The effectiveness of large language models (LLMs) in conversational AI is hindered by their reliance on single-turn supervised fine-tuning (SFT) data, which limits contextual coherence in multi-turn dialogues. Existing methods for generating multi-turn dialogue data struggle to ensure both diversity and quality in instructions. To address this, we propose Review-Instruct, a novel framework that synthesizes multi-turn conversations through an iterative "Ask-Respond-Review" process involving three agent roles: a Candidate, multiple Reviewers, and a Chairman. The framework iteratively refines instructions by incorporating Reviewer feedback, enhancing dialogue diversity and difficulty. We construct a multi-turn dataset using the Alpaca dataset and fine-tune the LLaMA2-13B model. Evaluations on MT-Bench, MMLU-Pro, and Auto-Arena demonstrate significant improvements, achieving absolute gains of 2.9\% on MMLU-Pro and 2\% on MT-Bench compared to prior state-of-the-art models based on LLaMA2-13B. Ablation studies confirm the critical role of the Review stage and the use of multiple Reviewers in boosting instruction diversity and difficulty. Our work highlights the potential of review-driven, multi-agent frameworks for generating high-quality conversational data at scale.

A personal, guided tour to the best scoops and stories every day in The Wall Street Journal. Dr. Frederick P. Brooks Jr. liked building things, first laying foundations for modern computer systems at International Business Machines Corp. and later at the University of North Carolina, where he started the computer-science department. Dr. Brooks managed the development of IBM's System/360 family of compatible mainframe computers and then the software system that went with them during the 1960s. The computers became some of IBM's most popular models of the era, offering customers a choice of big or small computers with different processing speeds that could be used for both business and scientific tasks. The system was easy to expand since all the hardware ran off the same software, a departure from other systems that required software reprogramming when computers were added.

TuSimple Holdings Inc. co-founder Mo Chen has taken control of the self-driving trucking company as federal authorities continue to investigate TuSimple's relationship with Mr. Chen's other startup, a Chinese hydrogen-trucking company. A TuSimple filing with the Securities and Exchange Commission on Wednesday shows that Mr. Chen has 59% of the voting power at the San Diego-based company, giving him control as of Nov. 9, a day before the company announced it had ousted its board of directors. Mr. Chen acquired the stake through stock purchases using his family trust and British Virgin Islands-based entities, according to the securities filing. TuSimple's newly appointed chief executive officer, Cheng Lu, said, "We have a strong sense of urgency to put our company back on track and regain trust from all stakeholders." A weekly digest of tech reviews, headlines, columns and your questions answered by WSJ's Personal Tech gurus.

Ouster and Velodyne, two lidar companies, have agreed to a merger in an all-stock transaction, the companies said Monday. Both Ouster and Velodyne will maintain a 50% stake in the new company, according to the agreement that was signed on November 4. The merger comes as many in the industry, including autonomous vehicle technology company Cruise's CEO Kyle Vogt, have been expecting another round of consolidation in the lidar space. That's in part because there are too many lidar companies for how many OEMs are implementing the sensor for autonomous driving applications. It's also because many of these companies, including Ouster and Velodyne, went public via special purpose acquisition (SPAC) at potentially inflated valuations that were based on projected revenue, not actual revenue. Earlier this year, Velodyne acquired AI and lidar company Bluecity.ai,

Shin Dong-bin, the chairman of Lotte Group, and Tim Steiner, the CEO of Ocado Group, were both at the signing ceremony, which took place at Lotte World Tower in Seoul. Lotte Shopping announced that it has signed a partnership agreement with Ocado, a global retail technology company based in Britain, to enhance its online grocery solutions in Korea. The company will invest 1 trillion won ($705,060,000) by 2030 in "smart logistics" that focuses on fresh food to lead the 135 trillion won domestic online grocery market. Under the terms of the deal, Lotte Shopping will be able to use the Ocado Smart Platform (OSP) for all of its online shopping. OSP is a technology solution that covers the whole process of buying fresh food online, from attracting customers through mobile apps to delivering orders.

SINGAPORE--American workers hold key positions throughout China's domestic chip industry, helping manufacturers develop new chips to catch up with foreign rivals. Now, those workers are in limbo under new U.S. export control rules that prohibit U.S. citizens from supporting China's advanced chip development. At least 43 senior executives working with 16 publicly listed Chinese semiconductor companies are American citizens, according to an examination of company filings and official websites by The Wall Street Journal. Many of them hold C-suite titles, from chief executive to vice president and chairman. Almost all of the executives moved to China's chip industry after spending years working in Silicon Valley for U.S. chip makers or semiconductor equipment firms, according to the companies' filings.

Mark Minevich is a highly regarded and trusted Digital Cognitive AI Strategist, Artificial Intelligence expert, Global Social Innovation and Technology Executive, UN Advisor, Leading Author and Columnist, Private Investor/Venture Capitalist, and the principal founder and President of Going Global Ventures. He is an award-winning technology executive and has published two books and over 40 articles on AI, Industry 4.0, IoT. Mark is newly appointed Chairman of the Executive committee of AI for Good Foundation. Mark is a Chief Digital Strategist at the International Research Centre for AI, under the auspices of UNESCO. Currently, he serves as the strategic advisor and Global ambassador to the CEO and Chairman of New York based Amelia/ IPsoft Inc.

Scopus: With the rapid development of medical imaging techniques, artificial intelligence (AI) and radiomics have been heralded as the frontiers in medical imaging (MI). AI in MI is the science and engineering of making intelligent imaging machines, especially intelligent computer programs for clinical practices. While the radiomics refers to the high-throughput extraction of a large number of imaging and genetic features from multi-modality data sets and characterizes the region of interests (ROIs) for further analyses of grading, classification, predication, planning and prognosis assessment. The ultimate goal of AI and Radiomics in MI is to improve patient outcomes for better prevention, diagnosis, and treatment of diseases. Therefore, the aim of this special issue is willing to provide the readers with an up-to-date research progress and future development of this field in order to help improve human health.

America must work with rival nations to develop international norms for developing technologies such artificial intelligence or face increasingly difficult challenges in tackling misinformation and cyberwarfare, experts have said. "I like to think of this as sort of where things were 20 years ago in tech, where we were incredibly naïve," said Eric Schmidt, former Google CEO and current Chairman of the National Security Commission on Artificial Intelligence, said Friday at the Aspen Security Forum. "I was very naive about the impact of what we were doing. I now understand that information is everything: It's incredibly powerful." Much of the security forum focused on various challenges the United States and western allies face at the international level from rival nations Russia, China and Iran.

Gen. Mark Milley tells graduates of the US Military Academy to prepare West Point military academy graduates to prepare for increasingly dangerous world. Gen. Mark Milley told cadets graduating from U.S. Military Academy West Point Saturday to be prepared for increasing risk of global conflict and a host of new weapons technologies in their careers. "The world you are being commissioned into has the potential for a significant international conflict between great powers. And that potential is increasing, not decreasing," Milley, the chairman of the Joint Chiefs of Staff, told the cadets at the 2022 commencement ceremony in West Point, New York. "And right now, at this very moment, a fundamental change is happening in the very character of war. We are facing right now two global powers, China and Russia, each with significant military capabilities, and both who fully intend to change the current rules based order," Milley said.