Package it.unimi.dsi.big.webgraph
package it.unimi.dsi.big.webgraph
Main classes implementing the WebGraph algorithms.
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ClassDescriptionAn abstract implementation of a lazy integer iterator, implementing
AbstractLazyLongIterator.skip(long)by repeated calls tonextInt().AnImmutableGraphthat corresponds to graphs stored in a human-readable ASCII format were each line contains an arc.AnImmutableGraphthat corresponds to graphs stored in a human-readable ASCII format where each line contains the list of successors of a given node.A class computing host-related data given a list of URLs (usually, the URLs of the nodes of a web graph).An immutable graph represented using the techniques described in “The WebGraph Framework I: Compression Techniques”, by Paolo Boldi and Sebastiano Vigna, in Proc. of the Thirteenth World–Wide Web Conference, pages 595−601, 2004, ACM Press.This interface provides constants to be used as compression flags.An immutable graph based on the Elias–Fano representation of monotone sequences.A small wrapper around JSAP's standardClassStringParser.A simple abstract class representing an immutable graph.A list of the methods that can be used to load a graph.An abstract immutable graph that throws anUnsupportedOperationExceptionon all random-access methods.An induced subgraph of a given immutable graph.A lazy iterator over the integers.A class providing static methods and objects that do useful things with lazy integer iterators.A lazy iterator over longs.A class providing static methods and objects that do useful things with lazy integer iterators.A skippable lazy iterator over longs.An iterator returning the integers contained in a sequence of intervals.An iterator returning the element of an underlying iterator but filters them using a inclusion-exclusion block list.An iterator returning the union of the integers returned by twoIntIterators.This interface extendsLongIteratorand is used to scan a graph, that is, to read its nodes and their successor lists sequentially.AnImmutableGraphthat corresponds to a graph stored as a scattered list of arcs.AnArcListASCIIGraphwith fixed shift -1.Computes basic statistical data about a given graph.Static methods that manipulate immutable graphs.Provides a method to accept or reject an arc.Provides a method to accept or reject a labelled arc.An arc filter that rejects arcs whose well-known attribute has a value smaller than a given threshold.An arc filter that only accepts arcs whose endpoints belong to the same (if the parameterkeepOnlySameis true) or to different (ifkeepOnlySameis false) classes.An immutable graph representing the union of two given graphs.