{"id":943,"date":"2020-02-19T11:52:20","date_gmt":"2020-02-19T11:52:20","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=943"},"modified":"2020-02-19T11:52:20","modified_gmt":"2020-02-19T11:52:20","slug":"nlp-and-lsi-for-text-analysis","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/artificial-intelligence\/nlp-and-lsi-for-text-analysis\/","title":{"rendered":"X\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean (NLP) v\u00e0 l\u1eadp ch\u1ec9 m\u1ee5c ng\u1eef ngh\u0129a ti\u1ec1m \u1ea9n (LSI) trong ph\u00e2n t\u00edch v\u0103n b\u1ea3n"},"content":{"rendered":"<h2 class=\"wp-block-heading\">X\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean (NLP) v\u00e0 l\u1eadp ch\u1ec9 m\u1ee5c ng\u1eef ngh\u0129a ti\u1ec1m \u1ea9n (LSI) trong ph\u00e2n t\u00edch v\u0103n b\u1ea3n<\/h2>\n\n<p>NLP v\u00e0 LSI l\u00e0 c\u00e1c k\u1ef9 thu\u1eadt m\u1ea1nh m\u1ebd gi\u00fap m\u00e1y t\u00ednh hi\u1ec3u v\u00e0 x\u1eed l\u00fd ng\u00f4n ng\u1eef c\u1ee7a con ng\u01b0\u1eddi. NLP s\u1eed d\u1ee5ng h\u1ecdc m\u00e1y v\u00e0 ph\u00e2n t\u00edch ng\u00f4n ng\u1eef \u0111\u1ec3 tr\u00edch xu\u1ea5t \u00fd ngh\u0129a t\u1eeb v\u0103n b\u1ea3n, trong khi LSI gi\u00fap x\u00e1c \u0111\u1ecbnh c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 khu\u00f4n m\u1eabu \u1ea9n trong c\u00e1c t\u00e0i li\u1ec7u.<\/p>\n\n<h3 class=\"wp-block-heading\">NLP: M\u1edf kh\u00f3a \u00fd ngh\u0129a c\u1ee7a v\u0103n b\u1ea3n<\/h3>\n\n<p>NLP cho ph\u00e9p m\u00e1y t\u00ednh hi\u1ec3u ng\u00f4n ng\u1eef c\u1ee7a con ng\u01b0\u1eddi gi\u1ed1ng nh\u01b0 con ng\u01b0\u1eddi. B\u1eb1ng c\u00e1ch chia nh\u1ecf v\u0103n b\u1ea3n th\u00e0nh c\u00e1c th\u00e0nh ph\u1ea7n c\u1ee7a n\u00f3, c\u00e1c thu\u1eadt to\u00e1n NLP c\u00f3 th\u1ec3 ph\u00e2n t\u00edch c\u00fa ph\u00e1p, ng\u1eef ph\u00e1p v\u00e0 ng\u1eef ngh\u0129a. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p ch\u00fang tr\u00edch xu\u1ea5t th\u00f4ng tin ch\u00ednh, x\u00e1c \u0111\u1ecbnh t\u00ecnh c\u1ea3m v\u00e0 th\u1eadm ch\u00ed t\u1ea1o ra v\u0103n b\u1ea3n gi\u1ed1ng nh\u01b0 c\u1ee7a con ng\u01b0\u1eddi.<\/p>\n\n<p>NLP \u0111\u01b0\u1ee3c \u1ee9ng d\u1ee5ng trong nhi\u1ec1u l\u0129nh v\u1ef1c kh\u00e1c nhau:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Ph\u00e2n lo\u1ea1i t\u00e0i li\u1ec7u:<\/strong> Ph\u00e2n lo\u1ea1i t\u00e0i li\u1ec7u d\u1ef1a tr\u00ean n\u1ed9i dung c\u1ee7a ch\u00fang<\/li>\n<li><strong>Ph\u00e2n t\u00edch \u0111\u1ec1 t\u00e0i:<\/strong> X\u00e1c \u0111\u1ecbnh c\u00e1c ch\u1ee7 \u0111\u1ec1 ch\u00ednh trong m\u1ed9t t\u1eadp h\u1ee3p c\u00e1c t\u00e0i li\u1ec7u<\/li>\n<li><strong>Nh\u1eadn d\u1ea1ng gi\u1ecdng n\u00f3i:<\/strong> Chuy\u1ec3n l\u1eddi n\u00f3i th\u00e0nh v\u0103n b\u1ea3n<\/li>\n<li><strong>D\u1ecbch m\u00e1y:<\/strong> Chuy\u1ec3n \u0111\u1ed5i v\u0103n b\u1ea3n