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2018-03 07

[Performance]Paiknam Academic Information Center & Library Wins Korea Library Award

▲Paiknam Academic Information Center & Library received the first ever Korean library award at the 50th Korea Library Awards on February 22nd On February 22, the director of the Paiknam library Eom Ik-sang won the grand prize at the 50th Korea Library Awards. Hanyang was the sole recipient among the other universities. The Korean Library Awards is given by the Korean Library Association for selecting organizations and individuals who have contributed to the development of libraries nationwide. Paiknam library was recognized for its efforts on 'innovation' by remodeling libraries for user convenience and sharing their performances at seminars. ▲ Director Eom receiving the prize "I am very pleased to receive a meaningful prize in the year of the 70th anniversary of the opening of Hanyang University Library," said Professor Eom at the Department of Chinese Language & Literature. He added "We will do our best to contribute to other universities by making the Paiknam Academic Information Center a model of the nation`s university library."

2018-01 31 Headline News

[Academics][Researcher of the Month] Producing Energy by Wearing Clothes

Clothes that create electricity is not something in a movie anymore. In the midst of searching for various renewable energy, Professor Hong Jin-pyo (Department of Physics) created a new energy source that is created through friction in a single thread, as demonstrated in his research, ‘Hierarchically Nanostructured 1D Conductive Bundle Yarn-Based Triboelectric Nanogenerators.’ Hong conducted his research on energy-producing threads. When designing a wearable device, people generally think of light and slim devices attached on one’s clothes or body, usually charged by a solar heat system. This is referred as a two-dimension technology, as an object is placed upon another object. This does have its own benefits but also contains deficits such as weight and energy sources. Therefore, Hong created a one-dimension energy source – a thread that is used when weaving clothes. “Once a material is attached to clothing, the efficiency lacks uniformity,” explained Hong. He invented a thread that can produce energy itself, without having to attach anything onto a particular piece of clothing. The threads that make up the clothing could create energy itself. This thread, also named as a ‘triboelectric nanogenerator’, is a structure made from the notion of friction that we experience in our daily lives. For example, when we rub a balloon to our hair, friction occurs, resulting in a form of spiky hair. This phenomenon occurs when an electron is moved from one object to another, when these two objects continuously collide with each other. Depending on the characteristics of an object, one object would lose electrons and the other would gain electrons, meaning some sort of slight energy is formed. In this thread, polymer and aluminum are used; the former collects the electrons and the latter releases the electrons. Therefore, once the body wearing the clothing weaved from this thread moves, energy is created. The microscophic strucuture of a thread. (Photo courtesy of Hong) This triboelectric nanogenerator is still in the midst of its research. As this thread is extremely thin, Hong’s research team created a conductive bundle yarn so that they could have more strength. Moreover, he attached polymer-like nanostructures onto a single thread, so that the thread could have an increased surface area of energy production. Once energy is created through a larger surface area, bigger energy could be created within a single thread. This whole process is also known as a tribo electric effect. This one-dimension thread has a bright future in front of them, as technology closer to human are fondly being conducted on. “Once a sensor could be attached onto the thread, even more tasks could be done. This sensor could send whatever information they require to the owner’s smartphone, once the sensor adapts a Bluetooth function,” commented Hong, when asked about the future of this invention. He wished that this function would be able to let citizens to have control of their IoT (Internet of Things, a system of interrelated computing devices, mechanical and digital machines, object, animals or people that are provided with unique identifiers) through their energy producing clothes. "Keep trying! No matter what!" As Hong has not majored in clothing and textiles, he is not yet an expert of clothing, but has not been afraid of pioneering this area. “I had been proceeding my research in semiconductors at first. As new technologies evolved, I believed it was important to keep up with these changes to improve what I have been initially doing,” reminisced Hong. As he had achieved an unexpected success through his passion, he also gave the same advice to all Hanyangians. “Don’t make excuses. What really matters is whether you tried your best or not. I wish all of you can improve yourself through endless challenges!” On Jung-yun Photos by Choi Min-ju and Lee Jin-myung

