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Other Disclosures6046LINKBAL INC.Information and Communications, Services and Others

MiDATA, a subsidiary of リンクバル, and the University of Tokyo Market Design Center (UTMD) Announce Joint Research Results for the CoupLink Matching App

MiDATA and the University of Tokyo Market Design Center jointly researched and implemented ECDA, a new recommendation algorithm designed to curb the concentration of recommendations on popular users, for the CoupLink matching app. A pilot deployment in the Kanto region confirmed that it addressed excessive concentration and improved matching opportunities.

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Announced details

CoupLink (matching app)ECDA (Exposure-Constrained Deferred Acceptance; exposure-constrained deferred acceptance mechanism)
Applicable field (uses covered by this announcement)
Matching appsTwo-sided platformsJob sitesFreelance intermediation
What the company reported numerically
Quantitative Effects

Compared with CoupLink's previous method, addressed the excessive concentration of recommendations and likes among the top 0.1% of users.

Relationship between the counterparty and the company
LINKBAL INC.6046
Relationship with the Company

MiDATA, a subsidiary of リンクバル, and UTMD conducted joint research. リンクバル operates CoupLink, and MiDATA implemented the algorithm.

CounterpartyMarket Design Center, affiliated with the Graduate School of Economics, The University of Tokyo (UTMD)

7-3-1 Hongo, Bunkyo-ku, Tokyo. The center is headed by Professor Kojima Takehito (小島武仁) and is a research hub at The University of Tokyo focused on matching theory, auction theory and their practical implementation in society.

Impact on Business Performance

The successful demonstration is described as proof of the practical applicability of matching theory to structural issues affecting two-sided platforms, with plans to roll it out across individual businesses. The specific impact on revenue and profit is Not disclosed.

The company does not address Contract Value / Offering price.

Source (materials cited by the company)

arXiv

University of Tokyo Market Design Center (UTMD) website

Announced details
ItemDetails
Names of Products / Services CoveredCoupLink (matching app), ECDA (Exposure-Constrained Deferred Acceptance; exposure-constrained deferred acceptance mechanism)
CounterpartyMarket Design Center, affiliated with the Graduate School of Economics, The University of Tokyo (UTMD)
Counterparty overview7-3-1 Hongo, Bunkyo-ku, Tokyo. The center is headed by Professor Kojima Takehito (小島武仁) and is a research hub at The University of Tokyo focused on matching theory, auction theory and their practical implementation in society.
Relationship with the CompanyMiDATA, a subsidiary of リンクバル, and UTMD conducted joint research. リンクバル operates CoupLink, and MiDATA implemented the algorithm.
Applicable areaMatching apps, Two-sided platforms, Job sites, Freelance intermediation
Quantitative EffectsCompared with CoupLink's previous method, addressed the excessive concentration of recommendations and likes among the top 0.1% of users.
Impact on Business PerformanceThe successful demonstration is described as proof of the practical applicability of matching theory to structural issues affecting two-sided platforms, with plans to roll it out across individual businesses. The specific impact on revenue and profit is Not disclosed.
SourcearXiv, University of Tokyo Market Design Center (UTMD) website
Items this document does not state (10)
Contract ValueOffering priceContract DateLaunch dateAward/certification nameAwarding / certifying bodyRegistration number and expiry dateLocationLocation scaleUsage history

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The reasons the company gives

The company's own explanation, not something inferred from the numbers.

Under the previous recommendation method, recommendations and likes were concentrated on popular users, causing congestion, inefficiency and inequality, with ordinary users becoming less visible. MiDATA sought to address these issues by combining UTMD's matching theory with its AI implementation capabilities.

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MiDATA, a subsidiary of リンクバル, and the University of Tokyo Market Design Center (UTMD) Announce Joint Research Results for the CoupLink Matching App | LINKBAL INC. (6046) timely disclosure | Komori