#Japan #Shinjuku #Eilog #AI English Diary #Caf Analysis

AI English Diary 'Eilog' Surpasses 10,000 Uses

Sankei Human Learning Co., Ltd., headquartered in Shinjuku, Tokyo, proudly announces that their service, "AI English Diary Eilog," aimed at middle and high school students, has surpassed a remarkable milestone of 10,000 total uses since its official launch in April 2026. This innovative service not only encourages students to write in English but also combines various features that support comprehensive learning.

Under the supervision of Professor Yukio Tokuno from Tokyo University of Foreign Studies, a detailed analysis was conducted on diary entries using the CAF (Complexity, Accuracy, Fluency) methodology. The results confirmed significant advancements in students' English composition skills, highlighting the effectiveness of the program.

Highlights of 'Eilog'

• - Since its launch, over 1,800 students across 10 schools have collectively utilized the service more than 10,000 times, which includes various related features such as composition drills, reading aloud, and conversation practice.
• - 'Eilog' offers three selectable diary formats, allowing students to choose from standard, fill-in-the-blank, and dialogue forms that suit their individual levels and preferences, ensuring tailored learning experiences.
• - The program provides immediate feedback through AI-powered assessment, enhancing the quality of students’ writing.

Comprehensive Output Functions

In addition to diary entries, the service features an English composition drill that enables teachers to assign specific texts for group writing exercises. Students also benefit from reading aloud tasks, which help in improving their overall English expression capabilities.

A Closer Look at the CAF Analysis

The CAF analysis performed by Professor Tokuno focused on three key indicators:
1. Complexity - This measures the sophistication of sentence structures used by students.
2. Accuracy - This evaluates the error rate in grammar, spelling, and other linguistic elements.
3. Fluency - This captures the fluidity of writing based on the total word count.

In the initial assessments, data gathered from 3,135 diary entries was analyzed, revealing encouraging results:

• - Over the period from April to July 2026, overall writing proficiency increased by 0.14 points.
• - Notably, the complexity of students' writings increased by 0.29 points, reflecting their willingness and skill to utilize advanced grammatical structures such as relative clauses and perfect tenses.

Future Directions

Sankei Human Learning remains committed to continuously evaluating the evolution of students' writing skills. Future projects aim to develop effective teaching methods for higher-level grammatical structures, establish key focus areas based on student proficiency, and explore the synergy between online speaking classes and the writing curriculum.

Free Trial for Schools

To further support educational institutions, 'Eilog' is currently offering free trials for schools interested in integrating this innovative service into their curriculum. Interested parties can easily register via the official site.

About Sankei Human Learning

As part of a collaborative effort backed by the Sankei News Group, which consists of companies dedicated to enhancing education, work support, and global partnerships, Sankei Human Learning aims to provide safe, high-quality online English learning services. Since the inception of this initiative, over 500 corporations and 200 educational institutions have benefited from the structured lessons, involving Filipino, native, and Japanese instructors.

The commitment of the Sankei Group to educational excellence continues to drive advancements in teaching methodologies and learning outcomes, as they tackle critical challenges in the education sector and beyond.

For more information, visit Sankei Human Learning's official website.