KR20170019944A - Method and device for recommendation service of product using relative comparison - Google Patents
Method and device for recommendation service of product using relative comparison Download PDFInfo
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Abstract
Description
The present invention relates to a product recommendation service method and a recommendation service apparatus for the same, and more particularly, to a recommendation service apparatus for recommending a product by a relative comparison, And recommends a product on the basis of a ranking of a product determined by a user with a similar taste by judging a user with a similar taste through comparison.
A wealth of information is being shared on the Internet, and a user selects a product based on evaluation or recommendation of a product experienced or possessed by another person in a variety of information.
For example, when a product is searched on a search service, an evaluation or recommendation of various products is exposed as a result of the search, and the user selects a product suitable for him based on such information.
However, due to the abuse of such situation, the reliability of the evaluation and recommendation of the product is lowered due to the presence of the information of advertisement, and furthermore, each person has different personality and accordingly, the preference for the preferred product is different accordingly, There is a problem in that when a product is selected according to recommendation, a product that is not suitable for its taste is actually selected.
In addition, a method of recommending a product by displaying a rating of a product as a star number is applied in most cases. In the case of an evaluation using a star number, a user evaluates the feeling of only one product in a situation in which there is no comparison There is a limitation in that it is difficult to consistently evaluate a plurality of evaluations because the same impression is reflected differently at the same time even though the same user evaluates the same product and there is a problem that comparison is impossible between products having the same number of stars .
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to solve the problem that the reliability of evaluation or recommendation of a product presented on the Internet is low due to advertisement information or the like.
Particularly, since each person has different personality, the preference for the preferred product differs accordingly, so that the user can trust the evaluation or recommendation of the product, so that when the product is selected, the product which is not suitable for his / .
Further, in the case of the evaluation of the product using the number of stars, there is a limitation that it is difficult to consistently evaluate the same user even though the same user evaluates the same product, and there is a problem that comparison is not possible between products having the same number of stars. And to provide recommended services that can be comparatively evaluated.
According to an aspect of the present invention, there is provided a product recommendation service method, a product recommendation service method, and a product recommendation method for setting a ranking of a product for each user based on a user's preference item selection based on a relative comparison of a plurality of products, Ranking setting step; A similar-taste user determining step of comparing a ranking of a product set by a specific user with a ranking of a product set by one or more other users to determine another user having similar taste to the specific user; And a product recommendation step of recommending the product to the specific user based on the ranking of the product set by another user having a similar taste to the specific user.
Preferably, the merchandise ranking setting step includes: a merchandise list generating step of receiving a plurality of merchandise information from the user and generating a merchandise list; And setting a ranking for the plurality of products based on the user's preference item selection through a relative comparison based on the preference of the user for the plurality of goods included in the goods list, And a product ranking list generation step of generating a product ranking list.
Here, the product ranking list generation step may set ranking by listing sequential sequences for each of the plurality of products.
Further, the similar taste user determining step may include: a product recommendation request step of requesting a product recommendation from a specific user among the plurality of users; A similarity degree calculating step of comparing the commodity ranking list corresponding to the specific user with a commodity ranking list corresponding to at least one of the plurality of users to calculate the similarity degree; And a similar-taste user selecting step of determining one or more other users having a similar taste to the specific user among the one or more other users based on the similarity.
Preferably, the similarity calculating step may include: extracting a product ranking list corresponding to one or more other users whose products included in the product ranking list corresponding to the specific user include the predetermined reference number or more, It is possible to calculate the similarity by cross-comparing the product ranking list corresponding to the extracted user and the product ranking list corresponding to the extracted other user.
Here, the ranking is set by listing the sequential sequences for each of the plurality of products, and the degree of similarity calculating step includes calculating a degree of similarity based on a product ranking list corresponding to the specific user and a product ranking list Classifying a plurality of goods into a plurality of groups according to a sequential sequence order; Comparing the group of the product ranking list corresponding to the specific user with the group of the product ranking list corresponding to the different user on a group basis and comparing the similarity of the other user with respect to the specific user on the basis of the number of the same goods, And a step of calculating the number of steps.
Preferably, the commodity recommending step may include: a list extracting step of extracting a commodity ranking list corresponding to the specific user and a commodity ranking list corresponding to the selected at least one similar favorite user; A new product extracting step of extracting a new product from a product ranking list corresponding to the similar-taste user, the product not included in the product ranking list corresponding to the specific user; A recommended product determination step of determining a recommended product based on a ranking of a new product set by the like user; And a recommendation information providing step of providing recommendation information including the recommendation product to the specific user.
