Adaptation of dynamically generated content

当前该领域的大多数研究方向的重点是基于服务器/单客户端关系，即客户端向服务器请求媒体，提供其上下文元素，媒体被处理并呈现给客户端。当这种关系不存在时，这种安排避免了某些考虑，例如在基于服务器/多客户端的系统中（例如虚拟环境），其中每个客户端都与其他客户端交互，服务器仅作为过滤和分发平台；或者用于客户端/客户端系统（例如视频会议），其中两个客户端直接相互交互。在这两种情况下，将媒体存储在数据库或文件存储库中的概念，以及对媒体的某种标记描述，都不再可能——本质上，虽然可能存在存储在服务器甚至客户端的某些元素，但媒体要么是动态生成的（例如视频会议），要么是作为混合的一部分（例如虚拟环境）。

The focus of most current research directions in this area is based on a server/single-client relationship, whereby a client makes a request to a server for media, provides its contextual elements, and that media is processed and presented to the client. This arrangement avoids certain considerations when this relationship is not present, for example in server/multiple-client based systems (e.g. virtual environments) whereby each client is interacting with other clients, and the server is acting merely as a filtering and distribution platform; or for a client/client system (e.g. video conferencing) where two clients are interacting with each other directly. In both cases the concept of storing media in a database or file store, along with some kind of tagged description for the media, is no longer possible - and in essence while there might be certain elements stored on the server or even at the client, the media is either being generated dynamically (e.g. video conferencing) or as part of a mix (e.g. a virtual environment).