Method and system for programming virtual robots using a template
Disclosed is a method for processing input entered by a user and providing at least one response maintained by an administrator in a system for autonomously processing requests. A template is provided to the administrator, wherein the template includes at least one field to elicit specific information from the administrator. The information is received from the administrator into the template. The information is saved for use in providing the at least one response in reply to a request from a user. An apparatus for performing this method is also disclosed.
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1. Field of the Invention
The present invention is directed to a method and system for the use of virtual robots (“Bots”) to autonomously process requests. More particularly, this invention is directed to a method and system for the mass customization of Bots by administrators having no specialized knowledge or experience in the art.
2. Description of Related Art
For the purposes of the present invention, data maintained in a database, file, or other source of structured and/or tagged data is referred to herein as “structured data”. So called “virtual robots” (or “Bots”) are software programs that interact and/or communicate with users (human, machine, or otherwise) and take actions or make responses according to input from these users. “Bot” refers to any program which interacts with a user in some fashion and should not be assumed to refer only to physically embodied robots. “Input” refers to any description of a situation the Bot may encounter; although the most common inputs are textual inputs from users, inputs can be actions taken by users, external circumstances, or even events internal to the Bot such as an internal alarm clock.
A common use of a Bot is as an interface to a web site where the administrator of that site (the “administrator”) has programmed the Bot to answer simple inquiries (the “input”) that are typically asked by visitors to the site. The Bot finds a pattern, consisting of text and/or code, that best matches the input, and then takes the action that it is programmed to take in connection with that pattern (the “response”). The response can take the form of a text string that contains the information sought by the user (which text string can be transmitted to the user in text form, “read” by a text-to-speech engine, played back to the user as a wave file, or otherwise transmitted to the user in a comprehensible form) or the response can be any other action of which a program is capable, for example, opening a web page, turning a circuit on or off, initiating or ending a program, and the like.
It is desirable that the Bot be scripted to anticipate the inputs that it is likely to receive and the situations that it is likely to encounter. Because users may ask questions or otherwise create inputs in a wide variety of different ways, a large variety of patterns are required to comprehensively anticipate the variety of inputs that the Bot may receive. This complexity is greatly increased by the number of different ways a user may create any particular input. For example, if a user wants to know the name of the president of the Administrator's company, the user may input a text string reading “Who is your President?”, “What's the President's name?”, or even “Who's the top dog at AdminCo.?”
Historically, Bots have been scripted manually, by having one or more human scripters write patterns for the Bot and tie those patterns to appropriate responses. Such human scripting, although usually necessary, has a number of drawbacks. First, scripting is time-consuming. A typical Bot may contain thousands of possible patterns and responses, all of which need to be scripted. Second, the list of patterns and responses is usually incomplete. It is almost impossible for the scripters to comprehensively cover all possible patterns for a large body of information and desired responses. Third, there are many opportunities for misspellings or other errors. The greatest part of the time, expense, and difficulty of creating a Bot, therefore, is in the process of scripting it. Additionally, as the information changes or is added to over time, the time, expense, and difficulty of maintaining the patterns and responses that refer to the information are very substantial as well.
Scripting heretofore has been done in some form of code, either complex or simple, and has always required some level of aptitude and training. Furthermore, it takes a great deal of experience to successfully anticipate the questions that may be asked in any situation, making that task unsuited for lay people or lower pay grade workers.
Thus, there is a need in the art to have a method of scripting a Bot which successfully customizes the Bot to an individual application using knowledge that can be given to the Bot by any lay person or lower-level employee.
BRIEF SUMMARY OF THE INVENTIONIt is an object of the present invention to provide a method of creating Bots according to patterns (or text strings) that are written in a very high level language that closely resembles a human natural language and are intended to anticipate the inputs that may be received from users.
It is a further object of the present invention to enable administrators with no specialized background, training, or expertise to enter information that will be incorporated into patterns and used by the Bot, thereby enabling the Bot to correctly respond to a multitude of different questions with the information the administrator provides.
The present invention meets these objectives by providing a method whereby an administrator with no special skills or knowledge can input information into a template. The information is manipulated by an editor to create a wide range of rules which are provided to an engine together with other rules of a background nature (if desired). The rules enable the engine to provide responses to a wide range of inputs without any further programming or action on the part of the administrator. In addition, the information will be saved and can be changed or edited later by the administrator.
The method according to the present invention includes inputting and saving the information, inserting the information into rules, and editing the information.
BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS
A complete understanding of the present invention will be obtained from the following description when taken in connection with the accompanying drawing figures wherein like reference characters identify like elements throughout.
The general architecture of the present invention will now be described. Referring to
The front end section 120 is generally an environment in which a user 101 interacts with a Bot connection interface 104, possibly via a user interface 102 that may be connected to the Bot connection interface 104 via a network 103. The user interface 102 can be anything capable of receiving human or machine language input, including, without limitation, a computer, a Personal Digital Assistant (PDA), a telephone, or a pager. The user interface 102 will also typically have some form of client software 110 installed to provide a text box, buttons, or other method for the entry of user 101 inputs and some method for displaying intelligible responses from the Bot. The network 103 can be any system capable of transmitting such input over any distance, including, without limitation, a local area network (LAN), the Internet, a “wifi” (wireless fidelity), cellular or other wireless data connection, a virtual private network (VPN), or simply a hard wired telephone system. The user 101 can also simply act directly upon the Bot connection interface 104. In such circumstances (as well as in circumstances such as telephony where the user input will not support client software 110), client software 110 will usually be resident in the Bot connection interface 104 to facilitate user 101 interaction. It will be appreciated that many other means of connection to the Bot processor section 140 are well known to those skilled in the art and that the present invention should not be limited to any particular aspects of the general operating environment as disclosed herein.
In a common use of Bot technology, the user 101 connects to a site where the user interface 102 includes client software 110. The advantage for the site developer is that the user 101 may have a help or information request that is easily handled via a Bot using the client software 110. It is not uncommon to find sites having a list of FAQs (Frequently Asked Questions) which serve the purpose of handling very low level user concerns and questions. However, where there are a substantial number of FAQ's, pointing and clicking through web pages becomes an inefficient method of finding the required information, as does searching with a conventional search engine. Bots provide a more efficient method of obtaining information and of handling more advanced questions or interactions with the site.
In the operating environment of this embodiment of the present invention, the Bot connection interface 104 consists of hardware, an operating system, and any application software necessary to support a Bot engine 210 and enable the Bot engine 210 to receive inputs and send responses in a chosen communications mode. Necessary application software in the Bot connection interface 104 may include an email application, an instant messaging application, an internet relay chat (IRC) application, voice recognition software, or other applications, as necessary, to support the chosen mode or modes of communication between the Bot engine 210 and the user 101. The client software 110, along with structured data 105 and script storage 106, may be resident on the Bot connection interface 104, although these may also be hosted on a remote computer and made available to the Bot engine 210 via a network 103 or other connection.
As the user 101 sends inputs, the Bot engine 210 receives the inputs, processes the inputs, and generates responses. Typically, where the user 101 is human, a two way communications dialogue occurs between the user 101 and the Bot engine 210 in that the user 101 may ask questions, make declarative statements, and perform other normal communications patterns that typify modes of human communications. For the purposes of the present invention, “communications” is intended to be a broad concept. Indeed, suitable communications may be in the form of written or spoken language, graphics, URL's, or the like that may be passed to and from a user and an automatic interface program, such as the present invention.
In turn, the Bot engine 210 accepts the inputs generated by the user 101 and generates responses by processing the inputs according to a script or scripts 310 that are stored in the script storage 106. As will be discussed in greater detail in connection with
The administration section 160 consists of an administrator 108, an administrator interface 109, and an editor 111. The administrator 108 is the human being who creates the scripts 310 that govern the behavior of the Bot engine 210. Typically, this human being accomplishes this task through the use of the administrator interface 109 that has a text box or boxes or other entry points for the input of patterns, as well as a response or responses associated with that input. The administrator interface 109 may also provide various tools to facilitate the process of inputting the patterns in an organized and efficient way. The editor 111 takes the patterns provided by the administrator 108 and associates them with the appropriate response or responses. The administrator interface 109 and the editor 111 may be created as a single unit or may be designed to reside in separate computers. It will be appreciated by those skilled in the art that the scripts 310 can be written by human administrators or by automated or partially automated script creation tools and that the present invention should not be limited to scripts written by humans or otherwise.
Although
The Bot processor section 140 will now be described.
The preprocessing of input, step 220, will now be described.
In the embodiment described herein, the preprocess input step 220 begins by taking the input in step 221 and then proceeding to remove punctuation in step 222. Removing the punctuation from a text string removes the ambiguity created by the fact that people punctuate their sentences differently and that some people forget to punctuate at all.
