=Paper= {{Paper |id=Vol-2871/paper15 |storemode=property |title=The Interrelation of Sustainable Development Goals in Publications and Patents: A Machine Learning Approach |pdfUrl=https://ceur-ws.org/Vol-2871/paper15.pdf |volume=Vol-2871 |authors=Arash Hajikhani,Arho Suominen |dblpUrl=https://dblp.org/rec/conf/iconference/HajikhaniS21 }} ==The Interrelation of Sustainable Development Goals in Publications and Patents: A Machine Learning Approach== https://ceur-ws.org/Vol-2871/paper15.pdf
                                                                       1st Workshop on AI + Informetrics - AII 2021




         The Interrelation of Sustainable Development Goals in
        Publications and Patents: A Machine Learning Approach

                    Arash Hajikhani1[0000-0003-2032-9180] and Arho Suominen1,2[0000-0001-9844-7799]
            1
                Quantitative Science and Technology Studies, VTT Technical Research Centre of Finland,
                                        Tekniikantie 21, 02044 Espoo, Finland
                            2
                              Tampere University, P.O. Box 541, Tampere FI-33014, Finland



                    Abstract. The Sustainable Development Goals (SDGs) are the blueprint for
                    achieving a better and more sustainable future for all by defining priorities and
                    aspirations for 2030. In this paper, the attempt was to expand SDGs' definition
                    by performing a comprehensive literature review. Furthermore, the descriptions
                    of SDGs were utilized to compile a Machine Learning (ML) model so to auto-
                    mate the detection of SDG relevancy in other types of artefacts. The model was
                    employed for identifying the SDG relevancy of patents as well-known proxies
                    for innovation. The ML model was then used to classify a sample of patent fam-
                    ilies registered in the European Patent Office (EPO). The analysis revealed the
                    extend to which SDGs were addressed in patents and the interrelations between
                    SDG definitions. The findings guide how to align patenting strategies as well as
                    measurement and management of their contribution to the realization of the
                    SDGs when it comes to Intellectual Property (IP) strategies.

                    Keywords: United Nations; Sustainable Development Goals; SDGs; Innova-
                    tion; Intellectual Property; Patents; Natural Language Processing; Machine
                    Learning Model; Patenting Strategy


        1           Introduction

        Our planet faces massive economic, social and environmental challenges. To combat
        these, the Sustainable Development Goals (SDGs) define global priorities and aspira-
        tions for 2030. They represent an unprecedented opportunity to eliminate extreme pov-
        erty and put the world on a sustainable path.
        Science, technology and innovation (STI, as referred to in the UN and OECD contexts)
        have been recognised as one of the main drivers behind productivity increases and a
        key long-term lever for economic growth and prosperity [1]. STI is a fundamental tool
        to implement the new agenda, as it allows improving efficiency in both economic and
        environmental senses, developing new and more sustainable ways to satisfy human
        needs, and empowering people to drive their own future [2]. In the SDGs framework,
        STI features strongly both in Goal 17, as well as a cross-cutting one to achieve several
        sectoral Goals and Targets. Fostering innovation is part of Goal 9 related to resilient
        infrastructure and inclusive, sustainable industrialisation, while Target 9.5 elevates the




Copyright 2021 for this paper by its authors. Use permitted under Creative Commons License Attribution 4.0
International (CC BY 4.0).
2

