CN103377435A - Method and system for achieving mobile advertisement recommendation - Google Patents

Method and system for achieving mobile advertisement recommendation Download PDF

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Publication number
CN103377435A
CN103377435A CN201210126622XA CN201210126622A CN103377435A CN 103377435 A CN103377435 A CN 103377435A CN 201210126622X A CN201210126622X A CN 201210126622XA CN 201210126622 A CN201210126622 A CN 201210126622A CN 103377435 A CN103377435 A CN 103377435A
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event
property value
triggers
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predetermined period
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冯术葵
韩曙
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FRACTALIST CHINA Inc
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FRACTALIST CHINA Inc
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Abstract

The invention provides a method for calculating the event triggering rate. The method comprises the steps that a first attribute value of an event which is triggered firstly in a preset period and a first attribute value of an event which is triggered secondly are acquired, and the corresponding relation of the first attribute value of the event which is triggered firstly and the first attribute value of the event which is triggered secondly is recorded; the ratio C1 of the times that the first event is triggered secondly to the times that the first event is triggered firstly is calculated when the first attribute value is used as a first parameter, and the ratio C2 of the sum of the times that the events are triggered secondly to the sum of the times that the events are triggered firstly is calculated when the first attribute value is used as the first parameter; when the first attribute value is used as the first parameter, the triggering rate of the first event is E=(C1+C2)/2. The triggering rate factor of all the events with the same first attribute value is added in the triggering rate calculated according to the method, thus, the calculated triggering rate still has certain significance even to new events.

Description

A kind of method and system of realizing that moving advertising is recommended
Technical field
The present invention relates to a kind of method and system that calculates the Event triggered rate.
Background technology
Event can be triggered under certain condition, can obtain the toggle rate of this event according to calculating number of times that a certain event the is triggered ratio with the number of times of event appearance, can further analyze trigger rule and other characteristics of this event according to the toggle rate of this event.Generally, by the toggle rate of the different event in calculating a period of time under specific attribute, and then the trigger rule of these different event of analysis and comparison under specific attribute.But for a new event, the toggle rate that calculates by this algorithm often is zero, is easy to be left in the basket in the analysis and application process in later stage.
Summary of the invention
In view of this, fundamental purpose of the present invention provides a kind of method and system of realizing calculating the Event triggered rate, has reflected the whole toggle rate of all events under this particular community with the toggle rate of the event under the particular community that realizes calculating.
For achieving the above object, a kind of method of calculating the Event triggered rate that realizes provided by the invention is achieved in that
A plurality of events have the first property value, and the first triggering is the second necessary condition that triggers, and described method comprises:
A, obtain in described predetermined period by the first property value of the first event that triggers and by the first property value of the second event that triggers, record described by the corresponding relation of the first event that triggers and the first property value and by the event of the second triggering and the corresponding relation of the first property value.
B, when calculating the first property value and be the first parameter according to the record of steps A the first event by the second number of times that triggers when being the first parameter by the ratio C 1 of the first number of times that triggers and the first property value described a plurality of events by the second number of times sum that triggers with by the ratio C 2 of the first number of times sum that triggers.
C, in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be E=(C1+C2)/2.
Preferably, described step B further comprises: according to the record of steps A calculate in predetermined period described a plurality of events by the second number of times sum that triggers with by the ratio C 3 of the first number of times sum that triggers.
Step C comprises: in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be E=(C1+C2+C3)/3.
Preferably, described a plurality of events further have the second property value,
Steps A further comprises: obtain in described predetermined period by the second property value of the first event that triggers with by the second property value of the second event that triggers, record is described in the described steps A is comprised with the corresponding relation of the first property value with the corresponding relation of the first property value and by the second event that triggers by the first event that triggers: record described by the corresponding relation of the event of the first triggering and the first and second property values and by the event of the second triggering and the corresponding relation of the first and second property values.
When calculating the first property value among the step B and being the first parameter the first event by the second number of times that triggers with comprised by the ratio C 1 of the first number of times that triggers: when calculating the first property value and be the first parameter and the second property value and being the second parameter the first event by the second number of times that triggers with by the ratio C 1 of the first number of times that triggers.
