Academic literature on the topic 'Weighted strings'

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Journal articles on the topic "Weighted strings"

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ZHANG, MENG, LIANG HU, and YI ZHANG. "WEIGHTED AUTOMATA FOR FULL-TEXT INDEXING." International Journal of Foundations of Computer Science 22, no. 04 (2011): 921–43. http://dx.doi.org/10.1142/s0129054111008490.

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Full-text index structures are widely used in string matching and bioinformatics. These structures such as DAWGs and suffix trees allow fast searches on texts. In this paper, we present a new partition of the factors of a word, called a consistent minimal linear partition. Based on this partition, we introduce the weighted directed word graph (WDWG), a space-economical full-text index. WDWGs are basically cyclic, which means that they may accept infinite strings. But by assigning weights to edges, the acceptable strings are limited only to the factors of the input string. For a given word w, a
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MOHRI, MEHRYAR. "EDIT-DISTANCE OF WEIGHTED AUTOMATA: GENERAL DEFINITIONS AND ALGORITHMS." International Journal of Foundations of Computer Science 14, no. 06 (2003): 957–82. http://dx.doi.org/10.1142/s0129054103002114.

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The problem of computing the similarity between two sequences arises in many areas such as computational biology and natural language processing. A common measure of the similarity of two strings is their edit-distance, that is the minimal cost of a series of symbol insertions, deletions, or substitutions transforming one string into the other. In several applications such as speech recognition or computational biology, the objects to compare are distributions over strings, i.e., sets of strings representing a range of alternative hypotheses with their associated weights or probabilities. We d
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BROUTIN, N., and L. DEVROYE. "An Analysis of the Height of Tries with Random Weights on the Edges." Combinatorics, Probability and Computing 17, no. 2 (2008): 161–202. http://dx.doi.org/10.1017/s0963548307008796.

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We analyse the weighted height of random tries built from independent strings of i.i.d. symbols on the finite alphabet {1, . . .d}. The edges receive random weights whose distribution depends upon the number of strings that visit that edge. Such a model covers the hybrid tries of de la Briandais and the TST of Bentley and Sedgewick, where the search time for a string can be decomposed as a sum of processing times for each symbol in the string. Our weighted trie model also permits one to study maximal path imbalance. In all cases, the weighted height is shown to be asymptotic toclognin probabil
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Hyyrö, Heikki, and Shunsuke Inenaga. "Dynamic RLE-Compressed Edit Distance Tables Under General Weighted Cost Functions." International Journal of Foundations of Computer Science 29, no. 04 (2018): 623–45. http://dx.doi.org/10.1142/s0129054118410083.

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Kim and Park [A dynamic edit distance table, J. Disc. Algo., 2:302–312, 2004] proposed a method (KP) based on a “dynamic edit distance table” that allows one to efficiently maintain unit cost edit distance information between two strings [Formula: see text] of length [Formula: see text] and [Formula: see text] of length [Formula: see text] when the strings can be modified by single-character edits to their left or right ends. This type of computation is useful e.g. in cyclic string comparison. KP uses linear time, [Formula: see text], to update the distance representation after each single edi
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Louchard, Guy, and Wojciech Szpankowski. "A Probabilistic Analysis of a String Editing Problem and its Variations." Combinatorics, Probability and Computing 4, no. 2 (1995): 143–66. http://dx.doi.org/10.1017/s0963548300001541.

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We consider a string editing problem in a probabilistic framework. This problem is of considerable interest to many facets of science, most notably molecular biology and computer science. A string editing transforms one string into another by performing a series of weighted edit operations of overall maximum (minimum) cost. The problem is equivalent to finding an optimal path in a weighted grid graph. In this paper we provide several results regarding a typical behaviour of such a path. In particular, we observe that the optimal path (i.e. edit distance) is almost surely (a.s.) equal to αn for
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Barton, Carl, Chang Liu, and Solon P. Pissis. "Fast Average-Case Pattern Matching on Weighted Sequences." International Journal of Foundations of Computer Science 29, no. 08 (2018): 1331–43. http://dx.doi.org/10.1142/s0129054118430062.