role of research and innovation policy well beyond STI as one of the Means of Imple-
mentation.
From United Nations general assembly briefing materials, the importance of Science,
Technology and Innovation (STI) for the SDGs has been numerously mentioned in
yearly forums 1. A direct quote from Marie Chatardová President of the Economic and
Social Council, at the 2018 New York STI Forum “No one can ignore the vital role of
science, technology and innovation” (STI) in “advancing the transformative impact”2.
Another quote from Technology Adviser to the US Secretary of State, said that the
integrated nature of the SDGs requires multi-disciplinary and holistic science, technol-
ogy and innovation approaches that break silos and take into account different sources
of knowledge, at the concluding session of the Forum.
Innovation in general, but also innovation in the context of sustainable development
affects many parts of human life and should thus be treated with more concern. Goal
nine needs to be highlighted in the context of innovation. This goal states that the United
Nations' objective is to “promote inclusive and sustainable industrialization and foster
innovation” (p. 17). The importance of innovation to reach a sustainable development
is also recognized by Ashford and Hall [3].
STI is recognized as a democratizing tool for transferring science to society by innova-
tion and technology and it can show capacities to mobilize science, technology and
innovation for the achievement of SDGs. The first stage to set the path for direct efforts
to address SDGs is to understand what the track records have been so far. One of the
main ways of STI’s oriented efforts manifested is through scholarly literature and in-
tellectual property protected in the form of patents. The ability to take stock of and
analyse the output of science and technology has increased tremendously in the past
decade due to the increasing degree of digitalization of research article and intellectual
property databases (e.g., Web of Science, Scopus, PATSTAT, Google Patents). To a
significant extent, this literature still focuses on descriptive values rather than focusing
on creating an in-depth feature to data that create additional vantage points to evaluate
innovation systems.
This research is set to identify the SDG oriented artefacts which to a large extent mate-
rialize the efforts and outcomes of science, technology and innovation. The research is
trying to identify and capture values-based and sustainability-oriented Science, Tech-
nology and Innovation. A rigorous methodology will be utilized to extract definitions
and criteria of sustainable development goals. This knowledge will then be used to per-
form a classification task and build a machine-learning model to identify publication
and patents' relevancy to SDGs. The direct research questions from this exercise are
formulated as what the distribution of SDG relevancy on patents and to what extent
there is a relationship between distinct SDGs. Next part of the outlines describes the
research design and methodological approach. Analysis and discussion will follow.


1
  UN, Science, Technology and Innovation for the SDGs 2018 Forum: https://www.un.org/de-
velopment/desa/indigenouspeoples/science-technology-and-innovation-for-the-sdgs.html
2
  Science, technology and innovation crucial to ‘transformative impact’ of Development Goals,
   UN 2018 forum hearing: https://www.un.org/development/desa/en/news/sustainable/sti-fo-
   rum-2018-opening.html
                                                                                             3


2      Background

STI and the interaction between different actors is seen as the core indicator for the
economic growth [4–6]. The increase in the production of scientific and technological
knowledge acts as the key source of innovation and competitive advantage [7]. This
has been central to our understanding of the competitiveness of nations, but also the
competitiveness at the firm level. The centrality of the concept of productivity and its
increase to sustain the long-term competitiveness of nations has been the central para-
digm of economic policy for decades. This also explains that much of the literature on
the STI process focus on innovation outcomes [8]. Within this literature much of the
focus is centred around scientific work and research and development within the inno-
vation system. These are seen as vehicles to enable job creation, firm performance and
ultimately increases in the gross domestic product.
    However, there is an on-going debate focused to extend our focus beyond produc-
tivity or gross domestic product to other impact measures [9]. These developments have
been fortified by global challenges like climate crisis that has opened a dialogue to re-
evaluate the role of pure productivity as the objective for governments or businesses.
In the public sector. the climate crisis has strengthened the call for additional outcome
measures for innovation system activities. This has been clear in the broadening of pub-
lic impact assessment [10]. Policy discussion has also actively discussed the role on
grand challenges and the role of governments to take an active role in facilitating tran-
sitions unlikely to happen through other means but creating significant overall benefits
(e.g. Mazzucato [11]). We have also seen significant transitions in company leaders'
positions to the role of companies in grand challenges. The call from large company
CEOs to extend firm’s objectives beyond shareholder value [12] can be regarded as
major transition beyond the current paradigm towards looking towards a sustainable
economy.
    In this transition the work of the United Nations on the creation of SDG has been
central. SDGs offer one of the first holistic taxonomies of grand challenges. The emer-
gence of the SDG framework, and the overall shift in discussion, has required trans-
formative changes to the overall innovation system [13]. This again is particularly dis-
cussed in the policy domain, but literature also looks at the role of industry and inno-
vation activities relationship the SDGs. It is clear that there is a need to adjust all aspects
be they economic, governance and public policy at all levels if science, technology and
innovation to reorient to the SDG agenda [14]. One of the central questions is, if it is
fundamentally unrealistic to fit the corporate expectation to maximize profits to ensur-
ing equitable and sustainable development [15].
    This said, we can still estimate the impacts of industrial activity on the SDG. This
requires the development of practical proxy measures to establish a practical measure-
ment of corporate activities impact on the goals. Approached towards measuring soci-
etal impact of innovation has been done for example in the context of frugal innovation
[16]. However, literature has not shown practical approaches for creating a proxy meas-
ure for large scale analysis of STI impact on the SDGs. Our attempt in this study is to
extent the measurement of SDG relevancy to intellectual property (IP) type of docu-
ment such as patents. Patent documents are technical in nature but our approach will
4

