CN102957969A - Device and method for recommending program to IPTV (Internet protocol television) terminal user - Google Patents
Device and method for recommending program to IPTV (Internet protocol television) terminal user Download PDFInfo
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Abstract
The invention relates to a device for recommending a program to an IPTV (Internet protocol television) terminal user, which is used for recommending a basic time period for watching a new program to the IPTV terminal user, wherein the basic time period has periodicity. The device comprises a user watch record database, a preference defining unit and a recommending unit, wherein the user watch record database is used for recording the program information of the programs watched by the user, and the program information includes the basic time periods of the programs watched by the user; the preference defining unit obtains the user watch record from the user watch record database, defines and calculates the preference weights of the programs watched in different basic time periods by the user, and sorts the preference weights according to the magnitude; and the recommending unit recommends the basic time period with high preference weight to the user to watch the new program according to the weight sorting result output by the preference defining unit. Through the invention, the functions of the IPTV service are expanded in a personalized manner, and the experience and satisfaction degree of the user are improved.
Description
Technical field
The present invention relates to the IPTV field, more particularly, relate to a kind of programs recommended device and method of IPTV terminal use that is.
Background technology
In social science and natural science Related Research Domain, a large amount of decision problems all be unable to do without prediction, and is little of personal lifestyle, large to whole country, all can be to judgement of making prediction of the feasibility of some schemes and superiority-inferiority, thus select the behavior of optimum.And prediction plays considerable effect as the basis of decision-making to Scheme Choice.Simultaneously, the information of res gestae often also is that incomplete, relevant theory neither be omnipotent and perfect, people only limit to observation data to the relevant understanding of things, be the time sequence, and then can only utilize existing historical data to set up correlation model, and then predict future.
IPTV is just affecting and is changing people's life style as emerging industry with development speed at a high speed.According to the prediction of authoritative institution, will reach 1,620 ten thousand to Chinese IPTV terminal in 2012, and will enter the developing stage of an explosion type.Be accompanied by growing stronger day by day of IPTV, its platform has also built up the Pgmtime sequence data of a large amount of preciousnesses, and these data are all being contained the information that has important references to be worth to decision-making behind.Simultaneously, because the magnanimity program resource that the IPTV network exists, in conjunction with the constrained viewing ability of user in the real life, the user only can select own interested limited programme to watch in the finite time that is fit to own lifestyle.For " interested limited programme " and " finite time that is fit to own lifestyle ", all belong in essence the user behavior analysis research category of personalized service, it all is for different user provides different services, to meet the different needs.
In the prior art, a lot of Extraordinary program commending schemes have been proposed, it all mainly is that behavior (such as buying behavior, watch behavior, evaluation behavior etc.) to unique user is analyzed in essence, thereby the behavior in predictive user future, these schemes consider it more is to recommend its program that may like and how realize the factor such as recommendation function based on the IP multimedia system to IPTV user, and have ignored the opportunity of recommending.IPTV initial stage high speed development reason at home, also just because of the demand mode of hommization, namely the user can watch own interested program in suitable section basic time.Only have the angle that stands in more IPTV user, constantly for it provides the Extraordinary service, could improve user's experience sense and satisfaction.
For this reason, it is the programs recommended device and method of IPTV terminal use that the industry expectation proposes a kind of, and it can watch according to the user preference weight of program in different time sections, recommend the high time period of preference weight to watch for new program to the user.
Summary of the invention
The object of the present invention is to provide a kind of preference weight that can watch according to the user program in different time sections, recommend the device that the high time period of preference weight watches for new program to the user.
For achieving the above object, technical scheme of the present invention is as follows:
A kind of is the programs recommended device of IPTV terminal use, is used for section basic time to the new program of IPTV terminal use that proposes to watch, and basic time, section had periodically, and this device comprises: watching record of user database, preference definition unit and recommendation unit; The watching record of user database is used for the programme information that recording user is watched program, and this programme information comprises that the user watches section basic time of program; The preference definition unit obtains watching record of user from the watching record of user database, and definition is also calculated the user in the different preference weight that basic time, section was watched program, sorts by size again; Recommendation unit recommends preference weight high basic time section to watch according to the weight ranking results of preference definition unit output to the user for new program.
Alternatively, the preference definition unit obtains watching record of user from the watching record of user database, and according to user in the continuous period different sections basic time watch the probability of program and the user watches program basic time section near the degree of current time, calculate preference weight and form the first weight array, it is one-dimension array, is designated as different sections basic time down; The preference definition unit sorts by size to described the first weight array.
