Some related topic about QA
来源:互联网 发布:多功能乐器软件 编辑:程序博客网 时间:2024/05/16 07:43
In 2002 a group of researchers wrote a roadmap of research in question answering (see external links). The following issues were identified.
;Question classes: Different types of questions require the use of different strategies to find the answer. Question classes are arranged hierarchically in taxonomies.
;Question processing: The same information request can be expressed in various ways - some interrogative, some assertive. A semantic model of question understanding and processing is needed, one that would recognize equivalent questions, regardless of the speech act or of the words, syntactic inter-relations or idiomatic forms. This model would enable the translation of a complex question into a series of simpler questions, would identify ambiguities and treat them in context or by interactive clarification.
;Context and Q&A: Questions are usually asked within a context and answers are provided within that specific context. The context can be used to clarify a question, resolve ambiguities or keep track of an investigation performed through a series of questions.
;Data sources for Q&A: Before a question can be answered, it must be known what knowledge sources are available. If the answer to a question is not present in the data sources, not matter how well we perform question processing, retrieval and extraction of the answer, we shall not obtain a correct result.
;Answer extraction: Answer extraction depends on the complexity of the question, on the answer type provided by question processing, on the actual data where the answer is searched, on the search method and on the question focus and context. Given that answer processing depends on such a large number of factors, research for answer processing should be tackled with a lot of care and given special importance.
;Answer formulation: The result of a Q&A system should be presented in a way as natural as possible. In some cases, simple extraction is sufficient. For example, when the question classification indicates that the answer type is a name (of a person, organization, shop or disease, etc), a quantity (monetary value, length, size, distance, etc) or a date (e.g. the answer to the question "On what day did Christmas fall in 1989?") the extraction of a single datum is sufficient. For other cases, the presentation of the answer may require the use of fusion techniques that combine the partial answers from multiple documents.
;Real time question answering: There is need for developing Q&A systems that are capable of extracting answers from large data sets in several seconds, regardless of the complexity of the question, the size and multitude of the data sources or the ambiguity of the question.
;Multi-lingual question answering: The ability of developing Q&A systems for other languages than English is very important. Moreover, the ability of finding answers in texts written in languages other than English, when an English question is asked is very important.
;Interactive Q&A: It is often the case that the information need is not well captured by a Q&A system, as the question processing part may fail to classify properly the question or the information needed for extracting and generating the answer is not easily retrieved. In such cases, the questioner might want not only to reformulate the question, but (s)he might want to have a dialogue with the system.
;Advanced reasoning for Q&A: More sophisticated questioners expect answers which are outside the scope of written texts or structured databases. To upgrade a Q&A system with such capabilities, we need to integrate reasoning components operating on a variety of knowledge bases, encoding world knowledge and common-sense reasoning mechanisms as well as knowledge specific to a variety of domains.
;User profiling for Q&A: The user profile captures data about the questioner, comprising context data, domain of interest, reasoning schemes frequently used by the questioner, common ground established within different dialogues between the system and the user etc. The profile may be represented as a predefined template, where each template slot represents a different profile feature. Profile templates may be nested one within another.
- Some related topic about QA
- PM Related Topic 1
- PM Related Topic 2
- PM Related Topic 3
- PM Related Topic 4
- PM Related Topic 5
- PMP Related Topic 6
- about DEXPREOPT_BOOT_JARS related
- About software QA
- some commands related to "find"
- some non-tech related question
- Beginning QA --- Basics and Related Concepts
- Some words about ICE...
- About some techno-words
- some links about UML
- Some tutorial about geometry
- Some videos about Avalon
- Some Tips about Interbase
- uva 714 Copying Books 最大值最小化 附测试数据
- socket案例
- Ubuntu下Eclipse开发Android经常崩溃的解决方法
- 关于金蝶K3系统(工业)供应链部分,使用前需要基本了解的一些信息
- FindRowRegex Property
- Some related topic about QA
- 查看项目最实用的几个快捷键
- 安卓Bitmap图像格式转为BGRA
- Cocos2dx 学习笔记26 CCNotificationCenter的使用
- iOS8 下定位失败问题
- android添加快捷方式并且图标上添加数字
- vc 热键、组合键的用法 MFC c++ hotkey WM_HOTKEY
- RMAN-06025: no backup of log thread 1 seq 17 lowscn 1101318 found to restore
- 用VC进行COM编程所必须掌握的理论知识