2018-01 08 Headline News

[Academics][Excellent R&D] Big Data and the Key to Handling Them

In the society where social networking is becoming more and more inseparable from people, an ever-increasing number of users are getting involved. As a consequence, the ocean of big data in corresponding area is expanding its capacity, and there has been a need to efficiently analyze and organize the data. In his Big Data Science Laboratory, Kim Sang-wook (Department of Computer Science) has been continuously researching the topic. In his recent paper “High-performance graph data processing on a single machine,” Kim has proposed a method to increase the performance of data processing and to efficiently arrange the mass of data. A graph or a network is a complex arrangement of nods and edges, which are the components of an online world such as its users and webpages and the relationships they have, respectively. In a social network, for example, each user will be labeled as a nod and the relationships that users have with other users or webpages will be marked as edges. “Where could this graph be used? Numerous types of data could be modeled in the form of this graph. For example, Facebook users and their friends, bloggers and their neighbors, and the recommender system of search engines such as Youtube, Amazon and more are all related to the graph of nods and edges.” Depending on who views what how many times or which page receives the most views, weights could be added onto the edge between the user and the page, zooming out of which will form a complex web of a graph. Big data is usually calculated in a matrix, the process which is made more efficient by Kim. (Photo courtesy of Kim) How Kim made the graph data processing more efficient is by creating three constructive approaches. First, he made matrix multiplication of data simpler and easier by balancing the load over each thread blocks of the matrix. When there is a poor balancing of load input in each row of the matrix, the multiplication process could take a long time and the performance might not be excellent. With the balanced threads of the matrix, however, even distribution of workloads would resolve this problem and it would be much less time-consuming compared to the previous method. Second, Kim created a graph engine, which is a storing software that handles data in a productive manner. In order to analyze a graph, the data must be saved in a disc first. In doing so, the tool that helps the disc to save the data more efficiently is the graph engine, which Kim proposed in his paper. “The strength of our laboratory is that we research on two aspects of data. By researching the performance-wise aspect of the data and also the analytical aspect, we leave no chance of missing a single detail of matter.” Thirdly, Kim introduced a placement algorithm that could simplify the arrangement of nods in a graph engine. Previously, when a graph undergoes a process of analysis in a graph engine, the data was put in the exact same order as it entered. Clusters of irrelevant nods could cause a delay in the data processing, which Kim solved by discovering that by sorting the nods of similar traits together, the overall performance of graph processing could show a big difference. With the same data, different outcomes could be derived by finding out the advantageous groupings of nods. With his current research of graph engine and graph modeling, he could use them as stepping stones to move onto his next research. Kim’s future research is directed toward community detection and recommender systems. With the modeled graph of data, analysis of the data could easily be made and the members of a social community with similar interests could conveniently be detected. On a similar note, a recommender system could be improved by analyzing what a user likes, clicks, views, buys, or prefers with the graph: a more accurate recommender system could be developed. With the building blocks he has worked on, Kim will be building on more as he carries on his future research. "Characteristics of the data could be figured out by analyzing the graphs." Jeon Chae-yun Photos by Kang Cho-hyun

2018-01 03

[Academics][Researcher of the Month] Calculating the Effects of the English Rule and American Rule