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A weighted string is a string in which a set of letters may occur at each position with respective occurrence probabilities. Weighted strings, also known as position weight matrices, weighted sequences or uncertain sequences, naturally arise in many contexts. In this paper, we study the problem of weighted string matching with a special focus on average-case analysis. Given a weighted pattern string [Formula: see text] of length [Formula: see text], a text string [Formula: see text] of length [Formula: see text], both on a constant-sized alphabet of size [Formula: see text], and a cumulative w
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SADRI, JAVAD, CHING Y. SUEN, and TIEN D. BUI. "STATISTICAL CHARACTERISTICS OF SLANT ANGLES IN HANDWRITTEN NUMERAL STRINGS AND EFFECTS OF SLANT CORRECTION ON SEGMENTATION." International Journal of Pattern Recognition and Artificial Intelligence 24, no. 01 (2010): 97–116. http://dx.doi.org/10.1142/s0218001410007816.

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A novel and efficient method for correction of slant angles in handwritten numeral strings is proposed. For the first time, the statistical distribution of slant angles in handwritten numerals is investigated and the effects of slant correction on the segmentation of handwritten numeral strings are shown. In our proposed slant correction method, utilizing geometric features, a Component Slant Angle (CSA) is estimated for each connected component independently. A weighted average is then used to compute the String Slant Angle (SSA), which is applied uniformly to correct the slant of all the com
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Barton, Carl, and Solon P. Pissis. "Crochemore’s Partitioning on Weighted Strings and Applications." Algorithmica 80, no. 2 (2017): 496–514. http://dx.doi.org/10.1007/s00453-016-0266-0.

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Uma, Gajendragadkar, and Joshi Sarang. "Context Sensitive Search String Composition Algorithm using User Intention to Handle Ambiguous Keywords." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 1 (2017): 432–50. https://doi.org/10.11591/ijece.v7i1.pp432-450.

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Finding the required URL among the first few result pages of a search engine is still a challenging task. This may require number of reformulations of the search string thus adversely affecting user's search time. Query ambiguity and polysemy are major reasons for not obtaining relevant results in the top few result pages. Efficient query composition and data organization are necessary for getting effective results. Context of the information need and the user intent may improve the autocomplete feature of existing search engines. This research proposes a Funnel Mesh-5 algorithm (FM5) to c
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Alshawi, Hiyan, Srinivas Bangalore, and Shona Douglas. "Learning Dependency Translation Models as Collections of Finite-State Head Transducers." Computational Linguistics 26, no. 1 (2000): 45–60. http://dx.doi.org/10.1162/089120100561629.

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The paper defines weighted head transducers, finite-state machines that perform middle-out string transduction. These transducers are strictly more expressive than the special case of standard left-to-right finite-state transducers. Dependency transduction models are then defined as collections of weighted head transducers that are applied hierarchically. A dynamic programming search algorithm is described for finding the optimal transduction of an input string with respect to a dependency transduction model. A method for automatically training a dependency transduction model from a set of inp
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Dissertations / Theses on the topic "Weighted strings"

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Wacher, Abigail. "String gradient weighted moving finite elements for systems of partial differential equations." Thesis, University of Oxford, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.404276.

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Jansche, Martin. "Inference of string mappings for speech technology." Columbus, Ohio : Ohio State University, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1061209163.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xv, 268 p.; also includes graphics. Includes abstract and vita. Advisor: Chris Brew, Dept. of Linguistics. Includes bibliographical references (p. 252-266) and index.
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Liptak, Zsuzsanna. "Strings in Proteomics and Transcriptomics: Algorithmic and Combinatorial Questions in Mass Spectrometry and EST Clustering." Doctoral thesis, 2005. http://hdl.handle.net/11562/391087.

