The language of Yandex search requests: description, features and reviews

The Internet today is a fount of information of planetary scale, where every inhabitant of the Earth is able to find practically everything that is required of him. Possessing unthinkable volumes of data and information, mankind also has all the necessary means for the fastest and most comfortable search of what is required to everyone at a certain point in time. These means are the search engines that each of us uses daily: Google, Yandex, Rambler, Yahoo and many other technologies with their unique capabilities for different preferences.

And they have one simple property unified by them - none of the systems is a kind of super-technological center, storing in its resources an unimaginable amount of information for all occasions. All of them are inherently guides to users on the vast expanses of the Internet and work on certain software algorithms.

Yandex search engine query language : basic basics

The functional of "Yandex" allows you to flexibly sort all the results obtained, taking into account specific domains, regions, languages and many other parameters. The input data format and the results can be customized and filtered by users using simple character combinations. Thanks to this, the efficiency and convenience of the search are greatly improved.

Each request from the user is first sent to the most free server (immediately after the automatic analysis of the system load), after which the program "Metasearch" deals with its processing. The software in real time analyzes the entered information in the search line for the linguistics, geographic location of the user, the membership of the query to the "most popular" / "recently assigned" categories, etc. The search results for these cases are stored for a while in the cache "Metasearch ", So that the delivery of the necessary information is faster.

In the case of a search for rarer information, information about which is not in the cache, the request processing is redirected to another program mechanism - "Basic search". He analyzes the entire database, broken down by various duplicate servers to speed up the search processes, and returns the information found back to the "Meta-search".

All received data are eventually ordered and presented to the user in a ready-made, conveniently perceived form. The whole process takes an average of 1-2 seconds on average.

The correct search in Yandex: the language of search queries and syntax features

The presence of certain words in the results obtained, as well as their relative positioning, can easily be adjusted with the help of special operators that form the language of Yandex search queries.

On the basis of official information

There are search operators "Yandex" to refine information on such parameters as: headers, file types, host, domains, the date of the last modification of the results pages and their language.

Almost any foreign analog has a similar query language. The language of Yandex search queries, in turn, from competitors, by and large, differs slightly more advanced features and functions.

Morphological specifications

By default, the search engine offers the user a wide range of output results based on the query entered, the basis of which is not only the self-entered word / phrase, but also its various forms (case, gender, declination, number, etc.). Variations of a part of speech (be it a noun, a verb, an adjective, etc.) and the first letter register are also taken into account. For example, when typing "attacked" the user will receive information on other verbal forms: "attack", "attack", "attacked" (but root words like "attack", "attacked" will not be counted). In this case, the results will be shown both with the capital letter in the requested word, and with the small one.

Virtually all the features of the query language of various search engines are based on similar principles of work. In "Yandex" the restriction on morphological features can be useful for more accurate work of the searcher:

Special methods of selection of keywords for contextual advertising

The languages of search queries also extend far beyond the user segment, rewarding with simple work tools and advertisers. In particular, for such purposes, Yandex has in its arsenal a number of algorithms and operators that enable the effective promotion of its sites and services in the search system.

The logic of showing contextual advertising to user requests is based on the selection of words that are thematically related to the subject of this announcement, as well as on their other word forms. For example, such methods allow to display an announcement about legal services not only in response to "legal services in the city of N", but also to those users who made similar inquiries (whether they are "city lawyers N prices", "lawyers offices", " Lawyer city N cheap ", etc.). As a result, advertising will be displayed to a wider audience of users, and this, accordingly, potentially will attract more attention to it.

However, ads should only be shown to users who make thematically related queries in the search engine. For example, advertising of legal courses will not be effective in any way, if it is shown to users who need the services of a lawyer at the moment. Regulation of such moments is carried out with the help of a whole list of operators in the search system "Yandex". The description of the query language for advertising tasks in general will look like the one shown below.