Have you ever lost a lawsuit? There are two ways to resolve the financial issues concerning legal costs after the resolution. The first method is called the English Rule, where the loser of a lawsuit pays the winner’s legal fees. The other one is the American Rule, where each party handles their own legal cost. Since the 1990s, there has been a general consensus among economists that the former improves the quality of a lawsuit and reduces trial costs. Yoon Jung-mo (Professor, Department of Economics & Finance) was the one to propose the question, ‘is it really?’ in his recent article, ‘Estimating the Effects of the English Rule on Litigation Outcomes.’ When asked if he has anything to tell his pupils, Yoon said, "you are all doing excellent, so I wish you can stop worrying," with a warm smile on his face. Every government aims to reduce the number of lawsuits, especially Korea and the United States. The increased number of court cases lead to increased government and societal spending on legal institutions and its personnel. The key to amend such issues is to reduce the real number of law suits to alleviate the burden of the court and increase the case quality, which is determined by the chance of a plaintiff winning the case and the amount of the settlement. Therefore, according to the long research in the economics field that concluded the English Rule, a lot of people argue for the rule. Currently, Korea is running based on the American Rule, but the law limits the amount of money that can be covered by the loser of the case. The prevalent textbook conclusion is mostly derived from the comparison of the Florida case, where they switched from the American Rule to the English Rule in 1980 and then flipped back in 1985. Because measuring the economic impact of a legal system can sometimes look like comparing apples to oranges, the case of Florida provided the perfect background for legal economists to analyze the impact. Yoon mentioned that there are two main significances that the paper proposes. First is that there are more proofs accumulated after the 1990s when the consensus was initially made. The initial paper studies the cases before 1980 and cases between 1980 to 1985. However, it neglected the cases after the second change of the rule, which could have critical impact to the interpretation. Also, Yoon and his co-author implemented a new way of making a conclusion. Traditionally, the economic impact is measured and reported as a fixed number. However, this cannot entail all the complex probabilities behind the result. Using the bound analysis method, researchers can predict the best and worse case scenarios and give a range of possible influences. The second significance is that Yoon and his co-author took the cases that were settled during the process into account. As only a few litigations continue to the very end of the judicial process, it is very important to consider the changed behavior of people according to the increased or decreased amount of pressure resulting from the verdict. Yoon is enthusiastically giving an explanation about his paper. Yoon’s scrutinized analysis, however, contradicts what has been believed for a long time. When it comes to the trial outcomes, the range derived from the bound analysis does not signify any relevance between the change of legal system and the trial cost. It does increase the amount of settlement, while decreasing the number of settled cases. “The hardest part of continuing such rigorous research was to overcome the constant skepticism,” said Yoon. According to him, it takes a long time for a researcher to complete a paper and for the paper to be accepted in a journal or presented in a conference. Believing in himself and moving forward regardless of the incredulity, Yoon will continue further to conduct research. Kim So-yun Photos by Kang Cho-hyun

2017-12 28

[Performance]Hanyang Made Remarkable Achievements in This Year's National Examinations Results

Hanyang University has achieved remarkable results in this year's national examinations. The excellent outcome of the three examinations have been provided below for the bar exam, civil service exam (technical post), and civil service examination (administrative post). ▶ 7 Hanyang students passed the final bar exam: ranked 2nd in nation. On the 7th of November, the Ministry of Justice announced 55 finalists for the 2017 59th Bar Examination. Hanyang University produced seven successful applicants: 12.7% of the total of the applicants and ranked second, trailing only Seoul National University (13 applicants). Hanyang, which occupied fifth place last year with 6 successful applicants (5.5%), jumped to a double-digit percentage this year and rose to 2nd place, showing the most notable results in this last bar exam. Most notably, the oldest candidate, Park Jung Hyun, who is a 45-year-old graduate (Laws 92), gained public attention. ▶ 15 Hanyang students passed civil service exam (technical post): ranked 2nd in nation. Of the 73 people who passed the 2017 civil service exam (technical post), which was announced on the 13th of December, 15 successful applicants are from Hanyang, ranking in 2nd place. There were 16 applicants (21.9%) from Seoul National University, followed by Hanyang University with 15 applicants (20.5%). Last year, the number was 19 candidates and occupied first place with Seoul National University. Most notably in this year's civil service exam (technical post), Hanyang proudly displayed the "Hanyang University of Engineering" with immense pride and distinction by producing the most successful applicants with four parts such as chemistry, machinery, architecture, electricity, etc., excluding civil engineering. The best students from each part are as follows: Jeon Eui-gun (Building Engineering 08) in architecture, Kwon Young-eun (Mechanical Engineering 13) in machinery, Park Sung-yeol (Electricity and Bio Engineering 12) in electricity, Jo Won-dam (Chemical Engineering and Biotechnology 14). ▶ 16 Hanyang students passed the civil service examination (administrative post): ranked 5th in the nation. Of the 275 final successful applicants (247 nationwide recruitment, 28 local recruitment) from the 2017 civil service examination (administrative post), published on the 7th of November, 16 candidates were from Hanyang University, ranking 5th. According to the results analyzed by the Law Journal, the number of successful applicants from Seoul National University were 100 (36.4%), followed by 36 from Yonsei University (13.1%), 35 from Korea (12.7%), 26 from Sungkyunkwan University (9.5%), 16 from Hanyang University (5.8%), each 8 applicant (2.9% each ) from Sogang · Ewha Womans University, 7 from Kukuk universities (2.5%), 6 from Kyung Hee University (2.1%), JoonAng University · KAIST (1.8% each), etc, in order. Looking at the applicants in each part, Hanyang University was the largest in the national general administration (8 people), and the local general administration (5 people) was also a large number. In addition, 1 applicant each was passed in parts, including international trade, legal administration and prosecutors, etc. Notably, Kang Hye-rim (Policy Studies 11) was the most successful applicant, displaying Hanyang University's excellence through her achievement.

