trung th ự c C ầ n Thơ, ngày … tháng … năm 2021 Sinh viên th ự c hi ệ n iii NH Ậ N XÉT C Ủ A GIÁO VIÊN HƯ Ớ NG D Ẫ N ································ ································ ································ ··· ································ ································ ································ ··· ································ ································ ································ ··· ································ ································ ································ ··· ································ 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ề kinh doanh 2 1 1 6 S ả n ph ẩ m và d ị ch v ụ đang kinh doanh 3 1 2 Gi ớ i thi ệ u c hung 8 1 2 1 Đ ặ t v ấ n đ ề nghiên c ứ u 8 1 2 2 M ụ c tiêu nghiên c ứ u 8 1 2 3 Ph ạ m vi nghiên c ứ u 8 1 2 4 Ph ạ m vi đ ề tài 9 1 2 5 Hư ớ ng g ả i quy ế t 9 1 2 6 B ố c ụ c 10 CHƯƠNG 2 CƠ S Ở LÝ LU Ậ N VÀ PHƯƠNG PHÁP NGHIÊN C Ứ U 11 2 1 Các cơ s ở nghiên c ứ u 11 2 1 1 Trí tu ệ nhân t ạ o 11 vi 2 1 2 X ử lý ngôn ng ữ t ự nhiên 24 2 2 Phương pháp nghiên c ứ u 27 2 2 1 Phương pháp nghiên c ứ u lý thuy ế t 27 2 2 2 P hương pháp nghiên c ứ u th ự c nghi ệ m 27 2 2 3 Phương pháp đi ề u tra 28 2 3 Gi ớ i thi ệ u v ề gi ả i Conditional Random Field 28 2 3 1 Gi ớ i thi ệ u chung 28 2 3 2 Mô t ả 28 2 3 3 Bi ế n th ể 29 2 4 Gi ớ i thi ệ u v ề ngôn ng ữ Python 29 CHƯƠNG 3 GI Ả I THU Ậ T CRF VÀ CÁC CHI Ế N LƯ Ợ C ÁP D Ụ NG 33 3 1 Trích xu ấ t tính năng văn b ả n và tài li ệ u 33 3 1 1 Mã hóa 33 3 1 2 Ngưng t ừ 33 3 1 3 Vi ế t hoa 33 3 1 4 Ti ế ng lóng và t ừ vi ế t t ắ c 34 3 1 5 Lo ạ i b ỏ ti ế ng ồ n 34 3 1 6 S ử a chính t ả 34 3 1 7 G ố c 34 3 1 8 B ổ sung 34 3 1 9 Word2Vec 35 3 1 10 Vectơ toàn c ầ u cho bi ể u di ễ n t ừ (GloVe) 35 3 1 11 Trìn h bày t ừ ng ữ theo ng ữ c ả nh 35 3 1 12 FastText 37 3 1 13 T ầ n su ấ t k ỳ h ạ n 37 3 1 14 T ầ n su ấ t tài li ệ u ngh ị ch đ ả o thu ậ t ng ữ 37 3 2 Gi ả m kích thư ớ c 38 3 3 K ỹ thu ậ t phân lo ạ i văn b ả n 38 vii 3 3 1 Thúc đ ẩ y 39 3 3 2 Đóng bao 39 3 3 3 M ạ ng th ầ n kinh sâu 41 3 3 4 M ạ ng th ầ n kin h tái di ễ n (RNN) 41 3 3 5 M ạ ng th ầ n kinh h ợ p pháp (CNN) 42 3 3 6 M ạ ng th ầ n kinh chuy ể n đ ổ i l ặ p l ạ i (RCNN) 42 3 3 7 H ọ c sâu đa mô hình ng ẫ u nhiên (RMDL) 42 3 3 8 H ọ c sâu phân c ấ p cho văn b ả n (HDLTex) 43 3 4 Đánh giá 43 3 5 Văn b ả n và b ộ d ữ li ệ u tài li ệ u 44 3 6 Ứ ng d ụ ng phân lo ạ i văn b ả n 45 3 7 H ỗ tr ợ phân lo ạ i văn b ả n 46 CHƯƠNG 4 MÔ HÌNH H Ệ TH Ố NG 48 4 1 T ổ ng quan 48 4 1 1 Khái quát 48 4 1 2 Sơ lư ợ c l ị ch s ử phát tri ể n 48 4 1 3 Ki ế n trúc chung c ủ a h ệ th ố ng h ỏ i đáp 48 4 1 4 M ộ t s ố v ấ n đ ề quan tâm khi thi ế t k ế h