The content of the invention
In view of the above-mentioned problems, it is an object of the invention to provide a kind of reading content method of adjustment, device, terminal device and
Storage medium, reading content is periodically adjusted, improve user and read perception, reduce churn rate, improve user on reading platform
Retention ratio.
The invention provides a kind of reading content method of adjustment, comprise the following steps:
In preset time the reading data of calling and obtaining user and to it is described reading data analyze;
Include at least new reading content of one edition according to corresponding to the generation of the result of the analysis with corresponding reading content
Carry out AB tests;
The new reading content that the result tested according to the AB chooses optimal version is updated with carrying out the adjustment of reading content.
Preferably, the reading data of the calling and obtaining user in preset time and to it is described reading data analyze, have
Body includes:
The reading data of calling and obtaining user in preset time;
The reading rate of the user is calculated according to the reading data;
The reading conditions of the user are obtained according to the reading rate.
Preferably, the reading rate that the user is calculated according to the reading data, is specifically included:
User's adjacent page turning time twice is obtained from the reading data;
The reading time of this page is determined according to the adjacent time of page turning twice;
Obtain the data volume of the reading content of this page;
The reading rate of this page of reading content is calculated according to the data volume and the reading time.
Preferably, it is described according to the result of analysis generate with corresponding reading content corresponding to include at least one edition newly read
Read content and carry out AB tests, specifically include:
When judging that ratio of the reading rate more than pre-set velocity threshold value exceedes preset ratio threshold value, user's hair is obtained
The survey feedback to corresponding reading content sent;
Only change unitary variant according to the generation of the result of the survey feedback is corresponding with corresponding reading content
Single argument AB tests are carried out including the new reading content of at least one edition;The variable comprise at least reading content, reading flow or
One kind in page composition.
Preferably, it is described according to the result of analysis generate with corresponding reading content corresponding to include at least one edition newly read
Read content and carry out AB tests, specifically include:
When judging that ratio of the reading rate more than pre-set velocity threshold value exceedes preset ratio threshold value, user's hair is obtained
The survey feedback to corresponding reading content sent;
Change at least two variables according to the generation of the result of the survey feedback is corresponding with corresponding reading content
Including at least one edition new reading content carry out multivariable AB tests;Wherein, the variable comprises at least reading content, read
Two or more in flow or page composition.
Preferably, it is described according to the result of analysis generate with corresponding reading content corresponding to include at least one edition newly read
Read content and carry out AB tests, specifically include:
When judging that ratio of the reading rate more than pre-set velocity threshold value exceedes preset ratio threshold value, user's hair is obtained
The survey feedback to corresponding reading content sent;Wherein, the reading rate is that the chapters and sections for including multi-page read speed
Degree;
Change at least two pages according to the generation of the result of the survey feedback is corresponding with corresponding reading content
Including at least one edition new reading content carry out multi-page AB tests.
Present invention also offers a kind of reading content adjusting apparatus, comprise the following steps:
Module is transferred, is analyzed for the reading data of calling and obtaining user in preset time and to the reading data;
Test module, for according to corresponding to generating with corresponding reading content the result of the analysis including at least one edition
New reading content carry out AB tests;
Adjusting module, the new reading content of optimal version is chosen for the result tested according to the AB to carry out reading content
Adjustment renewal.
Preferably, the module of transferring specifically includes:
Unit is transferred, the reading data for the calling and obtaining user in preset time;
Computing unit, for calculating the reading rate of the user according to the reading data;
Analytic unit, for obtaining the reading conditions of the user according to the reading rate.
Preferably, the computing unit specifically includes:
Moment obtains subelement, for obtaining user's adjacent page turning time twice from the reading data;
Time determination subelement, for determining the reading time of this page according to the adjacent time of page turning twice;
Data volume obtains subelement, the data volume of the reading content for obtaining this page;
Speed computation subunit, for calculating the reading of this page of reading content according to the data volume and the reading time
Speed.
Preferably, the test module specifically includes:
First feedback acquiring unit, judge that the reading rate is more than the ratio of pre-set velocity threshold value more than default for working as
During proportion threshold value, the survey feedback to corresponding reading content that user sends is obtained;
Single argument test cell, it is corresponding with corresponding reading content for being generated according to the result of the survey feedback
Only change unitary variant including at least one edition new reading content carry out single argument AB tests;The variable is comprised at least and read
Read one kind in content, reading flow or page composition.
