In today's society, spending an afternoon or a weekend with the help of search engines and bibliographic systems, even if there is no expert in front of you, with the help of thinking, sorting, and organizing, is enough to help us build a clear knowledge system. Let me talk about my personal quick learning experience.
So, how can we quickly enter a new field of knowledge? Tetralogy
1. First, a lot of extensive reading:
Goal: to expand the source of information, while listening to it is clear
Key actions: search for elements, view related bibliographies, record key terms and concepts, collect some fine articles for repeated reading
Key points: Open to absorb, don’t make judgments, don’t force yourself to remember
Expand information sources, search, find, open to absorb, do not make judgments, do a lot of extensive reading, and do not strive for full understanding. In this process: properly save some articles that you think can be intensively read again, but at this stage, do not focus on intensive reading. Our goal is: first let the brain explode.
This period of time is painful for some friends. The reason for the pain is that you try to think about every information, and then you find conflicts, confusion of perspective, or eager refutation. But for me, it is very enjoyable. Sometimes you will find a point of view that is completely different from your own. Don't rush to refute it. Sometimes you will encounter a point of view that you have already thought about, and don't be complacent. Sometimes you will encounter content that you have not thought of at all. Don't be too busy thinking about it to distinguish right from wrong. In short, the absorption is greater than the resolution, and even greater than the understanding. The way to avoid out of context is to let more content come in first. Just like Rashomon, each piece of information may only be provided to one angle, but only enough to slowly piece together the overall picture.
At this stage, it takes a total of 4-5 hours, and the initial effect can be achieved.
The real effect will be affected by the following factors:
Are you good at using search engines
Do you have a good source of information
2. Sort out core terms and sort out relationships
Goal: Establish a knowledge framework system
Key actions: review terms, read appropriately, and clarify the relationship between terms
Essentials: Visualization, storytelling
After 4-5 hours of extensive reading, we have already made a big breakthrough. We already have various terms in a brand new knowledge field. When someone raises it, you at least know what they are talking about, and you can just think of the information that existed before the term, and what kind of scene it is. Basic communication should no longer be a problem.
However, the real chemical reaction should happen afterwards:-find a relationship
Relationship is a very useful concept. The ancients said that "inferences from one another" is itself dependent on relationships. The "things" represented by the "one" and "three" must have certain similarities and correlations, so that we can draw inferences from one another.
However, it is clear that "relationship" itself is a very advanced skill, otherwise there will be no saying: "things have the bottom and the end, and things have the beginning and the beginning. Knowing the order, then the approach is close"-people who suddenly feel that they have the Tao They are relationship scientists, and they all have mastered the key to all kinds of relationships.
There are many types of relationships, such as causality (because of A and B), dependence or influence (what will happen with A and B), order (first do A and then B), similarity (A and B in some specific attributes Similar), similar (A and B are close in dimensions such as space or time)... If we are not sure, then they are collectively referred to as "relevance". You can understand why the concept of relevance often appears in the news.
The terms we have, of course, must be "relevant" relationships, and our task is precisely to further clarify these "relevance".
3. Verification
When you sort out the terminology and can speak smoothly and visualize the relationship between them, in fact, I think you should have already started.
But is your understanding correct? Or in the process, you will definitely encounter doubts and obstacles to understanding.
Record these problems, and then re-do some targeted intensive reading, the effect is much better than the initial intensive reading. because:
If you read with questions, you will definitely have more thoughts, and you will become passive and become an interaction with the author. You have a certain foundation of knowledge and understanding.
At this stage, if you still encounter some unanswerable questions, then ask more senior people for help. In addition, you don’t have to accept their answers in full. When you have some foundation, you will find that the answer given by these "experts" is only a possibility or a scenario. Or his own very good experience, but whether it can be used by you, it depends on the specific situation.
4. Plan
With the knowledge system, it is easier for you to choose under the overall picture: which ones you want to continue to study in depth, which ones are necessary for your future work, and which ones are limited to what you currently understand.
For example, in the process of building data products, it is discovered that data warehouse, data elt, and data mining are limited to understanding, while the data visualization of the data application layer and the report system can be better combined with the background of the past. Go deep into it.
After making a choice, you can formulate a specific improvement plan!