Next the input is spell checked at step 223 so that spelling errors can be removed, further minimizing text variation due to error or variant usage by the user 101.
By proceeding to expand contractions in step 224, the input is further standardized so that the Bot engine 210 can recognize contracted words, for example, “what's” as being identical to its constituent parts “what is”, further reducing the complexity of the inputs that the Bot engine 210 must be able to recognize.
The next step 225 standardizes case, allowing the Bot engine 210 to recognize, for example, “the”, “The”, and “THE” as being identical, and removing as a variable the scheme of capitalization that may have been employed by the user 101.
The input is then passed to lexical analysis in step 226, where processes relating to the meaning of words are performed. As an example, lexical analysis might parse or partition the input to determine those text strings that are synonymous (at least for the administrator's purposes) with other text strings, for example, “I want”, “I need”, and “Give me”. Typically these text strings would be replaced with a text or code string that stands in for them in the input, allowing a single rule 311 to recognize an input phrased in any of these different ways.
Next the input goes through semantic analysis in step 227, which is useful in identifying parts of the sentence, for example, the subject of the sentence, the object of the verb, or the referent of a pronoun. Depending upon the methodologies used, this step can be useful for pattern recognition and/or for maintaining context in a “conversation” between the user 101 and the Bot.
Finally, the input is passed through other translations in step 228, where the other translations are any other processes whereby strings are added to or substituted for portions of the input in order to add functionality to the Bot. These processes may include language translation, substitutions of machine language for natural language, or other methodologies.
Those skilled in the art will readily understand that some or all of the above exemplary processes might be included at this stage in various orders and configurations and that there are other processes of similar purpose that may be undertaken in a Bot suitable for the present invention. Similarly, some or all of these objectives may be achieved by incorporating the functionality into the rules used to recognize inputs.
The recognition of input, step 212, will now be described.
The steps of the input recognizer 320 are depicted in more detail in
The administrator 108 has the option of creating one or more statement (input) validators 410a-d involving the querying of the structured data 105 which, if true, will result in the successful recognition of the input in step 324 and the effectiveness of the rule 311, and which if false, will provide for the non-recognition of the input in step 322 by the input recognizer 320, with the result that the Bot engine 210 will continue to seek for a matching pattern in other rules 311. Each of these statement validators 410a-d is tested in turn in step 323, for so long as they continue to be valid. If any statement validator 410a-d is invalid, the input is not recognized in step 322. If all are valid, the input is recognized in step 324.
There can be any number of statement validators 410a-d that work with pattern matches 321 in the input recognizer 320 or none at all. Upon completion of pattern matches 321 and validation 323 of the statement validators 410a-d, if any, contained in the input recognizer, the input is ultimately recognized 324 or not recognized 322. If recognized 324, the process continues to the next layer of the rule 311, whether that is a response layer 340 that generates a response to be transmitted to the user or a logic layer 330 that chooses between the various responses to be used in the response layer 340.
Those skilled in the art will readily understand that the steps of the input recognizer 320 might occur in various orders (or contemporaneously with each other) and configurations and that there are other processes of similar purpose that may be undertaken in a Bot suitable for the present invention.
The generation of responses will now be described. The next step in the execution of a rule 311 following recognition of an input at step 324 by the input recognizer 320 is typically to go to a response layer 340 (
A rule 311 can also be designed to employ a logic layer 330 as shown in
The present invention is principally located in the administration section 160 of the Bot, but posts information that may ultimately be held in the script storage 106 and/or in the structured data 105 of the Bot processor.
The process of inputting information 620a-c will now be described. Referring to
Referring again to
The ability to save the information within the template at step 623 depends upon the structure and programming of the template 610 to possess such a storage capability. Storing the information as structured data 105 in step 624 involves saving the information within each of the fields 611 to a separate field or location within the structured data 105. In order to save the information by inserting information into the rules 311 at step 710, a more elaborate procedure is necessary, as is described in more detail immediately below.
Referring to
Referring to
In a preferred embodiment, each layer 330, 340 is checked across all rules 311 before moving on to the next layer 330, 340. Variations in method are possible, such as checking all layers 330, 340 in each rule 311 before moving on to the next rule 311.
Referring to
If the information has been stored as part of the template 610 itself, the information is automatically restored to the fields 611 or other points of data entry as a function of the template 610.