Preferably, the test module specifically includes:
Second feedback acquiring unit, judge that the reading rate is more than the ratio of pre-set velocity threshold value more than default for working as
During proportion threshold value, the survey feedback to corresponding reading content that user sends is obtained;
Multivariable test cell, it is corresponding with corresponding reading content for being generated according to the result of the survey feedback
The variable of change at least two including at least one edition new reading content carry out multivariable AB tests;Wherein, the variable is extremely
Less include reading content, reading flow or page composition in two kinds and more than.
Preferably, the test cell specifically includes:
3rd feedback acquiring unit, judge that the reading rate is more than the ratio of pre-set velocity threshold value more than default for working as
During proportion threshold value, the survey feedback to corresponding reading content that user sends is obtained;Wherein, the reading rate is bag
Include the chapters and sections reading rate of multi-page;
Multi-page test cell, it is corresponding with corresponding reading content for being generated according to the result of the survey feedback
The page of change at least two including at least one edition new reading content carry out multi-page AB tests.
Present invention also offers a kind of reading content to adjust terminal device, including processor, memory and is stored in institute
State in memory and be configured as by the computer program of the computing device, computer program described in the computing device
Reading content method of adjustment described in the above-mentioned middle any one of Shi Shixian.
Present invention also offers a kind of computer-readable recording medium, it is characterised in that the computer-readable storage medium
Matter includes the computer program of storage, wherein, control the computer-readable recording medium when the computer program is run
Place equipment performs the reading content method of adjustment described in above-mentioned middle any one.
As can be seen from the above technical solutions, embodiments of the invention have advantages below:
The embodiments of the invention provide a kind of reading content method of adjustment, device, terminal device and storage medium, by fixed
Phase obtains the reading conditions that user reads data analysis user, is generated according to user's reading conditions corresponding with corresponding reading content
Carry out AB tests including the new reading content of at least one edition, the result finally tested according to the AB is chosen the new of optimal version and read
Content is read to carry out the adjustment of reading content renewal, the reading habit that user is held by AB accurate testings selects, taken at regular intervals
User reads its reading conditions of data acquisition accordingly to adjust reading content, is adjusted flexibly, and shortens the reading content adjustment cycle, carries
The reading perception of high user, churn rate is reduced, improve the retention ratio of user on reading platform.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Referring to Fig. 1, first embodiment of the invention provides a kind of reading content method of adjustment, it can be adjusted by reading content
Whole terminal device performs, and comprises the following steps:
S11, in preset time the reading data of calling and obtaining user and to it is described reading data analyze.
In embodiments of the present invention, the reading number of reading content adjustment terminal device calling and obtaining user in preset time
The reading conditions of user are analyzed according to this, and specifically, the reading content adjusts terminal device calling and obtaining user in preset time
Read data and simultaneously calculate the reading rate of the user according to the reading data, for example, transfer reading data in 2 days or
Reading data in one week etc., the preset time can specifically be set according to the mechanism of concrete application, the present invention to this not
Any restriction is done, the reading content adjustment terminal device carries out point of user's reading conditions according to the reading rate of the user
Analysis, obtains the reading conditions of the user, such as it in the reading rate of certain this book is per minute to be computed in the presence of 30% user
Reading surpasses 4000 words, and this is substantially abnormal reading rate, shows that user is simply rapidly performed by page turning and improper read
Content is read, at this moment needs the reading content adjustment terminal device to be adjusted the part reading content.
S12, include at least new reading of one edition according to corresponding to the generation of the result of the analysis with corresponding reading content
Content carries out AB tests.
In embodiments of the present invention, AB test be made for Web or App interfaces or flow it is two (A/B) or multiple
(A/B/n) version, in same time dimension, allow respectively the random access of the visitor group of constituent identical (or similar) these
Version, the user experience data and business datum of each group are collected, ultimate analysis evaluates the process that best version formally uses,
The dispute of different opinions in customer experience (UX) design can be eliminated using AB tests, preferred plan is determined according to actual effect,
And the true cause of problem by contrast test, can be found, improves product design and operation level, while establishes data drive
Closed loop procedure that is dynamic, constantly optimizing, is tested by AB, can reduce the issue risk of new product or new features, be product
Innovation provides safeguard.
