WO2022224352A1 - 社会的価値評価装置、社会的価値評価方法、及びプログラム - Google Patents
社会的価値評価装置、社会的価値評価方法、及びプログラム Download PDFInfo
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- 238000010219 correlation analysis Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
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- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
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Definitions
- the present invention relates to technology for evaluating the social value of companies.
- an index of ESG investment stocks (called an ESG index) is generally used. and the details of evaluation criteria and processes are not disclosed. Also, due to the low update frequency, the correlation with the daily financial information of the company is not clear.
- the present invention has been made in view of the above points, and aims to provide a technique that makes it possible to evaluate the social value of a social value evaluation target in line with the actual state of its activities. aim.
- a feature quantity generation unit that generates a feature quantity from text information related to evaluation of social value; an input unit for inputting text information about an evaluation target; an evaluation unit that evaluates the relationship between the text information input by the input unit and the feature amount; and an output unit that outputs an evaluation result by the evaluation unit.
- a technology that makes it possible to evaluate social value in line with the actual state of the activity of a social value evaluation target.
- FIG. 1 is a configuration diagram of a social value evaluation device; FIG. It is a figure which shows the hardware structural example. It is a figure which shows the image of feature-value calculation. It is a flow chart of processing. It is a figure which shows the example of financial information.
- FIG. 4 is a diagram for explaining an output example; FIG. FIG. 4 is a diagram for explaining an output example; FIG. FIG. 4 is a diagram for explaining an output example; FIG. FIG. 4 is a diagram for explaining an output example; FIG. FIG. 4 is a diagram for explaining an output example; FIG. FIG. 4 is a diagram for explaining an output example; FIG.
- companies are assumed to be the evaluation target of social value, but the technology according to the present invention can be applied to cases other than companies as the evaluation target.
- the technology according to the present invention can be used to evaluate the social value of individuals, groups, countries, local governments, and the like.
- processing is performed on Japanese text, but this is just an example, and the technology according to the present invention can be applied to any language.
- MSCI ESG Research ESG Rating Methodology Summary For example, as disclosed in “MSCI (2017) MSCI ESG Research ESG Rating Methodology Summary", traditional ESG ratings first select and weight key issues in each industry, to score risk exposure and risk management for each company. A key issue score is obtained from these two scores.
- the weighted average score of each company is standardized to determine the Industry Adjusted Score, and the ESG score based on that is determined.
- the company's public information is used as the information source, and annual reports such as sustainability reports are used as public information.
- the social value evaluation device 100 solves the above-described problems, and can evaluate social value by accurately reflecting in real time the realities of corporate activities that change from moment to moment. .
- FIG. 1 shows an evaluation method according to the prior art.
- a rating company uses public information that is disclosed once a year, performs an evaluation in an unknown process, and publishes the evaluation results.
- the evaluation result is, for example, rating information such as "A + ".
- FIG. 2 is a diagram showing an outline of the operation of the social value assessment device 100 according to this embodiment.
- the feature generation module 130 calculates feature amounts related to social value from text information (a plurality of sentences) related to evaluation of social value read from the text DB 132 .
- the evaluation module 120 inputs text information including a plurality of sentences such as news, press, SNS, etc. acquired from the corporate non-financial DB, for example, and compares the text information with the feature amount generated by the feature generation module 130. Evaluate the relevance and output the evaluation result.
- This evaluation result is the evaluation result of the social value of the target company.
- the social value of a company that publishes text information that is highly relevant to features obtained from text information describing goals related to social value in the press, news, etc. as part of its daily activities is considered to be high. .
- the correlation calculation unit 140 inputs a plurality of indicators (eg, sales, profit, PBR, ROE, stock price, etc.) related to corporate finance from the financial DB 150, and uses these indicators (financial information) and the evaluation module 120 to Calculate the correlation with the evaluation result of the social value obtained, and output the calculation result.
- indicators eg, sales, profit, PBR, ROE, stock price, etc.
- evaluation result by the evaluation module 120 and the financial information may be output, for example, in chronological order so that the correlation between the two can be visually grasped.
- FIG. 3 shows an image of the output from the social value assessment device 100.
- it has "social value” and “financial value” as evaluation axes, and the time series of "social value 1", “social value 2", and “financial value” Changes are indicated.
- this kind of output it is possible to grasp “social value 1” and “social value 2", as well as the correlation between “social value 1"/"social value 2" and “financial value”. I can grasp it.
- FIG. 4 shows a detailed configuration example of the social value assessment device 100.