For example, the list extracting step extracts a product ranking list corresponding to a similar-taste user having the highest similarity to the specific user, and the recommendation product determination step may include: ranking the new products in the highest ranking, New products can be selected as recommended products in ascending order.
As another example, the list extracting step extracts a product ranking list corresponding to a similar-taste user up to a predetermined number of degrees of similarity to the specific user, and the recommendation product determination step determines, for each new product, The recommendation score may be calculated based on the similarity degree of the liking taste user and the ranking set by the similar taste user, and the new article may be selected as the recommendation article based on the recommendation score.
In addition, the recommendation service apparatus according to the present invention includes: a ranking setting unit that sets a ranking for a product for each user based on the user's preference item selection through relative comparison of a plurality of items according to a taste of each of the plurality of users; A similar user judging unit for comparing a ranking of a product set by a specific user with a ranking of a product set by one or more other users and judging another user having a similar taste to the specific user; And a product recommendation unit for recommending the product to the specific user based on a ranking of the product set by another user having a similar taste to the specific user.
Preferably, the ranking setting unit generates a plurality of user-specific product lists, sets a ranking for the products on the product list based on the user's preference item selection based on relative comparison according to each user's taste, Wherein the similar user determination unit compares a product ranking list corresponding to a specific user who has requested a product recommendation with a product ranking list corresponding to another user to determine a similarity degree of the other user with respect to the specific user And judges a similar-taste user for the specific user on the basis of the degree of similarity, and the product recommendation unit judges whether or not a product that is not included in the product ranking list corresponding to the specific user in the product ranking list corresponding to the similar- Extracts a new product, It is possible to determine the recommended product based on the ranking of the new product set by the user.
The recommendation service apparatus according to the present invention may be a device in which a computer program for performing each step of the product recommendation service method according to the present invention is recorded.
According to the present invention as described above, a commodity recommendation that can be satisfied by a user can be made by recommending a commodity based on an evaluation of a commodity set by another user similar in taste to the user.
In addition, since the product is recommended by synthesizing the evaluation of a user who requests a product recommendation and a plurality of other users having a similar taste, it is possible to exclude the advertisement information and the like, thereby enhancing the reliability of the recommendation.
In addition, by overcoming the limitations of the simple evaluation of a product using the number of stars, the user can more effectively select a product by recommendation through comparison evaluation among a plurality of products.
1 shows an embodiment of a recommended service system for providing a product recommendation service according to the present invention,
2 is a block diagram of an embodiment of a recommendation service apparatus for providing a product recommendation service according to the present invention,
FIG. 3 shows a schematic flow chart of an embodiment of a product recommendation service method through relative comparison according to the present invention,
4 shows an embodiment of a merchandise ranking setting process in the recommendation service method according to the present invention,
FIG. 5 shows an embodiment of a similar taste user judgment process in the recommendation service method according to the present invention,
6 shows an embodiment of a product recommendation process in the recommendation service method according to the present invention,
FIG. 7 shows an embodiment of recommended product information in the recommendation service method according to the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS The above and other objects, features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.
First, the terminology used in the present application is used only to describe a specific embodiment, and is not intended to limit the present invention, and the singular expressions may include plural expressions unless the context clearly indicates otherwise. Also, in this application, the terms "comprise", "having", and the like are intended to specify that there are stated features, integers, steps, operations, elements, parts or combinations thereof, But do not preclude the presence or addition of features, numbers, steps, operations, components, parts, or combinations thereof.
In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.
The present invention is characterized in that a user sets a ranking of a product through relative comparison according to his / her preference, judges a similar-like user through cross-comparison of rankings of products among users, Suggest ways to recommend products.
In the present invention, a commodity to be applied to a recommendation service may be a form or an intangible information. For example, it may include various items such as a smart phone and a car, and may include a place such as a restaurant or a café , And may also include content such as movies and music.
FIG. 1 shows an embodiment of a recommended service system for providing a product recommendation service according to the present invention.
The
A plurality of
The user can be connected to the recommended
The
FIG. 2 shows a configuration diagram of an embodiment of a recommendation service apparatus for providing a product recommendation service according to the present invention.
The
The ranking
Preferably, the product ranking list generated by the
The similar
The
The
A recommendation service apparatus according to the present invention can provide a recommendation service through relative comparison in consideration of a user's taste. A method of providing a recommendation service through a relative comparison according to the present invention is described in .
