之前处理一批数据,是野外采集的验证点,想在GEE中完成监督分类。GEE提供的方法包括两个,一个是上传table和导入Fusion table,我使用的是Fusion table,需要对fusion table进行转换,包括格式转换以及土地覆被类型点的转换,主要用到了ee.FeactureCollection.remap函数,将对应的土地覆被类型点进行转换(remap后的覆被类型应该是从0开始,可以看remap函数介绍)。有一点需要注意,土地覆被类型点的经纬度坐标需要用longitude和latitude,如果用x,y会导致提取不出点所在的经纬度信息(strange~)。 fusiontable确实比较好用,但是不幸的是,到今年年底就要停止服务了(sad~)。如果不用fusiontable,用table upload也是可以的:将土地覆被类型点在ArcGIS中展示为shp文件,然后上传shp就搞定了,需要用到的依然是ee.FeactureCollection()函数,举个例子: var referenceData = ee.FeatureCollection(users/****/Trainingdata); var water = referenceData.filter(ee.Filter.eq(landcover,1)) //完成了对于验证点的调用
Technology white paper is a tricky business. It is like a product commercial so the chief technology architect needs to highlight the strength and competitive advantages using layman's language. On the other hand, as scientist, the chief architect is supposed to set a proper tone in the presentation, using objective language rather than subjective language widely adopted in the commercials. Steve Jobs can overwhelm his audiences with the extremely emotional terms such as amazing/unbelievable/incredible/miracle/magic, but a scientist cannot do so in a white paper even if he firmly believes in his tochnology being suprior. Furthermore, most companies need a white paper to be convincing without revealing details and secret srouces. That is why I try not to write white papers per se. 【置顶:立委科学网博客NLP博文一览(定期更新版)】
ArcGIS10:ArcGIS version not specified. You must call RuntimeManager.Bind before creating any ArcGIS 今天将ArcGIS系列的软件从ArcGIS9.3.1升级到ArcGIS10,然后就使用VS创建一个简单的AE应用程序,然后拖放一个toolbar、LicenseControl以及MapControl控件。 接着编译应用程序,编译成功。 点击运行时,出现如下错误: ArcGIS version not specified. You must call RuntimeManager.Bind before creating any ArcGIS components. 问题解决方案: 在program.cs中添加如下代码 ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode. EngineOrDesktop ); (注意,这里的代码不是 ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode. Engine );一定要有OrDesktop) 这里还需要添加一个Reference:ESRI.ArcGIS.Version(这步个人没做,不清楚什么意思) 完整的参考代码如下所示: using System; using System.Collections.Generic; using System.Windows.Forms; namespace WindowsFormsApplication1 { static class Program { /// summary /// The main entry point for the application. /// /summary static void Main() { ESRI.ArcGIS.RuntimeManager.Bind(ESRI.ArcGIS.ProductCode.EngineOrDesktop); Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new Form1()); } } }
Reading note: ConcGram 1.0 A phraseological search engine Chris Greaves The Hong Kong Polytechnic University Studies in Corpus Linguistics Software 1 2009. ConcGram 1.0 is a corpus linguistics software package which is specifically designed to find all the co-occurrences of words in a text or corpus irrespective of variation. The software finds the co-occurrences fully automatically, in other words, the user inputs no prior search commands. These co-occurrences are termed ‘concgrams’ and include instances of both constituency variation (increase in expenditure, increase in the share of public expenditure) and positional variation (expenditure would inevitably increase). ConcGram 1.0 is therefore uniquely suited to uncovering the full phraseological profile of a text or corpus. In addition to this principal function, ConcGram 1.0 allows the user to nominate concgram searches, and it also has the more traditional functions associated with corpus linguistics software. The software comes with a detailed online manual in a PDF file, which explains all of the functions and includes a user-friendly tutorial. In addition, the manual includes a discussion of the theoretical issues underpinning the development of the software and the implications of concgramming for the study of phraseology (Why Concgram? by Martin Warren). The software has a wide range of applications in the fields of Corpus Linguistics, Critical Discourse Analysis, Discourse Analysis, Lexicology, Lexicography, Pragmatics and Semantics. Table of contents Acknowledgement Introduction Chapter 1. ConcGram List Builder Chapter 2. Selecting a text or corpus to interrogate Chapter 3. Getting started with ConcGram Chapter 4. Managing the lists Chapter 5. Using the Configuration List Boxes Chapter 6. Automatic searches from specified words Chapter 7. Statistical tests Chapter 8. User nominated searches with ConcGram Appendix. ConcGram Tutorial Here enclosed the mannual of ConcGram: concgrammanual.pdf Good information for this software from PolyU, HK: http://www.engl.polyu.edu.hk/Research_Resources.php We can use it free online.
