information+and+communications
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Professor Hojong Chang’s Research Team Wins ISIITA 2020 Best Paper Award
The paper written by Professor Hojong Chang’s research team from KAIST Institute for IT Convergence won the best paper award from the International Symposium on Innovation in Information Technology Application (ISIITA) 2020, held this month at Ton Duc Thang University in Vietnam.
ISIITA is a networking symposium where leading researchers from various fields including information and communications, biotechnology, and computer systems come together and share on the convergence of technology.
Professor Chang’s team won the best paper award at this year’s symposium with its paper, “A Study of Single Photon Counting System for Quantitative Analysis of Luminescence”. The awarded paper discusses the realization of a signal processing system for silicon photomultipliers.
The silicon photomultiplier is the core of a urinalysis technique that tests for sodium and potassium in the body using simple chemical reactions. If our bodily sodium and potassium levels exceed a certain amount, it can lead to high blood pressure, cardiovascular problems, and kidney damage.
Through this research, the team has developed a core technique that quantifies the sodium and potassium discharged in the urine. When the reagent is injected into the urine, a very small amount of light is emitted as a result of the chemical reaction. However, if there is a large amount of sodium and potassium, they interrupt the reaction and reduce the emission. The key to this measurement technique is digitizing the strength of this very fine emission of light. Professor Chang’s team developed a system that uses a photomultiplier to measure the chemiluminescence.
Professor Chang said, “I look forward for this signal processing system greatly helping to prevent diseases caused by the excessive consumption of sodium and potassium through quick and easy detection.”
Researcher Byunghun Han who carried out the central research for the system design added, “We are planning to focus on miniaturizing the developed technique, so that anyone can carry our device around like a cellphone.”
The research was supported by the Ministry of Science and ICT.
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2020.02.27 View 8480 -
Object Identification and Interaction with a Smartphone Knock
(Professor Lee (far right) demonstrate 'Knocker' with his students.)
A KAIST team has featured a new technology, “Knocker”, which identifies objects and executes actions just by knocking on it with the smartphone. Software powered by machine learning of sounds, vibrations, and other reactions will perform the users’ directions.
What separates Knocker from existing technology is the sensor fusion of sound and motion. Previously, object identification used either computer vision technology with cameras or hardware such as RFID (Radio Frequency Identification) tags. These solutions all have their limitations. For computer vision technology, users need to take pictures of every item. Even worse, the technology will not work well in poor lighting situations. Using hardware leads to additional costs and labor burdens.
Knocker, on the other hand, can identify objects even in dark environments only with a smartphone, without requiring any specialized hardware or using a camera. Knocker utilizes the smartphone’s built-in sensors such as a microphone, an accelerometer, and a gyroscope to capture a unique set of responses generated when a smartphone is knocked against an object. Machine learning is used to analyze these responses and classify and identify objects.
The research team under Professor Sung-Ju Lee from the School of Computing confirmed the applicability of Knocker technology using 23 everyday objects such as books, laptop computers, water bottles, and bicycles. In noisy environments such as a busy café or on the side of a road, it achieved 83% identification accuracy. In a quiet indoor environment, the accuracy rose to 98%.
The team believes Knocker will open a new paradigm of object interaction. For instance, by knocking on an empty water bottle, a smartphone can automatically order new water bottles from a merchant app. When integrated with IoT devices, knocking on a bed’s headboard before going to sleep could turn off the lights and set an alarm. The team suggested and implemented 15 application cases in the paper, presented during the 2019 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2019) held in London last month.
Professor Sung-Ju Lee said, “This new technology does not require any specialized sensor or hardware. It simply uses the built-in sensors on smartphones and takes advantage of the power of machine learning. It’s a software solution that everyday smartphone users could immediately benefit from.” He continued, “This technology enables users to conveniently interact with their favorite objects.”
The research was supported in part by the Next-Generation Information Computing Development Program through the National Research Foundation of Korea funded by the Ministry of Science and ICT and an Institute for Information & Communications Technology Promotion (IITP) grant funded by the Ministry of Science and ICT.
Figure: An example knock on a bottle. Knocker identifies the object by analyzing a unique set of responses from the knock, and automatically launches a proper application or service.
2019.10.02 View 25336 -
KAIST International Students Organize KAIST ONE Program
International Students at KAIST are running a program called “KAIST ONE” (Overseas Networking Exchange) in order to promote an active exchange between students and to present their cultures.
Originally an international cultural activity at the ICU (then the Information and Communications University) in 2007, the program changed its name to “KAIST ONE” and was continued after the merging of the university with KAIST. Students of about 40 different countries have participated to date, and each annual event attracts more than 150 students.
Over 700 international students from 70 different countries around the world spontaneously organize and manage the KAIST ONE program, which is run five times this semester, every other Thursday from 7p.m. to 9p.m. at the KAIST International Center.
The 11th of last month and the 1st of this month witnessed an enthusiastic response from about 150 participants who joined the Columbian and the Saudi Arabian students in introducing their cultures, presenting traditional cultural performances, and sharing traditional foods.