2017-12 21

[Performance]National&World University Rankings in 2017

Hanyang University showed superior results by recording a rise over the previous year in national and interantional university evaluation during 2017. The results of this year made by Hanyang University are provided below including ‘Nature index’, ‘QS World University Rankings’, "JoongAng Ilbo University Rankings", and ‘Dong-A Ilbo Youth Dream University Rankings’ of the world's top university evaluation. ▶ Nature index 1st in nation, 23th in the world In the ‘2017 Nature Index Innovation’ announced in September by Nature Publishing Group’ (NPG), the global science publishing group, Hanyang University ranked 1st in nation and 23rd in the word a patent cited index(Normalized Lens influence) category ▲ ‘2017 Nature index Innovation’ (Nature index website capture image) The Normalized Lens Influence Metric is an indicator that shows how one paper is used in patents. The higher the score is, the more papers published at that institution are evaluated to reflect much on this practical technology development. Hanyang University ranked 1st in nation, with 25,633 papers published from 1980 to 2015, patent citations of 142,555 times and the Normalized Lens Influence Metric index paper, 5.56 points. ▶ QS World University Ranking 155th In last June, Hanyang University ranked 155th in 2017 QS World University Rankings announced by the UK global university evaluation institution QS (Quacquarelli Symonds), climbing 16 stairs compared to last year's performance. It is the eighth highest record among domestic universities. Hanyang University, which steadily climbed in QS world's university evaluation through the last five years, recorded its highest rank this year as well. ▲ 2017 QS World University Evaluation Rankings (QS Ranking website capture image) 2017 QS World University Rankings evaluated 4854 universities around the world and ranked them in four fields of research, education, graduate reputation, internationalization, etc. with six indicators. The six evaluation indicators are as follows: △ academic evaluation (40%) △ the number of paper citations per professor (20%) △ the number of students per professor (20%) △ graduate reputation (10%) △ foreign student rate(5%) △ foreign professor rate(5%). According to the article of Chosun Ilbo on June 8, QS said, "in this evaluation, Korean universities have high academic evaluation and graduate reputation, while those who measure the quality of university research are still low including ‘the number of paper citations per professor’ and ‘the percentage of foreign professors and students’.” It is pointed out that many Korean professors need to publish papers in English in order to increase the number of paper citations and the research power of Korean universities can be expanded globally. Meanwhile, Hanyang University received the total score of 83.8 (out of 100 points) in ‘2017 Asian University Evaluation’ announced by QS in October, ranked 30th in Asia and 7th in nation as last year. Hanyang University has high scores especially in these indicators, ‘exchange students who went abroad’ (99.9 points, 18th place), "exchange student who entered Korea" (96.1 points, 28th place), "graduate reputation" (94.3 points, 26th) and so on. ▶ 2017 JoongAng Ilbo University Rankings, Seoul Ranked 3rd · ERICA 9th In 2017 JoongAng Ilbo University Rankings released in October, three results of the evaluation were open including 'Comprehensive Evaluation', 'Department Evaluation' and 'Reputation Survey'. The ranking of Seoul campus dropped one stair from the previous year, but ranked within TOP 10 d in 'Department Evaluation' and 'Reputation Survey'. In ‘Comprehensive Evaluation’, Seoul Campus is ranked 1st in 'Student Performance' (58 points), 3rd in 'Professor's Research' (70 points), 4th in 'Educational Conditions' (60 points), 5th in 'Reputation' (24 points), and 3rd in overall rankings with total 214 points. ERICA campus ranked 9th overall by achieving 6th (49 points) in 'Student Performance', 10th (62 points) in 'Professor's Research' category. ▲’2017 JoongAng Ilbo University Rankings’ Comprehensive Rankings (Picture = JoongAng Ilbo) This year’s department evaluation was divided into four categories: humanities, social science, engineering, and natural sciences. In 'Humanities· Social Science Department Evaluation' the Seoul campus ranked 3rd in the humanities(179 points) and 2nd in the social sciences (188 points) category. ERICA campus ranked 14th in humanities (143 points) and 20th in social science (140 points). In