tailieunhanh - Collective Intelligence in Action phần 3

và xây dựng từ điển người dùng tạo ra thẻ cung cấp một cách quảng cáo đặc biệt phân loại mặt hàng, trong một thuật ngữ có liên quan cho người sử dụng. Quá trình phân loại này, thường được gọi là folksonomies, cho phép người dùng lấy thông tin bằng cách sử dụng các điều khoản mà họ đã quen thuộc với. | 60 Chapter 3 Extracting intelligence from tags Simpo PDF Merge and Split Unregistered Version - http Folksonomies and buildinế a dictionary User-generated tags provide an ad hoc way of classifying items in a terminology that s relevant to the user. This process of classification commonly known as folksonomies enables users to retrieve information using terms that they re familiar with. There are no controlled vocabularies or professionally developed taxonomies. The word folksonomy combines the words folk and taxonomy. Blogger Thomas Vander Wal is credited with coining the term. Folksonomies allow users to find other users with similar interests. A user can reach new content by visiting other similar users and seeing what other content is available. Developing controlled taxonomies as compared to folksonomies can be expensive both in terms of time spent by the user using the rigid taxonomy and in terms of the development costs to maintain it. Through the process of user tagging users create their own classifications. This gives useful information about the user and the items being tagged. The tags associated with your application define the set of terms that can be used to describe the user and the items. This in essence is the vocabulary for your application. Folksonomies are built from user-generated tags. Automated algorithms have a difficult time creating multi-term tags. When a dictionary of tags is available for your application automated algorithms can use this dictionary to extract multi-term tags. Well-developed ontologies such as in the life sciences along with folksonomies are two of the ways to generate a dictionary of tags in an application. Now that we ve looked at how tags can be used in your application let s take a more detailed look at user tagging. Extracting intelligence from user tagging an example In this section we illustrate the process of extracting intelligence from the process of user tagging. Based on how users