在他的职业生涯, Bertsekas’研究跨越,并对,多个领域,产生了决定性影响，包括优化,控制,大规模计算,强化学习,和人工智能。他曾担任多家私营公司; 的顾问、多家科学期刊; 的编辑、出版公司, Athena Scientific; 的创始人以及总部位于伦敦的量化投资公司Bayforest Technologies, 的首席科学顾问。然而，, 他最持久的影响可能来自于他多产的著作和合着的 20 多本极具影响力的书籍, 专着, 和教科书,，以及他庞大的学生, 受指导者, 朋友, 和合作者网络。
Over the course of his career, Bertsekas research spanned, and had a definitive influence upon, several fields, including optimization, control, large-scale computation, reinforcement learning, and artificial intelligence. He served as a consultant to various private companies; an editor for several scientific journals; the founder of a publishing company, Athena Scientific; and chief scientific advisor of Bayforest Technologies, a London-based quantitative investment company. However, his most lasting impact may have come through his prolific authorship and co-authorship of over 20 highly influential books, monographs, and textbooks, and through his vast network of students, mentees, friends, and collaborators.
“Dimitri 在我的职业生涯中发挥了决定性作用,” 麻省理工学院 EECS 系主任 Asu Ozdaglar, 说道。 “I 在参加了他的非线性优化课程后决定改变我的研究重点。他为每个主题带来的概念清晰度和数学严谨性, 加上他将理论与重要问题联系起来的能力，奠定了一个基础，在接下来的几年里继续为我的学术工作提供信息。” 另一位前麻省理工学院学生, Jinane Abounadi, 现在麻省理工学院沙盒创新基金项目执行董事, 仍然记得 Bertsekas的指导是她在麻省理工学院学生时代的一大亮点MIT:“I 很幸运有迪米特里作为我的教授和顾问。我有机会向真正的大师学习优化,动态规划,和神经动态规划。”
“Dimitri played a defining role in my career,” says Asu Ozdaglar, department head of EECS at MIT. “I decided to change my research focus after taking his nonlinear optimization class. The conceptual clarity and the mathematical rigor he has brought to every topic, combined with his ability to connect theory to important problems established a foundation that has continued to inform my scholarly work in the years to follow.” Another former MIT student, Jinane Abounadi, now executive director of the MIT Sandbox Innovation Fund Program, still remembers Bertsekas tutelage as a highlight of her time as a student at MIT: “I feel so fortunate to have had Dimitri as my professor and advisor. I had the opportunity to learn about optimization, dynamic programming, and neuro-dynamic programming from a true master.”
“ 与 Dimitri 合作编写 [ 那本书] 是我学会写作的方法,” Shreve 说。 “I 从 Dimitri 那里了解到，如果您希望自己的研究得到认可,，您必须将其展示出来，以便其他人愿意阅读,，我学会了如何做到这一点。”
“Working with Dimitri on [that book] is how I learned to write,” says Shreve. “I learned from Dimitri that if you want to be recognized for your research, you must present it so others want to read it, and I learned how to do that.”
Bertsekas 解释风格的清晰和优雅将成为他的教育标志。 “每个人都认可迪米特里’作为作家的伟大才华,，但他远远超出了这一点,将整个主题组织成易于理解且组织良好的整体,”说罗伯特·加拉格,麻省理工学院电气工程名誉教授,他与Bertsekas合着了一本1987年的书，题为“数据网络。” “当时该领域正在迅速变化,，计算成本每两年减少两倍,，并且光纤传输即将出现。 Dimitri 和我各自只理解了这个领域的一部分,，其余的都是快速学习的经历。 Dimitri 是这个, 中的理想合作伙伴，能够快速将困难的概念转化为简单但准确的解释，并能够将我的知识与他的知识结合成一个可以理解的整体。”
The clarity and elegance of Bertsekas explanatory style would become his educational hallmark. “Everyone recognized Dimitri的 great talents as a writer, but he went far beyond that, organizing entire subjects into something that was understandable and a well-organized totality,” says Robert Gallager, professor emeritus of electrical engineering at MIT, who co-authored a 1987 book with Bertsekas entitled “Data Networks.” “The field was changing rapidly then, with a factor-of-two decrease every two years in computation costs, and with optical fiber on the horizon for transmission. Dimitri and I each understood only parts of this field, with the rest a fast-moving learning experience. Dimitri was the ideal partner in this, able to quickly translate hard concepts into simple but accurate explanations and able to combine my knowledge with his into an understandable whole.”
Bertsekas LIDS, 的亲密同事 Munther Dahleh, 记得, “ 一直让我印象深刻的是, 通过他的写作, 人们几乎可以听到迪米特里直接对读者说话。他的直觉,、思维清晰, 和独特的视角在他的书中得到了完美的体现。它们不仅反映了他深厚的技术贡献,，还反映了他对教学的热情以及他帮助他人深入理解该学科的愿望。 … 特别是, 他与 John Tsitsiklis 合着的关于神经动态编程的书是一部杰作。它预见并帮助定义了许多后来成为强化学习和近似动态规划核心的想法。”
Bertsekas close colleague in LIDS, Munther Dahleh, remembers, “what always struck me was that, through his writing, one could almost hear Dimitri speaking directly to the reader. His intuition, clarity of thought, and distinctive perspective come through beautifully in his books. They reflect not only his profound technical contributions, but also his passion for teaching and his desire to help others understand the subject at a deep level. … In particular, his joint book with John Tsitsiklis on neuro-dynamic programming is a tour de force. It anticipated and helped define many of the ideas that later became central to reinforcement learning and approximate dynamic programming.”
