Show pageOld revisionsBacklinksExport to PDFBack to top This page is read only. You can view the source, but not change it. Ask your administrator if you think this is wrong. ====== Fundamentals ====== Main concepts of the AIML language are: **AIML Tags** Following are the important tags which are commonly used in AIML documents. * <aiml> : Defines the beginning and end of a AIML document. * <category> : Defines the unit of knowledge in Alicebot's knowledge base. * <pattern> : Defines the pattern to match what a user may input to an Alicebot. * <template> : Defines the response of an Alicebot to user's input. Following are some of the other widely used aiml tags. We'll be discussing each tag in details in coming chapters. * <star> : Used to match wild card * character(s) in the <pattern> Tag. * <srai> : Multipurpose tag, used to call/match the other categories. * <random> : Used <random> to get random responses. * <li> : Used to represent multiple responses. * <set> : Used to set value in an AIML variable. * <get> : Used to get value stored in an AIML variable. * <that> : Used in AIML to respond based on the context. * <topic> : Used in AIML to store a context so that later conversation can be done based on that context. * <think> : Used in AIML to store a variable without notifying the user. * <condition> : Similar to switch statements in programming language. It helps ALICE to respond to matching input. ** AIML Vocabulary ** AIML vocabulary uses words, space and two special characters * and _ as wild cards. AIML interpreter gives preference to pattern having _ than pattern having *. AIML tags are XML compliant and patterns are case-insensitive. Example <code> <aiml version = "1.0.1" encoding = "UTF-8"?> <category> <pattern> HELLO ALICE </pattern> <template> Hello User! </template> </category> </aiml> </code> Following are the important points to be considered − * <aiml> tag signifies start of the AIML document. * <category> tag defines the knowledge unit. * <pattern> tag defines the pattern user is going to type. * <template> tag defines the response to the user if user types Hello Alice. Result : <code> User: Hello Alice Bot: Hello User </code> developer_guide/aiml_fundamentals/start.txt Last modified: 2016/11/07 13:02by borja