benefit from equivalent scientific publication document to extend the lexical query re-
garding SDG and once the approach compiled to a machine learning model then utilize
it for identifying the SDGs in patent documents.


3       Methodology (Query crafting and data collection)

With the overall aim to identify SDG related science and technology and innovation
artefacts, the study design grounds on creating a lexical query by utilising an iteratively
developed database of SDG terminology (Figure 1). The keyword search was applied
to map scientific publications from the last decade. This period was chosen because it
encompasses the most recent activities, partly impacted by the SDG agenda. The out-
come of this process results in research publications concerning SDG focus. Mean-
while, patent documents, due to their content and descriptive nature, have not given
representative results regarding their relevancy to SDGs by use of SDG lexical search-
ing queries. While we have received representative results from publication data, we
can extrapolate the machine-learning model based on publication data to detect relevant
patents to SDGs.




    Figure 1. Workflow process of identifying and retrieving SDG related publications

   A detailed taxonomy has been developed for mapping the SDG relevant publica-
tions. The process of curating the lexical keywords involved analysing the UN Sustain-
able Development Goals documents [17]. From the semantics perspectives, each word
or concept has been expanded to lexically similar terms. Besides, the extracted list of
keywords was matched with existing taxonomies [18–21]. After this process, with the
keywords, searching queries are compiled for each SDG and then initiated on the pub-
lication database. For this study, the SCOPUS database was used to identify potential
sources. SCOPUS is the largest abstract and citation database of peer-reviewed litera-
ture. It includes books, scientific journals, and conference proceedings. Compared to
other scientific databases such as the Web of Science, SCOPUS has broader coverage,
and it is a widely used database to create datasets for systematic reviews of research
[22]. SCOPUS has already identified publications relevant to SDGs [23]. The resulting
publications were observed carefully to validate the relevancy of the resulted records
to the corresponding SDG.
   The bibliometric data for the resulting publication were extracted for each SDG. We
made sure to extract the textual content of the publications such as Title, Abstract and
                                                                                          5

Keywords within the bibliometric data. Harvesting the textual content, we are able to
train a model for automating the detection of unseen SDG related document. The model
is useful to pick up the hidden semantics of SDGs and the commonalities among the
SDGs. In particular, the model will be utilized for the more technical nature documents
such as patents. In our experiment, scientific publication metadata and the previous
studies on identifying SDG related publication was a starting point to engineer the de-
tecting mechanism of SDG related patent documents.
   This research has benefited from text classification and machine learning algorithms
to facilitate the SDG detecting model's construction. Text classification is one of the re-
search hotspots in the field of Natural Language Processing (NLP). Originated from
computer science and evolved from pattern recognition, the automated process of cat-
egorization (or classification) of an object such as text has become one of the growing
interests of utilizing machine learning. Due to the increased availability of documents
in digital form, ensuring the need for flexible ways to access them [24]. Therefore, the
activity of labelling natural language text (text classification or topic modeling) by ma-
chine learning algorithms gives an opportunity to process a large amount of text auto-
matically for better insights.
   The python programming language was used to handle the data structuring and ML
model building. The SDG related publications identified in the previous step will be
utilized as a training set for the classification algorithm. The classification methods for
performing a multi-class text classification model are many (e.g. Naive Bayes, Maxi-
mum Entropy, SVM). Naive Bayes is the algorithm used in our research to train the
machine learning classification model. Naive Bayes is a probabilistic model which
works well on text categorization [25]. In validating the accuracy and reliability of the
model, we use a test set (new publications) to confirm the usability of the ML model.
Figure 2 illustrates the workflow of the methodological steps.