Step B further comprises: when calculating the second property value and be the second parameter according to the record of steps A described a plurality of events by the second number of times sum that triggers with by the ratio C 4 of the first number of times sum that triggers.
Step C comprises: in described predetermined period and the first property value be the first parameter and the second property value when being the second parameter the toggle rate of the first event be E=(C1+C2+C4)/3.
Preferably, described the second property value is position attribution.
Preferably, further comprise when obtaining by the first property value of the second event that triggers in the described steps A: judge whether this second triggering effectively triggers, and if so, the record among the execution in step A is by the second event that triggers and the corresponding relation of the first property value.
Preferably, described a plurality of event further has the 3rd property value, further comprise before the steps A: event produces the 3rd parameter when being triggered by first in predetermined period, the 3rd property value of more described the 3rd parameter and this event, if the 3rd parameter is less than described the 3rd property value, the record among the execution in step A is described by the first event that triggers and the corresponding relation of the first property value.
Preferably, the method further comprises default the first weighted value T and the second weighted value P, and then step C comprises: in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be E=(T * C1+P * C2)/2.
Preferably, described the first property value is the period attribute.
The present invention also provides a kind of system of calculating the Event triggered rate, and described system comprises: trigger acquiring unit, database and computing unit.
Described triggering acquiring unit is used for: obtain in predetermined period by the first property value of the first event that triggers and by the first property value of the second event that triggers, sent to described database by the first event that triggers with the corresponding relation of the first property value and by the event of the second triggering and the corresponding relation of the first property value with described;
Described database is used for: record described by the corresponding relation of the first event that triggers and the first property value and by the second event that triggers and the corresponding relation of the first property value that described triggering acquiring unit sends over;
Described computing unit is used for: when calculating the first property value and be the first parameter according to the record of described database the first event by the second number of times that triggers when being the first parameter by the ratio C 1 of the first number of times that triggers and the first property value described a plurality of events by the second number of times sum that triggers with by the ratio C 2 of the first number of times sum that triggers, in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be (C1+C2)/2.
Preferably, described computing unit be further used for calculating in predetermined period described a plurality of events by the second number of times sum that triggers with by the ratio of the first number of times sum that triggers;
Described computing unit be used in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event comprise for (C1+C2)/2: in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be (C1+C2+C3)/3.
Via above-mentioned technical scheme as can be known, in the toggle rate computing formula of a certain event of the present invention when the first property value is preset parameter in the predetermined period, the toggle rate of whole events when having added the first property value and be identical preset parameter, even like this for new event, the Event triggered rate that calculates also has certain meaning, reacted the toggle rate of the whole events when the first property value is identical, therefore in the analysis and research of later stage toggle rate, especially calculate in the process of probability of occurrence of event according to toggle rate, new event can be not out in the cold yet.
Description of drawings
Fig. 1 is for realizing the schematic flow sheet of method of the present invention;
Fig. 2 is for realizing the schematic flow sheet of method specific embodiment of the present invention;
Fig. 3 is for realizing the structural representation of system of the present invention;
Fig. 4 is for realizing the structural representation of system of the present invention specific embodiment.
Embodiment
See also Fig. 1, the concrete steps of method that the present invention realizes calculating toggle rate are as follows:
Step 101: obtain in described predetermined period by the first property value of the first event that triggers, record described by the event of the first triggering and the corresponding relation of described the first property value.
Step 102: obtain in described predetermined period by the first property value of the second event that triggers, record described by the event of the second triggering and the corresponding relation of described the first property value.
Step 103: when calculating the first property value and be the first parameter according to the record of step 101 and step 102 the first event by the second number of times that triggers when being the first parameter by the ratio C 1 of the first number of times that triggers and the first property value described a plurality of events by the second number of times sum that triggers with by the ratio C 2 of the first number of times sum that triggers.
Step 104: in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be (C1+C2)/2.
Wherein the first triggering is the second necessary condition that triggers, and only has by the first event that triggers and could be triggered by second.Described a plurality of event is at least two events.
