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Minami Lab
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The lab studies how young children acquire words and the fundamental algorithms of information systems.
AboutAbout the lab
Exploring how language is learned and the foundations of handling information.
The Minami-Koga Lab studies mechanisms that learn and adapt in fields such as images, communication networks, speech, and language, centered on the algorithms that form the foundation of information systems.
On Professor Minami's side, the lab works on how young children learn words, predicting abusive speech and wandering in elderly people with dementia, and support for people writing papers.
On Associate Professor Koga's side, the lab handles algorithms such as similarity search, which quickly finds similar data, and clustering of large-scale data.
Each student has a research booth separated by a partition, and at the weekly lab seminar, all master's and doctoral students give presentations.
Key terms
- Vocabulary acquisition
- The process by which young children link words to the objects they refer to and increase the number of words they can use
- BPSD
- Behavioral and psychological symptoms that appear in people with dementia, such as abusive speech, violence, and wandering
- Similarity search
- Processing that finds, within a large amount of data, items similar to given data
ResearchResearch themes
The Minami-Koga Lab studies, from both theoretical and practical sides, mechanisms that learn from large amounts of data and adapt to their environment, centered on the algorithms that form the foundation of information systems. Applications include speech recognition, spoken dialogue systems, and automatic analysis of still images and video.
*Illustrative imageHow Young Children Acquire Vocabulary
Through analysis of large-scale data and machine learning, the lab investigates the process by which young children link words to objects and expand their vocabulary. In deep reinforcement learning models that focus on parent-child joint attention and understanding of intention, mechanisms such as the acquisition of implicit knowledge have been confirmed to emerge.
Detecting BPSD in Dementia
The lab takes part in a Tokyo Metropolitan Government study on elderly people with dementia, working on predicting abusive speech, violence, and wandering using biometric and behavioral sensor data collected from care facilities and elsewhere. It also participates in an AMED project, studying automatic creation of care records through speech recognition.
*Illustrative imageSupporting Paper Authors
To reduce the burden on researchers of searching for related papers, the lab analyzes the papers themselves with natural language processing. It extracts sections and citation relationships from paper data to build its own dataset, and works on estimating which sentences need citations and automatically generating related-work sections.
*Illustrative imageSimilarity Search and Clustering
So that complex information systems can be handled systematically rather than by experience and intuition, the lab studies the underlying algorithm theory and applied systems. Topics include fast similarity search, typified by hashing, online algorithms for real-time processing, and clustering of large-scale data.
MembersFaculty
The members of the Minami-Koga Lab are faculty and doctoral, master's, and undergraduate students.
- ProfessorYasuhiro Minami
- Associate ProfessorHisashi Koga
- Assistant ProfessorZhenjiang Zhao
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Toddler with book - Picture Primer (circa 1910)” 作者不詳 / Public domain (cropped)
- How Young Children Acquire Vocabulary: “Close-up of child reading a book” Widad.sirkhotte / CC BY 4.0 (cropped)
- Supporting Paper Authors: “Typewriter-12 hg” Hannes Grobe / CC BY-SA 4.0 (cropped)
- Similarity Search and Clustering: “Book Shelves at Bonna Baana Childrens Library, Bukalabi Village, Nakaseke” Micheal Kaluba / CC BY-SA 4.0 (cropped)
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