the evaluation of 'Natural science and engineering department', Seoul Campus ranked 5th in the natural sciences (174 points) and 3rd in the engineering field (206 points). ERICA campus recorded the ranking of 10th in engineering (176 points). According to the Joongang Ilbo article, "Seoul Campus focused on finding a job suitable for student's aptitude through field placement (field placement participation rate, Humanities 3rd·Social Science 6th)". Article added, "Professors consulted continuously with many students and connected them to the training sites, and lots of students worked for the same company after six months of employment (Maintenance employment rate; Humanities 4th·Social Science 3rd)". In addition, "the number of technology venture companies, certified by Technology Guarantee Fund and identified from which university the founders graduated, was 13,947. Among the founders of these companies, 498 people are from Hanyang University in Seoul Campus, second only to Seoul National University (525 people) ". The article emphasized, " Hanyang University focuses on entrepreneurship education, and the number of students who received entrepreneurship training last year was the highest (6580, including redundancy) among the evaluated universities”. According to a reputation survey conducted together with ‘Research & Research’, Seoul Campus was ranked the 5th in natural sciences and 9th in liberal arts field for a question "University you wish to recommend for admission." Seoul Campus occupied 4th place in natural sciences and 6th place in liberal arts field for a question "University you wish to recommend for admission." Seoul Campus was ranked 6th and ERICA campus was the 9th for the question "university with a high potential of development." ▶Reception of the highest evaluation in the ‘2017 Youth Dream University Rankings’ by Dong-A Ilbo Hanyang University was selected in the 'Best' category for three consecutive times in the ‘2017 Youth Dream University Rankings’ by Dong-A Daily, the Ministry of Employment and Labor, the Korea Employment information Agency and the research firm Macromill Embrain. ▲ The result of ‘2017 Youth Dream University Rankings’ (Picture = Dong-A Ilbo) In this evaluation of how effectively and actively the finest universities offering good educations support students’ employment and entrepreneurship, Hanyang University received the highest score of 87.7 points among the top 10 universities in 'infrastructure' sector. Hanyang University received 82.1 points for 'education' sector, 80.6 points for 'network', and 74.5 points for 'service'. Dong-A Daily article states that Hanyang University has developed more sophisticated programs to support student’s employment and start-ups than the evaluation in 2015 by introducing HY-CDP (Career Development Program).

2017-12 21

[Performance]Hanyang University Ranked 2nd in Number of Successful Candidates in Civil Service Exam (Technical Post)

According to the results of analysis of 73 successful candidates of 2017 Civil Service Examinations (Technical Post), the number of graduates from Hanyang University was 15, the second highest in the nation after Seoul National University(16). In particular, Hanyang university produced 4 national top scorer in the main posts. Jeon Eui-gun (Architectural Engineering 08) in the architectural post, Kwon Yong-eun (Mechanical Engineering 13) in the mechanical engineer post, Park Seong-yeol (Electrical and Biomedical Engineering 12) in the electrical post, and Jo Won-dam (Chemical Engineering and Biotechnology Engineering 14) in the chemical engineering post ranked top score in each post respectively. When categorizing by post, 4 students passed in the civil engineering post, followed by the architectural post (3), communication post (2), and chemical engineering post (2). Also Hanyang University had one successful applicant in each of the machine, disaster prevention, fisheries, electrical post. The chart above shows the number of successful applicants by university. Seoul National University ranked 1st in number of successful candidates with 16 (21.9%) , followed by Hanyang University with 15 (20.5%), Korea University with 9 (12.3%), Yonsei University with 8 (10.9%), KAIST with 7 (9.5%), and Sungkyunkwan University and Inha University with 4 (5.4%) and University of Seoul of 3(4.1%). Nagoya Institute of Technology, Dongguk University, Sogang University, Wonkwang University, Jeonbuk National University, Chungang University, Pohang University of Technology produced one successful candidate respectively.