   Figure 2. Workflow and study design for the Sustainable Development Goals (SDG) detection
and mapping of Intellectual property documents

   After compiling the machine learning model, we can rely on its judgment to classify
an unseen document concerning its relevancy to SDG themes. In the case of our study,
we are interested in identifying patents that are addressing the SDGs. The assignment
of SDG relevancy to a patent document will be a probabilistic distribution. We can see
the patent document relevancy by a percentage point to all SDG themes.
6


4      Analysis

To identify the relatedness of patents to sustainable development goals, we are opera-
tionalizing the strategy described in the methodology part. With the help Python pro-
gramming language, the steps will be carried out to compile the SDG identification task
model to classify the new text (in our case patent text). A prerequisite step before com-
piling the Machine Learning model is text pre-processing of the initial text. Text pre-
processing is traditionally an essential step for natural language processing (NLP) tasks.
It transforms text into a more digestible form so that machine learning algorithms can
perform better. The pre-processing text phases include stop word removal, stemming,
and lemmatization, which aims to normalize all the text on a level playing field. The
text will also be tokenized, splitting strings of text into smaller pieces or “tokens”. We
also take care of noise removal from the initial text, such as cleaning up text from extra
whitespaces, lowercase of all text and removing special characters. Finally, we will
convert our text documents to a matrix of token counts, then transform a count matrix
to a normalized ratio such as TF-IDF (term frequency-inverse document frequency) a
numerical representation of the text. After that, we train several classifiers using Py-
thon’s Scikit-Learn library and Gensim library.
    Once the features are generated from the text, machine learning classifier can be
trained with the labelled publication data to finally predict the SDG relevancy of a pa-
tent document. Six different classification strategy has been tested and the performance
of each model is reported in Table 1. The models' overall accuracy did not reach above
60% (based on the first prediction of the model). This benchmark is not a high standard
accuracy for accepting the model for useful classification of all the classes. Our model
experimentations deliver acceptable accuracy (above 60%) for most of the SDG classes
such as: SDG 1, 2, 3, 4, 5, 6, 7, 9, 10, 13 and 16.

    Table 1. Classification Models Performance Comparison
        NAIVE BAYES                             LINEAR                    LOGISTIC    WORD2VEC DOC2VEC AND MULTI-LAYER
         CLASSIFIER                            SUPPORT                   REGRESSION AND LOGISTIC LOGISTIC  PERCEPTRON
             FOR                               VECTOR                                REGRESSION REGRESSION  CLASSIFIER
        MULTINOMIA                             MACHINE
          L MODELS
        precision




                                        precision




                                                                        precision




                                                                                                        precision




                                                                                                                                        precision




                                                                                                                                                                        precision
                             f1-score




                                                             f1-score




                                                                                             f1-score




                                                                                                                             f1-score




                                                                                                                                                             f1-score




                                                                                                                                                                                             f1-score
                    recall




                                                    recall




                                                                                    recall




                                                                                                                    recall




                                                                                                                                                    recall




                                                                                                                                                                                    recall




SDG1   0.53 0.75 0.62* 0.67 0.72 0.69* 0.60 0.56 0.58                                                   0.65 0.68 0.66* 0.58 0.62 0.60* 0.68 0.60 0.64*

SDG2   0.57 0.60 0.58                   0.57 0.67 0.62* 0.52 0.61 0.56                                  0.61 0.62 0.62* 0.57 0.60 0.58                                  0.55 0.57 0.56

SDG3   0.82 0.88 0.85* 0.69 0.93 0.79* 0.87 0.89 0.88* 0.86 0.87 0.86* 0.81 0.89 0.85* 0.85 0.92 0.88*

SDG4   0.75 0.74 0.74* 0.71 0.87 0.78* 0.78 0.77 0.77* 0.78 0.75 0.76* 0.76 0.77 0.77* 0.86 0.79 0.82*

SDG5   0.55 0.72 0.63* 0.59 0.79 0.68* 0.60 0.57 0.58                                                   0.65 0.61 0.63* 0.62 0.61 0.61* 0.62 0.68 0.65*