Preferably, also comprise a time window division unit in the preference definition unit, be used for to be divided into the some time window continuous period, each time window comprise at least one complete basic time section cycle, the time window division unit is to close on the higher relative importance value of time window setting of current time by the degree near the current time, the degree of watching section basic time of program to close on the current time to quantize the user.
Alternatively, programme information also comprises the type of program, the preference definition unit watches the probability of program, section basic time that the user watches program to close on the degree that the degree of current time, user watch the probability of certain type program and section basic time that the user watches the type program to close on the current time in different sections basic time according to user in the continuous period in different sections basic time, calculate preference weight and form the second weight array, it is that two-dimensional array, subscript are respectively different basic time of section and the type of program; The preference definition unit sorts by size to this second weight array; Recommendation unit is according to the type of the ranking results of preference definition unit and new program, for this new program to the IPTV terminal use recommend weight high basic time section for watching.
Preferably, also comprise a time window division unit in the preference definition unit, be used for to be divided into the some time window continuous period, each described time window comprise at least one complete basic time section cycle, the time window division unit is to close on the higher relative importance value of time window setting of current time by the degree near the current time, the degree of watching section basic time of program to close on the current time to quantize the user.
Preferably, in week one day of Duan Weiyi basic time, its cycle is a week.
Preferably, time window is one month, and be half a year period continuously.
The invention also discloses a kind of IPTV terminal, with the IPTV network connection, comprise the above-mentioned programs recommended device of IPTV terminal use that is, it watches the preference weight of program to recommend the IPTV program to the user according to the user in difference section basic time.
The invention also discloses a kind of for the programs recommended method of IPTV terminal use, the section and programme information basic time of comprise the steps: a), recording user being watched program; B), definition and calculate the user in the different preference weight that basic time, section was watched program, again it is sorted by size; C), for new program for the user recommend preference weight high basic time section for watching.
Provided by the invention is the programs recommended device and method of IPTV terminal use, defines and calculate the user watches program in different sections basic time preference weight, recommends high section basic time of preference weight to watch for new program to the user; Expand the function of IPTV business in the Extraordinary mode, improved user's experience sense and satisfaction.
Description of drawings
Fig. 1 illustrates the structural representation for the programs recommended device of IPTV terminal use that one embodiment of the invention provides;
Fig. 2 illustrates the present invention one and improves the structural representation for the programs recommended device of IPTV terminal use that embodiment provides;
Fig. 3 illustrates the schematic diagram of a time window in one embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
As shown in Figure 1, disclosed by the invention a kind of be the programs recommended device of IPTV terminal use 1, be used for section basic time to IPTV terminal 2 that proposes to watch programs, this device comprises: watching record of user database 11, preference definition unit 12 and recommendation unit 13.
Watching record of user database 11 is used for the programme information that recording user is watched program, and this programme information comprises that at least the user watches section basic time of program; Preference definition unit 12 obtains watching record of user from watching record of user database 11, and definition is also calculated the user in the different preference weight that basic time, section was watched program, sorts by size again; Recommendation unit 13 recommends preference weight high basic time section to watch according to the weight ranking results of preference definition unit 12 outputs to the user for new program.
According to embodiments of the invention, in week one day of Duan Weiyi basic time, its cycle is a week, namely 7 days.Basic time, section also can be less chronomere, and such as the morning, afternoon and evening in one day, its cycle is one day.
This device has defined IPTV terminal 2 and has watched the method for expressing of the preference weight of program, further calculate the user in the different preference weight that basic time, section was watched program, and recommend high section basic time of weight to watch for new program to the user, expand the function of IPTV business in the Extraordinary mode, improved user's experience sense and satisfaction.
More specifically, watching record of user database 11 can generate according to IPTV program request daily record; Preference definition unit 12 obtains watching record of user from watching record of user database 11, at first calculate within continuous period user watches program in different sections basic time probability.
For example, continuously be half a year period, and IPTV terminal 2 is watched the N that adds up to of program (approximately to have comprised about 26 weeks) within this half a year, this on Monday basic time section watch the N that adds up to of program
Mon, then within this continuous period the user this on Monday basic time section to watch the probability of program be N
Mon/ N.Similarly, suppose the user this on Saturday basic time section watch the N that adds up to of program
Sat, then within this continuous period the user this on Saturday basic time section to watch the probability of program be N
Sat/ N.
Preference definition unit 12 has also been introduced the user and has been watched section basic time of program to close on this factor of degree of current time when calculating above-mentioned preference weight.According to the abovementioned embodiments of the present invention, the user watches the preference weight of program to form the first weight array in different sections basic time, and it is one-dimension array, is designated as different sections basic time down, also is a day in the week.Preference definition unit 12 also sorts by size to the ownership heavy element in this first weight array.
