Publications (13)
On Infinite Words Determined by Indexed Languages
Tim Smith
We characterize the infinite words determined by indexed languages. An infinite language determines an infinite word if every string in is a prefix of . If is…
A Roadmap for HEP Software and Computing R&D for the 2020s
Johannes Albrecht, Antonio Augusto Alves, Guilherme Amadio +307
Particle physics has an ambitious and broad experimental programme for the coming decades. This programme requires large investments in detector hardware, either to build new facil…
Reinterpretation and preservation of data and analyses in HEP
Jon Butterworth, Sabine Kraml, Harrison Prosper +145
Data from particle physics experiments are unique and are often the result of a very large investment of resources. Given the potential scientific impact of these data, which goes…
Data Preservation in High Energy Physics
Alexandre Arbey, Jamie Boyd, Daniel Britzger +45
Data preservation significantly increases the scientific output of high-energy physics experiments during and after data acquisition. For new and ongoing experiments, the careful c…
Installing, Running and Maintaining Large Linux Clusters at CERN
Vladimir Bahyl, Benjamin Chardi, Jan van Eldik +4
Having built up Linux clusters to more than 1000 nodes over the past five years, we already have practical experience confronting some of the LHC scale computing challenges: scalab…
CSU-PCAST: A Dual-Branch Transformer Framework for medium-range ensemble Precipitation Forecasting
Tianyi Xiong, Haonan Chen, Kelly Mahoney +3
Accurate medium-range precipitation forecasting is essential for hydrometeorological risk management but remains challenging for both numerical weather prediction (NWP) systems and…
Status Report of the DPHEP Study Group: Towards a Global Effort for Sustainable Data Preservation in High Energy Physics
Z. Akopov, Silvia Amerio, David Asner +87
Data from high-energy physics (HEP) experiments are collected with significant financial and human effort and are mostly unique. An inter-experimental study group on HEP data prese…
Political Polarization in Online News Consumption
Kiran Garimella, Tim Smith, Rebecca Weiss +1
Political polarization appears to be on the rise, as measured by voting behavior, general affect towards opposing partisans and their parties, and contents posted and consumed onli…
A Characterization of Morphic Words with Polynomial Growth
Tim Smith
A morphic word is obtained by iterating a morphism to generate an infinite word, and then applying a coding. We characterize morphic words with polynomial growth in terms of a new…
Sums of Palindromes: an Approach via Automata
Aayush Rajasekaran, Jeffrey Shallit, Tim Smith
Recently, Cilleruelo, Luca, & Baxter proved, for all bases b >= 5, that every natural number is the sum of at most 3 natural numbers whose base-b representation is a palindrome. Ho…
Undecidability and Finite Automata
Jörg Endrullis, Jeffrey Shallit, Tim Smith
Using a novel rewriting problem, we show that several natural decision problems about finite automata are undecidable (i.e., recursively unsolvable). In contrast, we also prove thr…
Status Report of the DPHEP Collaboration: A Global Effort for Sustainable Data Preservation in High Energy Physics
DPHEP Collaboration, Silvia Amerio, Roberto Barbera +31
Data from High Energy Physics (HEP) experiments are collected with significant financial and human effort and are mostly unique. An inter-experimental study group on HEP data prese…
Prediction of Infinite Words with Automata
Tim Smith
In the classic problem of sequence prediction, a predictor receives a sequence of values from an emitter and tries to guess the next value before it appears. The predictor masters…