If the information has been stored in the structured data 105, the editor 111 follows essentially the process 910a. In this process, for each field 611 in the template 610, the editor 111 obtains instructions in step 911a which indicate where the information for the field 611 is to be found. Next, the editor 111 executes the instructions in step 912a to obtain the information. The editor 111 sends the information to the appropriate field 611 in the template 610 in step 913a. The editor 111 then determines if there are more fields 611 for which to obtain information in step 914a. If the answer is yes, the editor 311 repeats the process for each field 611 until there are no more fields 611 for which to obtain information. At this point, all of the fields 611 are filled with the appropriate information and the editor 111 is finished with the get information process.
If the information has been stored by inserting the information into the rules 311 in step 710, the process used has some variability as set in processes 910a-c. The process 910a (described above) may be used to obtain information from the rules 311. For each field in the template, the editor 111 obtains instructions in step 911a as to where to find the information. The editor 111 executes the instructions to obtain the information in step 912a from the appropriate rule 311, and then sends the information to the field 611 in step 913a.
Alternatively, the processes of 910b and 910c may be used. The first step is to obtain the rules 311 in step 921b, 921c. Next, the editor checks each rule 311 for a signifier in step 922b, 922c. If the rule 311 has a signifier, the editor 111 either executes instructions to obtain the information associated with that rule 311 in step 912b or obtains tagged information contained in that rule 311 in step 931c. In either instance, the information is then sent to the appropriate field in the template 610 in step 913b, 913c. The process is repeated until all of the rules 311 have been checked.
Once the template has been repopulated with information by the process of obtaining information 910a-c, the administrator 108 is free to use the input and save the information process 620a-c, as discussed above, thus, effectively updating the information contained in the template 610 and anywhere else that the information has been saved.
The present invention enables a person to successfully customize a Bot for an individual application where the person uses knowledge that can be given to the Bot by any lay person or lower-level employee. This results in several important advantages. Information can be inexpensively input, and fully effective rules formed, by administrators working at pay grades substantially below that of a skilled programmer. Cost is further reduced by the fact that little or no training is required to accomplish this task. Speed to completion is dramatically enhanced, as there is no actual scripting that needs to take place—it all takes place automatically upon completion. The opportunity for error is greatly reduced, and consistent effectiveness of the rules at responding to inputs is greatly enhanced, dramatically increasing overall quality. The invention also provides a way to easily and consistently create and manage a large number of similarly-tasked Bots.
It will be understood by those skilled in the art that while the foregoing description sets forth in detail preferred ordering of steps of the various processes, other ordering of the steps are contemplated by the present invention.
It will be understood by those skilled in the art that while the foregoing description sets forth in detail preferred embodiments of the present invention, modifications, additions, and changes might be made thereto without departing from the spirit and scope of the invention.
Claims
1. A method for maintaining at least one response by an administrator in a system for autonomously processing requests, comprising the steps of:
- providing a template to the administrator, wherein the template includes at least one field to elicit information from the administrator,
- receiving information from the administrator into the template, and
- making the information accessible to a rules-based program for use in providing the at least one response in reply to a request from a user.
2. The method according to claim 1, wherein the step of making the information accessible to the rules-based program saves the information as part of the template, as structured data, and/or into rules.
3. The method according to claim 2, wherein the step of saving the information into rules includes the steps of:
- retrieving rules,
- for each rule retrieved, determining whether the rule needs information,
- if the rule needs information, retrieving the information from a corresponding field in the template and inserting the information into the rule.
4. The method according to claim 3, wherein the step of determining whether the rule needs information includes the steps of:
- determining whether an input recognizer needs information,
- if the input recognizer needs information, retrieving the information from a corresponding field in the template and inserting the information into the input recognizer.
5. The method according to claim 4, wherein the step of determining whether the rule needs information includes the steps of:
- determining whether a response layer needs information, and
- if the response layer needs information, retrieving the information from a corresponding field in the template and inserting the information into the response layer.
6. The method according to claim 5, wherein the step of determining whether the rule needs information includes the steps of:
- determining whether a logic layer needs information, and
- if the logic layer needs information, retrieving the information from a corresponding field in the template and inserting the information into the logic layer.
7. The method according to claim 4, wherein the step of determining whether the input recognizer needs information, includes the step of identifying a signifier.
8. The method according to claim 5, wherein the signifier is a tag in a text string.
9. The method according to claim 5, wherein the signifier is an instruction embedded in a text string.
10. The method according to claim 5, wherein the signifier is a code.
11. The method according to claim 3, wherein the step of determining whether the rule needs information includes the steps of:
- determining whether a response layer needs information, and
- if the response layer needs information, retrieving the information from a corresponding field in the template and inserting the information into the response layer.