ệ th ố ng h ỏ i đáp 50 4 1 5 Các yêu c ầ u c ủ a h ệ th ố ng h ỏ i đáp 50 4 2 Ti ề n x ử lý và phân lo ạ i câu h ỏ i 50 4 2 1 Ti ề n x ử lý d ữ li ệ u 50 4 2 2 Phân lo ạ i câu h ỏ i 52 4 3 Xây d ự ng mô hình h ệ th ố ng 55 4 3 1 L ự a ch ọ n mô hình và thu ậ t toán 55 4 3 2 Mô hình ki ế n trúc h ệ th ố ng 56 4 3 3 Cài đ ặ t 58 CHƯƠNG 5 K Ế T QU Ả NGHIÊN C Ứ U 59 5 1 H ệ th ố ng 59 viii 5 1 1 Thao tác v ớ i b ộ d ữ li ệ u chuyên ngành ph ậ t h ọ c 59 5 1 2 Giao di ệ n h ệ th ố ng chương trình 60 5 2 Hư ớ ng d ẫ n cài đ ặ t 62 5 3 Hư ớ ng d ẫ n s ử d ụ ng 63 5 3 1 Thêm d ữ li ệ u 63 5 3 2 Th ự c thi chương trình 64 CHƯƠNG 6 K Ế T LU Ậ N 67 TÀI LI Ệ U THAM KH Ả O 68 ix D ANH M Ụ C B Ả NG B ả ng 1 1 B ả ng ngành ngh ề kinh doanh 2 B ả ng 1 2 B ả ng s ả n ph ẩ m ph ầ n m ề m 3 B ả ng 1 3 B ả ng d ị ch v ụ 7 x D ANH M Ụ C H ÌNH Hình 3 1 Trí tu ệ nhân t ạ o 11 Hình 3 2 Cách th ứ c ho ạ t đ ộ ng c ủ a Chatbots 15 Hình 3 3 Tương tác gi ữ a ngư ờ i dùng v ớ i ELIZA 16 Hình 4 1 H ệ th ố ng tìm ki ế m thông tin IR 48 Hình 4 2 Ki ế n trúc chung h ệ th ố ng h ỏ i đáp 49 Hình 4 3 Mô hình ho ạ t đ ộ ng h ệ th ố ng 56 Hình 4 4 Giai đo ạ n phân tích câu h ỏ i 56 Hình 4 5 Ti ế n trình phân l ớ p 57 H ình 4 6 Ti ế n trình tìm ki ế m câu h ỏ i 57 Hình 4 7 Ti ế n trình tìm ki ế m câu tr ả l ờ i 57 Hình 4 8 Ti ế n trình tìm ki ế m câu h ỏ i đ ế n chuyên g ia 57 Hình 5 1 Giao di ệ n chính c ủ a chương trình dà nh cho ngư ờ i dùng 60 Hình 5 2 Giao di ệ n chính dành cho qu ả n tr ị viên 60 Hình 5 3 Menu thêm d ữ li ệ u 61 Hì nh 5 4 Giao di ệ n ch ọ n t ệ p d ữ li ệ u c ầ n thêm vào h ệ th ố ng 61 Hình 5 5 Giao di ệ n ch ọ n thư m ụ c ch ứ a các t ệ p d ữ li ệ u c ầ n thêm vào h ệ th ố ng 62 Hình 5 6 T ệ p TraLoiTuDongPhatHoc exe 62 Hình 5 7 C ử a s ổ m ớ i cài đ ặ t 62 Hình 5 8 Bi ể u tư ợ ng ch ạ y chương trình ở Desktop 63 Hình 5 9 T ệ p ch ạ y chương trình trong thư m ụ c đã cài đ ặ t 63 Hình 5 10 Menu “Thêm d ữ li ệ u” 63 Hình 5 11 Giao di ệ n ch ọ n đư ờ ng d ẫ n c ủ a t ệ p d ữ li ệ u c ầ n thêm vào 64 Hình 5 12 Giao di ệ n chính c ủ a form ngư ờ i dùng 65 Hình 5 13 Giao di ệ n sau khi th ự c thi 65 Hình 5 1 4 Giao di ệ n c ủ a nhân viên khi ngư ờ i dùng g ử i yêu c ầ u 66 Hình 5 15 Giao di ệ n ngư ờ i dùng sao khi nhân viên ph ả n h ồ i 66 xi DANH M Ụ C T Ừ VI Ế T T Ắ T TNHH Trách nhi ệ m h ữ u h ạ n CSDL Cơ s ở d ữ li ệ u NLP Natural Language Processing HOG Histogram o f Oriented Gradients OCR Optical Character Recognition