The next in line are Danish, Ugandan, and Cameroonian students who are set to have their turns on this month’s 15th, 29th, and next month’s 6th, respectively.
Also notable is the active attention and support from foreign embassies such as the participation of Tunisian, Brazilian, Pakistani, Azerbaijani, Thai, and German ambassadors in the program since last year to provide food and introductory guides to cultures.
The director of this year’s program, Karim Charfi (Tunisian, 3rd year Electrical Engineering) said, “During the selection stage of each semester, everyone competes for the chance to present their country,” and “KAIST ONE has established itself as a unique and exotic cultural event at KAIST since it networks about 40 of the relatively less known countries such as Uganda, Cameroon, Tunisia, and Chile and the people with diverse cultures.”
The supervisor of the program, Chang Dong Yoo of the Office of Special Projects and Institutional Relations said, “KAIST ONE is an opportunity for international students to acquaint people with their cultures, and it is also a site of cultural exchange and of building friendships among KAIST students and international students,” and “we plan to extend the event such that not only the KAIST members but also the local residents can join in.”
The program welcomes KAIST students as well as the general public.
2012.12.21 View 7334 -
KAIST, ICU Agree to Merge
KAIST and the Information and Communications University, a state-run institution, decided to merge as they signed a memorandum of understanding for unification at the Westin Chosun Hotel in Seoul on May 23.
The MOU signing ceremony was attended by representatives of the two universities and related high-ranking government officials from the Ministry of Knowledge Economy and the Ministry of Education, Science and Technology.
Under the agreement, the two universities will form a joint committee to complete the merger process by the end of this year. According to the MOU, ICU will become the "IT Convergence Campus" (ICC) which will include KAIST"s IT related departments and research institutes. The projected ICC will be headed by a KAIST vice president, KAIST authorities said.
With the merger, the number of KAIST students in the IT area will increase to 2,850 from 1,951, while the number of IT-related faculty members will rise to 157 from 99.
ICU was established in 1997 by the Korean Ministry of Information and Communication, the Electronics and Telecommunications Research Institute, and some major Korean IT companies. Located in Daedeok Science Town in Daejeon where KAIST is also situated, ICU started as a graduate school and added the undergraduate course in 2002. It currently has a total enrollment of 1,121 students -- 481undergraduate students, 324 graduate students and 316 doctorate students.
KAIST said that it will treat ICU professors and staff equally after the merger. This year, the two universities will separately conduct freshmen recruitment procedures for 2009, but will then unify recruitment.
The unification of the two institutions is expected to give KAIST the competitive edge through a larger faculty, student body, and expanded facilities.
The agreement put an end to extended negotiations for merger which started in July 2006. The talk of merging the two universities surfaced when the Board of Audit and Inspection concluded that the government"s direct financial support for ICU was unlawful as ICU was established as a private school. When ICU was established in 1997, the Ministry of Information and Communication provided 200 billion won as the basic endowment and has continually provided 10 billion won in operating funds each year.
2008.05.22 View 13407
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KAIST Takes Merging Steps with ICU
Plans to begin the merging of Korea Advanced Institute of Science and Technology (KAIST) and Information and Communications University (ICU) have emerged.
ICU board members and Ministry of Information and Communications (MIC) officials held a meeting at Lotte Hotel, Seoul, on November 21st. The two parties agreed upon the merging of KAIST and ICU; and an interim organization to carry out the merging procedures was to be established. In addition, a preliminary road-map was presented during the meeting.
In the event that a company would show a willingness to financially support ICU, the parties agreed to take this path into consideration as well.
Also at this meeting, the resignation of ICU President Huh Unna was accepted by the board members of ICU. President Huh and the executive board have opposed any proposals of unification between the two universities. The president called for an independent ICU in response to MIC’s withdrawal of funding.
On November 27th, ICU Electrical Engineering Professor Hyuck Jae Lee was appointed as ICU president.
The talk of merging the two universities surfaced when the Board of Audit and Inspection concluded that financial support of ICU from the government was illegal as ICU was established under the private school law exempting the institution from governmental support. When ICU was established in 1997, MIC provided 200 billion Korean Won and has continually supported the university financially with 10 billion Korean Won per year.
Both universities have not released official statements regarding the merging of the respective institutions.
ICU has a student body of about 400 undergraduate students and 600 graduate students. On the other hand, KAIST has a student body of around 3000 undergraduate students, 2000 graduate students, and 2000 doctorate students. Both institutions are located in Daejeon, Korea.
Talk of establishing a single-department IT-convergence university where ICU is currently located surfaced as a possible merging-concept by KAIST.
Organizations and groups opposing the unification of the two technology-related institutions are concerned with details of the merger, such as the personnel management of ICU professors. However, analyses demonstrate that the unification will give KAIST the competitive edge through a larger faculty, student body, and increased facilities.
In July, an in-house poll was conducted at ICU and the results showed that 15 percent of graduate school students and undergraduate students were against the merger while 82.6 percent of undergraduate students and 84.8 percent of graduate students were in favor. 88.6 percent of ICU professors supported the unification of the two universities.By KAIST Herald on December, 2007
2007.12.21 View 12202