12. The method according to claim 11, wherein the step of determining whether the response layer needs information, includes the step of identifying a signifier in the response layer.
13. The method according to claim 12, wherein the signifier is a tag in a text string.
14. The method according to claim 12, wherein the signifier is an instruction embedded in a text string.
15. The method according to claim 12, wherein the signifier is a code.
16. The method according to claim 3, wherein the step of determining whether the rule needs information includes the steps of:
- determining whether a logic layer needs information, and
- if the logic layer needs information, retrieving the information from a corresponding field in the template and inserting the information into the logic layer.
17. The method according to claim 16, wherein the step of determining whether the logic layer needs information, includes the step of identifying a signifier in the logic layer.
18. The method according to claim 17, wherein the signifier is a tag in a text string.
19. The method according to claim 17, wherein the signifier is an instruction embedded in a text string.
20. The method according to claim 17, wherein the signifier is a code.
21. The method according to claim 3, wherein the step of retrieving rules retrieves all of the rules.
22. The method according to claim 3, wherein the step of retrieving rules retrieves all of the rules in a template information script.
23. The method according to claim 1, wherein the step of making the information accessible to the rules-based program is accomplished by receiving a manual command from a user.
24. The method according to claim 1, wherein the step of making the information accessible to the rules-based program is accomplished automatically upon the occurrence of a predefined event.
25. The method according to claim 24, wherein the predefined event is closing of the template.
26. The method according to claim 24, wherein the predefined event is passage of a predetermined amount of time.
27. The method according to claim 24, wherein the predefined event is activation of a save function by the administrator.
28. The method according to claim 1, further including the step of enabling the administrator to edit the information.
29. The method according to claim 28, wherein the step of enabling the administrator to edit the information includes the steps of:
- retrieving the information,
- posting the information in at least one appropriate field in the template,
- receiving edited information from the administrator into the template, and
- making the edited information accessible to the rules-based program for use in providing the at least one response in reply to a request from the user.
30. The method according to claim 29, wherein:
- the step of making the information accessible to the rules-based program saves the information as part of the template, and
- the step of retrieving the information includes the step of restoring the information to the at least one field.
31. The method according to claim 29, wherein:
- the step of making the information accessible to the rules-based program saves the information as structured data, and
- the step of retrieving the information includes the steps of, for at least one of the at least one field in the template: retrieving instructions indicating where the information is stored, and executing the instructions to retrieve the information.
32. The method according to claim 29, wherein:
- the step of making the information accessible to the rules-based program saves the information into rules, and
- the step of retrieving the information includes the steps of, for at least one of the at least one field in the template: retrieving instructions indicating where the information is stored, and executing the instructions to retrieve the information.
33. The method according to claim 29, wherein:
- the step of making the information accessible to the rules-based program saves the information into rules, and
- the step of retrieving the information includes the steps of, for each rule used: determining whether the rule includes a signifier, and if a signifier is included, executing instructions from the signifier to retrieve the information associated with the rule.
34. The method according to claim 29, wherein:
- the step of making the information accessible to the rules-based program saves the information into rules, and
- the step of retrieving the information includes the steps of, for each rule used: determining whether the rule includes a signifier, and if a signifier is included, retrieving the information tagged in the rule.
35. A computer based system that processes inputs entered by a user and provides at least one response that is maintained by an administrator, comprising:
- an interface configured to receive information from the administrator; and
- an engine configured to make the information accessible to a rules-based program that provides the at least one response in reply to the inputs from the user.
36. The computer based system according to claim 35, wherein the interface is a template including at least one field.
37. The computer based system according to claim 36, wherein the information is saved in the template.
38. The computer based system according to claim 35, further including structured data, wherein the information is saved in the structured data.
39. The computer based system according to claim 35, further including a set of rules, wherein the information is saved in the set of rules.
40. The computer based system according to claim 35, further including an editor adapted to access the information and enable the administrator to edit the information.
Type: Application
Filed: Nov 10, 2003
Publication Date: May 12, 2005
Applicant: Conversive, Inc. (Malibu, CA)
Inventors: Aaron McBride (Calabasas, CA), Rob Rappaport (Malibu, CA), Jeremy Romero (Calabasas, CA), Christopher Brennan (Northridge, CA), Robert Williams (Pacific Palisades, CA)
Application Number: 10/705,208