TRƯỜNG ĐẠI HỌC NAM CẦN THƠ KHOA KỸ THUẬT – CƠNG NGHỆ NGUYỄN HỒNG ĐẠT 176899 NGHIÊN CỨU XÂY DỰNG HỆ THỐNG TRẢ LỜI TỰ ĐỘNG CHUYÊN NGÀNH PHẬT HỌC ĐỒ ÁN THỰC TẬP Ngành Công nghệ Thông tin Mã số Ngành: 7480201 Cần Thơ, tháng 05 năm 2021 TRƯỜNG ĐẠI HỌC NAM CẦN THƠ KHOA KỸ THUẬT – CƠNG NGHỆ NGUYỄN HỒNG ĐẠT MSSV: 176899 NGHIÊN CỨU XÂY DỰNG HỆ THỐNG TRẢ LỜI TỰ ĐỘNG CHUYÊN NGÀNH PHẬT HỌC ĐỒ ÁN THỰC TẬP Ngành Công Nghệ Thông Tin Mã số Ngành: 7480201 GIẢNG VIÊN HƯỚNG DẪN TS NGÔ HỒ ANH KHÔI Cần Thơ, tháng 05 năm 2021 CHẤP THUẬN CỦA HỘI ĐỒNG Đồ án thực tập “Nghiên cứu xây dựng hệ thống trả lời tự động chuyên ngành phật học”, sinh viên Nguyễn Hoàng Đạt hướng dẫn TS Ngô Hồ Anh Khôi Đồ án báo cáo Hội đồng chấm khóa luận thông qua ngày… tháng… năm 2021 Ủy viên Thư ký GHI CHỨC DANH, HỌ, TÊN GHI CHỨC DANH, HỌ, TÊN Phản biện -GHI CHỨC DANH, HỌ, TÊN Cán hướng dẫn Phản biện -GHI CHỨC DANH, HỌ, TÊN Chủ tịch hội đồng GHI CHỨC DANH, HỌ, TÊN GHI CHỨC DANH, HỌ, TÊN LỜI CẢM ƠN Tôi xin chân thành gửi lời cảm ơn đến TS Ngô Hồ Anh Khôi - Giảng viên Trường Đại học Nam Cần Thơ nhiệt tình hướng dẫn suốt thời gian làm đề tài thực tập tốt nghiệp Thầy người tạo nhiều điều kiện thuận lợi cho em lời khuyên quý báu nhằm giúp chúng em hoàn thành tốt đề tài thực tập tốt nghiệp Xin gửi lời cảm ơn chân thành đến thầy cô giáo Trường Đại học Nam Cần Thơ nói chung thầy Bộ mơn Cơng nghệ thơng tin nói riêng nhiệt tình giảng dạy, truyền đạt kiến thức uyên thâm tạo cho em nhiều điều kiện để giúp đỡ suốt trình theo học trường năm học qua, giúp em có sở lý thuyết vững vàng để thực đề tài ngày hôm Lời cuối, em xin chân thành tha thiết gửi lời cảm ơn đến bạn bè gia đình, ln quan tâm, tạo điều kiện em cần, giúp đỡ, ủng hộ động viên em q trình học tập hồn thành đồ án thực tập tốt nghiệp Xin chân thành cảm ơn! Cần Thơ, ngày … tháng … năm 2021 Sinh viên thực i LỜI CAM ĐOAN Tôi xin cam kết sản phẩm hoàn toàn trình học tập vận dụng kiến thức học Trường Đại học Nam Cần Thơ để hoàn thành sản phẩm riêng khn khổ đề tài Về hình thức, kết luận trình bày đồ án thực tập hồn toàn trung thực Cần Thơ, ngày … tháng … năm 2021 Sinh viên thực ii NHẬN XÉT CỦA GIÁO VIÊN HƯỚNG DẪN ··································································································· ··································································································· ··································································································· ··································································································· ··································································································· ··································································································· 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··································································································· ··································································································· Cần