Give some research on Geographic Information Science

First of all, I declare that this article is purely nonsense. Therefore, it is inevitable that the ideas will jump and flourish. Sorry. Part of the article is inspired by Wang Yu, a PhD student who has dropped out of Tsinghua. In fact, the academic research and school-running principles mentioned above have made many teachers and students very embarrassed ......

Geographic Information Science is a concept proposed at the end of the last century. Its core is to change GIS from technology to science. This is no problem. For example, we have computer science, the problem is the goal and thinking. China is good at xuanjicang theories, such as Lao Tzu's Tao. Therefore, the more basic it is, the closer it is to an unknown world. the better it is.

In 1980s or before, the Computer Science Department designed some hardware and software, such as the great font layout. But now we are learning from our ancestors, so the sorrow of Wang Yu. If Mr. Yuan Longping is in the current academic environment, will he not be laid off? Can Mr. Chen jingrun make that achievement in his current Mathematics Institute? The answer is self-evident, but why can no one stand up and shout "stop "?

Previously, it was said that GIS in China is "platform and department fly together". Although this is not good, it is always several times better than the current "Research and metaphysics. Although the former is not good, although it wastes the joint property of the majority of working people, it can create MapGIS and Supermap, which can make the market share of domestic GIS software more than 10 times that of other software, we are proud of these GIS practitioners. The latter will not only lead to ignorance and rhetoric, but also waste taxpayers' money and supplement the national economy and livelihood.

The above is nonsense. The premise of putting forward geographic information science is that GIS lacks the theoretical basis, and existing theories are either computer technology or cartography and geography. In the classical 2-volume Geographic Information System, the criticism of GIS Based on cartography lies in that the map is static (scale, amount of information), two-dimensional (without 3D and temporal dimensions), accurate, plane, and so on, as the expression of space has many problems, such as sincerity.

However, it is not tomorrow that we will not be able to use the map. I cannot see it. After about 10 years and 20 years, the map is still a map, with a solid mathematical foundation that ensures its digitization. Therefore, GIS, Google Map, and LBS are available. So, as Einstein said, He does not approve of the fact that young people are engaged in too many theoretical questions, because there are too many uncertainties. So, for today's Geographic Information Science problems, it is really not everyone should do it, all go drill, leave it to goodchild these people, they have the status of money, there are cars and houses, so it doesn't matter, the majority of Master's Degree practitioners in school will not be difficult to accompany.

My personal time in the GIS industry is not short compared with that of a major. I have not graduated from the undergraduate course yet, but it is not short for many practitioners. 02 years later, I started GIS and started to develop it completely. I started to look at all kinds of academics from the end of 03.ArticleAnd Related books, up to now, I believe that the number of articles read by 90% of doctoral graduates in this major must be more than twice as good (especially in foreign languages, because there are many idle times ), however, in the words of Wang Yu, the more I see it, the more dizzy it is, probably because the articles are mixed, so I am very puzzled. One of the key conclusions is that although many people are proposing Geographic Information Science in the US, many people are still engaged in technology and application, especially the latter. Foreigners may have a short vision and will only go to the forefront. Without the strength and confidence of our scholars.

In many Chinese articles, I personally appreciate several articles by Wang jinfeng on spatial analysis (which can be checked and recommended). Although they are comprehensive, they are clear, science is not technology, not metaphysics.

Go back to the map and talk about the GIS research circle from the software. There are some phenomena, such as Nanjing and Shanghai. For example, there are more people using MapInfo in South China University, South China University, and East China Normal University. In addition, from articles and projects that I can understand, there are many learning models in these areas (that is, GIS is used to solve the problem, that is, Application Research). Sun Yat-sen University does not know, but GIS seems very good. It is probably related to the traditional merchant temperament. Currently, the most popular GIS regions in China and the better ones are probably the two regions.

Maps and GIS, or electronic maps and GIS are actually inseparable, or similar. In the frontier research field of geographic information science in ucgis, there is a part of it that is the analysis of geology. Our huge GIS Department should focus on this part as well. Sadly, more than 95% of people only know plotting and metaphysics. Learning Models and analysis are just nouns for them (thanks to Tang Guoan, he understands that GIS research should be a learning analysis ). For other aspects of ucgis, technologies (such as spatial databases) are reserved for hypergraphs and colleges behind them. It makes sense to leave things close to metaphysics to a place like the Physical Science Institute, because many people also have a car and a house, so that the vast majority of extremely poor doctoral masters will consume this? What's hateful is the policy makers of many colleges and universities. Why should we keep an eye on them?

Mr. Yan jianya mentioned in a GIS summary article last year that "the existing GIS theoretical basis can support the development of geographic information system technology", "over the past 20 years, what truly promotes the development of geographic information systems is the development of computer technology and the constant expansion of application fields. In particular, the development of computer technology has become the main driving force for the rapid development of geographic information system technology, "I personally agree. As mentioned in this article, automatic Extraction and Recognition of similar features require long-term research, making it difficult to make breakthroughs in the short term. The so-called need for long-term research, personal understanding is the need for the basic environment, the basis of research, rather than everyone can enter this field.