As shown in Figure 2, improve embodiment according to of the present invention one, for specifically quantizing the degree that the user watches section basic time of program to close on the current time, also comprise a time window division unit 121 in the preference definition unit 12 of said apparatus of the present invention, it will be divided into the some time window above-mentioned continuous period, each time window comprise at least one complete basic time section cycle, namely at least one all 7 days; Time window division unit 121 is to close on the higher relative importance value of time window setting of current time by the degree near the current time.
Under the preferable case, time window is one month, and be half a year period continuously; Also can be defined as period continuously from IPTV terminal 2 and open the IPTV service until current time in this period, time window can be 1 month or 2 months.
In a time window, approximately comprised 30 basic time section, the preference definition unit 12 of said apparatus of the present invention is when calculating preference weight, need to obtain the record that user in this time window watches program from watching record of user database 11, it has recorded at least the user and has watched which program a basic time in the section.Fig. 3 shows the schematic diagram of a time window in one embodiment of the invention, for simplicity, only shows from June 1 to June the record of watching of user in section on 11 this in this time window in June on several basic time.
The relative importance value computing formula of time window is:
Win?Weight(index)＝e-
(γ.WinSize.(index-1)/(now-earlist))。
In the following formula, index is the numbering of time window, and the time window nearest apart from the current time is numbered 1, and the rest may be inferred.According to preferred implementation of the present invention, be half a year (namely 6 months) period continuously, time window is 1 month, its comprised at least 4 basic time section cycle, the time window nearest apart from the current time is numbered 1, inferior near time window is numbered 2, and time window farthest is numbered 6.The relative importance value of corresponding time window calculates and is undertaken by top formula: wherein WinSize be time window comprise basic time section number, as it is one month namely 30 days, γ is for adjusting coefficient (get generally speaking 2 effect better), and now and earlist are respectively the time that current time and user watch program the earliest.Adopt above-mentioned relative importance value computing formula, time window is higher apart from nearlyer then relative importance value of current time, otherwise relative importance value can be lower.
Above-mentioned according to the present invention is the another modified embodiment of the programs recommended device of IPTV terminal use, and programme information comprises that also IPTV terminal 2 watches the type of program, such as types such as action movie, romance movie, variety show and sports casts.In this modified embodiment, for the structure of the programs recommended device of IPTV terminal is identical with accompanying drawing 1, therefore do not illustrate with accompanying drawing separately.
At this moment, record is divided by different program categories in the watching record of user database 11; Preference definition unit 12 is counting user section is watched in each basic time action movie quantity, romance movie quantity, variety show quantity and sports cast quantity etc. respectively, watch again the total quantity of program divided by the user, can obtain the user watches certain type program in different sections basic time probability.
According to this embodiment, to basic time of IPTV terminal use that proposes to watch program during section, considered emphatically the user different basic time section to the preference of dissimilar program, thereby strengthened the individualized feature of recommendation function, further improved user's experience sense and satisfaction.
Preference definition unit 12 watches the probability of program, section basic time that the user watches program to close on the degree that the degree of current time, user watch the probability of certain type program and section basic time that the user watches the type program to close on the current time in different sections basic time according to user in the continuous period in different sections basic time, calculate preference weight and form the second weight array, it is that two-dimensional array, subscript are respectively different basic time of section and the type of program; 12 pairs of these the second weight arrays of preference definition unit sort by size; Subsequently, recommendation unit 13 is according to the type of the ranking results of preference definition unit 12 and new program, for this new program to IPTV terminal 2 recommend weights high basic time section for watching.
Under the preferable case, in week one day of Duan Weiyi basic time, its cycle is a week.
Similarly, also comprise a time window division unit 121 in the preference definition unit 12, be used for and be divided into the some time window continuous period, each time window comprise at least one complete basic time section i.e. week in cycle, time window division unit 121 is to close on the higher relative importance value of time window setting of current time by the degree near the current time, the degree of watching section basic time of program to close on the current time to quantize described user.
The computing formula of relative importance value is similarly:
Win?Weight(index)＝e
-(γ.WinSize.(index-1)/(now-earlist))。
In the following formula, index is the numbering of time window, and the time window nearest apart from the current time is numbered 1, and the rest may be inferred; WinSize be time window comprise basic time section number; γ is for adjusting coefficient (get generally speaking 2 effect better), and now and earlist are respectively the time that current time and user watch program the earliest.
