public Event next() { StringTokenizer st = new StringTokenizer(line); String outcome = st.nextToken(); int count = st.countTokens(); String[] context = new String[count]; for (int ci = 0; ci < count; ci++) { context[ci] = st.nextToken(); } return (new Event(outcome, context)); }
/** * Generates a string representing the specified event. * * @param event * The event for which a string representation is needed. * @return A string representing the specified event. */ public static String toLine(Event event) { StringBuffer sb = new StringBuffer(); String outcome = event.getOutcome(); if (outcome.length() == 0) outcome = "&null;"; else if (outcome.equals(" ")) outcome = "&space;"; sb.append(outcome); String[] context = event.getContext(); // Assaf: write real values to file float[] values = event.getValues(); for (int ci = 0, cl = context.length; ci < cl; ci++) { sb.append(" " + context[ci]); if (values != null) sb.append("=" + values[ci]); } sb.append(System.getProperty("line.separator")); return sb.toString(); }
public Event next() throws IOException { Event event = eventStream.next(); try { digest.update(event.toString().getBytes("UTF-8")); } catch (UnsupportedEncodingException e) { throw new IllegalStateException("UTF-8 encoding is not available!", e); } return event; }
/** * Generates a string representing the specified event. * @param event The event for which a string representation is needed. * @return A string representing the specified event. */ public static String toLine(Event event) { StringBuffer sb = new StringBuffer(); sb.append(event.getOutcome()); String[] context = event.getContext(); for (int ci=0,cl=context.length;ci<cl;ci++) { sb.append(" "+context[ci]); } sb.append(System.getProperty("line.separator")); return sb.toString(); }
/** * Reads events from <tt>eventStream</tt> into a linked list. The predicates associated with * each event are counted and any which occur at least <tt>cutoff</tt> times are added to the * <tt>predicatesInOut</tt> map along with a unique integer index. * * @param eventStream an <code>EventStream</code> value * @param predicatesInOut a <code>TObjectIntHashMap</code> value * @param cutoff an <code>int</code> value * @return a <code>TLinkedList</code> value */ private LinkedList<Event> computeEventCounts(EventStream eventStream, Map<String, Integer> predicatesInOut, int cutoff) { Set<String> predicateSet = new HashSet<>(); Map<String, Integer> counter = new HashMap<>(); LinkedList<Event> events = new LinkedList<>(); while (eventStream.hasNext()) { Event ev = eventStream.next(); events.addLast(ev); update(ev.getContext(), predicateSet, counter, cutoff); } predCounts = new int[predicateSet.size()]; int index = 0; for (Iterator<String> pi = predicateSet.iterator(); pi.hasNext(); index++) { String predicate = pi.next(); predCounts[index] = counter.get(predicate); predicatesInOut.put(predicate, index); } return events; }
private void trainingStats(MutableContext[] params) { int numCorrect = 0; int oei=0; for (Sequence sequence : sequenceStream) { Event[] taggerEvents = sequenceStream.updateContext(sequence, new PerceptronModel(params,predLabels,pmap,outcomeLabels)); for (int ei=0;ei<taggerEvents.length;ei++,oei++) { int max = omap.get(taggerEvents[ei].getOutcome()); if (max == outcomeList[oei]) { numCorrect ++; } } } display(". ("+numCorrect+"/"+numEvents+") "+((double) numCorrect / numEvents) + "\n"); } }
/** * Generates a string representing the specified event. * @param event The event for which a string representation is needed. * @return A string representing the specified event. */ public static String toLine(Event event) { StringBuilder sb = new StringBuilder(); sb.append(event.getOutcome()); String[] context = event.getContext(); for (int ci=0,cl=context.length;ci<cl;ci++) { sb.append(" ").append(context[ci]); } sb.append(System.getProperty("line.separator")); return sb.toString(); }
Event ev = eventStream.next(); events.addLast(ev); update(ev.getContext(), predicateSet, counter, cutoff);
private void trainingStats(MutableContext[] params) { int numCorrect = 0; int oei=0; for (Sequence sequence : sequenceStream) { Event[] taggerEvents = sequenceStream.updateContext(sequence, new PerceptronModel(params,predLabels,pmap,outcomeLabels)); for (int ei=0;ei<taggerEvents.length;ei++,oei++) { int max = omap.get(taggerEvents[ei].getOutcome()); if (max == outcomeList[oei]) { numCorrect ++; } } } display(". ("+numCorrect+"/"+numEvents+") "+((double) numCorrect / numEvents) + "\n"); } }
public Event next() { StringTokenizer st = new StringTokenizer(line); String outcome = st.nextToken(); int count = st.countTokens(); String[] context = new String[count]; for (int ci = 0; ci < count; ci++) { context[ci] = st.nextToken(); } return (new Event(outcome, context)); }
String[] econtext = ev.getContext(); ComparableEvent ce; String oc = ev.getOutcome(); cons[ci] = indexedContext.get(ci); ce = new ComparableEvent(ocID, cons, ev.getValues()); eventsToCompare.add(ce); } else { System.err.println("Dropped event " + ev.getOutcome() + ":" + Arrays.asList(ev.getContext()));
/** * Generates a string representing the specified event. * @param event The event for which a string representation is needed. * @return A string representing the specified event. */ public static String toLine(Event event) { StringBuilder sb = new StringBuilder(); sb.append(event.getOutcome()); String[] context = event.getContext(); for (int ci=0,cl=context.length;ci<cl;ci++) { sb.append(" ").append(context[ci]); } sb.append(System.getProperty("line.separator")); return sb.toString(); }
Event ev = eventStream.next(); events.addLast(ev); update(ev.getContext(), predicateSet, counter, cutoff);
public Event next() throws IOException { Event event = eventStream.next(); try { digest.update(event.toString().getBytes("UTF-8")); } catch (UnsupportedEncodingException e) { throw new IllegalStateException(e); } return event; }
private Event createEvent(String obs) { int lastSpace = obs.lastIndexOf(separator); if (lastSpace == -1) return null; else return new Event(obs.substring(lastSpace+1), cg.getContext(obs.substring(0, lastSpace))); }
String[] econtext = ev.getContext(); ComparableEvent ce; String oc = ev.getOutcome(); cons[ci] = indexedContext.get(ci); ce = new ComparableEvent(ocID, cons, ev.getValues()); eventsToCompare.add(ce); System.err.println("Dropped event "+ev.getOutcome()+":"+Arrays.asList(ev.getContext()));
String[] econtext = ev.getContext(); ComparableEvent ce; String oc = ev.getOutcome(); eventsToCompare.add(ce); } else { System.err.println("Dropped event " + ev.getOutcome() + ":" + Arrays.asList(ev.getContext()));
eventCount++; eventStore.write(FileEventStream.toLine(ev)); String[] ec = ev.getContext(); update(ec,predicateSet,counter,cutoff);
public Event next() throws IOException { Event event = eventStream.next(); try { digest.update(event.toString().getBytes("UTF-8")); } catch (UnsupportedEncodingException e) { throw new IllegalStateException("UTF-8 encoding is not available!", e); } return event; }
private Event createEvent(String obs) { int lastSpace = obs.lastIndexOf(' '); if (lastSpace == -1) return null; else { String[] contexts = obs.substring(0,lastSpace).split("\\s+"); float[] values = RealValueFileEventStream.parseContexts(contexts); return new Event(obs.substring(lastSpace+1),contexts,values); } }