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x<br>This thesis treats two problem areas in bioinformatics which can both be benefi- cially formalized as string problems. The first (and larger) part deals with weighted string problems as they arise from biotechnological mass spectrometry applications. In a mass spectrometry experiment—put in a simplified manner—the molecular mass of the sample mo- lecules is determined. The aim is to identify the sample, either with or without additional information from a database, relying on the fact that the different build- ing blocks of proteins (namely, amino acids) and of DNA molecules (nucleotides
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Θεοδωρίδης, Ευάγγελος. "Αποδοτική διαχείριση κειμενικής πληροφορίας, δεικτοδότηση, αποθήκευση, επεξεργασία και εφαρμογές". Thesis, 2009. http://nemertes.lis.upatras.gr/jspui/handle/10889/1656.

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Βασική επιδίωξη της παρούσας διατριβής είναι η διερεύνηση των δυνατοτήτων του πεδίου της επιστήμης των υπολογιστών που πραγματεύεται την αποθήκευση και την επεξεργασία πληροφορίας, μέσα στο περιβάλλον που έχουν σχηματίσει οι σύγχρονες εφαρμογές. Τα τελευταία χρόνια, η πληροφορία που είναι διαθέσιμη σε ηλεκτρονική μορφή, έχει γιγαντωθεί με αποτέλεσμα να είναι αναγκαία η ανάπτυξη νέων τεχνικών για την αποτελεσματική αποθήκευση και επεξεργασία αυτής. Δύο πολύ χαρακτηριστικές και σημαντικές εφαρμογές, στις οποίες ανακύπτουν συνεχώς νέα προβλήματα, είναι η διαχείριση Βιολογικών δεδομένων, όπως
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Παναγής, Ιωάννης-Δαμαστιανός. "Δομές δεδομένων για τη διαχείριση συμβολοσειρών και για τη διαχείριση πληροφορίας σε δικτυοκεντρικά πληροφοριακά συστήματα". Thesis, 2006. http://nemertes.lis.upatras.gr/jspui/handle/10889/1426.

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Οι Δομές Δεδομένων είναι ένας από τους σημαντικότερους και ιστορικότερους κλάδους της Επιστήμης των Υπολογιστών, με συνεχή εξέλιξη από τη δεκαετία του εβδομήντα μέχρι σήμερα, παρέχοντας λύσεις σε θεμελιώδη προβλήματα σε ταξινόμηση, οργάνωση, διαχείριση και αναζήτηση πληροφορίας. Παράλληλα, η ανάπτυξη σύγχρονων κλάδων της Επιστήμης των Υπολογιστών όπως τα Σύγχρονα, Δικτυοκεντρικά Πληροφοριακά Συστήματα και η Βιοπληροφορική, έφερε μαζί της την έκρηξη των δεδομένων. Η ανάγκη αποδοτικής διαχείρισης της παρεχόμενης πληροφορίας καθίσταται έτσι πιο επιτακτική από ποτέ. Στα πλαίσια αυτής της δια
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Books on the topic "Weighted strings"

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Little, Jean. Garfield gains weight. Ballantine Books, 2001.

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translator, Scott-Railton Thomas, ed. Blast: Dead weight. Europe Comics, 2015.

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No, Ka-yŏng. Piman kom ŭi yŏsin toegi taiŏt'ŭ. Wijŭdŏm Hausŭ, 2016.

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Thorpe, J. Analysis of bird strikes to UK registered aircraft 1984: (civil aircraft over 5700kg maximum weight). Civil Aviation Authority, 1986.

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Thorpe, J. Analysis of bird strikes to United Kingdom registered aircraft 1985: Civil aircraft over 5700kg maximum weight. Civil Aviation Authority, 1987.

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Leon, Kristin De. Health Tips and How I Lost Weight. Kooky Mermaid Comics, 2014.

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Neonpi. Taiŏt'ŏ: Kŏn'gang han saenghwal ŭl wihan pon'gyŏk taiŏt'ŭ wept'un. Chungang Books, 2011.

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Gaines, Charles. Staying hard: The only exercise book you will ever need. Simon & Schuster, 1985.