SDG6   0.57 0.63 0.60* 0.58 0.76 0.66* 0.62 0.59 0.61* 0.62 0.66 0.64* 0.64 0.63 0.63* 0.63 0.55 0.59

SDG7   0.83 0.78 0.80* 0.69 0.86 0.76* 0.80 0.81 0.81* 0.82 0.84 0.83* 0.83 0.82 0.82* 0.82 0.85 0.83*

SDG8   0.50 0.46 0.48                   0.59 0.40 0.48                  0.41 0.41 0.41                  0.52 0.46 0.49                  0.50 0.48 0.49                  0.46 0.48 0.47

SDG9   0.49 0.66 0.56                   0.61 0.70 0.65* 0.59 0.56 0.57                                  0.59 0.66 0.62* 0.59 0.54 0.56                                  0.66 0.63 0.65*
                                                                                                              7

SDG10 0.69 0.45 0.54   0.76 0.56 0.64* 0.62 0.57 0.59    0.63 0.56 0.60* 0.52 0.49 0.50     0.57 0.61 0.59

SDG11 0.51 0.44 0.47   0.55 0.54 0.55   0.42 0.48 0.45   0.53 0.54 0.53    0.53 0.55 0.54   0.51 0.50 0.51

SDG12 0.56 0.40 0.47   0.65 0.36 0.46   0.45 0.43 0.44   0.54 0.49 0.51    0.47 0.42 0.44   0.50 0.46 0.48

SDG13 0.50 0.64 0.56   0.55 0.60 0.58   0.55 0.50 0.53   0.56 0.59 0.58    0.60 0.66 0.63* 0.54 0.53 0.54

SDG14 0.16 0.16 0.16   0.13 0.10 0.11   0.10 0.11 0.11   0.31 0.37 0.34    0.30 0.29 0.29   0.09 0.11 0.10

SDG15 0.10 0.07 0.09   0.09 0.06 0.07   0.11 0.11 0.11   0.25 0.19 0.22    0.31 0.31 0.31   0.05 0.05 0.05

SDG16 0.73 0.49 0.58   0.74 0.51 0.61* 0.60 0.64 0.62* 0.60 0.69 0.65* 0.56 0.57 0.57       0.65 0.57 0.61*



    According to the model comparison in Table 1, the highest overall accuracy (f-score)
is achieved by “Word2vec and logistic regression” models. Next, we will utilize the
classifier model to perform the patents' classification task to the selected SDGs. For this
step a sample patent dataset is retrieved from Clarivat’s Derwent innovation database.
For the duration of 3 years between 2017 and 2019, all the granted patent families were
retrieved along with their textual content (title and abstract), patent number, assignee
and patent country code. A set of 31 thousand patent family was collected. In order to
apply the “Word2vec and logistic regression” classifier for assigning the patents family
relevancy to any of the SDGs, the same pre-text cleaning procedures applied to the
textual content of the retrieved patents. After passing the patent’s process texts into the
ML model, we achieved the relevancy of each patent document to any of the SDGs
with the distribution of probability percentage to each SDG. Considering the ML mod-
el's better performance into classifying a specific category of SDGs, we have trimmed
the results for that specific SDGs. Figure 3 presents the accumulative highest to lowest
relevant SDGs which was addressed in the patent application texts.

     30,0 %

     25,0 %
                                                                                       25,9 %26,6 %
     20,0 %

     15,0 %

     10,0 %
                                                                               10,0 %
                                                                          8,7 %
      5,0 %                                              7,5 % 7,7 %
                                               5,0 %
                0,4 %1,5 % 3,2 % 3,5 %
      0,0 %
                 7

