hardness results for approximation algorithms

... using labeled seed data We refer the reader to Abney (2007) for more details Hardness of Viterbi Training We now describe hardness results for Problem We first note that the following problem is known ... using algorithms like EM, so this gives a hardness result for optimizing the objective function of EM for PCFGs Day (1983) previously showed that maximizing the marginalized likelihood for hidden ... hard Perhaps there is an efficient approximation algorithm for ViterbiTrain we could use instead of coordinate ascent algorithms such as Viterbi EM Recall that such algorithms main guarantee is identifying...

Ngày tải lên: 17/03/2014, 00:20

... fixed points from the set of best approximations We also establish common fixed point and approximation results for the newly defined class of Banach operator pairs Our results extend and unify the ... improved the above-mentioned results; details on the subject may be found in 17, 18 For applications of fixed point results of nonlinear mappings in simultaneous best approximation theory and Fixed ... invariant approximation Singh 11 , Sahab et al 12 , and Jungck and Sessa 13 proved similar results in best approximation theory Recently, Hussain and Khan have proved more general invariant approximation...

Ngày tải lên: 22/06/2014, 11:20

... to find approximation algorithms for these problems, and this is the goal of our paper In Section 2, we extend the optimum matching algorithms to these problems to obtain approximation algorithms, ... analyze these algorithms Section provides experimental results and comparisons with other algorithms, for example, the random search algorithm Section shows that in some sense these approximations ... 1000 approximation solutions obtained by the algorithms Method Random Greedy Algorithm A1 Mean 405 218 60 Standard Deviation 26 18 6.6 Comparison results for minimum 3-cliques G He et al., Approximation...

Ngày tải lên: 16/06/2016, 01:33

... enough An algorithm that returns near-optimal solutions is called an approximation algorithm Performance bounds for approximation algorithms      i is an optimization problem instance c(i) be ... Outline     Why approximation algorithms? The vertex cover problem The set cover problem TSP Why Approximation Algorithms ?     Many problems of practical ... optimal solution For minimization problem, we want c(i)/c*(i) to be as small as possible For maximization problem, we want c*(i)/c(i) to be as small as possible An approximation algorithm for the given...

Ngày tải lên: 13/12/2013, 13:15

... student test results are reported for each assessment program for each administration Results for students using allowable accommodations are aggregated with the test results for all students Results ... reports for three years (1999-2001) for fourth grade reading and science These reports summarized performance with the same sorts of bands used for KIRIS results Results are reported for a variety ... Accommodating, and Reporting Results for Students with Special Needs As stated earlier, one objective for the workshop was to learn more about states’ policies for reporting results of accommodated...

Ngày tải lên: 19/02/2014, 09:20

... 2011.[endoffootnote20.] information) or early January (for forms containing BHC-derived estimates) BHCs were required to submit detailed loan and securities portfolio information for all material portfolios, ... http://www.federalreserve.gov/newsevents/press/bcreg/bcreg20111122d1.pdf for additional information and for the details of the Supervisory Baseline Scenario.[endoffootnote11.] markets, and three variables (real GDP growth, inflation, and the U.S./foreign currency ... can be found at http://www.federalreserve.gov/reportforms/formsreview/FRY14Q 20111216 f.pdf and http://www.federalreserve.gov/reportforms/formsreview/FRY14A 20120118 f.pdf.[endoffootnote19.]...

Ngày tải lên: 06/03/2014, 09:20

... same standards for voluntary information as for mandatory information There seems to be less space for more subjective information (e.g., using indicator models with indicators for softer aspects ... Hurdles for the Voluntary Disclosure of Information on Intangibles Hurdles for the Voluntary Disclosure of Information on Intangibles – Empirical Results for “New Economy” Industries ... indicates that information on external factors for segments is not disclosed at all (Figure 21) Limited qualitative information can be found for all competition related factors and for information on...