- the social value assessment device 100 has an input section 110 , an assessment module 120 , a feature generation module 130 , a correlation calculation section 140 , a financial DB 150 and an output section 160 .
- the evaluation module 120 has a text analysis unit 121 and an evaluation unit 122.
- the feature generation module 130 also has a feature storage unit 131 , a text DB 132 and a feature calculation unit 133 .
- the social value evaluation device 100 can be implemented by, for example, causing a computer to execute a program.
- This computer may be a physical computer or a virtual machine on the cloud.
- the social value assessment device 100 is realized by executing a program corresponding to the processing performed by the social value assessment device 100 using hardware resources such as a CPU and memory built into the computer. is possible.
- the above program can be recorded in a computer-readable recording medium (portable memory, etc.), saved, or distributed. It is also possible to provide the above program through a network such as the Internet or e-mail.
- FIG. 5 is a diagram showing a hardware configuration example of the computer.
- the computer of FIG. 5 has a drive device 1000, an auxiliary storage device 1002, a memory device 1003, a CPU 1004, an interface device 1005, a display device 1006, an input device 1007, an output device 1008, etc., which are interconnected by a bus BS.
- a program that implements the processing in the computer is provided by a recording medium 1001 such as a CD-ROM or memory card, for example.
- a recording medium 1001 such as a CD-ROM or memory card
- the program is installed from the recording medium 1001 to the auxiliary storage device 1002 via the drive device 1000 .
- the program does not necessarily need to be installed from the recording medium 1001, and may be downloaded from another computer via the network.
- the auxiliary storage device 1002 stores installed programs, as well as necessary files and data.
- the memory device 1003 reads and stores the program from the auxiliary storage device 1002 when a program activation instruction is received.
- the CPU 1004 implements functions related to the social value assessment device 100 according to programs stored in the memory device 1003 .
- the interface device 1005 is used as an interface for connecting to a network and functions as a transmitter and a receiver.
- a display device 1006 displays a GUI (Graphical User Interface) or the like by a program.
- An input device 1007 is composed of a keyboard, a mouse, buttons, a touch panel, or the like, and is used to input various operational instructions.
- the output device 1008 outputs the calculation result.
- feature values are generated from text information related to evaluation of social value and stored. This stage is called a feature generation phase.
- the stored feature amount is used to evaluate the social value of the evaluation target company. This stage is called the evaluation phase.
- the text DB 132 in the feature generation module 130 stores, for example, a plurality of sentences representing goals for activities that increase social value. Specifically, for example, 169 target sentences of SDGs are stored. Targets and goals may also be called indices of social value.
- the feature calculation unit 133 receives a plurality of sentences read from the text DB 132 and performs morphological analysis on each sentence. Keywords and the like can be obtained from the input text by morphological analysis. Any technique may be used for morphological analysis, for example, natural language processing techniques such as the Tf-idf method, co-occurrence analysis, and dependency analysis, and text mining techniques may be used. Morphological analysis tools such as Mecab, JUMAN, and ChaSen may also be used.
- arbitrary keywords may be set subjectively (manually).
- the feature calculation unit 133 generates 109 feature amounts consisting of multiple keywords from 169 target sentences of SDGs. Then, the feature calculation unit 133 uses pre-learned word embedding vectors such as word2Vec, GloVe, fastText, etc., from the feature amounts (which may be called “targets”) made up of a plurality of keywords to extract feature amounts made up of vectors. Generate. At that time, averaging, normalization, or the like may be appropriately performed among a plurality of keywords.
- Fig. 6 shows an image of generating a vector of feature values using word2Vec.
- a feature amount 200-dimensional vector, etc.
- word2Vec is obtained by word2Vec from one target feature amount consisting of three keywords of "safety”, “peace of mind”, and "healthy".
- the feature amount obtained by the feature calculation unit 133 is stored in the feature storage unit 131.
- the feature memory 131 stores a target feature amount (multiple keywords) and a feature amount (vector) obtained therefrom for each target.
- evaluation phase Next, an operation example of the social value assessment device 100 in the assessment phase will be described along the procedure shown in the flowchart of FIG.
- the order of processing shown in FIG. 7 is an example, and the processing may be performed in any order as long as the evaluation result can be calculated. Also, a plurality of processes may be executed in parallel.
- the input unit 110 inputs text information about the company to be evaluated.
- the text information is information obtained in real time about the company to be evaluated.
- the text information may be any text information related to the company to be evaluated, such as press, news release, SNS, and the like. In this embodiment, it is assumed that a news release of an evaluation target company provided by a PR company is input.
- the text analysis unit 121 in the evaluation module 120 performs text analysis on the text information (which may be called "sentence” or "document”) input in S101.