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Busiek, Kurt. Superman.: The weight of the world. DC Comics, 2008.

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Lay, Carol. The big skinny: How I changed my fattitude : a memoir. Villard Books, 2008.

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Book chapters on the topic "Weighted strings"

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Rabusseau, Guillaume. "Minimization of Graph Weighted Models over Circular Strings." In Lecture Notes in Computer Science. Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-89366-2_28.

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Bansal, Nikhil, Mark Cieliebak, and Zsuzsanna Lipták. "Efficient Algorithms for Finding Submasses in Weighted Strings." In Combinatorial Pattern Matching. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-27801-6_14.

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Cieliebak, Mark, Zsuzsanna Lipták, Emo Welzl, Thomas Erlebach, and Jens Stoye. "Algorithmic Complexity of Protein Identification: Searching in Weighted Strings." In Foundations of Information Technology in the Era of Network and Mobile Computing. Springer US, 2002. http://dx.doi.org/10.1007/978-0-387-35608-2_13.

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Barton, Carl, and Solon P. Pissis. "Linear-Time Computation of Prefix Table for Weighted Strings." In Lecture Notes in Computer Science. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-23660-5_7.

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De Stefano, Claudio, Marco Garruto, Luis Lapresa, and Angelo Marcelli. "Using Strings for On-Line Handwriting Shape Matching: A New Weighted Edit Distance." In Image Analysis and Processing – ICIAP 2005. Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/11553595_138.

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Franek, Lucas, and Xiaoyi Jiang. "Evolutionary Weighted Mean Based Framework for Generalized Median Computation with Application to Strings." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-34166-3_8.

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Welsing, Alexander, Andreas Nienkötter, and Xiaoyi Jiang. "Exponential Weighted Moving Average of Time Series in Arbitrary Spaces with Application to Strings." In Lecture Notes in Computer Science. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-73973-7_5.

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Amir, Amihood, Zvi Gotthilf, and B. Riva Shalom. "Weighted Shortest Common Supersequence." In String Processing and Information Retrieval. Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-24583-1_6.

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Iliopoulos, Costas S., Katerina Perdikuri, Evangelos Theodoridis, Athanasios Tsakalidis, and Kostas Tsichlas. "Motif Extraction from Weighted Sequences." In String Processing and Information Retrieval. Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-540-30213-1_41.

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Jiang, Xiaoyi, and Horst Bunke. "Weighed Mean Generalized Median of Strings." In Pattern Recognition and String Matching. Springer US, 2003. http://dx.doi.org/10.1007/978-1-4613-0231-5_12.

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Conference papers on the topic "Weighted strings"

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Wilken, Gerdt. "Performance of Duplex Stainless Steel Pipes in Sour Gas Wells." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85226.

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Abstract Severe weight-loss corrosion affected the lowest part of carbon steel tubing strings in concentric completed sour gas wells in several German sour gas fields. To combat this corrosion problem the carbon steel pipes of the lower sections of the tubing string were replaced by duplex stainless steel pipes. Sour gas corrosion effects on duplex stainless steels can be described as chloride induced stress corrosion cracking or as general corrosion. The analysis of the corrosion effects emphasize the limitations of using duplex stainless steel pipes in sour gas wells.
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Yang, Yaoyu, and Zitan Chen. "Reconstruction of multiple strings of constant weight from prefix-suffix compositions." In 2024 IEEE International Symposium on Information Theory (ISIT). IEEE, 2024. http://dx.doi.org/10.1109/isit57864.2024.10619697.

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Kamshad, Tariq, A/Rahman Al-Ghamdi, Ravi Shankar Siriki, and Douglas Kellow. "Risk Assessment for Implementation of Chemical Treatment Programs on Production Wells within the Wafra Oilfield Partition Zone (Kingdom of Saudi Arabia and Kuwait)." In CORROSION 2016. NACE International, 2016. https://doi.org/10.5006/c2016-07115.