In embodiments of the present invention, the reading content adjustment terminal device generates according to the reading conditions of the user of analysis
Send to the questionnaire of the corresponding reading content of user terminal corresponding to user, then the reading content adjusts terminal device
After the survey feedback of questionnaire for the corresponding reading content that user sends is received with reference to reading conditions generation with
The new reading content of multiple versions corresponding to corresponding reading content carries out AB tests, and the reading content adjustment terminal device obtains
Take the clicking rate of each version in preset time and read data to analyze its reading conditions.
S13, the result tested according to the AB choose the new reading content of optimal version to carry out the adjustment of reading content more
Newly.
In embodiments of the present invention, after multi version AB tests are carried out for same reading content, the reading content is adjusted
Whole terminal device obtains in preset time the clicking rate of each version and reads data to analyze its reading conditions, in the reading
Hold the new reading content that adjustment terminal device chooses optimal version according to the reading conditions, then by the new reading of the optimal version
Content sends to editor terminal corresponding to responsible editor the confirmation for waiting responsible editor, and the reading content adjustment terminal device exists
Get and the new reading content renewal of the optimal version is uploaded into reading platform so that user is read after confirming to instruct.
In summary, the embodiments of the invention provide a kind of reading content method of adjustment, read by periodically obtaining user
The reading conditions of data analysis user, include at least one edition according to corresponding to the generation of user's reading conditions with corresponding reading content
New reading content carry out AB tests, the result finally tested according to the AB chooses the new reading content of optimal version to be read
The adjustment renewal of content is read, the reading habit that user is held by AB accurate testings selects, and taken at regular intervals user reads data and obtained
Take its reading conditions accordingly to adjust reading content, be adjusted flexibly, shorten the reading content adjustment cycle, the reading for improving user is seen
Sense, churn rate is reduced, improve the retention ratio of user on reading platform.
For the ease of the understanding of the present invention, some currently preferred embodiments of the present invention will be done further retouch below
State.
Second embodiment of the invention:
On the basis of first embodiment of the invention, the reading speed that the user is calculated according to the reading data
Degree, is specifically included:
User's adjacent page turning time twice is obtained from the reading data;According to the adjacent page turning time twice
Determine the reading time of this page.
In embodiments of the present invention, the reading content adjustment terminal device is the reading feelings for obtaining single page reading content
Condition, the adjacent page turning time twice of user corresponding to certain one page is obtained from the reading data, then can be according to the user
The adjacent time of page turning twice determines the reading time of this page.
Obtain the data volume of the reading content of this page;Calculated according to the data volume and the reading time in this page reading
The reading rate of appearance.
In embodiments of the present invention, reading content adjustment terminal device is used corresponding to certain one page reading content obtaining
After the reading time at family, the data volume of the reading content of this page is obtained, such as obtains this page to include the word sum of punctuation mark,
The reading rate of this page of reading content is calculated according to the reading time and word sum, such as is computed analyzing certain one page
Reading rate account for 70% for the ratio of (300 words~1000 word) per minute, then show the reading content substantially conforming to user
The selection of reading habit, by calculate reading rate analyze reading conditions method it is simply efficient, and can precisely obtain use
Family reading conditions.
Third embodiment of the invention:
It is described corresponding with corresponding reading content according to the generation of the result of analysis on the basis of second embodiment of the invention
Including at least one edition new reading content carry out AB tests, specifically include:
When judging that ratio of the reading rate more than pre-set velocity threshold value exceedes preset ratio threshold value, user's hair is obtained
The survey feedback to corresponding reading content sent.
