2025.10.17
A simple comparison of Chat GPT 5 Thinking and Gemini 2.5 pro
We compared Chat GPT 5 Thinking and Gemini 2.5 Pro on a simple task explained below. Incidentally, the image above was generated by Gemini (and cropped from it). The image below is a warm message written by the housekeeping staff as a thank you for a tip when I stayed at a hotel. Regarding what the name written at the end should be read as, a human would likely make…
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2025.10.17
switch 2
Switch 2 has arrived in the lab! We rearranged the student room this spring, creating a large open space. It was great fun gathering there to hang out and get hyped up with some games!
2025.9.30
Research Presentation by Mizuki Hisatomi at ACM UIST 2025
Her research concerns a method for automatically grouping web browser tabs that are related to the same task, in order to solve the problem of finding the desired tab becoming difficult when many tabs (e.g., several dozens) are open simultaneously in a web browser. Existing research includes methods such as creating a classifier using machine learning that, given a sequence of tab transitions, determines where a transition is to another…
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2025.9.18
Presentation of the research by Masafumi Iwanaga at ACM Hypertext 2025
We presented our research findings at the ACM Conference on Hypertext and Social Media 2025. This research focuses on investigating whether friend recommendation in social media accelerates the formation of echo chambers. In a simulation starting from a subgraph of the actual X (formerly Twitter) follow graph, we compared four types of friend recommendation methods: Friend recommendation based on the similarity of followees’ topics (CM) Friend recommendation based on Most-Common-Neighbors…
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2025.6.26
Two badgers near Building 7
Two badgers were seen near Building 7. They don’t seem very afraid of people; they approached us a little and even crossed right by our feet. A video is also available.
2025.4.25
We rearranged the student office
We rearranged the student office by moving two desks that were positioned in the center, creating a large open space in the middle. before after
2025.4.25
Welcom Party for New Members (2025)
On April 14, 2025, we held a welcome party for the new members of the Tajima Laboratory. We are pleased to welcome two new fourth-year undergraduate students, Mr. Takumi Umehara and Mr. Mitsuhiro Tanabe, bringing the total number of students to seven. With the addition of these new members, we anticipate another energetic and lively year for the lab. We look forward to working together as a team and dedicating…
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2025.4.1
Farewell Party (2025)
On March 24, 2025, we held a farewell party for the members graduating from our laboratory. The five graduating members are Zhang, Ko, Ling, Ogawa, and Sasaki. The party was held at the Izakaya “Zipangu” in Sanjo-Kiyamachi. To celebrate their graduation, they were presented with tumblers bearing the laboratory’s name. We sincerely congratulate the five of you on your successful graduation. We wish you the best of luck in your…
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2025.3.19
Students gave presentation at DEIM2025
Three students from the lab gave presentations on their research at DEIM2025 (a domestic forum without peer-review). This year, the following three students gave presentation. Liuyun Ling: “Identifying Accounts Corresponding to Hashtags on Social Media through User Graphs” Souta Ashikaga: “Software Library Recommendation Based on Relevance Estimation to Domain Specific Categories Using Metadata Similarity and Co-occurrence” Kenta Taniguchi: “Predicting player churn by taking into account other gameplay patterns” DEIM of…
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2024.12.18
Presentation of the research by Masafumi Iwanaga at IEEE BigData 2024
This presentation was about a method of suggesting the topic to SNS users. However, it is not about topic recommendations to the orginary users, but rather about suggesting the next topic for users who act as influencers. For example, a user who has gained a steady number of followers through game streaming can’t just keep playing the same game forever to maintain their audience. They eventually need to shift to…
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2024.12.3
Research Presentation by Yixin Zhang at ACM Multimedia Asia 2024
Yixin Zhang of our research group gave presentation at ACM Multimedia Asia 2024. This presentation focused on ingredient recognition from images in recipe data that describe cooking procedures. Recipe data consists of a sequence of descriptions for each cooking step. As a result, the image for each step often contains ingredients that also appeared in previous steps. However, because recipes can include branching and merging steps, ingredients do not always…
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Eisaku Yoshikawa of our group gave presentation at ACM International Conference on Multimedia Retrieval (ICMR) 2024. The presentation focused on “exclusion queries” in image retrieval. In this context, exclusion queries refers to the queries to search for images related to “A” but not to “B,” similar to how Web search engines interpret queries like “A -B.” In recent years, automatic image captioning (automatic generation of text descriptions of images) has…
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2024.5.17
Presentation by Hirotaka Nagashima at WWW Conference 2024
Hirotaka Nagashima from our group gave a presentation at The Web Conference 2024. The presentation was about identification of descriptions that indicate the “expiration time of information value.” For example, suppose a text includes phrases like those below. “Please submit application by 17:00 tomorrow. “Live streaming starting 19:00 tonight!” The informational value of such a text must largely decrease after the time described in these descriptions. Therefore, if we can…
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