Abstract:
Techniques are provided for enabling execution of a process employing a cache. Method steps can include obtaining a first probability of accessing a given artifact in a state Si, obtaining a second probability of using a predicate from a current state Sc in the state Si, determining a benefit of prefetching the given artifact using the predicate based on at least the first probability and the second probability, and whether and/or when a cache replacement should be conducted, based at least on the benefit determined.
Abstract:
A method of utilizing one or more hints for query processing over a hierarchical tagged data structure having a plurality of nodes in a computing system having memory, the hint being positive if there is a tag accessible in top-down traversal from a child node, and otherwise negative. For each tag in the data structure, the method calculates a bitmap for a current node with all bits set to 1 and for each child node, followed by AND-ing all child bitmaps and setting a bit corresponding to a tag ID of a current tag to zero if such current tag exists. The method further sets a bit of a current tag to 0, calculates a plurality of possible non-redundant hints for each child node, and refreshes a hint list.
Abstract:
Methods and systems for analyzing XML documents. The system scans an XML document, identifies different dimensions that span the XML document and detects scoping relationships amongst them. The system uses the dimensional information to create a logical hierarchical scoped dimension analysis model, maps the logical XML tree to this model, and then implements the analytical method over the logical model. The logical model allows both structural features and numeric/non-numeric data to be used for analysis. The analytical method allows users to query irregular structural properties of the XML documents using the XPath navigational API.
Abstract:
A method of utilizing one or more hints for query processing over a hierarchical tagged data structure having a plurality of nodes in a computing system having memory, the hint being positive if there is a tag accessible in top-down traversal from a child node, and otherwise negative. For each tag in the data structure, the method calculates a bitmap for a current node with all bits set to 1 and for each child node, followed by AND-ing all child bitmaps and setting a bit corresponding to a tag ID of a current tag to zero if such current tag exists. The method further sets a bit of a current tag to 0, calculates a plurality of possible non-redundant hints for each child node, and refreshes a hint list.
Abstract:
A method of and an apparatus for ascertaining a knock intensity signal of an internal combustion engine, wherein an electrical light signal corresponding to the light emission in the combustion chamber is obtained by way of an optical sensor which extends into the combustion chamber, and by way of a photodetector, and then evaluated, wherein firstly the first derivative of the electrical light signal in respect of time is formed and a knock intensity signal is obtained therefrom.
Abstract:
Systems and methods of estimating a fluid injector tip temperature. A controller having a processor and a memory supplies a current to a coil of a fluid injector, a resistance of the coil is measured when the current is supplied to the coil, a coil temperature is determined based on the measured resistance, and a tip temperature of a fluid injector tip is estimated based on the determined coil temperature.
Abstract:
The invention relates to an insulation displacement connection and to a method for connecting two components, especially for high current applications, said connection comprising a first insulation displacement element, which is fixed to a first component, and a second insulation displacement element, which is fixed to a second component. The two insulation displacement elements can be inserted into each other in the direction of assembly, the first and/or second insulation displacement element being fixed to the first and/or second component in such a way that the insulation displacement element is moveably arranged in a plane transversal to the direction of assembly.
Abstract:
Disclosed is a method for determining a pixel gray scale value image, particularly for a multi-dimensional image system. According to said method a first modulation signal (M1) which is emitted at the emitting end and is reflected on an object that is to be recorded is correlated with a second modulation signal (M2) and is recorded at the receiving end based on at least two correlation signals (Ua, Ub or Ia, Ib) that are proportional to the respective received first modulation signal (M1). One of said modulation signals (M1, M2) is phase shifted in several phase steps (ψk) at the emitting or receiving end and a differential signal (D) is determined for each phase step (ψk) based on the correlation signals (Ua, Ub or Ia, Ib,) and a pixel gray scale value (PGray) is determined based on said difference signal (D) independently of interfering signals.
Abstract:
Methods and apparatus are provided for incremental approximate nearest neighbor searching. An approximate nearest neighbor is incrementally retrieved from a data set having a plurality of objects and cells of objects in a hierarchical organization based on a query object. The present invention maintains an object priority queue to organize the objects based on a distance to the query object and a cell priority queue to organize the cells of objects based on a distance to the query object. The next approximate nearest neighbor is incrementally retrieved based on a state of one or more of the object priority queue and the cell priority queue.
Abstract:
The invention relates to a photodetector arrangement for stray light compensation with a photodetector unit for detecting and determining at least two measuring signals and with a differential unit for subtraction of the measuring signals, wherein between the photodetector unit and the differential unit a compensation unit is provided for compensating the constant components forming the basis of the respective measuring signal.