http://pierrelaurentcassiere.com/en-pulse.html Pulse Expanded cinema/sound installation, dimensions site specific, 2010 (Crookes radiometer, light bulb, laser, electronics, amplifier, low-frequency transducers) The fragile and silent spinning motion of a Crookes radiometer* produces powerful vibrations through the architecture. A slowly flicking bulb causes the motion of the light-mill, which wings alternatively obstruct a light ray pointed on a photo sensor. Once amplified, the signal is directly transmitted to low-frequency transducers, integrated in different architectural elements, to make the vibrating response of the room synchronized with the mill shadow movement. Cinema optical sound technique allows to transform the mill motion into an audio signal. The beat frequency is related to the rotation speed of the radiometer (video demo) * The radiometer is a light mill which was invented in 1875 by the English physicist and chemist Sir William Crookes (1832-1919). Among other discoveries, the scientist also invented the Crookes' tube, ancestor of the cathode ray tube. Along with his purelly scientific researches, he worked on mediums and paranormal phenomenon. http://www.youtube.com/watch?v=cey-JBeHrww The Crookes radiometer, also known as the light mill or solar engine, consists of an airtight glass bulb, containing a partial vacuum. http://www.alibaba.com/product-gs/941791060/Oval_Hanging_Radiometer.html Offline Contact Supplier Place Order Not exactly what you want? Post a quick Buying Request! Verified Supplier - Zhejiang Huamao International Co., Ltd. Business type: Trading Company Onsite operations checked and legal status confirmed Contact Details Company Profile See larger image Mr. Michael ZhengDepartment:SalesJob Title:Manager Contact Supplier Offline Telephone:86-574-87715596Mobile Phone:13967839938Fax:86-574-87970901-596Address:17-18F., Hengfu Building 1,No.828 Fuming Road, Jiangdong , Ningbo, China Zip:315140Country/Region:China (Mainland)Province/State:ZhejiangCity:NINGBO
The inevitable outcome of China and Google: The best of both worlds By Yonghe Zhang 1939 Germany in three years, had occupied most of Europe, North Africa, East Asia and the Pacific Islands . But five years later, when the Red Army approaching Berlin , Hitler and his girlfriend Eva Bo Braun committed suicide after their marriage. If Hitler could speak, he would say that Germany failed mainly because he did not have a powerful Google search engine and could not grasp and consolidate and develop the broad front. If you want to ask what is the main cause of the rapid rise of Japan 's postwar economy. Japanese interpretation is also because no powerful Google search engine, and can only stop at nothing toget from us a wealth of information on scientific and technical information. However, China 's economic rise does not rely on the powerful Google search engine, but by the introduction of off-the-shelf technology of capitalism. Has been basically completed at present the large scale of the introduction of capitalism, the economy enters a normal improvement and development. This will require powerful Google search engine. If we let Google out of China , the consequences are disastrous. There are only two or three backward countries include the North Korean dont allow Google to enter their markets. The effectiveness of Google in particular its rich part of the integrity of science and technology is unmatched by any Web search engine. Some nationalists to flatter Baidu and attack Google to indicate they are Patriots, doubtful ! At least they are not a real scholar 。 They might want to close the door, get rid of the capitalist reforms, back to catch Revolution, promoting production! old cage! With China's reform and opening up, Google has also been introduced, but has been filter-censored, which not only weakened the effectiveness of Google search engine, also hurt Google's universal values, and therefore is condemned in the West. Some say Google out of China because of the pressure from the US government, No, the US government has no right to interfere in the ideological, Google can ignore the US government, but Google can not ignore the strong public opinion - the pressure of civil rights. It was also said that civil rights is political. I said, not exactly on! Because Americans don't have politics beef. The author believes, Google only expectation is that the Chinese Government's political truth space for development. Therefore, China and Google both sides worked out a promising solution scenario, it is built on both sides to fully understand the universal value and on the basis of their own interests. This is the Chinese use the full power of Google search without review filtering engine: http://www.google.com.hk Google does not exit China . But get a universal value and economic interests of bright future. China did not lose Google, to protect China 's sustained economic development, but also creates a promotion of one country two systems model of the scientific development concept.
B. Croft, D. Metzler, and T. Strohman, Search Engines: Information Retrieval in Practice. Addison Wesley, February 2009. 你可以到 http://www.pearsonhighered.com/croft1epreview/ 下载目录和其中两章。 C. Manning, P. Raghavan, and H. Schtze , Introduction to Information Retrieval. Cambridge University Press, 2008.你可以到 http://nlp.stanford.edu/IR-book/information-retrieval-book.html 下载。 Baeza-Yates, R. B. Ribeiro-Neto. eds. Modern Information Retrieval. ACM Press, 1999 李晓明,闫宏飞,王继民,搜索引擎-原理、技术与系统,科学出版社 这学期教搜索引擎的课,暑假里读了一些相关教材和书,感觉这四本书还相当不错。不过什么书都需要有耐心读,而且还要不停的回头读,才能有所收获。
Physics In the time of semantic web, people are no longer satisfied with just finding something. You need a ‘librarian’ who can help you to organize what you try to find. Such as, Categorizing journal papers in some well-established topics, the authors who are usually the expert in this field, and Journals which usually cover the cutting-edge research about this problem. Furthermore, it is really time-consuming and inconvenient for us to check all those journals one by one. We need a search engine which could cover APS journals, European Physics Journals and UK IOP journals. Even with ArXiv, ScienceDirect and SCOPUS, semantic web searching is still a welcomed gadget for physicists. The SCITopia is right choice for physicists: http://www.scitopia.org Fig. 1 website of SCITopia Biology Just like Physics Review serial for physicists, PubMed is the most important source for biologists. So GoPubMed is the right choice for biologists. Fig. 2 website of GoPubMed