Ngày tải lên: 07/03/2014, 01:20

... lower demand for equity and bond funds Differences in totals between quarterly and monthly net sales reflect differences in the universe of reporting countries Including Ireland for all months ... sovereign debt risk caused turbulence on financial markets      (1) Including Ireland for all quarters (2) Including Ireland from Q1 2011 EFAMA Quarterly Statistical Release N°46 (Second ... Japanese earthquake in March was short-lived This can be seen from the trends in monthly net sales for UCITS, which shows a sharp turnaround in June This drop was mainly attributable to large outflows...

Ngày tải lên: 07/03/2014, 16:20

... investor caution during the second quarter This can be seen from the trends in monthly net sales for UCITS Equity funds continued to suffer on account of the poor economic outlook On the other ... funds have recorded net inflows each month since December 2011, as investors continue their search for yield in a low interest rate environment Differences in totals between quarterly and monthly ... Country of Domiciliation The combined assets of the investment fund market in Europe, i.e the market for UCITS and nonUCITS, increased by 0.9 percent in the second quarter of 2012 to stand at EUR 8,437...

Ngày tải lên: 07/03/2014, 16:20

... < for n = Denote δ0 = s − n+1 for n ≥ 3, respectively δ0 = s − for n = 2, and let δ denote a number with < δ < δ0 We denote by ξ the space Fourier variable, and let ξ = (1 + |ξ|2 ) RESULTS FOR ... 331 RESULTS FOR THE NONLINEAR WAVE EQUATION Hence the contraction principle implies that we may write the solution v in the form v = v + TF , ˜ where v is the approximate solution formed above for ... following Lemma 2.3 c H s−1 e t du(h) ∞ dh 295 RESULTS FOR THE NONLINEAR WAVE EQUATION For integer values of s this result is due to Klainerman [12] For noninteger s, the argument of Klainerman...

Ngày tải lên: 15/03/2014, 09:20

... ¥31,212 million, a ¥14,741 million decrease from March 31, 2012 Business Forecasts for Fiscal 2013 Consolidated business forecasts for fiscal 2013, ending March 31, 2013, have been revised from those ... change results for (A–B / B) fiscal 2012 –4.8% ¥436,753 –16.7 12,514 –20.0 9,863 –15.0% ¥ 3,670 [Full Year of Fiscal 2013] Net sales Operating income Ordinary income Net income Revised forecasts ... forecasts (A) ¥500,000 20,000 16,000 ¥ 8,500 Previous forecasts (B) ¥525,000 24,000 20,000 ¥ 10,000 -3- We have revised our business forecasts for the first half of fiscal 2013 and full year as...

Ngày tải lên: 15/03/2014, 20:20

... million, a ¥15,064 million decrease from March 31, 2012 -3- Business Forecasts for Fiscal 2013 Consolidated business forecasts for fiscal 2013, ending March 31, 2013, have been revised from those ... 2012, as shown below (In millions of yen) Revised forecasts (A) Previous forecasts (B) Amount change (A – B) Percent change (A–B / B) Results for fiscal 2012 ¥466,000 ¥500,000 ¥(34,000) –6.8% ... business forecasts for fiscal 2013 reflect stagnation in car navigation sales in the consumer market and lower sales in China for Car Electronics, downward revision of the sales targets for optical...

Ngày tải lên: 15/03/2014, 20:20

... today, would you vote for Connie Mack or Bill Nelson? 14 How would you rate Rick Scott’s job performance as Governor? 15 In a hypothetical race for Governor in 2014, would you vote for Republican Rick ... likelihood-ratio chi2( 4) = -> tabulation of approveofobamasperformance by rickscottsperformanceasgovernor > Approve of Obama's performance? Rick Scott's performance as Governor? Negative Positive Unsure/Ot ... performance as Governor? Overall, voters are more negative on Rick Scott, with 40% giving him a negative rating, while 33% giving Contact: Doug Kaplan, 407-242-1870  2    Florida Results For...