- the text analysis unit 121 performs morphological analysis on the input text, and uses one or more keywords obtained by the morphological analysis.
- a feature amount is generated using a word embedding vector or the like.
- the evaluation unit 122 calculates the relationship (specifically, similarity) between the feature amount obtained by the text analysis unit 121 and the feature amount read from the feature storage unit 131 .
- the evaluation unit 122 stores each of the 109 feature amounts and the text analysis unit 121 to calculate the degree of similarity with the feature quantity obtained by 121;
- any method can be used for similarity calculation as long as it can calculate the similarity between two pieces of information.
- cosine similarity can be used.
- the similarity between feature quantity x and feature quantity y can be calculated by the following formula.
- the evaluation unit 122 extracts an arbitrary number of keywords having a particularly high degree of similarity from the input text (news release) for each feature amount stored in the feature storage unit 131, and averages the similarity of the number of keywords. , a normalized numerical value, or the like can be used as the degree of similarity of the calculation result.
- the evaluation unit 122 may extract 10 keywords.
- the feature amounts of the 10 keywords are designated as feature amount 1, feature amount 2, . , feature quantity 9 and feature quantity 10, and the feature quantity corresponding to the specific target A stored in the feature storage unit 131 is assumed to be feature quantity A.
- similarity 2 between feature 2 and feature A, . , the similarity 9 between the feature quantity 9 and the feature quantity A, and the similarity 10 between the feature quantity 10 and the feature quantity A are calculated.
- the evaluation unit 122 calculates the average value, minimum value, and maximum value of 10 similarities 1 to 10 with respect to target A, and outputs these as the calculation results of the similarity with respect to target A. Note that such a calculation method is an example.
- the correlation calculation unit 140 calculates the correlation between the evaluation result obtained by the evaluation unit 122 and the financial information of the evaluation target company read from the financial DB 150 .
- the financial DB 150 stores, for example, information such as industry, sales, stock price, ROE, and PBR for various companies. For sales, stock price, ROE, PBR, etc., for example, information from the past to the present is stored as time-series data, and the latest information is always stored.
- FIG. 8 shows an example of information stored in the finance DB 50. As shown in FIG.
- the correlation coefficient between the similarity which is the evaluation result of social value, and financial information may be calculated.
- Correlation analysis makes it possible to find correlations such as, for example, when the degree of similarity to a certain target is high, the stock price is high.
- the output unit 160 outputs evaluation results.
- the output of the evaluation result may be, for example, a graphical display on a UI (user interface) screen, or may be output as a list of numerical values.
- another device may produce a graphical display from the numerical values.
- the output evaluation result may be the degree of similarity (eg, degree of similarity for each target) calculated by the evaluation module 120, or may be the degree of similarity and the financial information obtained from the financial DB 150. , the correlation value calculated by the correlation calculation unit 140, the similarity, correlation, and financial information, or information other than these.
- FIGS. 10 to 13 Output examples are shown in FIGS. 10 to 13. Note that these show a part of the output screen for convenience of illustration in the drawing.
- Figure 9 summarizes the 109 targets into 17 SDGs goals, and the average (Avg), maximum (Max), minimum (Min ) is displayed.
- Goal 1 to 17 are the goals of the SDGs, such as "Goal 1: End poverty in all its forms everywhere", as shown in the provisional translation of the Ministry of Internal Affairs and Communications' indicators.
- the title of the goal such as “1: Eliminate poverty” may be displayed.
- Goal numbers are shown in FIG. 9, but a goal title such as “1: Eliminate poverty” may be displayed for each goal number.
- the average value (Avg), maximum value (Max), and minimum value (Min) for each goal are shown like a table. , may be changed according to the magnitude of the value. For example, the higher the value, the darker the color.
- the average value is indicated by ⁇ in the horizontal position at the position corresponding to each goal (position in the height direction).
- the ratio of values in multiple similarities is displayed for each target number shown on the horizontal axis.
- the ratio ranges are distinguished by hatching, but they may be distinguished by different colors.
- the horizontal axis indicates the goal numbers corresponding to the multiple target numbers.
- the example of FIG. 11 shows annual changes in evaluation results for each target.
- evaluation results and financial information are displayed in chronological order.
- the social value evaluation apparatus 100 can extract various information from text information delivered daily, such as press, news releases, and SNS, regardless of public information such as company annual reports. It is possible to evaluate the social value of a company with respect to the evaluation axis.
- This specification discloses at least a social value assessment device, a social value assessment method, and a program for each of the following items.