The method can further include calculates according to the record of step 101 and step 102 that described a plurality of events are by the ratio C 3 of the second number of times sum that triggers with the number of times sum of the first triggering in predetermined period, and then step 104 comprises: in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be E=(C1+C2+C3)/3.
Described a plurality of event can also have the second property value, step 101 further comprises the first property value that obtains in described predetermined period by the first event that triggers in this moment the method, and step 102 further comprises to be obtained in described predetermined period by the second property value of the second event that triggers.Record described in the step 101 is described to be comprised with the corresponding relation of described the first property value by the first event that triggers: record describedly by the first event that triggers and the corresponding relation of described the first property value and the second property value, record described in the step 102 and is describedly comprised by the event of the second triggering and the corresponding relation of described the first property value: record described by the event of the second triggering and the corresponding relation of described the first property value and the second property value.When calculating the first property value in the step 103 and being the first parameter the first event by the second number of times that triggers with comprised by the ratio C 1 of the first number of times that triggers: when calculating the first property value and be the first parameter and the second property value and being the second parameter the first event by the second number of times that triggers with by the ratio C 1 of the first number of times that triggers.Step 103 further comprises: when calculating the second property value and be the second parameter according to the record of step 101 and step 102 described a plurality of events by the second number of times sum that triggers with by the ratio C 4 of the first number of times sum that triggers;
Step 104 comprises: in described predetermined period and the first property value be the first parameter and the second property value when being the second parameter the toggle rate of the first event be E=(C1+C2+C4)/3.
Computing method were similar when described a plurality of event had other property values.
Further comprise when obtaining in predetermined period by the first property value of the second event that triggers in the step 102 of the method: judge that this second triggers and whether effectively trigger, if so, the record in the execution in step 102 is described by the second event that triggers and the corresponding relation of described the first property value.If not, can process ends, can wait for that also trigger the next time in the predetermined period.
Described a plurality of event can also have the 3rd property value, further comprise before the step 101: event produces the 3rd parameter when being triggered by first in predetermined period, the 3rd property value of more described the 3rd parameter and this event is if the 3rd parameter is less than described the 3rd property value, execution in step 101.If the 3rd parameter is not less than the 3rd property value, can process ends, can wait for that also trigger the next time in the predetermined period.Here the 3rd parameter can be 0 to 1 the numerical value that produces at random, and the 3rd property value can be the probability of occurrence of event, by relatively can decision event whether occurring of the 3rd parameter and the 3rd property value.
The method can also comprise default weight T and P, and then the toggle rate E=(C1+C2)/2 in the step 104 is revised as E=(T * C1+P * C2)/2.
Described the first property value and the second property value can be respectively period attribute and position attribution.
Fig. 2 is used for the calculating to the clicking rate of display advertisement A, B, C and D on the media platform for realizing a specific embodiment of the inventive method.When wherein the user accesses a concrete media platform, advertisement on this media platform is triggered by first, this advertisement was triggered by second when the user clicked display advertisement on this media platform, the first triggering is the second necessary condition that triggers, the first property value is the period attribute, and the second property value is position attribution.
See also Fig. 2, the concrete steps of this embodiment comprise:
Step 201: set a predetermined period T, during user's access medium platform, produce the random factor between 0 to 1.
Step 202: have 4 display advertisement A, B, C and D on this media platform, relatively the appearance ratio of this random factor and these 4 display advertisements.Here the appearance ratio of display advertisement is what set in advance.The appearance ratio is considered to show the user of access in the step 201 greater than the advertisement of this random factor.Here the value of random factor has guaranteed the fairness of this algorithm, and can find out, the higher advertisement of ratio occurs, shows user's possibility also higher.Here adopt random factor to judge whether this advertisement shows this user, can certainly adopt other similar algorithms to calculate the number of times that advertisement is demonstrated, do not affect realization of the present invention.
For example, the random factor of generation is 0.6, and the appearance ratio of advertisement A is 0.4, and the appearance ratio of advertisement B is 0.8, and the appearance ratio of advertisement C is 0.7, and the appearance ratio of advertisement D is 0.1.The appearance ratio of advertisement A and D is less than this random factor, and then advertisement A and D do not show this user, and the appearance ratio of advertisement B and C is greater than this random number, and then advertisement B and C have showed this user.