In embodiments of the present invention, the reading content adjustment terminal device is corresponding by certain one page reading content calculated
User reading rate compared with pre-set velocity threshold value, wherein, the reading data of general user 300 word per minute~
Between 1000 words, using the big part of radix as criterion, such as given threshold is 2500 words per minute clocks, there are certainly some use
The reading rate at the family situation higher than the reading rate of general user, the consideration of this respect being present, then proportion is such as no more than
10%th, 15% or the parts of other ratio datas all then belong in the allowed band of data, the reading conditions more than preset ratio
Abnormal read state, when the ratio that the reading rate is more than the pre-set velocity threshold value exceedes preset ratio threshold value,
Such as calculate analysis and show that the reading rate of certain one page ratio per minute for surpassing 4000 words is 35%, the reading content adjustment is eventually
The reading content of this page is considered as the one kind for needing to be adjusted according to the overall reading conditions of this page by end equipment, in the reading
Hold adjustment terminal device correspondence of user terminal according to corresponding to the overall reading conditions generation transmission to user of this page of user to read
The questionnaire of content is read, then the reading content adjustment terminal device receives the corresponding reading content that user sends
The survey feedback of questionnaire is analyzed and summarized.
Only change unitary variant according to the generation of the result of the survey feedback is corresponding with corresponding reading content
Single argument AB tests are carried out including the new reading content of at least one edition;The variable comprise at least reading content, reading flow or
One kind in page composition.
In embodiments of the present invention, the reading content adjusts terminal device and in the reception tune difference feedback analyze always
After knot, only change including at least for unitary variant according to the generation of the result of analysis and summary is corresponding with corresponding reading content
The new reading content of one edition carries out single argument AB tests, refer to Fig. 2 and Fig. 3 for example generate two of only adjustment reading content it is new
Version reading content, or refer to Fig. 4 and Fig. 5 and for example generate two redaction reading contents of only adjustment reading flow for pre-
If user carries out selective click or reading, the reading content adjustment terminal device obtains the point of each version in preset time
Hit rate and read data to analyze its reading conditions, the new reading content of optimal version, institute are then chosen according to the reading conditions
Reading content adjustment terminal device is stated to send the new reading content of the optimal version to editor terminal etc. corresponding to responsible editor
The confirmation of responsible editor is treated, the reading content adjustment terminal device readding the new of optimal version after confirmation instruction is got
Read content update and upload to reading platform so that user is read, it is necessary to illustrate, the variable is not limited to include the page
The factors such as typesetting, depending on specific variable is set by concrete application mechanism, the present invention does not do any restriction to this.
Fourth embodiment of the invention:
It is described corresponding with corresponding reading content according to the generation of the result of analysis on the basis of second embodiment of the invention
Including at least one edition new reading content carry out AB tests, specifically include:
When judging that ratio of the reading rate more than pre-set velocity threshold value exceedes preset ratio threshold value, user's hair is obtained
The survey feedback to corresponding reading content sent.
In embodiments of the present invention, the reading content adjustment terminal device is corresponding by certain one page reading content calculated
User reading rate compared with pre-set velocity threshold value, when judge the reading rate be more than pre-set velocity threshold value ratio
Example is when exceeding preset ratio threshold value, such as reading rate 3500 ratio per minute of surpassing is 40%, more than preset ratio threshold value
15%, then the reading content adjustment terminal device generation is sent to the tune of the corresponding reading content of user terminal corresponding to user
Volume is interrogated, the survey feedback for then receiving the questionnaire for the corresponding reading content that user sends is analyzed and summarized.
Change at least two variables according to the generation of the result of the survey feedback is corresponding with corresponding reading content
Including at least one edition new reading content carry out multivariable AB tests;Wherein, the variable comprises at least reading content, read
Two or more in flow or page composition.
In embodiments of the present invention, the reading content adjusts terminal device and in the reception tune difference feedback analyze always
After knot, change including extremely at least two variables according to the generation of the result of analysis and summary is corresponding with corresponding reading content
The new reading content of few one edition carries out multivariable AB tests, such as generation changes 3 of reading content and page composition not simultaneously
Same redaction reading content supplies to carry out selective click or reading for pre-set user, and the reading content adjustment terminal device obtains
Take the clicking rate of each version in preset time and read data to analyze its reading conditions, then selected according to the reading conditions
Take the new reading content of optimal version.