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Abstract The chemical treatment of reservoir fluids within the wellbore is essential for the control of associated corrosion and scale deposition issues that adversely affect the integrity of the downhole pumping systems as well as casings and production tubing strings. Corrosion and scale deposition issues within downhole pumps and production tubing strings can lead to major losses in production and costly workovers, which adversely affects operational economics. The production tubing strings and casing materials within the Wafra Field production wells consist mainly of API Specification 5CT
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Vadron, J. D. C., and D. W. Harvey. "Hutton Impressed Current Cathodic Protection System - Reliability by Design." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85315.

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Abstract The development of the Hutton Field in the U.K. Sector of the North Sea incorporates, for the first time, a buoyant Tension Leg Platform maintained in position by an array of sixteen tubular steel tension leg strings. The demands imposed on the design team to keep the structure weight as low as possible were particularly stringent. The general elimination of corrosion allowances on hull plate thickness in sea-water immersion service demanded a high degree of reliability from the hull corrosion control system. The same weight constraints favoured the use of an impressed current system
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Das, Debarati, Jacob Gilbert, MohammadTaghi Hajiaghayi, Tomasz Kociumaka, and Barna Saha. "Weighted Edit Distance Computation: Strings, Trees, and Dyck." In STOC '23: 55th Annual ACM Symposium on Theory of Computing. ACM, 2023. http://dx.doi.org/10.1145/3564246.3585178.

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Hajianmaleki, Mehdi, Jeremy S. Daily, Lev Ring, and Raju Gandikota. "Buckling Analysis of Drill Strings in Inclined Wellbores Using the Explicit Finite Element Method." In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89638.

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Understanding drill string buckling behavior is a significant challenge to the petroleum industry. In this paper, the explicit finite element method implemented in Abaqus software is employed to study the buckling of drill strings for inclined straight wellbores. Classic solutions for the critical buckling length of self-weighted columns as well as critical buckling load for drill pipe inside inclined wellbores are compared to explicit FEA and accurate results are provided by the finite element based predictions. The effect of different inclination angles and string effective weight due to the
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Lizak, K. F., and Y. Zhang. "Fracturing 30,000 ft Wells in Deepwater, Planning and Execution Learnings from the Gulf of Mexico." In SPE Hydraulic Fracturing Technology Conference and Exhibition. SPE, 2024. http://dx.doi.org/10.2118/217802-ms.

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Abstract As shallower reservoirs deplete, the search for hydrocarbons is going deeper in the Gulf of Mexico. These reservoirs generally have lower permeability than many of the shallower reservoirs and require massive hydraulic fractures to reach economical production rates.1–4 The reservoirs are generally over-pressured and can require heavy weight drilling and completion fluids for well control. Fracturing fluids are often weighted, with viscosity and friction that require customization to the long work strings to permit sufficient rates to effectively fracture the formation. The lower perme
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Kishino, Mika, and Kanako Komiya. "Extraction of Linguistic Speech Patterns of Japanese Fictional Characters using Subword Units." In 10th International Conference on Natural Language Processing (NLP 2021). Academy and Industry Research Collaboration Center (AIRCC), 2021. http://dx.doi.org/10.5121/csit.2021.112307.

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This study extracted and analyzed the linguistic speech patterns that characterize Japanese anime or game characters. Conventional morphological analyzers, such as MeCab, segment words with high performance, but they are unable to segment broken expressions or utterance endings that are not listed in the dictionary, which often appears in lines of anime or game characters. To overcome this challenge, we propose segmenting lines of Japanese anime or game characters using subword units that were proposed mainly for deep learning, and extracting frequently occurring strings to obtain expressions
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Amat, Sergio, Gustavo E. Henríquez Velez, and María J. Legaz. "Drilling String Vibration: Modelling and Simulation." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77685.

