...上搜索的策略: 第一种策略是通过 URL 进行单位搜索以便根据单位的名称找到相关信息, 第二种策略是通 过主题树(subject tree) 进行主题搜索以便根据主题的类别找到相关信息, 第三种策略是通 过搜索引擎进行单词搜索以便根据具体的关键词或短语找到相关信息...
基于36个网页-相关网页
主题索引(Subject Tree) 提供人文社会科学以及科学工程等两大主题,以下涵盖数十种各类学科主题, 由浅入深如树枝状将各类学科细分,并显示各学科所提供...
基于20个网页-相关网页
The main contents of this paper are as follows:1. Proposes a user interest model based on subject tree.
本论文的主要工作有:1.提出了基于主题树的用户兴趣模型,并详细介绍了模型的表示以及更新机制。
参考来源 - 基于用户兴趣模型的服务发现方法研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Close shot of subject tree stone, mountains gradually into the clouds, the glaze of white, filled the mountain stream gurgling vision water vapour and clouds are dense.
画中主体近景树石,远山渐入云中,山中弥漫着出岫的白云,溪流淙淙,远景水气与云雾氤氲一片。
With the data of control experiment, aboveground, underground and total competition (TC) indexes were made with its biomass of subject tree and its competitors and the distance between them.
植物间竞争是空间上一种连续过程,包括对地上光资源的竞争和对地下水养资源的竞争。
Photo Tip: When your subject is of indeterminate size-a mountain, a body of water, a snowscape-add a sense of scale by including something of known size, such as a person, a car, a tree, or an animal.
拍照小技巧:当拍摄对象的大小不容易看出来的时候——例如拍摄一座山,一片水域,一处雪景——在画面中加入一样可以确知大小的对象,例如一个人,一辆车,一只动物等。
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