Fifth embodiment of the invention:
It is described corresponding with corresponding reading content according to the generation of the result of analysis on the basis of first embodiment of the invention
Including at least one edition new reading content carry out AB tests, specifically include:
When judging that ratio of the reading rate more than pre-set velocity threshold value exceedes preset ratio threshold value, user's hair is obtained
The survey feedback to corresponding reading content sent;Wherein, the reading rate is that the chapters and sections for including multi-page read speed
Degree.
In embodiments of the present invention, the reading content adjustment terminal device calculates according to a chapters and sections of multi-page reads
Speed, the reading content adjust user corresponding to the reading content that terminal device calculates a chapters and sections according to multi-page
Reading rate compared with pre-set velocity threshold value, when judge the reading rate be more than pre-set velocity threshold value ratio exceed
During preset ratio threshold value, then the reading content adjustment terminal device generation, which is sent to the correspondence of user terminal corresponding to user, reads
The questionnaire of content is read, the survey feedback for then receiving the questionnaire for the corresponding reading content that user sends is divided
Analysis is summarized.
Change at least two pages according to the generation of the result of the survey feedback is corresponding with corresponding reading content
Including at least one edition new reading content carry out multi-page AB tests.
In embodiments of the present invention, the reading content adjusts terminal device and in the reception tune difference feedback analyze always
After knot, change including extremely at least two pages according to the generation of the result of analysis and summary is corresponding with corresponding reading content
Few one edition new reading content carries out multi-page AB tests, such as generation changes the whole chapters and sections reading content for including 3 pages
2 redaction reading contents carry out selective click or reading for pre-set user, the reading content adjustment terminal device obtains
Take the clicking rate of each version in preset time and read data to analyze its reading conditions, then selected according to the reading conditions
Take the new reading content of optimal version.
Referring to Fig. 6, sixth embodiment of the invention provides a kind of reading content adjusting apparatus, comprise the following steps:
Module 11 is transferred, is divided for the reading data of calling and obtaining user in preset time and to the reading data
Analysis.
Test module 12, for according to corresponding to generating with corresponding reading content the result of the analysis including at least one
The new reading content of version carries out AB tests.
Adjusting module 13, for the result tested according to the AB choose the new reading content of optimal version to be read in
The adjustment renewal of appearance.
Preferably, the module of transferring specifically includes:
Unit is transferred, the reading data for the calling and obtaining user in preset time.
Computing unit, for calculating the reading rate of the user according to the reading data.
Analytic unit, for obtaining the reading conditions of the user according to the reading rate.
Preferably, the computing unit specifically includes:
Moment obtains subelement, for obtaining user's adjacent page turning time twice from the reading data.
Time determination subelement, for determining the reading time of this page according to the adjacent time of page turning twice.
Data volume obtains subelement, the data volume of the reading content for obtaining this page.
Speed computation subunit, for calculating the reading of this page of reading content according to the data volume and the reading time
Speed.
Preferably, the test module specifically includes:
First feedback acquiring unit, judge that the reading rate is more than the ratio of pre-set velocity threshold value more than default for working as
During proportion threshold value, the survey feedback to corresponding reading content that user sends is obtained.
Single argument test cell, it is corresponding with corresponding reading content for being generated according to the result of the survey feedback
Only change unitary variant including at least one edition new reading content carry out single argument AB tests;The variable is comprised at least and read
Read one kind in content, reading flow or page composition.
Preferably, the test module specifically includes:
Second feedback acquiring unit, judge that the reading rate is more than the ratio of pre-set velocity threshold value more than default for working as
During proportion threshold value, the survey feedback to corresponding reading content that user sends is obtained.
Multivariable test cell, it is corresponding with corresponding reading content for being generated according to the result of the survey feedback
The variable of change at least two including at least one edition new reading content carry out multivariable AB tests.Wherein, the variable is extremely
Less include reading content, reading flow or page composition in two kinds and more than.
Preferably, the test cell specifically includes:
3rd feedback acquiring unit, judge that the reading rate is more than the ratio of pre-set velocity threshold value more than default for working as
During proportion threshold value, the survey feedback to corresponding reading content that user sends is obtained;Wherein, the reading rate is bag
Include the chapters and sections reading rate of multi-page.