Tsitsiklis 本人深情地记得与 Bertsekas 共同写作的过程: “对于 Dimitri, 来说，研究是一种创造性的形式,，将工艺与我们通常所说的艺术的创造力相结合。” 艺术的定义及其实践是 Bertsekas 非常着迷的主题,，他在 2025 年的论文中详细探讨了这一主题, “Academia, 艺术, 和生活,” 尝试将创意工作有意义地分为三个广泛描述的角色— 技术员, 工匠, 和艺术家— 并探索这三种实践之间的重叠。除了清晰明晰的写作, Bertsekas 还以其强烈的图形眼光, 闻名，他不仅充分利用了这一天赋为所有教科书绘制插图,，而且还为他的环球旅行拍摄了令人难忘且富有艺术灵感的照片。
Tsitsiklis himself remembers the co-writing process with Bertsekas fondly: “For Dimitri, research was a creative form, combining craftsmanship and the creativity that we usually call art.” The definition of art and its practice was a subject of great fascination for Bertsekas, and one that he explored at length in his 2025 essay, “Academia, Art, and Life,” an attempt to meaningfully categorize creative work into three broadly descriptive roles — technician, craftsman, and artist — and to explore the overlaps between the three types of practice. Beyond his clear and lucid writing, Bertsekas was known for his strong graphic eye, a talent which he put to good use not only developing illustrations for all his textbooks, but in taking memorable and artistically inspired photographs of his worldwide travels.
长期合作者兼朋友 David Castañón, 现在是波士顿大学电气和计算机工程教授, 记得 Bertsekas 是一位真正的文艺复兴时期的人，他从无数来源中汲取灵感: “Dimitri 对算法思想, 理论和实践都有着永不满足的好奇心。其中许多想法都受到新技术(并行计算机,强化学习,下棋算法)...每当我们见面,迪米特里都会介绍感兴趣的新概念;我们会制定理论细节,设计并进行数值实验,并生成结果。然后,迪米特里’的艺术天才将接管:设计图形来说明概念,排版文本和图形以完成论文。他具有对复杂概念进行简洁解释的罕见天赋。这些才华催生了他的出版公司 Athena Scientific,，在那里 Dimitri 和他的合著者创作了具有广泛吸引力的精美教学书籍。” Tsitsiklis 同意, 指出, “ Dimitri, [research] 是关于发现意义, 揭示'right 看待主题的方式, 丰富它,并通过他多产的著作以水晶般清晰的方式传达它。”
Longtime collaborator and friend David Castañón, now a professor of electrical and computer engineering at Boston University, remembers Bertsekas as a true Renaissance man who drew inspiration from countless sources: “Dimitri had an insatiable curiosity for algorithmic ideas, both theory and practice. Many of these ideas were inspired by new technologies (parallel computers, reinforcement learning, chess-playing algorithms) ... Whenever we met, Dimitri would introduce new concepts of interest; we would work out theoretical details, design and conduct numerical experiments, and generate results. Then, Dimitri的 artistic talents would take over: designing graphics to illustrate concepts, typesetting text and figures for the papers to be completed. He had a rare gift for generating concise explanations of complex concepts. These talents led to his publishing company Athena Scientific, where Dimitri and his coauthors generated elegant pedagogical volumes with broad appeal.” Tsitsiklis agrees, noting, “for Dimitri, [research] was about discovering meaning, to uncover the 'right way to view a subject, enrich it, and convey it in a crystal-clear manner through his prolific writings.”
这种影响力可以通过 Bertsekas 在其职业生涯中积累的奖项和荣誉的数量, 来衡量，其中包括 1997 年 INFORMS 运筹学与计算机科学神经动态编程接口卓越研究奖, 2001 年 ACC John R. Ragazzini 教育奖, 2009 年 INFORMS 说明性写作奖, 2014 年 ACC Richard E. Bellman 控制遗产奖“对系统和控制中基于确定性和随机优化的方法基础的贡献,” 2014 年 Khachiyan 优化终身成就奖, SIAM/MOS 2015 年 George B. Dantzig 奖, 和 2022 年 IEEE 控制系统奖。他与合著者 John Tsitsiklis, 因其研究专着 “Parallel and Distributed Computation” 和 “Neuro-Dynamic Planning 的贡献而被授予 2018 年 INFORMS John von Neumann 理论奖。” 于 2001 年, Bertsekas 当选向美国国家工程院授予“对基础研究的开创性贡献,优化实践和教育/控制理论。”
That influence can be measured by the sheer number of awards and honors Bertsekas accumulated over the course of his career, including the INFORMS 1997 Prize for Research Excellence in the Interface Between Operations Research and Computer Science for Neuro-Dynamic Programming, the 2001 ACC John R. Ragazzini Education Award, the 2009 INFORMS Expository Writing Award, the 2014 ACC Richard E. Bellman Control Heritage Award for “contributions to the foundations of deterministic and stochastic optimization-based methods in systems and control,” the 2014 Khachiyan Prize for Life-Time Accomplishments in Optimization, the SIAM/MOS 2015 George B. Dantzig Prize, and the 2022 IEEE Control Systems Award. Together with his coauthor John Tsitsiklis, he was awarded the 2018 INFORMS John von Neumann Theory Prize for the contributions of the research monographs “Parallel and Distributed Computation” and “Neuro-Dynamic Programming.” In 2001, Bertsekas was elected to the U.S. National Academy of Engineering for “pioneering contributions to fundamental research, practice and education of optimization/control theory.”
