Research On WEB Segment Algorithm Based On Mobile Device

With the rapid development of telecommunication, people want to access Web pages by using mobile phones just like they use PC, but the problem has been not well solved due to small screen and less computational power of the mobile device.Web pages are originally designed for browsers of personal the computer which has a big screen and is easy for paging and scrolling. Since the content of Web pages is rich while mobile device has very little screen and memory to support the whole pages at once, the conversion from Web content to content that suit mobile device to display has become a popular field.The paper first analyses recent research on this field, including pure html document conversion and natural languages. Most of the conversion algorithms are based on the relationship of html tags, but html tags are not very accurate to categorize the content of the Web pages into blocks, each of which to be displayed as a single page on the screen of mobile device. So new algorithms are proposed to solve this problem, one is base on Dom Tree and visual features of each Web page. Each leaf node of Dom tree is regarded as a smallest semantic block. Through semantic block extraction and segmentation detection and weight value, Web page blocks are found and reconstructed so that they are suitable for mobile device to display. The other first clusters information blocks (which composes the Web page) hierarchically into a block tree. And according to the features of the screen of devices, it then converts the nodes of the tree into pages suited for small screen.On the base of the research, a small prototype is developed to change the Web page into small screen pages.