FIG. 3 shows a schematic flow chart of an embodiment of a method for recommending goods through relative comparison according to the present invention.
Since the product recommendation service method according to the present invention is implemented in the recommendation service apparatus according to the present invention, the recommendation service apparatus will be referred to together.
The recommendation service method according to the present invention includes: a merchandise ranking setting process (S100) for setting a ranking of a merchandise through relative comparison according to a user's taste; A similar taste user judgment process (S200) of judging one or more other users having a taste similar to that of the specific user by cross-comparing the ranking of the product determined by the specific user requesting the recommended service and the rank of the product determined by the other user; And a product recommendation step (S300) of recommending the product to the specific user based on the ranking of the product determined by another user of similar taste.
Each of the above-described steps of the recommendation service method according to the present invention will be described in more detail with reference to the following detailed embodiments.
First, the merchandise ranking setting process (S100) will be described with reference to FIG. 3, with reference to the embodiment of the merchandise ranking setting process in the recommendation service method according to the present invention shown in FIG.
First, the
The
As shown in FIG. 4B, when the user A selects the restaurant 1 (221) and the restaurant 2 (223) on the
The
In the product ranking setting process S100, a ranking is set for a product through a relative comparison among the products according to a user's taste, and a product ranking setting process S100 is repeatedly performed for each of a plurality of users, A user-specific item ranking list for each user can be generated.
The user-specific merchandise ranking list generated as described above may be stored in the
Further, the user may update the overall product ranking list by adjusting the preference selection of the product according to the re-experience of the existing product existing in the product ranking list, or may update the ranking of the newly- It is also possible to update the product ranking list by newly adding to the ranking list.
Second, a similar-taste user determination process (S200) will be described with reference to FIG. 3 and an embodiment of a similar-taste user determination process in the recommended service method according to the present invention shown in FIG.
The similar
For example, as shown in (a) of FIG. 5, a
At this time, the degree of similarity may be calculated by considering only the restaurant ranking list including the same number of products as the products included in the merchandise ranking list corresponding to the user A among the users B to N.
Referring to the example shown in FIG. 5 (b), a restaurant ranking list in which a ranking is set by an ordered list of a plurality of restaurants, a plurality In FIG. 5B, the restaurants included in the restaurant ranking list corresponding to the user A are classified into groups (320a, 330a) by 10 in the sequence order, and similarly, The restaurants included in the ranking list were also classified into groups (320b, 330b) by ten.
The degree of similarity of the user B with respect to the user A is calculated through cross-comparison between the user A and the user B requesting restaurant recommendation by the restaurant group included in the restaurant ranking list. The
A
Also, as an opposite taste between the user A and the user B, the
The similarity of the user B to the user A is calculated on the basis of the comparison. Likewise, the restaurant belonging to the upper ranking group has a high likelihood that the user A and the user B have similar tastes. The same weighting is applied to the number of restaurants, and a restaurant belonging to a lower ranking group has the possibility that the taste of the user A and the user B are similar to each other. Therefore, an intermediate weight is applied to the number of restaurants belonging to the lower ranking group , And a restaurant belonging to the opposite ranking group means that there is a possibility that the taste of the user A and the user B may be different. Therefore, a similar weight is calculated by applying a lower weight.
As an example, the similarity degree of the user B to the user A can be calculated by the following equation (1).
S AB = (α × H + β × L + γ × R) / T; (?>?>?) [Formula 1]
Here, S AB is the similarity degree of the user B to the user A, α is the weight value of the commodity that belongs to the same upper ranking group, β is the weight value of the commodity belonging to the lower ranking group, L is the number of products belonging to the same rank in the lower ranking group, R is the number of the products belonging to the opposite ranking group, T is the number of the products belonging to the same ranking group, Represents the number of products obtained by adding the above H, L and R.
This process is repeatedly performed to calculate the degree of similarity of the user A to the user N after the user B shown in FIG. 5 (a).
Then, another user having a high degree of similarity with respect to the user A is selected. At this time, only one other user having the highest degree of similarity may be selected, or a plurality of other users having similarity to predetermined values may be selected.
Third, the product recommendation process (S300) will be described with reference to FIG. 3 and an embodiment of the product recommendation process in the recommendation service method according to the present invention shown in FIG.
If at least one similar taste user having similar taste to a specific user who has requested a product recommendation is selected through the similar taste user determination process (S200), the
Next, the
Then, the
If only one other user with the highest similarity degree to the specific user who has requested the product recommendation is selected as the similar-taste user, a new product is extracted from the ranking list corresponding to one similar-taste user, A new product is selected as a recommended product in the order of products or a predetermined number of ranking ascending order.