- a feature quantity generation unit that generates a feature quantity from text information related to evaluation of social value; an input unit for inputting text information about an evaluation target; an evaluation unit that evaluates the relationship between the text information input by the input unit and the feature amount;
- a social value evaluation device comprising: an output unit that outputs an evaluation result obtained by the evaluation unit.
- the evaluation unit evaluates the relevance by calculating a similarity between the feature amount generated from the text information input by the input unit and the feature amount generated by the feature amount generation unit.
- the social value assessment device according to the item. (Section 3) 3.
- the social value evaluation device according to claim 1 or 2, further comprising: a correlation calculation unit that calculates a correlation between the evaluation result by the evaluation unit and the financial information to be evaluated.
- a correlation calculation unit that calculates a correlation between the evaluation result by the evaluation unit and the financial information to be evaluated.
- (Section 4) 4.
- the social value evaluation device according to any one of items 1 to 3, wherein the output unit outputs information indicating the evaluation result by the evaluation unit for each index of social value.
- (Section 5) 5.
- the social value evaluation device according to any one of items 1 to 4, wherein the output unit outputs information indicating the evaluation result by the evaluation unit and the financial information of the evaluation target in chronological order. .
- (Section 6) A social value evaluation method executed by a social value evaluation device, a feature quantity generation step of generating a feature quantity from text information related to evaluation of social value; an input step for entering textual information about the object to be evaluated; an evaluation step of evaluating the relevance between the text information input in the input step and the feature quantity; and an output step of outputting an evaluation result obtained by the evaluation step.
- (Section 7) A program for causing a computer to function as each part of the social value assessment apparatus according to any one of items 1 to 5.
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Abstract
Description
評価対象に関するテキスト情報を入力する入力部と、
前記入力部により入力されたテキスト情報と前記特徴量との関連性を評価する評価部と、
前記評価部による評価結果を出力する出力部と
を備える社会的価値評価装置が提供される。
前述したように、従来技術では、企業の社会的価値を評価する場合にESGインデックスが使用される場合が多い。しかし、ESGインデックスでは、時々刻々と変化する企業活動の実態に即しているのかどうか不確実である。まず、この点について、従来のESG格付け方法の例を挙げて説明する。
まず、社会的価値評価装置100の構成例を説明する。図4に、社会的価値評価装置100の詳細な構成例を示す。図4に示すように、社会的価値評価装置100は、入力部110、評価モジュール120、特徴生成モジュール130、相関計算部140、財務DB150、出力部160を有する。
社会的価値評価装置100は、例えば、コンピュータにプログラムを実行させることにより実現できる。このコンピュータは、物理的なコンピュータであってもよいし、クラウド上の仮想マシンであってもよい。