Under the preferable case, time window is one month, and be half a year period continuously; Also can be defined as period continuously from IPTV terminal 2 and open the IPTV service until current time in this period, time window can be 1 month or 2 months.
More specifically, preference definition unit 12 comprises the first weight calculation unit, the second weight calculation unit and weight sequencing unit, the first weight calculation unit at first calling and obtaining user is watched database of record 11, with user in continuous time different basic time section the probability of watching program as the first weight factor, with user in this continuous period different basic time section the probability of watching certain type program as the second weight factor; The second weight calculation unit calling and obtaining user is watched database of record 11, search out a user watches certain type program in the time window near the current time record, record the numbering of this time window, the user is at the probability of watching program of different basic time of section in this time window in calculating, and the relative importance value corresponding with this time window multiplies each other as the 3rd weight factor; The second weight calculation unit calculating user in this time window watches the probability of certain type program in different sections basic time, and the relative importance value corresponding with this time window multiplies each other as the 4th weight factor; The weight sequencing unit multiplies each other the first, second, third and the 4th weight factor and forms the second weight array and it is sorted by size.
According to one embodiment of the present invention, a kind of IPTV terminal, it has comprised the above-mentioned programs recommended device of IPTV terminal use that is, this IPTV terminal and IPTV network connection, and it watches the preference weight of program to recommend the IPTV program to the user according to the terminal use in difference section basic time.Can adopt B/S (Browse/Server) or C/S (Client/Server) framework between the server that IPTV terminal and IPTV service provider set up.
In addition, disclosed by the invention is the programs recommended method of IPTV terminal use, comprises the steps:
A), record IPTV terminal use watches the programme information of program;
B), definition and calculate the user in the different preference weight that basic time, section was watched program, again it is sorted by size;
C), for new program for the user recommend preference weight high basic time section for watching.
As a kind of improvement project, above-mentioned steps b) in specifically comprise the steps: again
B1), an IPTV terminal use is watched the continuous period of program and be divided into the some time window, this time window comprises complete section cycle basic time at least, and for each time window a higher relative importance value is set by the degree near the current time, the degree of watching section basic time of program to close on the current time to quantize the user;
B2), divide the type of program, watch the probability of program, section basic time that the user watches program to close on the degree that the degree of current time, user watch the probability of certain type program and section basic time that the user watches the type program to close on the current time in different sections basic time according to the user in different sections basic time, calculate the user and watch the preference weight of program and form a weight array;
B3), above-mentioned weight array is sorted by size.
In above-mentioned steps, the relative importance value computing formula of time window, the division of program category, user are all identical with embodiment in the foregoing device programs recommended for the IPTV terminal use at probability etc. that different sections basic time is watched program.
Above-mentioned according to one embodiment of the invention is the programs recommended method of IPTV terminal use, and it specifically comprises the steps:
(1), extracts user's program viewing daily record and all program categories;
(2), watch daily record to divide by following dual mode to this user: 1., by basic time section divide, 2., by basic time section and program category divide;
(3), for the daily record data that section is divided by basic time, calculate the weight that under each section user watches number of programs basic time;
(4), for simultaneously by the daily record data that basic time, section and program category were divided, calculate the weight that under each section and program category user watches number of programs basic time;
(5), user's program viewing daily record carried out the division of time window, and every record in the program viewing daily record is mapped under each time window;
(6), calculate the weight size of each time window;
(7), under the current time window, watch daily record to carry out division as step (2) to the user;
(8), to the daily record data after dividing under the time window, carry out associated weight calculating by step (3) and (4) equally;
(9), with each multiplied by weight of different program categories under each section, to define the user in the different preference weight that basic time, section was watched program basic time;
(10), watch the preference weight of program to sort by size to the user in difference section basic time;
(11), for new program for the user recommend preference weight high basic time section for watching.
Obviously, the present invention can recommend a highest program of preference weight to the IPTV terminal use, also can recommend the high program of several preference weight for user selection to the user.
Above-described only is the preferred embodiments of the present invention; described embodiment limits scope of patent protection of the present invention; therefore the equivalent structure done of every utilization specification of the present invention and accompanying drawing content changes, and in like manner all should be included in protection scope of the present invention.
Claims (11)
1. one kind is the programs recommended device of IPTV terminal use, be used for section basic time to the new program of IPTV terminal use that proposes to watch, described basic time, section had periodically, and this device comprises: watching record of user database, preference definition unit and recommendation unit;
Wherein, described watching record of user database is used for the programme information that recording user is watched program, and this programme information comprises that the user watches section basic time of program;
Described preference definition unit obtains watching record of user from described watching record of user database, and definition is also calculated the user in the different preference weight that basic time, section was watched program, sorts by size again;
Described recommendation unit recommends preference weight high basic time section to watch according to the weight ranking results of preference definition unit to the user for described new program.