然而，, 对 Bertsekas 影响的更个人化衡量可以通过他的朋友, 同事, 和以前的学生一致记住他的温暖和感情来衡量。合著者 John Tsitsiklis 写道, “I 最幸运的是成为他的学徒之一,，并享受了他的温暖和友谊。” 他以前在 MIT, Angelia Nedich, 的学生后来成为 Bertsekas 在亚利桑那州立大学的同事。她记得: “Dimitri 是一个非凡的头脑, 一个有天赋的灵魂，为我们寻求者照亮, 但同时他非常谦虚，因为他享受生活的简单时刻, 喝一口好咖啡, 一口美味的食物, 或在我们西南公路旅行时喝一杯辛辣的玛格丽塔。这就是我喜欢记住他的方式。”
However, a more personal measure of Bertsekas impact can be taken by the warmth and affection with which his friends, co-workers, and former students uniformly remember him. Co-author John Tsitsiklis wrote, “I was most fortunate to be one of his apprentices, and to have lived his warmth and friendship.” His former student at MIT, Angelia Nedich, later became Bertsekas colleague at Arizona State University. She remembers: “Dimitri was an exceptional mind, a gifted soul that shed light for us seekers, but at the same time he was very humble as he enjoyed simple moments of life, a sip of good coffee, a bite of flavorful food, or a glass of spicy margarita on our road trips in Southwest. That is how I love to remember him.”
前学生本杰明·范·罗伊, 现在是斯坦福大学的教授, 写了有关 Bertsekas 从权威人物到朋友( 的转变以及友好戏弄的主题)。 “I 记得当我开始自己的 LIDS 博士之旅时，更多高年级博士生的令人生畏的评论。有些人将 Dimitri 称为 “immortal。” 我深情地回忆起 — 并经常提醒 Dimitri 关于 — 的另一条评论是: “ Bertsekas 教授是一个非常英俊的男人!” 他们的关系在范之后持续了很长时间罗伊’年毕业。 “Dimitri was a treasure to humanity: one of the great scholars of our time, a Renaissance man, and a phenomenal role model.我很荣幸能成为他指导过的众多人中的一员,，更荣幸能把他视为我的老朋友。” 李玉超, 亚利桑那州立大学 Bertsekas 指导的博士后, 记得他的导师是几乎取之不尽的灵感和支持的源泉: “对我来说, Bertsekas 教授就像一位慈爱的父亲, 充满无限的力量 wisdom. … He seemed to know everything, yet he remained deeply humble and open-minded. He was always eager to help, even at the slightest sign of difficulty in my life. He instilled in me a lasting faith in the very best qualities of human beings, and I will strive to carry that faith forward.”
Former student Benjamin Van Roy, now a professor at Stanford, wrote about the transformation of Bertsekas from authority figure to friend (and the subject of friendly teasing). “I recall the intimidating comments of more senior PhD students as I began my own PhD journey in LIDS. Some referred to Dimitri as an “immortal.” Another comment I recall fondly — and often reminded Dimitri about — was: “Professor Bertsekas is a very handsome man!” Their bond continued long after Van Roy的 graduation. “Dimitri was a treasure to humanity: one of the great scholars of our time, a Renaissance man, and a phenomenal role model. I was privileged to be among the many he mentored, and even more privileged to count him as a longtime friend.” Yuchao Li, a postdoc mentored by Bertsekas at Arizona State University, remembers his mentor as an almost inexhaustible source of both inspiration and support: “For me, Professor Bertsekas was like a loving father, full of infinite wisdom. … He seemed to know everything, yet he remained deeply humble and open-minded. He was always eager to help, even at the slightest sign of difficulty in my life. He instilled in me a lasting faith in the very best qualities of human beings, and I will strive to carry that faith forward.”
贝尔塞卡斯的儿子科斯塔斯先于他去世。他身后留下了妻子 Joanna Bertsekas (née Palashas);、儿子 Telis Bertsekas 和妻子 Wendy Bertsekas; 以及三个孙子, Melina, Alexandros, 和 Leonidas。
Bertsekas was preceded in death by his son Costas. He is survived by his wife Joanna Bertsekas (née Palashas); his son Telis Bertsekas and his wife Wendy Bertsekas; and three grandchildren, Melina, Alexandros, and Leonidas.