Ngày tải lên: 16/03/2014, 01:20

... establishing forecast model with the use of regression equations for various terms based on the existing data Together with the forecast on CPUE, it is necessary to find out models for forecasting ... variables are monthly calculated and forecasted for the grid of 0.5 degree By regression equations (2), some of the experimental results on fishing ground forecast for purse-seine and drift-gillnet ... especially in this forecast the fish communities traditionally caught are fully investigated; 2) superlong-term forecast has a forecast term from to 20 years The difficulty of the forecast is that...

Ngày tải lên: 22/03/2014, 12:20

... banks in setting retail prices for short term consumption loans The degree of pass-through is found to be higher for lending rates for house 22 purchase (0.4321) and for loans to non-financial corporations ... also affected by the performance of retail funding: the rising costs that banks are enduring for the short term funding (current accounts, deposit accounts), but also for the long-term one (bond ... the market rate is completely disregarded and valuable information for the estimation of the interest rate pass-through model can be lost For these reason, several authors (de Bond, 2002; Sander...

Ngày tải lên: 22/03/2014, 23:20

... analytical information to investors regarding operating performance Outlook for the Fiscal Year ending March 31, 2008 Our forecast for the fiscal year ending March 31, 2008, is unchanged from the forecast ... So-net Entertainment Corporation Operating Results for SONY BMG MUSIC ENTERTAINMENT The following operating results for SONY BMG, which is accounted for by the equity method, are not consolidated ... level as of March 31, 2007 Operating Results for Sony Ericsson Mobile Communications AB The following operating results for Sony Ericsson, which is accounted for by the equity method, are not consolidated...

Ngày tải lên: 23/03/2014, 02:20

... should be in the form of units in those funds The UK Platform is already compliant with the new FSA rules for unit rebates Today we are revealing our new pricing model for the UK Platform which is ... of in-force business); and A £49 million charge for short-term fluctuations in investment return, largely as a result of lower returns on cash and bonds in South Africa For the results for the ... basis supplementary information A: MCEV policies 87 B: Segment information 95 C: Other key performance information 111 D: Sensitivity tests 116 37 OLD MUTUAL plc INTERIM RESULTS 2012 Statement...

Ngày tải lên: 23/03/2014, 08:21

... Table 5: Ripper results other results The other four machine learning results (parameter optimization and feature selection for TiMBL as well as defaults and parameter optimization for Ripper) significantly ... performance on the test set) Parameter optimization did not improve the results for Ripper Compared to TiMBL the smaller standard deviation in the cross-validation results indicates a more uniform/stable ... substitutions) (1) shows two possible alignments for a recognized utterance from the ATIS2 corpus, where ‘m’ stands for match, ‘i’ for insertion, and ‘s’ for substitution (1) Ambiguous Levenstein alignment...

Ngày tải lên: 23/03/2014, 19:20

... cause the actual results to be materially different from the forecasts (earnings forecast, dividend forecast, and other forecasts) With respect to this forecast, please refer to pages for "3 Consolidated ... to 776.6 billion yen Consolidated Financial Forecast Consolidated earnings forecasts for the fiscal year ending March 31, 2010 are unchanged from the forecasts in the report of "Consolidated Financial ... 2009 : Not applicable (2) Application of simplified methods for accounting procedures [Note] Please refer to "4 Other Information" at page for details : Applicable (3) Changes in accounting procedures...

Ngày tải lên: 29/03/2014, 18:20

... year, Omron’s performance forecast announced on October 31, 2005 remains unchanged The assumed exchange rates for the fourth quarter are US$1 = ¥115 and euro = ¥135 Projections of results and future ... figures for the nine months ended December 31, 2005, resulting in a ¥1,201 million decrease in net income Net income per share for the nine months ended December 31, 2005, before adjustment for cumulative ... figures for the nine months ended December 31, 2005, resulting in a ¥1,201 million decrease in net income Net income per share for the nine months ended December 31, 2005, before adjustment for cumulative...

Ngày tải lên: 29/03/2014, 18:20