Full interpretation of vertical search engine-search engine technology

1. What is a vertical search engine?
Vertical Search is not just an industry-wide search like google. Taking the real estate industry as an example, if we use google to capture web pages to build a real estate industry google, it will not work. Technical barriers do not need to be explained. Even if we use search technologies such as nutch and lucene, we cannot provide differentiated services, no differentiated products cannot survive under the rules that Internet winners can eat, that is, do not simply imitate, but try to form a complementary approach.
Vertical search is different from general search such as google and baidu in terms of positioning, content, users, and marketing strategies. Therefore, vertical search is not just a simple industry google.
Users use google, baidu, and other general search engines by keyword. Semantic search results tend to produce knowledge, such as articles, papers, and news; vertical Search also provides keywords for search, but is placed in the context of an industry knowledge, the returned results tend to be information, messages, entries, and so on. He told the House buyers that he wanted to find different information about supply and demand, articles, and news. This feature is determined by their respective technical features. For example, if the google search engine is a positive pyramid, the vertical search engine is an inverted pyramid, and the two are complementary.
2. What is vertical search?
In my opinion, the essence of vertical search is a simplified integration of vertical portal information provision methods.
There is a saying in the search field: a user cannot describe what he is looking for, unless he is asked to see what he is looking for, this process is a bit like looking for an object, luck is the biggest feature of users' search behavior. Vertical search engines provide better luck for users.
Vertical search is used to serve a certain function. For example, if a user searches for a house, the house buying information is a vertical search. Reprocessing information is critical, whether it is structured data or unstructured data.
3. Vertical search content source:
Resources of Portal
B. Resources provided by industry users through open interfaces
C. Resources released by normal users
D. Capture resources of industry users
A technical expert responsible for searching at Microsoft Asia Research Institute said: 75% of the content cannot be searched by general search engines. Here there is a 2-layer meaning:
(1) the website structure is unreasonable and the webpage is unfriendly to search engines;
(2) because the information on the Internet is massive, unstructured information needs to be organized for better display.
It would be better if the hacker could provide a search. Vertical portal websites are the best readers of industry information.
The main content provided by vertical search engines should not be limited to common web indexing, but also include business information processing and structured information.
4. Where is the threshold for vertical search?
On the Internet, the threshold is more than resources. Vertical Search is also like this. Whether it can provide comprehensive and authoritative industry information or possess industry resources is the threshold for vertical search engine development. In other words, the vertical portal is the father closest to the vertical search lineage. SouFun is a vertical portal in the real estate industry. No one in the real estate field knows what vertical search is.
Vertical Search is not a technical difficulty, but an innovation in users' participation in portal website behavior and integration of vertical portal websites to upstream and downstream information resources of the industry.