                 3

                 4



                 9



                 6

                 2

                 5



                 1
                13



                10




                16
               G

               G

               G



               G



               G

               G

               G



               G
              G



              G




              G
             SD

             SD

             SD



             SD



             SD

             SD

             SD



             SD
            SD



            SD




            SD




  Figure 3. Relevancy of patent documents to SDGs
8

   Figure 3 indicates that almost half of the patents address SDG 1 and 16, then the
35% of the patents address SDG 5, 2, 6 and 10. The rest of SDGs were not picked
significantly in patents textual information.
   One interesting observation could be looking at the language structure of patent and
publications across various SDGs. To quantify the difference of language structure be-
tween patent and publications in the same SDG category, we utilize the vector repre-
sentation of the tokens of text. Back in the text preparation phase we used the
“word2vec” method, a type of word representation that allows words with similar
meaning to be understood by classifiers. In technical terms, it maps words into vectors
of real numbers using the neural network, probabilistic model, or dimension reduction
on word co-occurrence matrix. Once we transformed our textual content into their nu-
merical representation, we are able to perform a general arithmetic operation such as
measuring the similarity or calculating the different structure of word when comparing
two bags of text. Knowing the background for the method, we did estimate the differ-
ence in language structure of patents and publications for each SDG and reported the
measure as similarity measure. The value was then normalized so to show in a percent-
age point. The higher the percentage point the similar the text would be between patent
and publications. Figure 4 illustrates the interconnectedness of SDG oriented patent and
publications with similarity measure. Obviously, the same SDG category indicates a
higher similarity percentage (i.e. Publication: SDG1 – Patent: SDG1 60.6% similarity).




    Figure 4. Flow diagram illustrating the interconnectivity in Publication (left side) and Patent
(right side) document regarding SDG relevancy.
                                                                                         9

   Interestingly, in this observation we noticed textual similarities between patent and
publications in unexpected categories such as “Publication: SDG2 – Patent: SDG16
58.60% similarity”, “Publication: SDG2 – Patent: SDG5 56.70% similarity”, “Publica-
tion: SDG2 – Patent: SDG6 38.10% similarity”. The extensive table of text relation-
ships with a similarity ratio of above 30% between non-similar categories of SDGs is
visible in Table 2.

  Table 2. The interrelatedness of different SDG categories within Publication and
Patents
                         Publication    Patent        Similarity

                            SDG2           SDG16         58.60%
                            SDG2           SDG5          56.70%
                            SDG2           SDG6          38.10%
                            SDG4           SDG6          36.60%
                            SDG9           SDG16         36.20%
                            SDG13          SDG16         35.10%
                            SDG4           SDG16         34.10%
                            SDG1           SDG9          32.80%
                            SDG2           SDG13         32.80%
                            SDG2           SDG4          31.70%



5      Discussion & Conclusion

As an international developmental framework to achieve a better and more sustainable
future, the United Nations Sustainable Development Goals (SDGs) offers a gridline to
activate a development-oriented approach. Governments worldwide have already
agreed to these goals. Now the pressure to take action is on a global as well as on local
levels. Scientific and technological innovations are necessary but enabling them to im-
pact requires an understanding of their utility to the sustainable positive economy. Our
study is capable of makes several contributions on systematically comprehending sus-
tainability-oriented science, technology and innovation. First, it offers a systematic path
for creating a catalogue for sustainable development goals requirement and objectives.
Second, based on the publications with the highest relatedness to SDGs, the study train
and develop a machine learning model in order to detect the relatedness of another type
of Scientific and technological innovations such as Patents. Development intersects
with IP policies as creativity and innovation are either fostered or frustrated by an econ-
omy’s chosen development policy. Therefore, including consideration of the SDGs in
IP policy could lead to more significant and more lasting success.
   Based on the UN’s SDG definition, we queried for relevant publications which ad-
dress the 16 SDGs. This way we extend our vocabulary to capture the breadth and depth
of SDGs within scientific publications. The application of comprehensive lexical de-
sign for SDGs was compiled in a machine learning model so to classify other textual
10

content regarding their relevancy to the SDGs. Then we utilized the trained machine
learning model to identify the applicability of intellectual property (IP) documents con-
cerning SDGs.
   Within a sample set of patents collected from the European patent office for 3 years
(2017-2019), the model performed with high accuracy in detecting 11 of the SDGs.
Among the identified SDGs, there was high relatedness on some of the SDGs compares
to others (e.g. SDG 1 and SDG 16). Based on the similarity measure, we learned the
interconnectedness between SDG categories. For example, SDG2 between SDG 5 and
16. While patent texts are technical in nature, we could quantify if any notion of SDGs
were addressed in the patent’s textual content and to what extent.
   The study's implicit implications can provide an overview of the STI so far contrib-
uted to SDGs on a macro level. On a micro level, it guides companies on how they can
align their strategies and measure and manage their contribution to the realization of
the SDGs when it comes to IP strategies.

Acknowledgments
  This project has received funding from Business Finland Innovation Research 2020
under project name INNOSDG.

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