This research explores the impact of Context Free Grammars (CFG) and Parse Trees for construction of a Telugu Language Sentences. Based on the CFG here we derived the derivations for the respective strings. Later we constructed the Parser Trees for the above said strings. Finally we analysed whether the string is ambiguous or unambiguous. Here for analysis we considered the Large Scale Open Sou...

We study the minimum concave cost flow problem over a two-dimensional grid network (CFG), where one dimension represents time (1 ≤ t ≤ T ) and the other dimension represents echelons (1 ≤ l ≤ L). The concave function over each arc is given by a value oracle. We give a polynomial-time algorithm for finding the optimal solution when the network has a fixed number of echelons and all sources lie a...

Experiments point at the need for a robust grammatical analysis on recognition results. A robust parsing can rst, help distinguish the incorrect recognitions that are recoverable; second, produce a relevant analysis for the interpretation process. We review existing robust parsing techniques and propose an approach based on Lexicalized Tree Grammars. We report experiments conducted on \Virtual ...

Okinawan Awamori is produced by fermenting steamed indica rice with black mold, yeast, and water. Awamori-pressed lees is a by-product of the Awamori production process. Tofu lees is a by-product of the Tofu production process. This research consisted of two experiments conducted to elucidate whether or not dried Awamori-pressed lees and Tofu lees can be used as a mixed feed ingredient for rais...

Guessing, or dictionary, attacks arise when an intruder exploits the fact that certain data like passwords may have low entropy, i.e. stem from a small set of values. In the case of off-line guessing, in particular, the intruder may employ guessed values to analyze the messages he has observed. Previous attempts at formalizing off-line guessing consist of extending a Dolev-Yao-style intruder mo...

Unresolved indirect branch instructions are a major obstacle for statically reconstructing a control flow graph (CFG) from machine code. If static analysis cannot compute a precise set of possible targets for a branch, the necessary conservative over-approximation introduces a large amount of spurious edges, leading to even more imprecision and a degenerate CFG. In this paper, we propose to lev...

Large-scale grammars are a prerequisite for parsing a great variety of sentences, but it is difficult to build such grammars by hand. Yet, it is possible to derive a context-free grammar(CFG) automatically from an existing large-scale, syntactically annotated corpus. While being seemingly a simple task at first sight, CFGs derived in such a fashion have hardly ever been applied to an existing s...

An efficient parsing technique for HPSG is presented. Recent research has shown that supertagging is a key technology to improve both the speed and accuracy of lexicalized grammar parsing. We show that further speed-up is possible by eliminating non-parsable lexical entry sequences from the output of the supertagger. The parsability of the lexical entry sequences is tested by a technique called...

Constructive methods for obtaining regular grammar counterparts for some sub-classes of context-free grammars (CFGs) have been investigated by many researchers. An important class of grammars for which this is always possible is the one-letter CFG. We show in this paper a new constructive method for transforming an arbitrary one-letter CFG to an equivalent regular expression of star-height 0 or...