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The offshore industry has a significant impact on the global economy and it is expected to grow over the next 4 years. A crucial part of an offshore structure is the drill string. Drill strings can be seriously damaged by vibration during drilling operations. The control of vibrations in drill strings is essential. In drilling wells, this is useful to minimize the risks of well loss and also to improve drilling performance. The objective of this study is to model and simulate the vibrations in drill strings. This is made to know the region of stabilization of the system and to establish the op
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Dalgit Singh, Harpreet Kaur, Essam Sammat, Thakornpol Kleawyothatis, Kittikun Niracharopas, and Kazem Kiani Nassab. "Gulf of Thailand 4-String Well Design Transformation Using MPD System – Cost Saving, Operational Challenges and Learnings." In IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition. SPE, 2022. http://dx.doi.org/10.2118/209911-ms.

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Abstract Gulf of Thailand (GoT) or Gulf of Siam is mainly offshore development gas wells in Thailand. Well C and well H were originally designed with GoT 4-string standard template. However, Managed Pressure Drilling (MPD) solution was then selected to save one (1) casing string provided that the maximum expected formation pressure to be within the range of 1.46-1.50SG as per geological prognosis. Both wells were drilled to plan TD with 3-casing strings as planned to result in a cost-saving from the design transformation (4-strings to 3-strings) using the MPD system. There is always a risk of
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Reports on the topic "Weighted strings"

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Brown, R. J. L51598 Tow Methods Design Guide for the Installation of Offshore Pipelines. Pipeline Research Council International, Inc. (PRCI), 1989. http://dx.doi.org/10.55274/r0010093.

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In an effort to progress the development of hydrocarbon fields found in water depths beyond 1000 feet, the oil and gas industry is considering cost effective methods of subsea pipeline installation. As an established and reliable oil and gas transportation system, the pipeline will be an important factor in deepwater development. Surface installation methods are expected to become costly in deepwater due to the necessary equipment modifications and vessel requirements which are synonymous with increased tension capability and deepwater station keeping ability. This estimated increase in instal
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Garzon-Sabogal, Luis, Amy Getchell, Peter J. Becker, Philippe L. Bourdeau, and Marika Santagata. Control Guidelines for Aggregate Drainage Layers and Evaluation of In-Situ Permeability Testing Methods for Aggregates. Purdue University, 2025. https://doi.org/10.5703/1288284317769.

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This project examined the use of the light weight deflectometer (LWD) and the air permeameter test (APT) for control of the state of compaction and hydraulic conductivity of aggregate drainage layers. The investigation included an extensive program of LWDs, APTs, and nuclear density tests on two testing strips constructed at an experimental site—one on an untreated subgrade and the other on cement-treated subgrade, The project also included additional field tests at three construction sites in Indiana and a laboratory testing program for calibration and validation of the field data. Statistics
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Tehrani, Fariborz M., Kenneth L. Fishman, and Farmehr M. Dehkordi. Extending the Service-Life of Bridges using Sustainable and Resilient Abutment Systems: An Experimental Approach to Electrochemical Characterization of Lightweight Mechanically Stabilized Earth. Mineta Transportation Institute, 2023. http://dx.doi.org/10.31979/mti.2023.2225.

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Bridges are critical components of transportation infrastructure. This research addresses the need to extend the service life of bridges by improving the safety and reliability of bridge abutments and reducing their life-cycle cost and footprints. Mechanically stabilized earth (MSE) is a known strategy to enhance the economy and performance of bridge abutments. In addition, the application of rotary-kiln-manufactured lightweight aggregate backfills improves the performance of MSE bridge abutments with a leaner structural system. Such improvements include a reduction of structural demands due t
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Bonfil, David J., Daniel S. Long, and Yafit Cohen. Remote Sensing of Crop Physiological Parameters for Improved Nitrogen Management in Semi-Arid Wheat Production Systems. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7696531.bard.

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To reduce financial risk and N losses to the environment, fertilization methods are needed that improve NUE and increase the quality of wheat. In the literature, ample attention is given to grid-based and zone-based soil testing to determine the soil N available early in the growing season. Plus, information is available on in-season N topdressing applications as a means of improving GPC. However, the vast majority of research has focused on wheat that is grown under N limiting conditions in sub-humid regions and irrigated fields. Less attention has been given to wheat in dryland that is water
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