Thơ, Ngày… tháng… năm 2021 Giáo viên hướng dẫn (Ký tên) TS Ngô Hồ Anh Khôi iii NHẬN XÉT CỦA GIÁO VIÊN PHẢN BIỆN ····································································································· ····································································································· ····································································································· ····································································································· ····································································································· ····································································································· 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····································································································· ····································································································· ····································································································· Cần Thơ, Ngày….tháng… năm 2021 Giáo viên phản biện (Ký tên) ThS Huỳnh Bá lộc iv MỤC LỤC LỜI CẢM ƠN i LỜI CAM ĐOAN ii NHẬN XÉT CỦA GIÁO VIÊN HƯỚNG DẪN iii NHẬN XÉT CỦA GIÁO VIÊN PHẢN BIỆN iv MỤC LỤC v DANH MỤC BẢNG ix DANH MỤC HÌNH x DANH MỤC TỪ VIẾT TẮT xi TÓM TẮT xii CHƯƠNG GIỚI THIỆU 1.1 Tổng quan quan thực tập 1.1.1 Thông tin công ty 1.1.2 Trụ sở .1 1.1.3 Người đại diện theo pháp luật: 1.1.4 Thông tin liện hệ 1.1.5 Ngành nghề kinh doanh 1.1.6 Sản phẩm dịch vụ kinh doanh 1.2 Giới thiệu chung .8 1.2.1 Đặt vấn đề nghiên cứu .8 1.2.2 Mục tiêu nghiên cứu .8 1.2.3 Phạm vi nghiên cứu .8 1.2.4 Phạm vi đề tài 1.2.5 Hướng gải 1.2.6 Bố cục 10 CHƯƠNG CƠ SỞ LÝ LUẬN VÀ PHƯƠNG PHÁP NGHIÊN CỨU 11 2.1 Các sở nghiên cứu 11 2.1.1 Trí tuệ nhân tạo .11 v 2.1.2 Xử lý ngôn ngữ tự nhiên .24 2.2 Phương pháp nghiên cứu 27 2.2.1 Phương pháp nghiên cứu lý thuyết 27 2.2.2 Phương pháp nghiên cứu thực nghiệm 27 2.2.3 Phương pháp điều tra .28 2.3 Giới thiệu giải Conditional Random Field 28 2.3.1 Giới thiệu chung 28 2.3.2 Mô tả .28 2.3.3 Biến thể 29 2.4 Giới thiệu ngôn ngữ Python 29 CHƯƠNG GIẢI THUẬT CRF VÀ CÁC CHIẾN LƯỢC ÁP DỤNG 33 3.1 Trích xuất tính văn tài liệu 33 3.1.1 Mã hóa .33 3.1.2 Ngưng từ 33 3.1.3 Viết hoa 33 3.1.4 Tiếng lóng từ viết tắc 34 3.1.5 Loại bỏ tiếng ồn .34 3.1.6 Sửa tả .34 3.1.7 Gốc 34 3.1.8 Bổ sung 34 3.1.9 Word2Vec .35 3.1.10 Vectơ toàn cầu cho biểu diễn từ (GloVe) 35 3.1.11 Trình bày từ ngữ theo ngữ cảnh 35 3.1.12 FastText .37 3.1.13 Tần suất kỳ hạn 37 