2. as claimed in claim 1 is the programs recommended device of IPTV terminal use, it is characterized in that, described preference definition unit obtains watching record of user from described watching record of user database, and the degree of watching the probability of program and section basic time that the user watches program to close on the current time in different sections basic time according to user in the continuous period, calculate described preference weight and form the first weight array, it is one-dimension array, is designated as described different section basic time down; Described preference definition unit sorts by size to described the first weight array.
3. as claimed in claim 2 is the programs recommended device of IPTV terminal use, it is characterized in that, also comprise a time window division unit in the described preference definition unit, be used for and be divided into the some time window described continuous period, each described time window comprise at least one complete basic time section cycle, described time window division unit is to close on the higher relative importance value of time window setting of current time by the degree near the current time, the degree of watching section basic time of program to close on the current time to quantize described user.
4. as claimed in claim 1 is the programs recommended device of IPTV terminal use, it is characterized in that, described programme information also comprises the type of program, described preference definition unit is watched the probability of program in different sections basic time according to user in the continuous period, the degree that the user watches section basic time of program to close on the current time, the degree that the user watches the probability of certain type program and section basic time that the user watches the type program to close on the current time in different sections basic time, calculate described preference weight and form the second weight array, it is two-dimensional array, subscript is respectively described different basic time of section and the type of program; Described preference definition unit sorts by size to described the second weight array;
Described recommendation unit is according to the type of the ranking results of described preference definition unit and new program, for this new program to the IPTV terminal use recommend weight high basic time section for watching.
5. as claimed in claim 4 is the programs recommended device of IPTV terminal use, it is characterized in that, also comprise a time window division unit in the described preference definition unit, be used for and be divided into the some time window described continuous period, each described time window comprise at least one complete basic time section cycle, described time window division unit is to close on the higher relative importance value of time window setting of current time by the degree near the current time, the degree of watching section basic time of program to close on the current time to quantize described user.
6. as claimed in claim 5 is the programs recommended device of IPTV terminal use, it is characterized in that, described preference definition unit comprises the first weight calculation unit, the second weight calculation unit and weight sequencing unit, described the first weight calculation unit is at first transferred described watching record of user database, with this user in described continuous time different basic time section the probability of watching program as the first weight factor, with user in this continuous period different basic time section the probability of watching certain type program as the second weight factor; Described the second weight calculation unit is transferred described watching record of user database, search out this user watches certain type program in the time window near the current time record, calculating in this corresponding time window the user at the probability of watching program of different basic time of section, and multiply each other as the 3rd weight factor with the relative importance value of this time window, calculating this user in this time window watches the probability of certain type program in different sections basic time, and multiplies each other as the 4th weight factor with the relative importance value of this time window; Described weight sequencing unit multiplies each other the described first, second, third and the 4th weight factor and forms described the second weight array and it is sorted by size.
As in the claim 1 to 6 each described be the programs recommended device of IPTV terminal use, it is characterized in that, in week one day of described basic time of Duan Weiyi, its cycle is a week.
As claim 3,5 or 6 described be the programs recommended device of IPTV terminal use, it is characterized in that, described time window is one month, be half a year described continuous period.
9. an IPTV terminal with the IPTV network connection, comprises the programs recommended device of IPTV terminal use that is as claimed in claim 1, and it watches the preference weight of program to recommend the IPTV program to the user according to the user in difference section basic time.
10. one kind is the programs recommended method of IPTV terminal use, comprises the steps:
A), recording user is watched the section and programme information basic time of program;
B), definition and calculate the user in the different preference weight that basic time, section was watched program, again it is sorted by size;
C), for new program for the user recommend preference weight high basic time section for watching.
11. as claimed in claim 10 is the programs recommended method of IPTV terminal use, it is characterized in that described step b) in specifically comprise:
B1), one section user is watched the continuous period of program and be divided into the some time window, this time window comprises complete section cycle basic time at least, and for each time window a higher relative importance value is set by the degree near the current time, the degree of watching section basic time of program to close on the current time to quantize the user;
B2), divide the type of program, watch the probability of program, section basic time that the user watches program to close on the degree that the degree of current time, user watch the probability of certain type program and section basic time that the user watches the type program to close on the current time in different sections basic time according to the user in different sections basic time, calculate the user and watch the preference weight of program and form a weight array;
B3), described weight array is sorted by size.
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