次に、社会的価値評価装置100の動作例を説明する。以下では、ある1つの企業("評価対象企業"と呼ぶ)についての社会的価値の評価を行うものとする。
特徴生成モジュール130におけるテキストDB132には、例えば、社会的価値を高める活動についての目標を表す複数の文章が格納されている。具体的には、例えば、SDGsの169のターゲット文章が格納されている。なお、ターゲットやゴールを社会的価値の指標と呼んでもよい。
次に、図7のフローチャートに示す手順に沿って、評価フェーズでの社会的価値評価装置100の動作例を説明する。なお、図7に示す処理の順番は一例であり、評価結果を計算できるのであればどのような順番で処理を行ってもよい。また、複数の処理を並列に実行してもよい。
S101(ステップ101)において、入力部110は、評価対象企業についてのテキスト情報を入力する。当該テキスト情報は、評価対象企業についてリアルタイムに得られる情報である。当該テキスト情報は、プレス、ニュースリリース、SNS等、評価対象企業に関するどのようなテキスト情報であってもよい。本実施例では、PR会社から提供される評価対象企業のニュースリリースを入力することを想定している。
S102において、評価モジュール120におけるテキスト解析部121が、S101で入力されたテキスト情報("文章"あるいは"文書"と呼んでもよい)に対するテキスト解析を実施する。
S103において、評価部122は、テキスト解析部121により得られた特徴量と、特徴記憶部131から読み出した特徴量との関連性(具体的には類似度)を計算する。
例えば、評価部122は、特徴記憶部131に記憶されている特徴量毎に、入力テキスト(ニュースリリース)から特に類似度が高いキーワードを任意の数で抽出し、その数の類似度の平均や、正規化処理した数値などを、計算結果の類似度とすることができる。
S104において、相関計算部140は、評価部122により得られた評価結果と、財務DB150から読み出した、評価対象企業の財務情報との間の相関性を計算する。
出力部160は、評価結果を出力する。評価結果の出力は、例えば、UI(ユーザインタフェース)の画面上にグラフィカルに表示することであってもよいし、数値の羅列を出力することであってもよい。数値の羅列を出力する場合、他の装置が当該数値からグラフィカルな表示を行ってもよい。
以上、説明したように、本実施の形態に係る社会的価値評価装置100により、例えば企業のアニュアルレポートなどの公開情報に関わらず、プレスやニュースリリースやSNSなど日々配信されるテキスト情報から、各種評価軸に対する企業の社会的価値を評価することができる。
本明細書には、少なくとも下記各項の社会的価値評価装置、社会的価値評価方法、及びプログラムが開示されている。
(第1項)
社会的価値の評価に関わるテキスト情報から特徴量を生成する特徴量生成部と、
評価対象に関するテキスト情報を入力する入力部と、
前記入力部により入力されたテキスト情報と前記特徴量との関連性を評価する評価部と、
前記評価部による評価結果を出力する出力部と
を備える社会的価値評価装置。
(第2項)
前記評価部は、前記入力部により入力されたテキスト情報から生成された特徴量と、前記特徴量生成部により生成された特徴量との類似度を計算することにより前記関連性を評価する
第1項に記載の社会的価値評価装置。
(第3項)
前記評価部による評価結果と、前記評価対象の財務情報との相関性を計算する相関計算部
を更に備える第1項又は第2項に記載の社会的価値評価装置。
(第4項)
前記出力部は、前記評価部による評価結果を社会的価値の指標毎に示す情報を出力する
第1項ないし第3項のうちいずれか1項に記載の社会的価値評価装置。
(第5項)
前記出力部は、前記評価部による評価結果と、前記評価対象の財務情報とを時系列で示す情報を出力する
第1項ないし第4項のうちいずれか1項に記載の社会的価値評価装置。
(第6項)
社会的価値評価装置が実行する社会的価値評価方法であって、
社会的価値の評価に関わるテキスト情報から特徴量を生成する特徴量生成ステップと、
評価対象に関するテキスト情報を入力する入力ステップと、
前記入力ステップにより入力されたテキスト情報と前記特徴量との関連性を評価する評価ステップと、
前記評価ステップによる評価結果を出力する出力ステップと
を備える社会的価値評価方法。
(第7項)
コンピュータを、第1項ないし第5項のうちいずれか1項に記載の社会的価値評価装置における各部として機能させるためのプログラム。
110 入力部
120 評価モジュール
121 テキスト解析部
122 評価部
130 特徴生成モジュール
131 特徴記憶部
132 テキストDB
133 特徴計算部133
140 相関計算部
150 財務DB
160 出力部
1000 ドライブ装置
1001 記録媒体
1002 補助記憶装置
1003 メモリ装置
1004 CPU
1005 インタフェース装置
1006 表示装置
1007 入力装置
Claims (7)
- 社会的価値の評価に関わるテキスト情報から特徴量を生成する特徴量生成部と、
評価対象に関するテキスト情報を入力する入力部と、
前記入力部により入力されたテキスト情報と前記特徴量との関連性を評価する評価部と、
前記評価部による評価結果を出力する出力部と
を備える社会的価値評価装置。 - 前記評価部は、前記入力部により入力されたテキスト情報から生成された特徴量と、前記特徴量生成部により生成された特徴量との類似度を計算することにより前記関連性を評価する
請求項1に記載の社会的価値評価装置。 - 前記評価部による評価結果と、前記評価対象の財務情報との相関性を計算する相関計算部
を更に備える請求項1又は2に記載の社会的価値評価装置。 - 前記出力部は、前記評価部による評価結果を社会的価値の指標毎に示す情報を出力する
請求項1ないし3のうちいずれか1項に記載の社会的価値評価装置。 - 前記出力部は、前記評価部による評価結果と、前記評価対象の財務情報とを時系列で示す情報を出力する
請求項1ないし4のうちいずれか1項に記載の社会的価値評価装置。 - 社会的価値評価装置が実行する社会的価値評価方法であって、
社会的価値の評価に関わるテキスト情報から特徴量を生成する特徴量生成ステップと、
評価対象に関するテキスト情報を入力する入力ステップと、
前記入力ステップにより入力されたテキスト情報と前記特徴量との関連性を評価する評価ステップと、
前記評価ステップによる評価結果を出力する出力ステップと
を備える社会的価値評価方法。 - コンピュータを、請求項1ないし5のうちいずれか1項に記載の社会的価値評価装置における各部として機能させるためのプログラム。
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