t\u1eeb ng\u00f4n ng\u1eef n\u00e0y sang ng\u00f4n ng\u1eef kh\u00e1c<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">LSI: Kh\u00e1m ph\u00e1 c\u00e1c m\u1ed1i quan h\u1ec7 \u1ea9n<\/h3>\n\n<p>LSI b\u1ed5 sung cho NLP b\u1eb1ng c\u00e1ch kh\u00e1m ph\u00e1 c\u00e1c m\u1ed1i quan h\u1ec7 v\u00e0 khu\u00f4n m\u1eabu \u1ea9n trong v\u0103n b\u1ea3n. N\u00f3 t\u1ea1o ra m\u1ed9t bi\u1ec3u di\u1ec5n to\u00e1n h\u1ecdc c\u1ee7a c\u00e1c t\u00e0i li\u1ec7u, n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c s\u1ef1 t\u01b0\u01a1ng \u0111\u1ed3ng v\u1ec1 m\u1eb7t ng\u1eef ngh\u0129a c\u1ee7a ch\u00fang. \u0110i\u1ec1u n\u00e0y cho ph\u00e9p LSI:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>C\u1ea3i thi\u1ec7n k\u1ebft qu\u1ea3 t\u00ecm ki\u1ebfm:<\/strong> X\u00e1c \u0111\u1ecbnh c\u00e1c t\u00e0i li\u1ec7u c\u00f3 li\u00ean quan ngay c\u1ea3 khi ch\u00fang kh\u00f4ng ch\u1ee9a c\u00e1c thu\u1eadt ng\u1eef t\u00ecm ki\u1ebfm ch\u00ednh x\u00e1c<\/li>\n<li><strong>Ph\u00e1t hi\u1ec7n \u0111\u1ea1o v\u0103n:<\/strong> X\u00e1c \u0111\u1ecbnh c\u00e1c t\u00e0i li\u1ec7u c\u00f3 n\u1ed9i dung t\u01b0\u01a1ng t\u1ef1<\/li>\n<li><strong>Tr\u00edch xu\u1ea5t c\u00e1c kh\u00e1i ni\u1ec7m ch\u00ednh:<\/strong> R\u00fat g\u1ecdn n\u1ed9i dung c\u1ed1t l\u00f5i c\u1ee7a t\u00e0i li\u1ec7u th\u00e0nh c\u00e1c th\u00f4ng tin c\u00f3 th\u1ec3 h\u00e0nh \u0111\u1ed9ng \u0111\u01b0\u1ee3c<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">NLP v\u00e0 LSI trong th\u1ef1c t\u1ebf<\/h3>\n\n<p>NLP v\u00e0 LSI th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng k\u1ebft h\u1ee3p v\u1edbi nhau \u0111\u1ec3 n\u00e2ng cao kh\u1ea3 n\u0103ng ph\u00e2n t\u00edch v\u0103n b\u1ea3n. V\u00ed d\u1ee5:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>Ph\u00e2n t\u00edch t\u00ecnh c\u1ea3m:<\/strong> NLP c\u00f3 th\u1ec3 tr\u00edch xu\u1ea5t t\u00ecnh c\u1ea3m t\u1eeb v\u0103n b\u1ea3n, trong khi LSI c\u00f3 th\u1ec3 nh\u00f3m c\u00e1c t\u00ecnh c\u1ea3m t\u01b0\u01a1ng t\u1ef1 l\u1ea1i v\u1edbi nhau<\/li>\n<li><strong>T\u00f3m t\u1eaft t\u00e0i li\u1ec7u:<\/strong> NLP c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh c\u00e1c c\u00e2u ch\u00ednh, trong khi LSI c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng b\u1ea3n t\u00f3m t\u1eaft n\u1eafm b\u1eaft \u0111\u01b0\u1ee3c \u00fd ngh\u0129a t\u1ed5ng th\u1ec3<\/li>\n<li><strong>Ph\u00e2n lo\u1ea1i v\u0103n b\u1ea3n:<\/strong> NLP c\u00f3 th\u1ec3 ph\u00e2n t\u00edch n\u1ed9i dung v\u0103n b\u1ea3n, trong khi LSI c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh danh m\u1ee5c c\u00f3 li\u00ean quan nh\u1ea5t<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">C\u00e1c bi\u1ec7n ph\u00e1p t\u1ed1i \u01b0u cho NLP v\u00e0 LSI<\/h3>\n\n<p>\u0110\u1ec3 t\u1ed1i \u01b0u h\u00f3a hi\u1ec7u su\u1ea5t c\u1ee7a