The real basic research requires the support of the Environment, foundation, and considerable funds. I would like to ask if there are several conditions in the GIS Department across the country, and there is no need for two hands. Therefore, the problem with geographic information science is: first, there is no need for so many people to do it. Second, most people are not qualified to do it.

Li said that no one dared to ask questions about his graduation thesis and postgraduate entrance exams, probably because the older generation of scholars, despite being an asshole, do not have the courage of a new generation of scholars who are not knowledgeable, I would like to ask if such a person can graduate? Admission? Any essay or article can be picked up by fearless scholars without any knowledge.

Return to GIS, an example. How many orders of magnitude are there from the Earth's radius to cells? Google maps use very limited scale to express detailed street information that is less than one meter of resolution to global information, how many analyses and applications require the so-called multi-scale (scale research has other meanings and meanings, while scale is one aspect )? I personally believe that the application of GIS or similar technologies can solve practical problems. "The existing GIS theoretical basis can support the development of GIS technology ", the key lies in the in-depth (so-called industry knowledge) and Development Implementation (Software Engineering) of the problem. Both of them are our weakness. We can avoid not doing research, and we can also steal our ears.

Many practical problems are solved by engineering rather than theoretical problems. This should be clear in it and related industries. Therefore, for individuals, they prefer to focus on engineering rather than theory; second, research must begin from the reality. for GIS, GIS is used to solve problems related to a subject, such as geology, agriculture, climate, and forestry, what I do not understand is why no one is allowed to do these things in depth and others are not allowed to do it. The so-called learning threshold is also true. Third, programming problems, this has been repeatedly discussed with many people in many places. My personal opinion is that we should be skilled. For other subjects, the experiment is an instrument or a field. for GIS, the experiment isProgramAt present, most software cannot be tested without development (secondary development or macro language.

For the GIS industry, due to computer science, knowledge and skills are updated quickly, so continuous learning is particularly important, especially for older scholars. Of course, with theory and experience, learning is fast. In fact, many scholars have long lost their learning ability, so how can we expect what they can bring to our industry. They are deeply rooted in different disciplines. Therefore, I admire my master's degree and Current mentor, both of which belong to the pre-liberation school and can keep learning (there is definitely no fart here, because the former is already a bureaucratic school and has a holiday, you can't wait for it ).

Sometimes I am really confused. I have entered two software-related industries. One is educational software and the other is GIS. The former was once full of blood, but the environment and the situation do not matter. How does GIS work? The current lbs and electronic map have transformed GIS from an industry that many people do not know into a mainstream industry. However, the academic circle, at least the Chinese academic circle, is still very alienated from this. A student from Mi Guo talked about GIS a few days ago. He mentioned Google Earth, which is deeply rooted in the hearts of the people. Does our professor know Google Earth? When ESRI also began to learn about Google map and Google Earth and seriously improved its products, should ESRI focus on these products for every practitioner? In the actual teaching environment, what kind of practitioners will be in the end, and what kind of tomorrow will practitioners bring GIS in China?

Therefore, although the GIS industry is taking advantage of the tide of Web 2.0 to move GIS from technology and science to service, this has become a consensus in the industry, but there is no research related to this, if there are no schools working and teaching in this area, will we be late again?

After chatting, I remember that when I went to school, my school didn't have many activities or the like, but now there are countless activities in the school and campus. In such an environment, students think about these things every day, how can I learn well, so I don't know how to program after graduation from a prestigious university. I don't use a GIS desktop system, and I don't have any secondary development capabilities, which is nothing strange. It's not a strange thing. What will happen to the GIS industry tomorrow?

Finally, I would like to summarize my point of view. As an application discipline and GIS circle, the research should focus on the application fields of GIS and the combination of applications, such as the application of GIS for Geological Models and analysis. The teaching and research of GIS must teach students practical work ability on the basis of theory, including the use and development of tools. Tools can be quickly used on different platforms and tools through their own theoretical basis and experience. development capability is the basic programming Foundation, without the knowledge of programming languages and data structures, I don't believe that a person will understand the meaning of spatial indexes, the data structure of GIS, and many basic knowledge of GIS. He has no development ability. For a practitioner, whether it is research or application, there are many limitations.

 

Note 1: the so-called Xuan Xue refers to pseudoscience, vague, concept-to-concept, and quantitative but non-quantitative research. Geography, including natural geography and economic geography, the Metering revolution of the 60 or 70 s in the last century has been quantified, and our scholars are still studying it in the way of metaphysics.

NOTE 2: What I like is to write something technical, such as the text on the front side about the design mode or the development and usage experience. I do not like writing such text because I am very tired but don't vomit.