Multi-page test cell, it is corresponding with corresponding reading content for being generated according to the result of the survey feedback
The page of change at least two including at least one edition new reading content carry out multi-page AB tests.
The reading content adjustment terminal device that seventh embodiment of the invention provides.The reading content adjustment terminal of the embodiment
Equipment includes:Processor, memory and it is stored in the computer journey that can be run in the memory and on the processor
Sequence, such as reading content adjustment programme.Realize that above-mentioned each reading content is adjusted described in the computing device during computer program
Step in adjusting method embodiment.
Exemplary, the computer program can be divided into one or more module/units, one or more
Individual module/unit is stored in the memory, and by the computing device, to complete the present invention.It is one or more
Individual module/unit can be the series of computation machine programmed instruction section that can complete specific function, and the instruction segment is used to describe institute
State implementation procedure of the computer program in the reading content adjusts terminal device.
The reading content adjustment terminal device can be desktop PC, notebook, palm PC and cloud service
The computing devices such as device.The reading content adjustment terminal device may include, but be not limited only to, processor, memory.This area skill
Art personnel are appreciated that reading content adjustment is not restricted to only include processor, memory etc., can include it is more or
Less part, either combines some parts or different parts, such as reading content adjustment terminal device can be with
Including input-output equipment, network access equipment, bus etc..
Alleged processor can be CPU (Central Processing Unit, CPU), can also be it
His general processor, digital signal processor (Digital Signal Processor, DSP), application specific integrated circuit
(Application Specific Integrated Circuit, ASIC), ready-made programmable gate array (Field-
Programmable Gate Array, FPGA) either other PLDs, discrete gate or transistor logic,
Discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor
It is the control centre of the reading content adjustment terminal device Deng, the processor, it is whole using various interfaces and connection
Reading content adjusts the various pieces of terminal device.
The memory can be used for storing the computer program and/or module, and the processor is by running or performing
The computer program and/or module being stored in the memory, and the data being stored in memory are called, described in realization
Reading content adjusts the various functions of terminal device.The memory can mainly include storing program area and storage data field, its
In, storing program area can storage program area, application program (such as sound-playing function, image needed at least one function
Playing function etc.) etc.;Storage data field can store uses created data (such as voice data, phone directory according to mobile phone
Deng) etc..In addition, memory can include high-speed random access memory, nonvolatile memory can also be included, such as firmly
Disk, internal memory, plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), secure digital (Secure Digital,
SD) block, flash card (Flash Card), at least one disk memory, flush memory device or other volatile solid-states
Part.
Wherein, if the reading content adjusts the integrated module/unit of terminal device in the form of SFU software functional unit
Realize and be used as independent production marketing or in use, can be stored in a computer read/write memory medium.Based on this
The understanding of sample, the present invention realize all or part of flow in above-described embodiment method, can also referred to by computer program
Related hardware is made to complete, described computer program can be stored in a computer-readable recording medium, the computer journey
Sequence when being executed by processor, can be achieved above-mentioned each embodiment of the method the step of.Wherein, the computer program includes calculating
Machine program code, the computer program code can be source code form, object identification code form, executable file or it is some in
Between form etc..The computer-readable medium can include:Any entity or dress of the computer program code can be carried
Put, recording medium, USB flash disk, mobile hard disk, magnetic disc, CD, computer storage, read-only storage (ROM, Read-Only
Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software
Distribution medium etc..It should be noted that the content that includes of the computer-readable medium can be according to making laws in jurisdiction
Appropriate increase and decrease is carried out with the requirement of patent practice, such as in some jurisdictions, according to legislation and patent practice, computer
Computer-readable recording medium does not include electric carrier signal and telecommunication signal.
It should be noted that device embodiment described above is only schematical, wherein described be used as separating component
The unit of explanation can be or may not be physically separate, can be as the part that unit is shown or can also
It is not physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Can be according to reality
Need to select some or all of module therein to realize the purpose of this embodiment scheme.In addition, device provided by the invention
In embodiment accompanying drawing, the annexation between module represents there is communication connection between them, specifically can be implemented as one or
A plurality of communication bus or signal wire.Those of ordinary skill in the art are without creative efforts, you can to understand
And implement.
Described above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications are also considered as
Protection scope of the present invention.