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Efficient computation of LALR(1) look-ahead sets

Frank DeRemer, Thomas J. Pennello
1979 SIGPLAN notices  
When a grammar is not LALR(1), the relations, represented explicitly, provide for printing useroriented error messages that specifically indicate how the look-ahead problem arose.  ...  In addition, certain loops in the digraphs induced by these relations indicate that the grammar is not LR(k) for any k.  ...  For example, it may be possible to define an automaton using a precedence technique such that, if our algorithm is applied, it will compute some "precedence look-ahead sets" and thus determine whether  ... 
doi:10.1145/872732.806968 fatcat:oelo75u5w5hlpjor6j2hfvw7m4

Efficient Computation of LALR(1) Look-Ahead Sets

Frank DeRemer, Thomas Pennello
1982 ACM Transactions on Programming Languages and Systems  
When a grammar is not LALR(1), the relations, represented explicitly, provide for printing useroriented error messages that specifically indicate how the look-ahead problem arose.  ...  In addition, certain loops in the digraphs induced by these relations indicate that the grammar is not LR(k) for any k.  ...  For example, it may be possible to define an automaton using a precedence technique such that, if our algorithm is applied, it will compute some "precedence look-ahead sets" and thus determine whether  ... 
doi:10.1145/69622.357187 fatcat:xwzsa2yl3vhbdpaetmu3xfvami

Efficient computation of LALR(1) look-ahead sets

Frank DeRemer, Thomas J. Pennello
1979 Proceedings of the 1979 SIGPLAN symposium on Compiler construction - SIGPLAN '79  
When a grammar is not LALR(1), the relations, represented explicitly, provide for printing useroriented error messages that specifically indicate how the look-ahead problem arose.  ...  In addition, certain loops in the digraphs induced by these relations indicate that the grammar is not LR(k) for any k.  ...  For example, it may be possible to define an automaton using a precedence technique such that, if our algorithm is applied, it will compute some "precedence look-ahead sets" and thus determine whether  ... 
doi:10.1145/800229.806968 dblp:conf/sigplan/DeRemerP79 fatcat:qkadcr3kmzgvzktjyc5qackoka

Efficient computation of LALR(1) look-ahead sets

Thomas J. Pennello, Frank DeRemer
2004 SIGPLAN notices  
When a grammar is not LALR(1), the relations, represented explicitly, provide for printing useroriented error messages that specifically indicate how the look-ahead problem arose.  ...  In addition, certain loops in the digraphs induced by these relations indicate that the grammar is not LR(k) for any k.  ...  For example, it may be possible to define an automaton using a precedence technique such that, if our algorithm is applied, it will compute some "precedence look-ahead sets" and thus determine whether  ... 
doi:10.1145/989393.989396 fatcat:5rethi4oijfanpsoeu3fvhrzgy

Language Recognition Using Latent Dynamic Conditional Random Field Model with Phonological Features

Sirinoot Boonsuk, Atiwong Suchato, Proadpran Punyabukkana, Chai Wutiwiwatchai, Nattanun Thatphithakkul
2014 Mathematical Problems in Engineering  
Most existing SLR approaches apply statistical modeling techniques with acoustic and phonotactic features.  ...  Among the popular approaches, the acoustic approach has become of greater interest than others because it does not require any prior language-specific knowledge.  ...  The model parameter * is learned during the training phase. Proposed SLR System The block diagram of the proposed SLR system is shown in Figure 1 .  ... 
doi:10.1155/2014/250160 fatcat:4o6uajba6neqpadhsygmk4eu7m

Using mapping studies as the basis for further research – A participant-observer case study

Barbara A. Kitchenham, David Budgen, O. Pearl Brereton
2011 Information and Software Technology  
We believe it is essential that the SLR methodology is used constructively to support software engineering research.  ...  We did not find an example of an independent research group making use of a mapping study produced by other researchers.  ...  These showed 3 papers that found crosscompany estimates no worse than within-company estimates, four studies that found crosscompany models significantly worse than within-company studies.  ... 
doi:10.1016/j.infsof.2010.12.011 fatcat:4ht7jmkjdjhqhncdz242oonmlm

A Methodology for Multisensory Product Experience Design Using Cross-modal Effect: A Case of SLR Camera

Takuma Maki, Hideyoshi Yanagisawa
2019 Proceedings of the International Conference on Engineering Design  
We demonstrated the validity of the methodology with SLR cameras as a case study, which is a typical product with multisensory perceptions.  ...  All properties other than these were same as those we used in Experiment 1.  ...  with a pair whose tactile stimulus is presented earlier or later than auditory one.  ... 
doi:10.1017/dsi.2019.387 fatcat:ozs34hszibhuhcaq5b5sbtooce

Estimating total leaf chlorophyll content of Gannan navel orange leaves using hyperspectral data based on partial least squares regression

Zhongzheng Peng, Lixin Guan, Yubo Liao, Suyun Lian
2019 IEEE Access  
However, models built with ANN and OLSR, where the RPD values were less than 3, cause the models to be inaccurate.  ...  models established using EWs by RS data (EWs-RS-SLR).  ...  In addition, the modeling effect of the F-ANN model was worse than that of the EWs-OLSR and EWs-SLR models.  ... 
doi:10.1109/access.2019.2949866 fatcat:ggktqxy2vbaofaj2n22pypyqhm