Furthermore, a case in which a plurality of other users up to a preset number of similarities are selected as similar-taste users will be described with reference to the embodiment shown in FIG.
FIG. 6 is an example of extracting a recommended restaurant based on the restaurant ranking setting of a plurality of similar-taste users in connection with the restaurant recommendation.
First, the user A and the user B, the user D selected as a similar-taste user, ... A restaurant ranking list corresponding to the user C is extracted and a restaurant not included in the restaurant ranking list corresponding to the user A is extracted as a new restaurant on each restaurant ranking list, And creates a new restaurant table 410 in which new restaurants corresponding to each similar-taste user are arranged in order. In FIG. 6, the portion denoted by X is a restaurant included on the restaurant ranking list corresponding to the user A, and is a portion excluded from the new restaurant.
Based on the new restaurant table 410, the recommendation score is calculated on the basis of the similarity degree of the similar taste user and the ranking set by the similar taste user. In the case of the restaurant 3 (411, 413) , The ranking set by the user B having the highest degree of similarity is ranked second, and the ranking set by the user D having the second highest degree of similarity is ranked first, so that the recommendation score is calculated to be high. In the case of the restaurant 6 (415, 417), since the ranking set by the user B having the highest similarity degree is the third and the ranking set by the user C having the lowest similarity degree is the first rank, .
As an example, a recommendation score for a new product can be calculated by the following equation (2).
[Formula 2]
Here, SCORE is the recommendation score for the new product, M is the total number of similar-taste users who set the ranking for the new product, SI is the similarity level of the i-th like taste user, and Rank is the i- Is a ranking set for the new product, and k is a weight that is set as needed.
As described above, each recommendation score is calculated for each new product, and a product to be recommended is selected based on the calculated recommendation score. Only one new product having the highest recommendation score may be selected as a recommendation item, A number of new products may be selected as recommended products up to the higher order.
When the recommended product is selected, the
According to the present invention as described above, a product recommendation can be made satisfactory to a user by recommending a product based on an evaluation of a product set by another user similar in taste to the user.
In addition, since the product is recommended by synthesizing the evaluation of a user who requests a product recommendation and a plurality of other users having a similar taste, it is possible to exclude the advertisement information and the like, thereby enhancing the reliability of the recommendation.
In addition, by overcoming the limitations of the simple evaluation of a product using the number of stars, the user can more effectively select a product by recommendation through comparison evaluation among a plurality of products.
The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments of the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents thereof should be construed as being included in the scope of the present invention.
10a, 10b, ... 10n: user,
30: Network,
50: Search service server,
100: Recommended service devices,
110: Ranking setting unit,
130: Pseudo user judgment unit,
150: Product recommendation department,
170: User information DB.
Claims (12)
A similar-taste user determining step of comparing a ranking of a product set by a specific user with a ranking of a product set by one or more other users to determine another user having similar taste to the specific user; And
And recommending a product to the specific user based on a ranking of the product set by another user having a similar taste to the specific user.
Wherein the merchandise ranking setting step comprises:
A product list generating step of receiving a plurality of product information from the user and generating a product list; And
Setting a ranking for the plurality of products based on the user's preference selection of the plurality of products included in the product list through relative comparison according to the preference of the user, And a product ranking list generation step of generating a ranking list.
The merchandise ranking list generation step includes:
Wherein ranking is set by listing the sequential sequences for each of the plurality of products.
Wherein the similar taste user determination step comprises:
A product recommendation step of requesting a product recommendation from a specific user among the plurality of users;
A similarity degree calculating step of comparing the commodity ranking list corresponding to the specific user with a commodity ranking list corresponding to at least one of the plurality of users to calculate the similarity degree; And
And a similar-taste user selecting step of determining one or more other users having a taste similar to the specific user among the one or more other users based on the similarity.
Wherein the similarity calculating step comprises:
Extracting a product ranking list corresponding to one or more other users whose products are the same as the product included in the product ranking list corresponding to the specific user and including a predetermined reference number or more, Wherein the degree of similarity is calculated by cross-comparing the merchandise ranking list corresponding to the user.