Call statement is under the SQLServer environment:
Figure BDA0000157727610000061
Step 203: record ratio occurs greater than advertisement B and C and advertisement B and corresponding period and the positional information of C of this random factor.Advertisement B and C are the advertisement that has showed this user.Here the access log that produces in the time of can be by user's access medium platform obtains period and positional information.
Step 204: the user clicks advertisement B, judges whether it is effective click.In order to obtain the true clicking rate of advertisement, need to filter out noise data here.Concrete filter type comprises:
Judge and click this advertisement to the time of withdrawing from this advertisement, if should the time not satisfy default threshold value, then think this time to click to be invalid clicks.
Whether this advertisement page is successfully showed after judging the click advertisement, and if not, then this time click is invalid clicks.
Stop the web crawlers technology, produce relevant daily record when the user clicks advertisement, judge the character string that whether comprises search engine in this daily record, if so, the advertisement of then clicking for crawler technology belongs to invalid clicks.
For stopping media brush amount, judge whether when advertisement is also successfully showed on media platform, just not click, if so, then belong to invalid clicks.
The click that does not meet normal access rule also belongs to invalid clicks.
In conjunction with actual conditions, and realize the filtering invalid clicks according to the combination of above one or more modes, obtain effective click of advertisement.
Step 205: if this time click as effectively clicking, record the corresponding relation of described display advertisement B and its period, positional information.The click logs that can produce when clicking advertisement here obtains period and positional information.
Step 206: repeat above-mentioned steps until arrive predetermined period T, add up 4 display advertisements at the displaying number of times of different periods and diverse location according to the record result of step 203, add up 4 display advertisements in the number of clicks of different periods and diverse location according to the record result of step 205.
Step 207: according to the statistics of step 206, calculate respectively 4 display advertisements in the clicking rate of different periods and diverse location.For example calculate advertisement B in the clicking rate of period 9 positions 45, then be calculate advertisement B in advance/establish the number of clicks of period 9 in the cycle and position 45 and show the ratio C1 of number of times, advertisement A, B, C and D are at total number of clicks of period 9 and the ratio C2 of total displaying number of times, the ratio C3 of advertisement A, B, C and D total number of clicks of 45 and total displaying number of times in the position, then the clicking rate of this advertisement B in period 9 positions 45 is (C1+C2+C2)/3.In order to adjust the shared ratio in clicking rate of C1, C2 and C3, the formula of this clicking rate also can be for (C1+C2 * T+C2 * P)/3, wherein T and P are Arbitrary Digit.
The formula that calculates clicking rate can also be for (C1+C2 * T+C2 * P+C4)/3, wherein C4 is advertisement A, B, C and D all positions and all ratio of the total number of clicks under the period and total displaying number of times in predetermined period.
Can also further adjust afterwards the appearance ratio of advertisement by the ad click rate that calculates, realize the purpose of recommended advertisements.The below illustrates concrete method of adjustment.
See also table 1, period is 9, the position is in 45 the situation, the clicking rate that advertisement A calculates is 0.394252537, the clicking rate that advertisement B calculates is 0.260172983, the clicking rate that advertisement C calculates is 0.167339082, the clicking rate that advertisement D calculates is 0.056804328, calculate respectively the clicking rate scale of above 4 advertisements, the clicking rate scale that calculates advertisement A is exactly to calculate the clicking rate of advertisement A at advertisement A, B, the ratio value of the clicking rate sum of C and D, the clicking rate scale of advertisement B calculates advertisement A and B exactly at advertisement A, B, the ratio value of the clicking rate sum of C and D, by that analogy.
The clicking rate scale computing formula of advertisement A is as follows:
0.394252537/(0.394252537+0.260172983+0.167339082+0.056804328)=0.448744。
Can calculate equally the clicking rate scale of advertisement B, C and D, the probability of occurrence of advertisement A is exactly its clicking rate scale, and the probability of occurrence of advertisement B is clicking rate scale poor of advertisement B and advertisement A, the probability of occurrence of advertisement C is clicking rate scale poor of advertisement C and advertisement B, and the probability of occurrence of advertisement D is clicking rate scale poor of advertisement D and advertisement C.This shows, also non-vanishing by the probability of occurrence that the method calculates even for new advertisement, realized the recommendation to new advertisement.
