Experimental on results on string matching over in nitealphabetsThierry

نویسنده

  • Thierry Lecroq
چکیده

Various string matching algorithms have been designed and some experimental works on string matching over nite alphabets have been performed but string matching over innnite alphabets has been little investigated. We present here experimental results where symbols are taken among potentially innnite sets such as integers, reals or composed structures. These results show that in most cases it is better to decompose each symbols into a sequence of bytes and use algorithms which assume that the alphabet is nite which enable to use heuristics on characters.

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Experiments on String Matching in Memory Structures

Various string matching algorithms have been designed and some experimental works on string matching over bounded alphabets have been performed but string matching over unbounded alphabets has been little investigated. We present here experimental results where symbols are taken among potentially innnite sets such as integers, reals or composed structures. These results show that in most cases ...

متن کامل

A Mechanical Model and its Experimental Verification for a Water Injection String in a Highly Deviated Well

Water injection strings in highly deviated wells are subjected to complex forces on the string bore. In this work, a mechanical model is developed for these forces and for those on downhole tools. On the basis of this model, and taking account of the characteristics of the string in different working conditions, a temperature field model and a pressure field model are introduced, and a statical...

متن کامل

Impact of Pollution Location on Time and Frequency Characteristics of Leakage Current of Porcelain Insulator String under Different Humidity and Contamination Severity

One of the important factors influencing outdoor insulators performance is pollution phenomenon. The pollution, especially during humidity condition, reduces superficial resistance of insulator and lead to a flow of Leakage Currents (LC) on the insulator surface, which may result in total flashover. The LC characteristics are affected by parameters such as nature and severity of pollution. Loca...

متن کامل

Effects of Disc Insulator Type and Corona Ring on Electric Field and Voltage Distribution over 230-kV Insulator String by Numerical Method

Insulator strings with several material and profiles are very common in overhead transmission lines. However, the electric field and voltage distribution of insulator string is uneven which may easily lead to corona, insulators’ surface deterioration and even flashover. So the calculation of the electric field and voltage distribution along them is a very important factor in the operation time....

متن کامل

Tuning the Zhu-Takaoka string matching algorithm and experimental results

In this paper we present experimental results for string matching algorithms which have a competitive theoretical worst case run time complexity. Of these algorithms a few are already famous for their speed in practice, such as the Boyer-Moore and its derivatives. We chose to evaluate the algorithms by counting the number of comparisons made and by timing how long they took to complete a given ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1997