2017-12 07

[Admission ]A 2018 Hanyang University Essay Entrance Exam Science & Engineering Departments

On December 2, a 2018 essay entrance exam on science & engineering department was conducted at Seoul campus of Hanyang University, Seongdong-gu, Seoul. Hanyang conducted the 2018 susi essay test for two days from December 2. 34,710 students applied for the exam and the competition rate for the admission is 87.65: 1. ▲ Applicants are making the final review on 2018 essay entrance exam conducted at Seoul campus, Hanyang University, Seongdong-gu, Seoul. ▲ The supervisor is confirming student's identity on the 2018 essay exam for science & engieering departments. ▲ Students who took the 2018 essay exam are passing through the campus in Seongdong-gu, Seoul ▲ Students who took the 2018 essay exam are passing through the campus in Seongdong-gu, Seou ▲ Students who took the 2018 essay exam are passing through the campus in Seongdong-gu, Seou

2017-12 04

[Academics][Researcher of the Month] Obesity, Everyone’s Enemy

Regardless of gender, age, and nationality, obesity is a health problem that is affecting an increasing number of people. While most people think obesity merely has to do with dietary habit, it shows close relations with metabolic diseases and cancer. In other words, obesity is not just caused by the consumption of large calories, but there are other possible factors to it. Kim Yong-hee (Department of Bio-Engineering), whose interest lies in obesity and the ways to prevent and cure it, discovered an innovative way to counteract obesity in his paper “Visceral adipose tissue macrophage-targeted TACE silencing to treat obesity-induced type 2 diabetes,” which was coauthored by two of the graduate school students of the department: Song Yoon-sung (2nd year) and Yong Seok-beom (3rd year). Kim explained that by targeting the inflammation caused by the excess fats, obesity can be treated. The existing method used to treat obesity was to suppress appetite by touching the nerve system, for it was mainly believed that the root cause of obesity was excessive-consumption. However, Kim discovered in his laboratory that obesity has to do with inflammation within fat-storing tissues, which are called adipose tissues. Inside a patient’s body, the excess fat that cannot be stored in the adipose tissue spreads to its surroundings, which then causes inflammation when in contact with other types of cells. A type of white blood cell that engulfs and digests foreign cellular debris called macrophage are largely responsible for obesity-induced adipose tissue inflammation. A breakthrough in Kim’s research is that obesity can be treated by preventing the accumulation of fat within the body, by controlling the inflammation through gene delivery, not by suppressing appetite. In such a scenario, the gene delivery system Kim and his students have invented in the laboratory refers to the targeted gene delivery system that is capable of selectively targeting the visceral (relating to the intestines) adipose tissue macrophages, which are the major cause of inflammation because they produce a type of protein called cytokine. The excess fats that cannot be stored in the adipose tissue spread to their surroundings, and when they come in contact with cytokines, that is when the inflammation springs. By targeting the inflammation, which is the root cause of obesity, the treatment for obesity is made possible. There have been several clinical studies that have highlighted the significance of inflammation regarding obesity, but few therapeutic approaches have been suggested. Through his research, Kim and his students have proposed a therapeutic strategy of targeted gene delivery that could safely treat the disease without any side effects. This strategy is also favorable in treating type 2 diabetes, which primarily occurs as a result of obesity. It is preventable by staying at a normal weight through regular exercise or dietary changes. This could also be the way to prevent obesity as well, which, in other words, means that the cause of the two diseases have the same outset, which is the inflammation within the tissues due to being overweight. Therefore, Kim’s proposal of therapeutic approach for obesity can also treat type 2 diabetes. Targeted gene delivery strategy could kill two birds with one stone. Building on his current studies, Kim’s future research aims to create more formulas for drugs that could treat obesity. “Liposuction is an extremely dangerous surgery because it sucks the good fats as well. Obesity is surely preventable or even cured for those who are not severely obese. However, those who are super-obese, their genes could transform into obese genes and this can affect their children. So, the targeted gene delivery approach can optimally be used in the future.” Kim specifically chose the topic of inflammation of obesity because he wanted to find a narrow gate and open it wide. Since not many solutions for obesity inflammation have been discovered, he wanted to delve into the studies of this topic and create a cure for the countless people waiting for treatment. Kim always aspires to study and research on topics that is subject to a breakthrough outcome. "I am interested in finding cures for diseases that do not have many treatments." Jeon Chae-yun Photos by Kabg Cho-hyun