Table 1
Figure BDA0000157727610000091
The present invention also provides a kind of system that realizes calculating the Event triggered rate.
See also Fig. 3, described computing time, the system of toggle rate comprised: trigger acquiring unit 301, database 302 and computing unit 303;
Described triggering acquiring unit 301 is used for: obtain in predetermined period by the first property value of the first event that triggers and by the first property value of the second event that triggers, sent to described database 302 by the first event that triggers with the corresponding relation of the first property value and by the event of the second triggering and the corresponding relation of the first property value with described.Described database 302 is used for: record described by the corresponding relation of the first event that triggers and the first property value and by the second event that triggers and the corresponding relation of the first property value that described triggering acquiring unit 301 sends over.Said computing unit 303 to: according to the recorded database 302 is triggered by the first attribute value with the correspondence between the first and is triggered by the second attribute value of the first corresponding relationship to calculate the first an attribute value of the first parameter, the first frequency and a second trigger event is triggered by the first number of the ratio of C1, and the first attribute value is the first argument, the plurality of events triggered by the second number of the and with the first trigger and the ratio of the number of C2, in the preset period, and the first attribute value of the first parameter when the first trigger event rate (C1 + C2) / 2.
Preferably, described computing unit 303 be further used for calculating in predetermined period described a plurality of events by the second number of times sum that triggers with by the ratio C 3 of the first number of times sum that triggers.Described computing unit 303 be used in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event comprise for (C1+C2)/2: in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be (C1+C2+C3)/3.
Realize system of the present invention and realize that method of the present invention is corresponding, therefore fairly simple for the description of system, relevant part gets final product referring to the explanation to the inventive method.
Fig. 4 is used for the calculating to the clicking rate of 4 display advertisement A, B, C and D on a certain media platform for realizing a specific embodiment of system of the present invention.This system comprises: log acquisition unit 401, database 402, computing unit 403 and display unit 404.
The click logs that the access log that log acquisition unit 401 produces when being used for obtaining user's access medium platform in the predetermined period and user produce when clicking advertisement on this media platform, upper advertisement and period and the positional information that occurs when described access log comprises the access medium platform, described click logs comprises advertisement and period and the positional information of click, and access log and click logs are sent to described database 402.
Database 402 is used for access log and the click logs that log acquiring unit 401 sends.
Computing unit 403 is used for calculating respectively 4 advertisements according to the access log that database 402 records and calculates respectively 4 advertisements in the triggering times of different periods, diverse location at the displaying number of times of different periods, diverse location with the click logs that records according to database 402, according to showing that number of times calculates respectively 4 display advertisements with triggering times and sends to display unit 404 in the clicking rate of different periods and diverse location and with the clicking rate that calculates.For example calculate advertisement B in the clicking rate of period 9 positions 45, then be to calculate advertisement B in the number of clicks and the ratio C1 that shows number of times of period 9 and position 45, advertisement A, B, C and D are at total number of clicks of period 9 and the ratio C2 of total displaying number of times, the ratio C3 of advertisement A, B, C and D total number of clicks of 45 and total displaying number of times in the position, then the clicking rate of this advertisement B in period 9 positions 45 is (C1+C2+C2)/3.In order to adjust the shared ratio in clicking rate of C1, C2 and C3, the formula of this clicking rate also can be for (C1+C2 * T+C2 * P)/3, wherein T and P are Arbitrary Digit.
The formula that calculates clicking rate can also be for (C1+C2 * T+C2 * P+C4)/3, wherein C4 is advertisement A, B, C and D at whole positions and whole ratios of the total number of clicks under the period and total displaying number of times.
Display unit 404 is used for the clicking rate that the demonstration computing unit calculates.
