[(Title)] Survey: Many Facebook users unaware they can adjust news feed.

Sept. 5 (UPI) -- Facebook users, especially older ones, are unaware of how news stories are chosen for display in their news feed, new research showed Wednesday.

本周三最新研究显示，脸书用户，特别是年长的用户，不知道News feed中所展示的新闻是如何被挑选的。

The Pew Research survey said 53 percent of users over 18 said they didn't know why some stories showed up and some didn't. Additionally, only 36 percent said they've attempted to change or otherwise influence news content on Facebook.

皮尤调查称，在18岁以上的用户中，53%的人说他们不知道为什么有些报道会出现，有的则没有。此外，只有36%的人说他们曾试图改变或影响脸书上展示的新闻内容。

用户可以根据自己的新闻喜好对News feed进行自定义调整

The Pew poll also found about 46 percent of those under 50 have attempted to change the news feed. Only 28 percent in the 50 to 64 age group have tried adjusting it, as have 19 percent of those over 64.

皮尤调查还发现，在50岁以下的人中，大约46%的人尝试过改变News feed，在50岁至64岁年龄组中，只有28%的人进行过尝试，而64岁以上的人只有19%。

Half of Facebook users surveyed said they have a lot of control over the news feed, and three quarters said they prefer more or less of certain types of content.

在接受调查的脸书用户中，有一半的用户说他们对News feed有很大的控制，有四分之三说他们希望增加或减少某一类型的内容。

The survey polled nearly 5,500 people and has a margin of error of 2.4 points.

这项研究对近5500人进行了调查，误差幅度为2.4%。

The poll came on the same day Facebook filed a patent infringement lawsuit against BlackBerry in San Francisco federal court.

同一天，脸书在旧金山联邦法院对黑莓提起专利侵权诉讼。

The suit charges BlackBerry with stealing voice technology methodology, improvements to graphics, video and audio on mobile devices; GPS tracking and other patented processes.

该诉讼指控黑莓窃取了语音技术，改进了移动设备上的图形，视频和音频; GPS跟踪和其他专利程序。

BlackBerry sued Facebook in March, alleging patent infringement on its mobile messaging patents. It said Facebook made unauthorized use of BlackBerry technology in its Messenger service and WhatsApp and Instagram platforms.

今年3月，黑莓起诉了Facebook，声称其移动通信专利受到专利侵犯，称脸书在Messenger服务、WhatsApp和Instagram平台上未经许可使用了黑莓技术。