Wherein the product ranking list is set to ranking by a sequence of sequential sequences for each of a plurality of products,
Wherein the similarity calculating step comprises:
Classifying a plurality of products into a plurality of groups in a sequential sequence order for each of a product ranking list corresponding to the specific user and a product ranking list corresponding to the other user;
Comparing the group of the product ranking list corresponding to the specific user with the group of the product ranking list corresponding to the different user on a group basis and comparing the similarity of the other user with respect to the specific user on the basis of the number of the same goods, And calculating the product recommendation service.
The product recommendation step may include:
A list extracting step of extracting a goods ranking list corresponding to the specific user and a goods ranking list corresponding to the selected one or more similar taste users;
A new product extracting step of extracting a new product from a product ranking list corresponding to the similar-taste user, the product not included in the product ranking list corresponding to the specific user;
A recommended product determination step of determining a recommended product based on a ranking of a new product set by the like user; And
And providing recommendation information including the recommended product to the specific user.
The list extracting step includes:
Extracting a product ranking list corresponding to a similar-taste user having the highest similarity to the specific user,
In the recommendation product determination step,
And the new product is selected as a recommended product in the order of the highest ranking new product or ranking up to the predetermined number.
The list extracting step includes:
Extracting a merchandise ranking list corresponding to a similar taste user up to a predetermined number of similarities for the specific user,
In the recommendation product determination step,
A recommendation score is calculated for each new product based on the degree of similarity of the similar-taste user and the ranking set by the similar-taste user, and a new product is selected as a recommendation product based on the recommendation score Recommended service method.
A similar user judging unit for comparing a ranking of a product set by a specific user with a ranking of a product set by one or more other users and judging another user having a similar taste to the specific user; And
And a product recommendation unit for recommending a product to the specific user based on a ranking of the product set by another user having a similar taste to the specific user.
The ranking setting unit,
Generating a plurality of user-specific product lists, setting up ranking for the products on the product list based on the user's preference product selection through relative comparison according to each user's preference to generate the per-user product ranking list,
The similar-
The similarity degree of the other user to the specific user is calculated by cross-comparing the product ranking list corresponding to the specific user requesting the product recommendation and the product ranking list corresponding to the other user, Judges a taste user,
The product recommendation unit,
Extracting a new commodity from the commodity ranking list corresponding to the similar preference user, the commodity not included in the commodity ranking list corresponding to the specific user, and selecting a recommendation commodity based on the ranking of the new commodity set by the similar- Wherein the recommendation service apparatus judges whether or not the recommendation service apparatus is operating.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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KR1020150114490A KR20170019944A (en) | 2015-08-13 | 2015-08-13 | Method and device for recommendation service of product using relative comparison |
JP2016079235A JP5992122B1 (en) | 2015-08-13 | 2016-04-12 | Product recommendation service method based on relative comparison, recommendation service device and program therefor |
KR1020160102309A KR101866514B1 (en) | 2015-08-13 | 2016-08-11 | Method for recommendation service of product using relative comparison, and device and program for the same |
JP2016158334A JP6087467B2 (en) | 2015-08-13 | 2016-08-11 | Product recommendation service method based on relative comparison, recommendation service device and program therefor |
PCT/KR2016/008915 WO2017026852A1 (en) | 2015-08-13 | 2016-08-12 | Method for service of recommending product through relative comparison, and recommendation service apparatus and program therefor |
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KR1020150114490A KR20170019944A (en) | 2015-08-13 | 2015-08-13 | Method and device for recommendation service of product using relative comparison |
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CN117635266A (en) * | 2023-12-01 | 2024-03-01 | 深圳市瀚力科技有限公司 | Platform optimization management system for commodity recommendation |
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CN109919650A (en) * | 2019-01-16 | 2019-06-21 | 深圳壹账通智能科技有限公司 | Multi-stage service promotes management method, device and storage medium, computer equipment |
KR102272063B1 (en) * | 2019-12-13 | 2021-07-02 | 임계수 | Apparatus and method for determinating taste similarity of users |
MY196302A (en) * | 2020-06-19 | 2023-03-24 | Panasonic Ip Man Co Ltd | Information Providing Method |
JP6910515B1 (en) * | 2020-07-31 | 2021-07-28 | PayPay株式会社 | Analytical instruments, analytical methods and analytical programs |
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CN117635266A (en) * | 2023-12-01 | 2024-03-01 | 深圳市瀚力科技有限公司 | Platform optimization management system for commodity recommendation |
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JP5992122B1 (en) | 2016-09-14 |
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JP2017037629A (en) | 2017-02-16 |
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JP6087467B2 (en) | 2017-03-01 |
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