Determination of Global Geodetic Parameters Using Satellite Laser Ranging Measurements to Sentinel-3 Satellites

Dariusz Strugarek, Krzysztof Sośnica, Daniel Arnold, Adrian Jäggi, Radosław Zajdel, Grzegorz Bury, Mateusz Drożdżewski
2019 Remote Sensing  
The geocenter motion is typically derived from SLR measurements to passive LAGEOS cannonball-like satellites.  ...  The calculation process was preceded with the estimation of SLR site range biases, different network constraining tests and a different number of orbital arcs in the analyzed solutions.  ...  For all components, more than 50 NPs may deliver residuals of coordinates worse than 10 mm when compared to SLRF2014.  ... 
doi:10.3390/rs11192282 fatcat:yrlzt6kalva7tmnbnebekm2ht4

Machine learning applied to simulations of collisions between rotating, differentiated planets

Miles L. Timpe, Maria Han Veiga, Mischa Knabenhans, Joachim Stadel, Stefano Marelli
2020 Computational Astrophysics and Cosmology  
This work is based on a new set of 14,856 SPH simulations of pairwise collisions between rotating, differentiated bodies at all possible mutual orientations.  ...  In this work, we show that data-driven emulation techniques are capable of classifying and predicting the outcome of collisions with high accuracy and are generalizable to any quantifiable post-impact  ...  only modest accuracies, in some cases performing worse than PIM (see Table 6 ).  ... 
doi:10.1186/s40668-020-00034-6 pmid:33282631 pmcid:PMC7716936 fatcat:2na6nbjrpbhbbapwfoeiycu6yy

List Scheduling Algorithm Based on Virtual Scheduling Length Table in Heterogeneous Computing System

Naqin Zhou, Xiaowen Liao, Fufang Li, Yuanyong Feng, Liangchen Liu, Xiaojie Wang
2021 Wireless Communications and Mobile Computing  
Therefore, ensuring the efficient implementation of applications in cloud computing is not only related to the development of cloud computing itself but also affects the promotion of edge computing.  ...  Finally, the processor is selected for the task based on the predicted remaining length table.  ...  Figure 5 presents the average SLR of the algorithms for heterogeneity values of [0.1, 0.2, 0.5, 0.75, 1, 2]. When β = 0:1, the BVSL algorithm is 9.4% better than RE-18 and 4% better than IPPTS.  ... 
doi:10.1155/2021/9529022 fatcat:nnv44wfchrghxh5iw6wdl6vrjy

A hybrid approach for recovering high-resolution temporal gravity fields from satellite laser ranging

Anno Löcher, Jürgen Kusche
2020 Journal of Geodesy  
AbstractA new approach to recover time-variable gravity fields from satellite laser ranging (SLR) is presented.  ...  In the period prior to GRACE, the SLR solutions are in good agreement with other techniques and models and confirm, for instance, that the Greenland ice sheet was stable until the late 1990s.  ...  We are further grateful to DFG for funding under KU1207/26-1 (GlobalCDA). We thank the International Laser Ranging Service and all other data providers for sharing their data.  ... 
doi:10.1007/s00190-020-01460-x fatcat:ndtldfcohvcsjcpmuzhzmd4myu

Effective spine triage: patterns of pain

Hamilton Hall
2014 Ochsner Journal  
But in the overwhelming majority of low back pain cases, the issue is nothing more than a minor mechanical malfunction, the inevitable consequence of normal wear and tear.  ...  Patients without a pattern and those who do not respond as anticipated require further investigation and specialized care.  ...  Furthermore, the physicians' disagreements over the specific pathology focus attention and resources on the putative source rather than on techniques of immediate pain control.  ... 
pmid:24688339 pmcid:PMC3963059 fatcat:74wzy6h7cjflrji7cmroci2btu

Kindergarten cop: dynamic nursery resizing for GHC

Henrique Ferreiro, Laura Castro, Vladimir Janjic, Kevin Hammond
2016 Proceedings of the 25th International Conference on Compiler Construction - CC 2016  
We demonstrate that, in contrast with imperative programs, having large nurseries is not always the best solution.  ...  On average, our technique gives an improvement of 9.3% in overall performance across a standard suite of 63 benchmarks for the production GHC compiler.  ...  If TPBM2 is less than TPBM1, the nursery size is halved again. This process is repeated until a nursery size Sn with a worse TPBMn than Sn−1 is found.  ... 
doi:10.1145/2892208.2892223 dblp:conf/cc/FerreiroCJH16 fatcat:qrm5g3vpcvd2zfxobmhp3o2rx4

Chinese Small Business Credit Scoring: Application of Multiple Hybrids Neural Network

Chi Guotai, Mohammad Zoynul Abedin, Fahmida E. Moula
2017 International Journal of Database Theory and Application  
The idea of integrating multiple NN classifiers is not new in literature.  ...  Unlike statistical techniques, ANN does not require any assumptions, can generalize, can correctly infer the unseen part of a population, and in research about credit scoring, for many years, authors supported  ...  A final indication from the experiments is that using the DT algorithm with NN classifier is clearly worse than the SDA or SLR hybridization with NN.  ... 
doi:10.14257/ijdta.2017.10.2.01 fatcat:drzhpvdtwjbuboz52tblxawptu
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