Activity
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Fantastic to see The Information's AI21 Labs write up today: AI21 has been around longer than most independent AI model developers and has built a…
Fantastic to see The Information's AI21 Labs write up today: AI21 has been around longer than most independent AI model developers and has built a…
Liked by Idan Rejwan
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After more than six years at AI21 Labs, I bid farewell and move on to my next adventure. During these years I've had the privilege of tackling…
After more than six years at AI21 Labs, I bid farewell and move on to my next adventure. During these years I've had the privilege of tackling…
Liked by Idan Rejwan
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I was a bit bored so I decided to remind myself of some of my old embarrassing posts. And yes, they are quite embarrassing 😳 Before ChatGPT hit, I…
I was a bit bored so I decided to remind myself of some of my old embarrassing posts. And yes, they are quite embarrassing 😳 Before ChatGPT hit, I…
Liked by Idan Rejwan
Experience
Education
Publications
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Combinatorial Bandits with Full-Bandit Feedback: Sample Complexity and Regret Minimization
arXiv
Combinatorial Bandits generalize multi-armed bandits, where k out of n arms are chosen at each round and the sum of the rewards is gained. We address the full-bandit feedback, in which the agent observes only the sum of rewards, in contrast to the semi-bandit feedback, in which the agent observes also the individual arms' rewards. We present the Combinatorial Successive Accepts and Rejects (CSAR) algorithm, which is a generalization of the SAR algorithm (Bubeck et al. 2013) for the…
Combinatorial Bandits generalize multi-armed bandits, where k out of n arms are chosen at each round and the sum of the rewards is gained. We address the full-bandit feedback, in which the agent observes only the sum of rewards, in contrast to the semi-bandit feedback, in which the agent observes also the individual arms' rewards. We present the Combinatorial Successive Accepts and Rejects (CSAR) algorithm, which is a generalization of the SAR algorithm (Bubeck et al. 2013) for the combinatorial setting. Our main contribution is an efficient sampling scheme that uses Hadamard matrices in order to estimate accurately the individual arms' expected rewards. We discuss two variants of the algorithm, the first minimizes the sample complexity and the second minimizes the regret. For the sample complexity we also prove a matching lower bound that shows it is optimal. For the regret minimization, we prove a lower bound which is tight up to a factor of k. Finally, we run experiments and show that our algorithm outperforms other methods.
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Inducing Regular Grammars Using Recurrent Neural Networks
arXiv
Grammar induction is the task of learning a grammar from a set of examples. Recently, neural networks have been shown to be powerful learning machines that can identify patterns in streams of data. In this work we investigate their effectiveness in inducing a regular grammar from data, without any assumptions about the grammar. We train a recurrent neural network to distinguish between strings that are in or outside a regular language, and utilize an algorithm for extracting the learned…
Grammar induction is the task of learning a grammar from a set of examples. Recently, neural networks have been shown to be powerful learning machines that can identify patterns in streams of data. In this work we investigate their effectiveness in inducing a regular grammar from data, without any assumptions about the grammar. We train a recurrent neural network to distinguish between strings that are in or outside a regular language, and utilize an algorithm for extracting the learned finite-state automaton. We apply this method to several regular languages and find unexpected results regarding the connections between the network's states that may be regarded as evidence for generalization.
Other authorsSee publication -
אני, או מרכז היקום
אלכסון
כדור הארץ מסתובב סביב השמש? לא בטוח, ובעיקר לא כדאי למהר עם המסקנות
Languages
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Hebrew
Native or bilingual proficiency
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English
Full professional proficiency
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Arabic
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More activity by Idan
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מה הקשר בין ניהול פרויקטים ל-Ownership? תשמעו סיפור - אחד הפרויקטים שיצא לי לנהל, היה זמן קצר אחרי שהחברה עברה שינוי ארגוני. השינוי הביא איתו גם…
מה הקשר בין ניהול פרויקטים ל-Ownership? תשמעו סיפור - אחד הפרויקטים שיצא לי לנהל, היה זמן קצר אחרי שהחברה עברה שינוי ארגוני. השינוי הביא איתו גם…
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אתמול העברתי הרצאה על פרודקט דאטה אנלסיס לכמאה משתתפים. אבל מה הקטע? מחצית מהם לא ידעו כלום. כלום אני אומרת לכם. עזבו שניה sql, בסדר, רבים מחברי…
אתמול העברתי הרצאה על פרודקט דאטה אנלסיס לכמאה משתתפים. אבל מה הקטע? מחצית מהם לא ידעו כלום. כלום אני אומרת לכם. עזבו שניה sql, בסדר, רבים מחברי…
Liked by Idan Rejwan
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Now on Spotify - https://lnkd.in/dMnMzSUj
Now on Spotify - https://lnkd.in/dMnMzSUj
Liked by Idan Rejwan
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Black Hat USA 2024 🎩 starts in just a few weeks! Zafran Security has something exciting cooking 🎸 Reach out if you’d like to meet while we are in…
Black Hat USA 2024 🎩 starts in just a few weeks! Zafran Security has something exciting cooking 🎸 Reach out if you’d like to meet while we are in…
Liked by Idan Rejwan
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I'm thrilled to share that my family and I have officially relocated to New York City! The past two weeks have been quite busy —from the mundane…
I'm thrilled to share that my family and I have officially relocated to New York City! The past two weeks have been quite busy —from the mundane…
Liked by Idan Rejwan
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יש אינסוף מידע ברשת על ניהול משברים ארגוניים, אבל כמעט ואין מידע לגבי מצב בו המשבר הוא בכלל משבר אישי של אחד העובדים או העובדות; ולא סתם עובד או…
יש אינסוף מידע ברשת על ניהול משברים ארגוניים, אבל כמעט ואין מידע לגבי מצב בו המשבר הוא בכלל משבר אישי של אחד העובדים או העובדות; ולא סתם עובד או…
Liked by Idan Rejwan
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"ניהול פרויקטים זה כמו מירוץ שליחים" - אמר לי פעם חבר ומנהל פרויקטים אדיר שלימד אותי המון בתחום. מנהל פרויקטים אחראי לוודא שהמקל עובר מיד ליד בלי…
"ניהול פרויקטים זה כמו מירוץ שליחים" - אמר לי פעם חבר ומנהל פרויקטים אדיר שלימד אותי המון בתחום. מנהל פרויקטים אחראי לוודא שהמקל עובר מיד ליד בלי…
Liked by Idan Rejwan
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Last week was very special. My team and I partnered with AGI House and brought to life a developer event where AI enthusiasts came together to build.…
Last week was very special. My team and I partnered with AGI House and brought to life a developer event where AI enthusiasts came together to build.…
Liked by Idan Rejwan
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Had such a great time speaking at the AWS Tel Aviv Summit, with the wonderful Sharon Haroz and Moran Zilberstein. We talked about RAG, AI21's RAG…
Had such a great time speaking at the AWS Tel Aviv Summit, with the wonderful Sharon Haroz and Moran Zilberstein. We talked about RAG, AI21's RAG…
Liked by Idan Rejwan
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Calling all Bay Area devs who love GenAI! Come hack with AI21 at the AGI House on Saturday, June 22nd. AI21 Labs built Jamba, the groundbreaking…
Calling all Bay Area devs who love GenAI! Come hack with AI21 at the AGI House on Saturday, June 22nd. AI21 Labs built Jamba, the groundbreaking…
Liked by Idan Rejwan
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