The above only is preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (10)

1. a method of calculating the Event triggered rate is characterized in that, a plurality of events have the first property value, and the first triggering is the second necessary condition that triggers, and described method comprises:
A, obtain in described predetermined period by the first property value of the first event that triggers and by the first property value of the second event that triggers, record described by the corresponding relation of the first event that triggers and the first property value and by the event of the second triggering and the corresponding relation of the first property value;
B, when calculating the first property value and be the first parameter according to the record of steps A the first event by the second number of times that triggers when being the first parameter by the ratio C 1 of the first number of times that triggers and the first property value described a plurality of events by the second number of times sum that triggers with by the ratio C 2 of the first number of times sum that triggers;
C, in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be E=(C1+C2)/2.
2. method according to claim 1 is characterized in that, described step B further comprises: according to the record of steps A calculate in predetermined period described a plurality of events by the second number of times sum that triggers with by the ratio C 3 of the first number of times sum that triggers;
Step C comprises: in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be E=(C1+C2+C3)/3.
3. method according to claim 1 is characterized in that, described a plurality of events further have the second property value,
Steps A further comprises: obtain in described predetermined period by the second property value of the first event that triggers with by the second property value of the second event that triggers, record is described in the described steps A is comprised with the corresponding relation of the first property value with the corresponding relation of the first property value and by the second event that triggers by the first event that triggers: record described by the corresponding relation of the event of the first triggering and the first and second property values and by the event of the second triggering and the corresponding relation of the first and second property values;
When calculating the first property value among the step B and being the first parameter the first event by the second number of times that triggers with comprised by the ratio C 1 of the first number of times that triggers: when calculating the first property value and be the first parameter and the second property value and being the second parameter the first event by the second number of times that triggers with by the ratio C 1 of the first number of times that triggers;
Step B further comprises: when calculating the second property value and be the second parameter according to the record of steps A described a plurality of events by the second number of times sum that triggers with by the ratio C 4 of the first number of times sum that triggers;
Step C comprises: in described predetermined period and the first property value be the first parameter and the second property value when being the second parameter the toggle rate of the first event be E=(C1+C2+C4)/3.
4. method according to claim 3 is characterized in that, described the second property value is position attribution.
5. method according to claim 1 is characterized in that,
Further comprise when obtaining by the first property value of the second event that triggers in the described steps A: judge whether this second triggering effectively triggers, and if so, the record among the execution in step A is by the second event that triggers and the corresponding relation of the first property value.
6. method according to claim 1, it is characterized in that, described a plurality of event further has the 3rd property value, further comprise before the steps A: event produces the 3rd parameter when being triggered by first in predetermined period, the 3rd property value of more described the 3rd parameter and this event, if the 3rd parameter is less than described the 3rd property value, the record among the execution in step A is described by the first event that triggers and the corresponding relation of the first property value.
7. method according to claim 1, it is characterized in that, the method further comprises default the first weighted value T and the second weighted value P, and then step C comprises: in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be E=(T * C1+P * C2)/2.
8. according to claim 1 to the described method of 7 any one, it is characterized in that described the first property value is the period attribute.
9. system of calculating the Event triggered rate, described system comprises: trigger acquiring unit, database and computing unit;
Described triggering acquiring unit is used for: obtain in predetermined period by the first property value of the first event that triggers and by the first property value of the second event that triggers, sent to described database by the first event that triggers with the corresponding relation of the first property value and by the event of the second triggering and the corresponding relation of the first property value with described;
Described database is used for: record described by the corresponding relation of the first event that triggers and the first property value and by the second event that triggers and the corresponding relation of the first property value that described triggering acquiring unit sends over;
Described computing unit is used for: when calculating the first property value and be the first parameter according to the record of described database the first event by the second number of times that triggers when being the first parameter by the ratio C 1 of the first number of times that triggers and the first property value described a plurality of events by the second number of times sum that triggers with by the ratio C 2 of the first number of times sum that triggers, in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be (C1+C2)/2.
10. system according to claim 9 is characterized in that, described computing unit be further used for calculating in predetermined period described a plurality of events by the second number of times sum that triggers with by the ratio of the first number of times sum that triggers;
Described computing unit be used in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event comprise for (C1+C2)/2: in described predetermined period and the first property value when being the first parameter the toggle rate of described the first event be (C1+C2+C3)/3.
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Application publication date: 20131030