Lessons of comfort and simplicity from the search tips of "Yandex"

Simplification of the process of entering search information using hints is already perceived without any excitement. Such technology is now in every popular search engine, it is based on the preliminary issuance of popular queries, similar to the letters entered by the user in the search string.

"Yandex" this system implements through some brand features. All tooltips are handled and grouped from among the most massive user requests. Scientific terms from encyclopedic articles, names of films, musical works and other thematically suitable content are also used. As a result, the user from the moment of entering the very first letter in the search string gets under it a whole list of variants of the most popular queries beginning with the same symbols.

In addition, the tips can immediately indicate the links to the necessary sites or the answer to the question asked. For example, it is enough to enter half the query "circumference", as in the corresponding field under the search string the user will be presented with a ready-made calculation formula. Asking "the capital of Australia", you will not have time to finish the phrase to the end, as "Yandex" will immediately give this information in the list of tips.

If the link to any site is a relevant response to the request, then this address will be available immediately in the same field. This approach will allow you to quickly go to the desired resource, bypassing the list of all the results found.

Filtering obscene content

The functionality of "Yandex" also provides for the exclusion of "18+" resources from search results, regardless of the query language tools used. This function is useful in the first place to protect young users from "adult material" on the Web. And even if the child does not hesitate to use all the means by which Yandex's search query language is rich, it still will not help him to overcome the barrier from such sites.

In the search for "Yandex" for users, there are 3 modes of content filtering:

• "Without protection" - there are no restrictions on the issued results.
• "Moderate" - if the user's request is not explicitly directed to the search for "18+" sites, then they are withdrawn from the search results.
• "Family" - obscene content is completely absent from the search results.

All these options for protection against non-child content are monitored in the corresponding Yandex settings menu.

Advanced Search Engine Features

In addition to a wide range of different query language operators, Yandex also offers a couple more ways to find information:

• "Advanced" is a more pleasant service with an intuitive structure for those who need to use query language tools. It is enough just to enter the necessary parameters into the corresponding fields (search for a specific resource, region, exact match with the words of the search query, search by headings, language, document format, date of the last update, etc.) without resorting to less comfortable manual input of operators . "Advanced search" and the query language of "Yandex" - the same functionality, but with the difference that the first one offers the use of the same operators in a more convenient form.

• "Zen search". Based on the history of user search queries, Yandex offers the latter a media publishing service. Available only for mobile devices and externally is a set of previews of news, selected according to the history of views. The user can choose any favorite publication, read the first few paragraphs and, if it is interesting to him, go to the publisher's site for this material. Otherwise, it is enough to choose "Do not like" in order not to display a specific news or to mark in this way the entire resource, excluding it from your news feed.

Mechanisms of protection from unwanted and malicious information

The main property of any search engine is not only a variety of operators of search queries. "Yandex" is also characterized by a high level of security of all the results found. Basic check of pages and warnings about harmful sites at this search system have appeared in 2009. Detection of threats is carried out by two technologies:

• Antivirus protection acquired from Sophos and based on the signature approach: the antivirus system is accessed when a user enters the web page to a database containing information about known malicious software. Despite the high speed of work, this technology is almost completely useless in the event of a collision with new virus threats. Therefore, Yandex also uses the second technology.
• A proprietary anti-virus complex, the basis of which is the behavioral factor. First, the protection when accessing the site analyzes whether it makes a request from the browser for additional files, redirects to an extraneous resource, etc. If it detects extraneous actions of the resource without the user's knowledge (launching JavaScript modules, full programs, cascading style sheets), then Is entered in the black list of dangerous sites and the base of virus signatures. The owner of the site will also be notified of these threats, and all subsequent checks will be periodically conducted until all security problems on it are completely eliminated.

Such an approach to the analysis of the provided pages with search results in combination with the proprietary technologies of Yandex allowed to minimize the percentage of infected sites in this search engine to units. Daily inspections of "Yandex" cover a total of up to 23 million resources, and a month this number comes to about 1 billion.