NLP v\u00e0 LSI:<\/p>\n\n<ul class=\"wp-block-list\">\n<li><strong>S\u1eed d\u1ee5ng d\u1eef li\u1ec7u ch\u1ea5t l\u01b0\u1ee3ng cao:<\/strong> \u0110\u00e0o t\u1ea1o c\u00e1c m\u00f4 h\u00ecnh NLP v\u1edbi c\u00e1c b\u1ed9 d\u1eef li\u1ec7u l\u1edbn v\u00e0 \u0111a d\u1ea1ng<\/li>\n<li><strong>Ch\u1ecdn thu\u1eadt to\u00e1n ph\u00f9 h\u1ee3p:<\/strong> Ch\u1ecdn c\u00e1c thu\u1eadt to\u00e1n NLP v\u00e0 LSI ph\u00f9 h\u1ee3p v\u1edbi tr\u01b0\u1eddng h\u1ee3p s\u1eed d\u1ee5ng c\u1ee5 th\u1ec3 c\u1ee7a b\u1ea1n<\/li>\n<li><strong>\u0110i\u1ec1u ch\u1ec9nh th\u00f4ng s\u1ed1 c\u1ea9n th\u1eadn:<\/strong> \u0110i\u1ec1u ch\u1ec9nh c\u00e1c th\u00f4ng s\u1ed1 thu\u1eadt to\u00e1n \u0111\u1ec3 \u0111\u1ea1t \u0111\u01b0\u1ee3c \u0111\u1ed9 ch\u00ednh x\u00e1c t\u1ed1i \u01b0u<\/li>\n<li><strong>\u0110\u00e1nh gi\u00e1 th\u01b0\u1eddng xuy\u00ean:<\/strong> Theo d\u00f5i hi\u1ec7u su\u1ea5t c\u1ee7a c\u00e1c m\u00f4 h\u00ecnh NLP v\u00e0 LSI c\u1ee7a b\u1ea1n \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o c\u1ea3i ti\u1ebfn li\u00ean t\u1ee5c<\/li>\n<\/ul>\n\n<h3 class=\"wp-block-heading\">K\u1ebft lu\u1eadn<\/h3>\n\n<p>NLP v\u00e0 LSI l\u00e0 c\u00e1c k\u1ef9 thu\u1eadt thi\u1ebft y\u1ebfu \u0111\u1ec3 m\u1edf kh\u00f3a s\u1ee9c m\u1ea1nh c\u1ee7a d\u1eef li\u1ec7u v\u0103n b\u1ea3n. B\u1eb1ng c\u00e1ch trao quy\u1ec1n cho m\u00e1y t\u00ednh \u0111\u1ec3 hi\u1ec3u v\u00e0 x\u1eed l\u00fd ng\u00f4n ng\u1eef c\u1ee7a con ng\u01b0\u1eddi, c\u00e1c c\u00f4ng ngh\u1ec7 n\u00e0y \u0111ang c\u00e1ch m\u1ea1ng h\u00f3a c\u00e1c l\u0129nh v\u1ef1c nh\u01b0 t\u00ecm ki\u1ebfm, ph\u00e2n t\u00edch t\u00e0i li\u1ec7u v\u00e0 h\u1ecdc m\u00e1y. Khi NLP v\u00e0 LSI ti\u1ebfp t\u1ee5c ph\u00e1t tri\u1ec3n, ch\u00fang ta c\u00f3 th\u1ec3 mong \u0111\u1ee3i nhi\u1ec1u \u1ee9ng d\u1ee5ng mang t\u00ednh bi\u1ebfn \u0111\u1ed5i h\u01a1n n\u1eefa trong nh\u1eefng n\u0103m t\u1edbi.<\/p>","protected":false},"excerpt":{"rendered":"<p>X\u1eed l\u00fd ng\u00f4n ng\u1eef t\u1ef1 nhi\u00ean (NLP) v\u00e0 l\u1eadp ch\u1ec9 m\u1ee5c ng\u1eef ngh\u0129a ti\u1ec1m \u1ea9n (LSI) trong ph\u00e2n t\u00edch v\u0103n b\u1ea3n NLP v\u00e0 LSI l\u00e0 c\u00e1c k\u1ef9 thu\u1eadt m\u1ea1nh m\u1ebd&hellip;<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2224],"tags":[2221,2220,2223,2222,1259],"class_list":["post-943","post","type-post","status-publish","format-standard","hentry","category-artificial-intelligence","tag-lsi","tag-nlp","tag-latent-semantic-indexing","tag-text-analysis","tag-natural-language-processing"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=943"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/943\/revisions"}],"predecessor-version":[{"id":944,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/943\/revisions\/944"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}