3.1.14 Tần suất tài liệu nghịch đảo thuật ngữ 37 3.2 Giảm kích thước 38 3.3 Kỹ thuật phân loại văn 38 vi 3.3.1 Thúc đẩy 39 3.3.2 Đóng bao .39 3.3.3 Mạng thần kinh sâu .41 3.3.4 Mạng thần kinh tái diễn (RNN) .41 3.3.5 Mạng thần kinh hợp pháp (CNN) 42 3.3.6 Mạng thần kinh chuyển đổi lặp lại (RCNN) 42 3.3.7 Học sâu đa mơ hình ngẫu nhiên (RMDL) 42 3.3.8 Học sâu phân cấp cho văn (HDLTex) 43 3.4 Đánh giá 43 3.5 Văn liệu tài liệu .44 3.6 Ứng dụng phân loại văn .45 3.7 Hỗ trợ phân loại văn 46 CHƯƠNG MÔ HÌNH HỆ THỐNG 48 4.1 Tổng quan 48 4.1.1 Khái quát 48 4.1.2 Sơ lược lịch sử phát triển 48 4.1.3 Kiến trúc chung hệ thống hỏi đáp .48 4.1.4 Một số vấn đề quan tâm thiết kế hệ thống hỏi đáp 50 4.1.5 Các yêu cầu hệ thống hỏi đáp 50 4.2 Tiền xử lý phân loại câu hỏi 50 4.2.1 Tiền xử lý liệu 50 4.2.2 Phân loại câu hỏi 52 4.3 Xây dựng mơ hình hệ thống 55 4.3.1 Lựa chọn mơ hình thuật tốn 55 4.3.2 Mơ hình kiến trúc hệ thống 56 4.3.3 Cài đặt 58 CHƯƠNG KẾT QUẢ NGHIÊN CỨU 59 5.1 Hệ thống 59 vii 5.1.1 Thao tác với liệu chuyên ngành phật học 59 5.1.2 Giao diện hệ thống chương trình 60 5.2 Hướng dẫn cài đặt 62 5.3 Hướng dẫn sử dụng 63 5.3.1 Thêm liệu 63 5.3.2 Thực thi chương trình 64 CHƯƠNG KẾT LUẬN 67 TÀI LIỆU THAM KHẢO 68 viii DANH MỤC BẢNG Bảng 1.1 Bảng ngành nghề kinh doanh Bảng 1.2 Bảng sản phẩm phần mềm Bảng 1.3 Bảng dịch vụ .7 ix DANH MỤC HÌNH Hình 3.1 Trí tuệ nhân tạo 11 Hình 3.2 Cách thức hoạt động Chatbots 15 Hình 3.3 Tương tác người dùng với ELIZA 16 Hình 4.1 Hệ thống tìm kiếm thông tin IR 48 Hình 4.2 Kiến trúc chung hệ thống hỏi đáp .49 Hình 4.3 Mơ hình hoạt động hệ thống .56 Hình 4.4 Giai đoạn phân tích câu hỏi .56 Hình 4.5 Tiến trình phân lớp 57 Hình 4.6 Tiến trình tìm kiếm câu hỏi .57 Hình 4.7 Tiến trình tìm kiếm câu trả lời 57 Hình 4.8 Tiến trình tìm kiếm câu hỏi đến chuyên gia 57 Hình 5.1 Giao diện chương trình dành cho người dùng 60 Hình 5.2 Giao diện dành cho quản trị viên 60 Hình 5.3 Menu thêm liệu 61 Hình 5.4 Giao diện chọn tệp liệu cần thêm vào hệ thống 61 Hình 5.5 Giao diện chọn thư mục chứa tệp liệu cần thêm vào hệ thống62 Hình 5.6 Tệp TraLoiTuDongPhatHoc.exe .62 Hình 5.7 Cửa sổ cài đặt .62 Hình 5.8 Biểu tượng chạy chương trình Desktop 63 Hình 5.9 Tệp chạy chương trình thư mục cài đặt .63 Hình 5.10 Menu “Thêm liệu” 63 Hình 5.11 Giao diện chọn đường dẫn tệp liệu cần thêm vào .64 Hình 5.12 Giao diện form người dùng 65 Hình 5.13 Giao diện sau thực thi 65 Hình 5.14 Giao diện nhân viên người dùng gửi yêu cầu .66 Hình 5.15 Giao diện người dùng nhân viên phản hồi 66 x DANH MỤC TỪ VIẾT TẮT TNHH Trách nhiệm hữu hạn CSDL Cơ sở liệu NLP Natural Language Processing HOG Histogram of Oriented Gradients OCR Optical Character Recognition xi