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Test of English as a Foreign Language (TOEFL / ˈ t oʊ f əl / TOH-fəl) is a standardized test to measure the English language ability of non-native speakers wishing to enroll in English-speaking universities. The test is accepted by more than 11,000 universities and other institutions in over 190 countries and territories.
Binary classification. Binary classification is the task of classifying the elements of a set into one of two groups (each called class ). Typical binary classification problems include: In cognition, deciding whether an object is food or not food. When measuring the accuracy of a binary classifier, the simplest way is to count the errors.
A binary-to-text encoding is encoding of data in plain text. More precisely, it is an encoding of binary data in a sequence of printable characters. These encodings are necessary for transmission of data when the communication channel does not allow binary data (such as email or NNTP) or is not 8-bit clean. PGP documentation ( RFC 4880) uses ...
The International Test of English Proficiency or iTEP is a language assessment tool that measures the English skills of non-native English speakers. The test is supported by more than 700 institutions [1] including the California State University system. [2] [3] The test is available in more than 40 countries, and is also used by businesses ...
The CEFR is also intended to make it easier for educational institutions and employers to evaluate the language qualifications of candidates for education admission or employment. Its main aim is to provide a method of learning, teaching, and assessing that applies to all languages in Europe . The CEFR was established by the Council of Europe ...
A binary coderepresents text, computer processor instructions, or any other datausing a two-symbol system. The two-symbol system used is often "0" and "1" from the binary number system. The binary code assigns a pattern of binary digits, also known as bits, to each character, instruction, etc. For example, a binary stringof eight bits (which is ...
It is possible to take two exams for adjacent levels simultaneously. The levels C and E exams consist of one examination of a multiple-choice test. B level exams consist of both multiple choice and English composition and only require one exam to pass. For Superior A and A levels, examinees must pass the first exam that consists of a multiple ...
The code-rate is hence a real number. A low code-rate close to zero implies a strong code that uses many redundant bits to achieve a good performance, while a large code-rate close to 1 implies a weak code. The redundant bits that protect the information have to be transferred using the same communication resources that they are trying to protect.