2017-11 28

[Academics][Excellent R&D] Inventing Eyes for Robots

Augmented Reality, self-driving cars, and facial recognition are no longer a technology of future. Such advanced technologies are deep in our daily lives. In order for machines to properly function as they are meant to, they need something called ‘machine vision’. Machine vision (MV) is the technology and method used to provide imaging-based automatic inspection and analysis for such applications as automatic inspection, process control, and robot guidance, usually in industry. And the field that encompasses the subject is Computer Vision, which Lim majors. For December’s Researcher of the Month, News H interviewed Lim Jong-woo (Professor, Department of Computer Science) who recently won a major government project to acquire the source technology for such field. Lim is enthusiastically explaining how the technology can be applied in real lives. For example, with the structure modeling, calculating the altitude of a person's eye level (when wearing an AR/VR glasses) would be possble. The final goal of this four-year project is to develop a high-level video situation recognition technology based on structural modeling and geometrical analysis of images acquired in extremely congested situations such as the real environment. Structural modeling of a video means to draw lines and actually structure the surrounding environment within the video, either in a two-dimensional or three-dimensional form. Up to current technology, a system can process a single object in the video or occasionally multiple objects. However, it is not yet developed for computers to recognize and analyze a ‘congested’ video with dozens of moving objects, which is often the case in real life footage. “If developed further enough, a computer would be able to track irregular paths taken by a suspect from CCTV video and alert us,” mentioned Lim. (Left) Estimation of the structure of a space through existing technology (Right) Provisioned result of structure estimation (Photo courtesy of Lim) One of the ultimate goals of the project is to also integrate multi-object detection and tracking with the environment. “There are a lot of people trying to integrate detection and tracking technology,” said Lim. Because it is highly improbable for researchers to set a model human face for the computer to detect all human faces, integrating such technology with tracking a moving person is even more intricate and difficult. Nevertheless, if it does become reality, computers will be able to read the context of a specific video. For instance, because they can recognize each person, it would be able to write a storyline and understand relationships between characters in a show or a movie. As mentioned in the earlier part of the article, computer vision is a crucial part of augmented reality and autonomous cars. In the case of AR, the computer must be able to structure its environment to decide where to put the virtual object. Also, by such mapping, the machine can change its perspective in accordance with the user’s change of perspective. Furthermore, autonomous cars require even higher accuracy of computer vision in order to detect obstacles and prevent unwanted accidents. Unlike the facial detection of a camera app on our cellphone which is not really a matter of life and death, technology related to transportation has higher standards for that reason. "I aim to research for use, rather than a reasearch for research." Another surprising aspect of this research project plan is that the team will upload their findings on the web, free of charge as an open-source. When asked why not commercialize it, Lim answered “It is mutually beneficial for us to have the crowd test our algorithm and give feedback to us, as we cannot test it in every environment. Also, it is a trend to release algorithms open-source, because most of them fall short to be commercialized yet.” The research has begun this August and will be continued until the end of 2020. News H is looking forward to observing Lim’s progress and the social impact his team will bring. Kim So-yun Photos by Choi Min-ju