table of Contents
Data "study group second week of class," the concept of learning Buried
1 Introduction
If you only see the data without business knowledge, it is difficult to produce a concept. For example, there are 320 million population, land area is 1,566,500 square kilometers, if we do not have the historical knowledge, these figures do not have any sense. It is even worse than pure emotional awareness, cognitive features such that the smallest countries in the world.
So, we know the context-specific semantics is a prerequisite, and can not be ambiguous (eg defining the minimal state is above the minimum land area or population at least), only to ensure that the premise, we can effectively receiving outside information transfer.
2. concept
2.1 The term learning
the session :
Definition: session control, typically stored in the server. (In fact the client has a string of characters, after the journey to the server parse the parsed data back to the client.) When users access the page content within the application (WEB, APP, etc.) when stored in the session the value will not be lost and change (this value corresponds to a unique ID to access the same), if the user has access, the value of the session will always exist.
session expired: beyond the default time will be disconnected (cookie and session involve the transmission protocol, this time you can modify the default); If you generate a new session, then the old session will be discarded.
If we want to analyze the data point buried logs, we have to know when to start and end, which relies heavily on painting session control.
The URL of :
on the WWW, each has a unified information resource and the only Internet address, the address is called the URL (Uniform Resource Locator, uniform resource locator), which is the uniform resource locator signs WWW, refers to the network address .
Uniform Resource Locator System (uniform resource locator; URL) is a method for specifying the location of information on the Internet World Wide Web service program.
URL is a string of characters, these characters can be letters, numbers and special symbols. A URL can be used to express a variety of methods, such as: writing paper, or a sequence encoding a character set octets. URL interpretation depends only on the characteristics of the characters used.
Buried then have to apply to know url may contain parameters (via get by value), you want to without being seen either by post or on their own encryption.
2.2 definition of learning (main data caliber)
The number of orders : orders, singular case.
Let us be clear (for data caliber), "orders" contains "retreat" orders? "Beijing's order" is an order or orders under Beijing's consumption in Beijing? The number of orders is calculated by computing the log or business library order id synchronized? (This should be the latter, after all, the latter considered stored in the database) such as customer orders at 23:59, 1:00 the next day to complete the order, the order count on the first day or the next day?
Payment orders : this should primarily examine whether the order also includes returned or canceled.
GMV : GMV: Gross, Merchandise Volume, is the total turnover (certain time period) mean. This actually refers to the photographed order amount, it contains a partial payment and non-payment.
2.3 blackening saying
Channel : clues sources.
Buried on the one hand can record the user's operational data, the definition of product data can be recorded, it is generally Buried doing online. For example, sell a product, the customer is the channel through which micro letter, microblogging, station group, the official website to come in?
Trigger : My understanding is action statistics or other buried point operation. For example, a product leaflet, we can count the page and click on the go from the residence time of the user browse product information, this operation is triggered.
3. Other concepts
1. Indicators :
Index is a comprehensive concept and its numerical description of the overall number of features, it is also known as composite indicators. Concept in statistical work and theoretical studies of actual statistics, often directly explain the overall number of features called indicators. Common indicators mean, maximum, minimum, total number. For example, GDP is an indicator.
2. dimension : Dimension (Dimension), also known as dimension, is the number of independent parameters in mathematics. For example, a table listing products have a product name, product id, product price, quantity and other products, these are the dimensions.
3. Session : has been said above.
4. Module : refers to the procedure should be associated with some set up conveniently packaged call.
5. Hang bit : prime location to advertise.
Many products in the common position of the region, such as Banner position, search position, brand recommended location, commodity classification position even recommend locations that many are content to run and you can change, we put these bits known as pits.
"Pit-bit operation": data analysis and scenario practice
6. Search word : Search term refers customers to search products, services, terms, Internet applications, e-commerce.
7. The the PUSH message : push messaging, in a mobile operating system, the APP message may implement the functionality called push (push) a. push is able to serve as a reminder or wake the user's role, and it is one app operating channel, used properly can help product operations personnel to achieve operational goals more efficiently, on the contrary it makes use of blind APP becomes annoying.
Ten minutes take you through the APP news push (Push)
8. The ID : each representative of a data sequence number.
9. Device ID : ID of each representative of a device.
10. Access : every click should be considered first visit.
PV (visits): the Page View, ie, page views or clicks, ie each time a user refreshes once.
IP access number refers to the number of independent IP access, IP calculation is based on an independent visit the site once calculated as the number of IP access within a calculation period. In the same calculation period no matter how many times were calculated IP access to 1 times. 1 day with a calculation period of a calculation period, but also to calculate a one hour period.
UV number (Unique Visitor) access refers to the number of unique visitors access, a computer terminal as a visitor, refers to access through the Internet, browse individuals this page. Example: I use on a home computer for a site, and after a while my sister also use the same site on the computer at home, no one went to rest, this is the site of today's UV 1
11. exposure : exposure is usually a page All times equal to pv uv (number of visitors) to bring (page views). Impressions talking about property ad slot.
12. Display : show is the number in front of customers to show up customers search for your product when related words.
13. Click : A click is when a customer clicks into the number of your product.
14. attributes : product attributes, personal feelings can be understood as a dimension.
15. Label: Personally feel that management is playing tag labels for all users of your product (user portrait?).
You can play Tags:
- Foundation class label information
- User operation based label
- A user belonging to a specific tag
16. The strategy : to develop a different strategy for the group of the label, thousands of thousand faces. (RFM model ah)
tags and Policy Reference links
17. Personalization: Different strategies is the personalization.
18. A trigger
19 slides
20. Refresh
21. page
22. Jump
23. Wake
pathway for the six words are Buried operation, the most common trigger.
24. The Source : with 25. .
25. material : collected from real life to, without finishing, the emotional, the dispersion of the raw material.
26. Niche : Show a picture of goods and so on.
27. Client : A client (Client) or the called user terminal, refers to the corresponding server, the client program to provide local services. In addition to some applications run only locally, usually mounted on a common client, we need to run server-side complement each other.
38. Version : the version originally refers to a book after many private copies, marking a variety of different book or otherwise formed. With the development of the times, but also began to be used on the television version, software and other things, but introduce the same methods to describe the object of two different things.
29. Channel : has been said above.
30. The the URL of : has been said above.
31.The URI : In computer terms, a uniform resource identifier (Uniform Resource Identifier, URI) is a string that identifies a name for Internet resources. This allows the user to identify any kind of resources (local and Internet) interact through a specific protocol. URI is defined by the grammar and associated protocols comprises determining solutions.
url and uri difference?
URI and URL defines what the resources are, but the URL also defines how to access resources. A URL is a specific URI, which is a subset of URI, which uniquely identifies not only resources, but also provides information on positioning the resource. URI is on a semantic abstraction, may be absolute or relative, and the URL you must provide sufficient information to locate, is absolute.
uri can be considered just a unique identification number, similar to everyone's ID number, address and identity card is the url + name.
32. The RD : RD is research and development (R & D). PHP program, such as apes, Java programs ape, whether it is love or crazy Andrews belong to this category.
33. The PM : product manager.
34. The FE : front-end research and development.
35. The the UE : user experience.
36. The UED : User Experience Design (English: User Experience Design), user-centric design a means to target the needs of the user carried out the design.
37. The QA : tests.
38. The OP : operation and maintenance.
39. The MRD : Market Requirements the Document, market requirements document.
40. The PRD : the Document Product Requirements, Product Requirements Document.
41. The FSD : the Document Functional Specifications, features in detail.